HPP3 dyno results... [Archive]

oxidizr

03-13-2002, 07:20 AM

Well I'm off to the dyno this morning...

I will be posting results today and should have the graphs up tomorrow.

On a side note, I am bringing a stock 02' SCSB 5.3 w/ 1300 miles (about the same as mine when I posted back in October) with me to do some baseline testing. Partial 3rd gear and a couple of 2nd gear pulls.

We'll see if the 02' difference is all that much.

Richard

oxidizr

03-13-2002, 01:42 PM

Testing completed....

First off the HPP3 results:

The first three passes of the day were to get some solid baseline numbers.

Peak RWHP N/A: 278.2
Peak RWTQ N/A: 318.0

The next three passes were after HPP powertuning was installed. The power tuning for 93 octane was used along with 160* stat.

Peak RWHP N/A: 291.2
Peak RWTQ N/A: 325.4

Final analysis:

13 RWHP
7.4 RWTQ

The power was made evenly across the entire tested curve and even opens up some above 4700 rpm.

HPP3 = worthwhile mod

Richard

99GMC

03-13-2002, 01:51 PM

Did you try the 87 tuning?

oxidizr

03-13-2002, 02:44 PM

Unfortunately no 87 tuning made it into today's agenda.

Richard

bigred305

03-13-2002, 06:35 PM

Looks like that 2002 made more power than most of the 1999-2001's usually do...

Does that prove that the 2002's are stronger or was it just a lucky one?

bigred305

03-13-2002, 06:41 PM

Nevermind I read your other post....:dunce: :dunce: :dunce:

RedHawk

03-13-2002, 07:29 PM

Great info Oxidizer !

I know I got .46 second drop in ET with my hpp3 program..Thats is huge.. A lot of heads and cam packages don`t give you that ..

Its a GREAT mod for 350 bucks..

99GMC

03-13-2002, 07:31 PM

Originally posted by RedHawk
Great info Oxidizer !

I know I got 4.6 second drop in ET with my hpp3 program..Thats is huge.. A lot of heads and cam packages don`t give you that ..

Its a GREAT mod for 350 bucks..

Wait, 4.6??????????:read: :crazy:

BaileyMoto

03-13-2002, 07:40 PM

think those results should be expected for the 5.3 as well? Did you get YOUR truck on the dyno by chance?

HENRY

03-13-2002, 07:42 PM

Originally posted by 99GMC

Wait, 4.6??????????:read: :crazy:

Holy SHIT!!! You lowerd your ET by 4.6 sec's????????

2002sierra

03-13-2002, 08:08 PM

Originally posted by Henry C

Holy SHIT!!! You lowerd your ET by 4.6 sec's????????
:LOL:

RedHawk

03-14-2002, 11:59 AM

HOLLY SHIT ,,,,,,,, I had a typo :)

Don`t sweat it , I edited my mistake. Hey, but a little more juice and I may be there..hehe 16.4`s stock and 13.5s now.Hmmmm, note to self: Start testing/ATAPing 175 shot , with new tires..hahaha

Rolando

05-19-2002, 02:26 AM

Hey oxidizr,

Do you remember what your hypertech settings were/are?

Mine are:

1-2=+3
2-3=+10
3-4=+5
Rev Limiter=6100
Max Speed=128
Fuel=93
Firm Shift=Yes

Thanks!

oxidizr

05-19-2002, 10:28 AM

Thermostat = 160
1-2=+4
2-3=+8
3-4=0
Rev Limiter=6000
Max Speed=128
Fuel=93
Firm Shift=Aftermarket Shift kit

Richard

Rolando

05-19-2002, 11:05 AM

Cool, thanks Richard. I'll test it out.

skp_sr

05-19-2002, 11:09 AM

really?

Rolando

05-20-2002, 07:27 AM

I took an average of 5 people who have similar engine types and here's what it came out to:

1-2=+3
2-3=+9
4-5=+5
Rev Limiter=6100

My assumption is that they want to stay in that "sweet spot" at the get go.

BuiltupBowtie

08-09-2002, 08:28 PM

How is the SOTP meter after installing the hppIII? can you tell a difference?

Quick03

08-26-2002, 08:42 PM

Originally posted by oxidizr
On a side note, I am bringing a stock 02' SCSB 5.3 w/ 1300 miles.

Testing completed....

First off the HPP3 results:

The first three passes of the day were to get some solid baseline numbers.

Peak RWHP N/A: 278.2
Peak RWTQ N/A: 318.0

I'm new to the board so don't kill me, but am I missing something? 278 rwhp out of a stock 5.3L?

Nick

08-26-2002, 09:02 PM

Originally posted by Quick03

I'm new to the board so don't kill me, but am I missing something? 278 rwhp out of a stock 5.3L? Yes, that was his buddies truck, his is a 2001. Check his sig. :D

2001 Silverado 5.3L SBSC 2WD
Current Mods:
*Flex-e-Lite 250 Electric Fans *Custom 4" Intake and Blitz filter
*NOS 130 HP dry nitrous system *ASM Full-length Headers w/ Dual Cutouts
*ASP Pullies*Vig 3500 *TransGo *HPPIII *Hal shocks *Caltrac bars
*Hotchkis Rear Swaybar*TA girdle*US Gear 4.10:1*Detroit Locker

Tom400CFI

09-11-2002, 12:32 PM

Does anyone know what the effect of and HPP3 is on the '96 -'99 style 350? Could we assume the results would be similar?

Rob2K2

09-23-2002, 10:04 PM

Can you use the same settings for s 4.3?

red53gmc

10-01-2002, 12:48 AM

Originally posted by Nick99Chevy
Yes, that was his buddies truck, his is a 2001. Check his sig. :D

2001 Silverado 5.3L SBSC 2WD
Current Mods:
*Flex-e-Lite 250 Electric Fans *Custom 4" Intake and Blitz filter
*NOS 130 HP dry nitrous system *ASM Full-length Headers w/ Dual Cutouts
*ASP Pullies*Vig 3500 *TransGo *HPPIII *Hal shocks *Caltrac bars
*Hotchkis Rear Swaybar*TA girdle*US Gear 4.10:1*Detroit Locker

I believe that was Oxi's truck with and w/o the HPP3. The 291rwhp/315rwtq was what I was dynoing with my 01 Sierra. Mods were HPP3, Yank 3200, Hamm headers, ASP pulley, Electric fans, and K&N fipk.

Nick

10-01-2002, 04:15 PM

You wait a month to point out my mistakes? :cussing: :D :D :D

The_Researcher

12-05-2002, 07:44 PM

U can change tire diameter setting as well correct?

Nick

12-08-2002, 04:46 PM

Originally posted by Jeff@AAC
U can change tire diameter setting as well correct? Correct. :D

'03RedMonster

01-17-2003, 08:08 AM

I'm guessing the use of a 160 thermostat made a decent difference as well. Both my LS1's the 5.7 out of the Camaro and this 5.3 feel noticebly more powerful in cold 50degree driving then in warmer 80degree+ heat. The ford and dodge v8s dont seem to be so finicky, at least the ones ive drivin. ANyone else notice a power difference in temperatures?

:cool:

Z71IN'

03-22-2003, 04:05 PM

Originally posted by Tom400CFI
Does anyone know what the effect of and HPP3 is on the '96 -'99 style 350? Could we assume the results would be similar?

:word: :iamwithst:
Anyone know the answer to this question??? Vortec 5.7 guys, any reports???????????????????????????
:confused: :confused: :confused: :confused:

thrlride

04-03-2003, 07:38 AM

I loaded the HPP3 on my 97 tahoe and it is slightly quicker. I haven't done the quarter or dyno'ed but it just feels better. I put the 160 stat in but I still couldn't stop the spark knock that started so I put in 89 octane and that didn't help so I put in 93 octane and that cleared it up. But now that 93 is $1.80 in NC I have gone back to 87. I also put in a 180 stat because it took forever to get heat in the winter with the 160. Now that it is warmer outside I plan on switching back to the 160.

Hulkster

04-17-2003, 08:37 PM

Any results for a 5.7?:confused:

chevytruckguy

04-18-2003, 01:11 AM

Just got my HPP3 yesterday. I have a 2000 tahoe limited with the 5.7 vortec motor, 3.42 gears, 275/45-20 tires, flowmaster cat-back kit, and a K&N filter. I know the G-tech's are not that accurate, but it's better than nothing. Bone stock it ran 16.00 @88.0 mph. With the 20's, flowmaster and K&N it ran 16.25 @ 86.8 mph. After the hypertech programming it ran 16.20 @ 87.10 mph. The settings on the hypertech were, 29.75 inch tire, 128 mph top speed, firmer transmission shifts, tuning for 93 octane, and stock thermostat. In first and second it pulled great, but in third, at around 3000 rpm/80 mph it just would not pull. After reaching 3300 it started to pull again. I'm guessing it was either air resistance or detonation, but i didn't hear any pinging. I thought there would have been more of an improvement, and I'm kind of disappointed. Temps were all around 55-65 degrees. In the winter, I did run it in 30 degree air and it ran 15.75 @89 mph; and that was without the hypertech. I know the 20's probably made my tahoe slower than stock, but for over $300 the hypertech should have made more of an improvement. Any help would be greatly appreciated.

thrlride

04-21-2003, 06:41 AM

Yeah, my Tahoe got a little slower after I put on the 20's, same tire size as you. Them things are just heavy! I think I actually lost some MPG too!

TXvortec350

05-02-2003, 09:07 PM

You should see any where from 8-13rwhp gains and 10-15rwtq gains.The 5.3s are strong and put out better rwhp numbers than our vortec 350s,but the torque is preety closr to the same.But we wont catch them on rwhp.Ive vortec350s put out a little more torque than the 5.3s on the dyno but the 5.3s had more rwhp.

iamairdeano

05-06-2003, 11:14 PM

1996-2000 5.7L (L31)
255hp @ 4800rpm & 330 lb/ft torque @ 2850rpm

2000-2002 5.3L (LM7)
265hp @ 4800rpm & 300 lb/ft torque @ 2850rpm
285hp @ 5200rpm & 325 lb/ft torque @ 4000rpm
as per GM Powertrain

ya gotta get the rpm up to make the 5.3L pull hard. a looser
converter can shave .5 sec off 1/4mi time.

airdeano

badburban

05-07-2003, 09:50 PM

airdeano

Its good to see ya back here again. Havent seen ya around in a while. I take it the promotion has kept ya really busy.

Josh

iamairdeano

05-09-2003, 12:17 AM

yezer' josh.. totally busy.
hey been reading some posts.. your a tuner now, eh?
learnin' my business... heyyyyyy..
go for it, dude ^5
thanks for the recog
airdeano

badburban

05-09-2003, 04:24 PM

airdeano

Well Im working on it. I wouldnt necessarily call myself a tuner but maybe a redneck with too much technology :LOL: :crazy: In all seriousness though After a week of spending a couple hours a night after work Im finally starting to get my fuel tables straightened out. Its crazy though because at idle my ve is like 40-45 and its a tad rich by 2k rpm Ive got ve at about mid70's to lower 80's depending on map values yet its lean. This wasnt what I thought it would want but I learned one very important thing real fast and thats give it what it wants not what I think it wants. Hey if you dont mind im gonna send ya a pm. I need a bit of help on my spark tables. Ignition timing is where I lack alot of knowledge.

But Im glad the promotion kept ya busy and things are going well. Also Im the guy who had the bolts for the tbi spacer break back in like august. i never told you thanks for gettting em out to me so quick. Thanks

Josh

loudblack97z71

05-22-2003, 09:56 AM

i put a HPP3 on my 97 w/ 5.0 and the burnout length damn near tripled. on top it gave me better passing power when it downshifts too. it's worth the $350 in my opinion.

-don't have access to a dyno, i knoe it sucks!

5.7-Vortec

05-29-2003, 02:34 AM

ok I am a little confused here. The stock at flywheel numbers are:
1996-2000 5.7L (L31)
255hp @ 4800rpm & 330 lb/ft torque @ 2850rpm

2000-2002 5.3L (LM7)
265hp @ 4800rpm & 300 lb/ft torque @ 2850rpm
285hp @ 5200rpm & 325 lb/ft torque @ 4000rpm
as per GM Powertrain

But your rear wheel dyno with headers, fans, pullies is:
Dyno: 291 RWHP / 347 RWTQ

Every Dyno I have seen for the 5.7 at the rear wheels is at 180 or so stock and 198 or so with comparable mods which would translate to the 15-20 percent loss from the flywheel to the rear wheels with 255hp at the flywheel.

But on the 5.3 at 285 at the flywheel to 291 at the back tires on the dyno????? That just does not compute. That would mean that the simple mods you added increased hp by 90hp???? You hidding a supercharger and calling it stock????

thrlride

05-29-2003, 06:46 AM

I think GM is hidng the true power of these LS1 motors. The camaro/firebirds regularly dyno at 290-310 at thetires stock and they come with 305-325.

5.7-Vortec

05-29-2003, 07:16 PM

So it seams that the Vortec 5.0 and 5.7 put out exactly what is advertised (178 to 198 with simple mods at the tires) and the LS1 5.3 puts out alot more say a supercharger's worth over the 5.7 at (291 with simple mods at the back tire).

So if I were to supercharge my 97 5.7 I would be where a stock 5.3 is without a superchager:mad: :bawl: :to: :thumbsdow

Well I guess the next step is to stop wasting money on the 5.7 Vortec and see if a 5.3 or 6.0 would drop in and hook up to the tranny in my 97 Chevy K1500 4x4 Silverado????

What items would I have to get for the conversion?

airdeano

05-29-2003, 09:59 PM

heres something:
2002 ws6 trans-am ram air rated 325hp @ 5200RPM 330tq @4000rpm
dynoed 288rwhp @ 5500rpm & 280rwtq @ 4200rpm
if you correct for automatic that 20%
thats +57hp and +48tq equaling 257flyhp@5500rpm & 338flytq.
now the kicker... your buying a corvette ($45000+) rated 345hp
and 360tq. compared to the fbody (25000+) @325hp. you really
dont wanna run off the customers.. numbers are one thing
stigma and prestige is another.
the ls1tech guys are beeming with hop ups galore..
airdeano

5.7-Vortec

05-30-2003, 04:49 AM

Well I looked at a couple sites to see the chasis dyno figures for the 5.7 and the 5.3

http://www.magnacharger.com/gmtruck57.htm
http://www.magnacharger.com/images/gm57-4.jpg
truck 5.7 Vortec= 180hp and 220tq stock

http://www.magnacharger.com/gmtruck485360.htm
http://www.magnacharger.com/images/gm53-4.jpg
truck 5.3 LS1= 190hp and 250tq stock

those numbers sound more realistic for parastatic losses from the flywheel to the rubber

anyone else have chasis dyno numbers for the 5.3 either stock or with simple mods, headers, intake, t-stat-programmer???

I am not buying the non-supercharged-non laughing gas stock 5.3 engine with headers, fans, pullies running
Dyno: 291 RWHP / 347 RWTQ

please show me more examples
thanks

BlueZ

06-03-2003, 03:45 PM

Stock for stock the 5.7 has a definite torque advantage over the 5.3. Just drive a 96-99 and then get in a 00-02 and you will see the dif. Thats just my experience.

MarineBlue03GMC

06-17-2003, 03:37 PM

First I must say that I am also very interested in dyno results on factory stock 5.3s and other LS1 based trucks. I also am interested in the hp/tq losses that result from a power transfer to the rear wheels.

I was looking at airdeanos post and I noticed that a 325hp Firebird with a 20% hp loss should yield 260hp to the wheels not 288hp. Now if the firebird actually dynoed at 288hp to the wheels then with the 20% hp loss its really making 360hp! That's 35hp over the factory hp claim!
Anyway I dont really have any point to mentioning this other than to show how difficult it is to really trust a dyno sheet posted on the net. It is also important to remember that some cars/trucks just make more power from the factory then their bretheren.

As far as the magnacharger dynos go that 5.7 vortec posted, well those magnacharger dynos show a 1999 truck. The 99s have 20+ FEWER hp than the 02/03's. Supposedly the 02-03s, maybe the 01s have a newer cam that makes more power, along with some other engine/pcm tuning tweaks.

v8toilet

06-26-2003, 08:37 PM

You cannot compare two dyno charts from two different dynos. Dynamometers differ from dyno to dyno and atmospheric conditions affect the results too. There was a 2002 Silverado 4.8-liter truck engine that dynode 196 horsepower and 237 ft. lb. of torque the same day I put my truck on the dyno for your reference.

Nick

06-26-2003, 08:59 PM

Originally posted by MarineBlue03GMC

I was looking at airdeanos post and I noticed that a 325hp Firebird with a 20% hp loss should yield 260hp to the wheels not 288hp. Now if the firebird actually dynoed at 288hp to the wheels then with the 20% hp loss its really making 360hp! That's 35hp over the factory hp claim!
Anyway I dont really have any point to mentioning this other than to show how difficult it is to really trust a dyno sheet posted on the net. It is also important to remember that some cars/trucks just make more power from the factory then their bretheren.

Read around the LS1 forums, LS1's are pretty under-rated by the factory. Most dyno around 300 rwhp stock. :read: :D

MarineBlue03GMC

06-26-2003, 09:11 PM

I do agree that ls1s are underated, BUT I really think the issue is finding a "true" percentage to use when figuring in flywheel to wheel hp/tq loss.

DrededSS

06-26-2003, 09:30 PM

A dyno gets things tuned out, the track is where you find out what your mods can do:read:.

Dred

jerseymikem

06-26-2003, 09:36 PM

it was .46 wow 4.6 would be absolutely incredible, i would love to do that:rocking:

MarineBlue03GMC

06-26-2003, 10:19 PM

I agree that dragstip times really show how a vehicle is really setup. Its not just about hp BUT I really would like to get an idea of an average percentage to use when figuring in flywheel to wheel hp/tq loss, specifically on 5.3's.

Right now I am trying to collect as many naturally aspirated, preferably stock 5.3 truck dynos. If anyone has these dyno results available or has links to them please let me know.
:D

thrlride

07-01-2003, 08:08 AM

From what I have experienced, 25% is common driveline loss for an automatic and 18% for a manual.

MarineBlue03GMC

07-01-2003, 08:57 PM

yea I would think that AT LEAST a 20% driveline loss for automatic rear drivers. Its AMAZING how many opinions there are on this subject!

Wayne2

07-04-2003, 02:57 PM

Originally posted by v8toilet
You cannot compare two dyno charts from two different dynos. Dynamometers differ from dyno to dyno and atmospheric conditions affect the results too. There was a 2002 Silverado 4.8-liter truck engine that dynode 196 horsepower and 237 ft. lb. of torque the same day I put my truck on the dyno for your reference.
While I agree that comparing numbers from 2 different dynos isn't a real good idea I thought they were corrected for atmospheric conditions. The one that I use, locally, is.

Wayne2

07-04-2003, 03:10 PM

Originally posted by Rolando
Hey oxidizr,

Do you remember what your hypertech settings were/are?

Mine are:

1-2=+3
2-3=+10
3-4=+5
Rev Limiter=6100
Max Speed=128
Fuel=93
Firm Shift=Yes

Thanks!
My mods are Volant with ram air tube, descreened MAF 180 thermo, and Borla catback. I used: 1-2=+3
2-3=+8
Rev Limiter=6000
Max speed=128 (of course)
Fuel=93
Firm Shift= Yes
With these mods it seems as though the engine is winding a bit too high in 1st and 2nd. That makes it shift at ~5800 in each gear. Just my butt feeling or is that a bit high? What does anyone think.

MarineBlue03GMC

07-04-2003, 05:04 PM

I have a predator tuner on my 03 set at 5800 rpm gear shifts in every gear.

I have a feeling that shifts at this rpm level may be pointless and a bit to high BUT I have yet to hear or see any BETTER alternatives.

I have yet to take my truck to the track with these settings (or my predator/headers) and plan to do so on the 11th. Hopefully I will have some time to try making runs with various shift points to see what works best.

After looking at my dyno charts it is clear that the engine's power starts to drop off after 5580 rpms.

If anyone has some good shift point suggestions for my truck, other than 5800 rpm gear shifts in every gear, then please let me know :D

DPG

09-27-2003, 11:49 PM

I installed the Hypertech PPIII in my 1997 extended cab 5.7L. Just got the chance to run it last night. My first run I fu*ing went through 2 gears at the line because i punched it too hard. 2nd run i hooked up good and took a mustang gt at the 1/8 mile but he got me near the end of the 1/4 mile. :cussing:

Before HPPIII

16.3@80mph

After HPPIII

15.9@83mph

Fizerchevy

11-10-2003, 07:00 PM

Where ya gonna Dyno

Bearfoot

11-12-2003, 10:14 AM

does the hypertech work as good on 03 as on 99 thanks

Bearfoot

11-20-2003, 10:25 AM

:( has anyone used a hypertech on a 2003 5.3? do they work good

tahoe2003

11-24-2003, 07:30 PM

I think he means .46:think:

tahoe2003

11-24-2003, 07:36 PM

I have the Hypertech on on 03 and it work great:LOL:

funinmud

12-22-2003, 11:30 PM

Just read all these posts. Pretty interesting numbers you guys got.

I have a 98 K-1500 with the 5.7 and auto.

Would ya recomend the hypertech to a guy who wheels? Think it would be worth it to get that extra little power to spin bigger tires and what not????

Also I've read you can input the octane you will be running, does this mean there are different programs or is there either a 87 octane and 93 octane program?

Does the 87 octane program really do anything??

I'm real interested because of the ability to adjust for tire/gear ratios.

Thanks!!!

zackm58941

01-10-2004, 01:14 PM

i'm cnsidering the hypertech tuner for my 2004 gmc z71 and i was woundering if therewas a noticable difference felt when you ge on the gas? how good does tuning work for 87 oct?

toneman

01-15-2004, 05:12 PM

Anyone willing to offer up HPP3 shift point, rev limiter, and top speed values for an all-stock NBS Denali (specifically, an '04 if possible)?

Thanks!

Bearfoot

01-15-2004, 06:15 PM

max all points out I did works great ran that way 3 years still runs great

2001rotax800

03-30-2004, 01:58 PM

Maybe it was his reaction time he lowered... LOL

BBowtie027

04-15-2004, 07:46 AM

It's been a LONG time since I have posted on here. I have a 1996 reg swb with the 5.7l 350. I used to have the HPP+, 3.73's with an Eaton, Air-raid intake, T.B.S., ASP pullies, Flowmaster mufflers, and a 160* stat. The best it ran was a 9.39 @ 72.xx mph with a 2.03 60 ft.(averaged about a 9.40-9.45-in the 1/8th). I dyno'd it about a year ago and it put down 226 hp and 315 ft/lb's.
I have since taken everything off of it, cause I was gonna sell, it, but I tihnk I might have some new plans in mind. Ill keep yall posted.
Brad

AvCrusher

04-21-2004, 09:14 PM

I just picked up an 02 Avalanche and it's stock right now.. but I'm lookin to invest some $$$ into it.. I like the ability to be able to change the computer around though... has anyone noticed severe decrease in fuel economy with one of these? The way I drive my Av I don't get the greatest gas mileage as is.

belmont

04-25-2004, 05:14 AM

anyone use it on a 2000 4.8?

AnthonyZ71

08-21-2004, 12:58 PM

not 4.6, he said .46...still pretty good

OzzHead

08-27-2004, 02:21 PM

I just got a HPPIII for my 2001 5.3 1500k 4x4 truck. But ive beening having a little bit of a transmission problem shifting from 1st to 2nd. Right now i have the shift point for 1st at +2. At this point it shifts just fine. But if i moved it to +3 it sounds and feels like it shifts alot harder on the transmisson..Is that normal? Also ive tried it puting it higher then a 3 and it wont even shift to 2nd it like skips over and over and i know that cant be good for it. So as of right now i have it at +2 but i liked +3 better but i dont know if its bad for the tranny or not.

Also i have Shift frimness on too if that matters at all about this.

Bearfoot

08-28-2004, 05:34 PM

yor are hitting rev. limiter raise rpmred line up

OzzHead

08-29-2004, 12:49 PM

yor are hitting rev. limiter raise rpmred line up

So if i raised my rev limiter higher it shouldnt do it?

Bearfoot

09-01-2004, 06:15 PM

yes mine is at 6200rpm try it you will like it

OzzHead

09-01-2004, 10:28 PM

I went to 6100, and it shifts so much smoother now, THANKS

lilkenny

12-20-2004, 02:09 PM

Anyone willing to offer up HPP3 shift point, rev limiter, and top speed values for an all-stock NBS Denali (specifically, an '04 if possible)?

Thanks!

If you look earlier in this thread there are suggested shift points. I just installed a HPP3 on my 03 Tahoe 5.3 with the suggested shift points and it worked GREAT!!! There was a noticable difference in the performance of the engine. I also added the 160 PowerStat.
I ran 93 Octane in it for the first few weeks and then ran 87 Octane on a drive from the east coast to the west coast and averaged about 15 MPG the whole way. I could tell a power difference btwn 87 and 93 but not enough to pay the extra $.20 a gallon.

1-2=+3
2-3=+9
4-5=+5
Rev Limiter=6100
Max Speed=128
Firm Shift=Yes

Black Iced

12-30-2004, 10:51 AM

well guys i just wanted to throw some more numbers out there. However i dont have a HPP3 programmre but i do have the Predator. my truck isnt really tricked out that much performance wise but it will come soon. here what i have, 2002 silverado ECSB 5.3L with MSD 8.5mm wires, NGK TR55 plugs, Diablo Sport Predator, K&N FIPK II and stock 3.42's.

Dynode the truck a few months ago and got these numbers, granted i live in houston and the temp and humidity is horrible.

with Predator

254 rwhp and 301 rwtq

the calculated flywheel numbers

310 fwhp

mistertrustee

03-01-2005, 12:20 PM

Does anyone have any numbers on the HPP3 with their 7.4 liter. I was thinking about buying one, but don't know if it's worth the money

litemup91

03-26-2005, 07:09 PM

hey where can u get a hpp3 chip? i have a 91 5.7 and i am gonna buy a procharger p1sc . is 8-9 psi alright for a stock motor with bolt onj mods like exhaust, header, k+N next generation intake and headers?? the motor is brand new though and i also have a hypertech chip but i dont really notice is to much

sonjaab

04-29-2005, 12:41 PM

GUYS.........I just installed a Hypertech 3 tune to my bone
stock04 6.0 2500 x-cab.
I set it for 93 octane, improved shift points, etc.

Using 87 fuel till the tank is dry............ Then 93
Now does a wicked burn out and squeeks em' in 2nd !
Minor spark knock using 87 tho. when pounding on it...............

Mid range seems a bit doggy.........

Will give it a taste of 93 then report back !

Hopefully my mpg will improve....thats what I am mainly looking for !
After I have my hot rod fun tho!..........geo :burn:

sonjaab

05-01-2005, 09:49 AM

Turnin20s

05-05-2005, 07:41 PM

Sweet 17 to 21 thats awesome

Dave

06-15-2005, 09:10 AM

Iced, Are you using the factory Predator performance settings or do you make a change on settings. Very good E.T.
Thanks

Dave

XoAmandaXo

06-20-2005, 12:01 PM

HPP3 = worthwhile mod

Someone told me that the HPP3 was a waste when you can just get a new PCM. ?? I dont kno much about the PCM, is that true??

duplantisjj

08-03-2005, 08:16 PM

I think the HPP3 is great for an engine with a few mods. I just put in a wait4me custom tune and it's pretty impressive when compared to the HPP3 and my mods.

I do have my HPP3 for sale in the "for sale" forum anyone is interested. Link is Here (http://www.fullsizechevy.com/forums/showthread.php?p=1712640#post1712640)

John

03corona

08-23-2005, 11:16 AM

Ok, I have a few questions so please bare with me....1st. does changing your shift points act as if the topw haul was on, thefore extending the "gear"? Second Why is every one maxing out here rev limiter, the hypertech website shows max hp at around 5000-5200, and then drops? Also if you change your shift points and say put your rev limiter around 5200 and you turn the tow haul on the rev limit hits. Whats the best way to configure a 6.0 with 4:10's. I do ocassinly tow, but if i change the shift points would i still use the tow/haul? Because the tow/haul tels the tranny that theres a load right, and in doing that it extends the gear? Thanks. And why does every one have different number for each gear. person (a) is +3,+8,+ 5, and person b could be +4,+9,+5. Can you really tell the difference in 1 or 2 mph? Thanks.

Atomic

08-23-2005, 04:50 PM

They raise the rev limit higher because even though the engine is not operating at maximum power, the downshift wont bog you down as much. If you shifted at say 5200rpm on a 5.3l from 1st to second your rpm would go from 5200 to about 2550rpm, however if you did it at 6000 where the engine is still making plently of power youd only drop to 3200 which is much closer to the engines peak output.

StuckInTime

08-24-2005, 09:51 PM

YO!..........After a short 100 mile hiway round trip............
MPG improved from 17 to 21 mpg !

Haven't had a chance to drive sanely around town yet to check
city avg. mpg....................

TOO MUCH FUN flogging this 6.0 off corners and stoplight drag fun!
(SAFELY of course !)

My other 01 6.0 was a PIG off the line also !
..............geo
Wow, I must really be doing something wrong. I am only averaging around 11 mpg city with my '05 6.0L, and not much better highway. I usually run 89 octane, and I've got 4.10's with the Wait4mePerformance custom tune. I also have dual exhaust all the way out the back with Flowmaster mufflers (3" inlet, 2.5" outlet). What kind of exhaust are you running? -TK

sonjaab

08-24-2005, 11:25 PM

StuckInTime

08-25-2005, 06:44 AM

STUCK...........Bone stock, unloaded, a/c on w/ tonneau cover.
Changed the rpm cut off to 6100. Left the factory shift points.
Using the cheapest gas I can find too !

You have to remember these GM truck V-8s need back pressure !
I see all the posts about adding a free flowing exaust on and losing
performance as well as gas mileage
Thanks. Guess I'll have to find some mufflers that provide a little more restriction. The exhaust shop that did the duals claimed they had done a couple others that way and it improved the mileage, but I saw quite the opposite. It probably dropped the mileage by a couple mpg. Back to the drawing board... -TK

sonjaab

08-25-2005, 09:01 AM

StuckInTime

08-25-2005, 09:16 AM

STUCK..........You have bigger tires and a lift too...............

I can assume you adjusted for tire size also correct?

Even if the tire size is off a bit the calculations for speedo will be also
and show lower than actual mpg..................

EDIT: What is the biggest tire size the Hypertech3 unit allows for
in its setup? If memory serves me NO 305 ?????
I have a Wait4me Performance custom tune by Jesse Bubb. I actually drove down to see him since he is only an hour from me. He did re-program for the larger tires. He said it was off by about 10%. I haven't tested yet to see how accurate the speedo is now, but something definitely got adjusted. I was showing 2200 rpm @ 60 mph, now it shows 2000 rpm @ 60 mph. I'm thinking of going back to the exhaust shop for a little more restrictive mufflers. I would like to get a little better gas mileage because with my plans I am only going to hurt this thing more. I hope by the end of September I will be riding on 38's. I realize I will need to re-gear, and it looks like I can only go to 4.88's (at least that's all I'm finding). Not sure what my final ratio will be after that. If 5.13's are availabe, which I haven't found yet, I would like to go to that. The funny part is here's a guy with a perfectly good new truck, and all I want to do is change everything and still hope for decent gas mileage... :banghead: But then again, why roll stock when you can roll large! :head: -TK

gnd111

09-15-2005, 11:14 AM

STUCK...........Bone stock, unloaded, a/c on w/ tonneau cover.
Changed the rpm cut off to 6100. Left the factory shift points.
Using the cheapest gas I can find too !

You have to remember these GM truck V-8s need back pressure !
I see all the posts about adding a free flowing exaust on and losing
performance as well as gas mileage

Nothing needs backpressure. There is no data to support statements like that. Breath in and breath out - the faster, better you can do those 2 things the more performance you get...

Joe

09-15-2005, 11:16 AM

Nothing needs backpressure. There is no data to support statements like that. Breath in and breath out - the faster, better you can do those 2 things the more performance you get...
You need that backpressure for LOW end power not HIGH end power from what I have heard.

gnd111

09-15-2005, 11:18 AM

You need that backpressure for LOW end power not HIGH end power from what I have heard.

You won't find anything to prove backpressure keeps torque. It makes no sense - plug an exhaust port and you lose performance - period...

Of course alot of all this pertains to tuning as a whole.

Joe

09-15-2005, 11:21 AM

You won't find anything to prove backpressure keeps torque. It makes no sense - plug an exhaust port and you lose performance - period...

Of course alot of all this pertains to tuning as a whole.
Make a pass with your exhaust then make another without it... Do you think you will have the same power on the low end?

StuckInTime

09-15-2005, 11:22 AM

Nothing needs backpressure. There is no data to support statements like that. Breath in and breath out - the faster, better you can do those 2 things the more performance you get...
I'm not a GM engineer, so I'm only going off what I hear. However, I did seem to lose a couple of miles per gallon after ditching the factory muffler and having 'true' duals installed.

gnd111

09-15-2005, 11:23 AM

I wouldn't make a pass in my truck but i will say My motorcycle made much more rwtq and rwhp when i went to big tube header over a stock restrictive. Same way catback (larger diameter) pipes make TQ and HP...

Joe

09-15-2005, 11:25 AM

Keep in mind we are talking relatively stock motors in these trucks. These are not modified race motors...

gnd111

09-15-2005, 11:26 AM

I'm not a GM engineer, so I'm only going off what I hear. However, I did seem to lose a couple of miles per gallon after ditching the factory muffler and having 'true' duals installed.

You shouldn't. Unless your ECU couldn't compensate properly for the AFR changes.

gnd111

09-15-2005, 11:27 AM

Keep in mind we are talking relatively stock motors in these trucks. These are not modified race motors...

I agree but less restrictive in and less restrictive out makes more tq and hp throughout the curve.

My cycle motor was stock...

GenIIIShorty

09-15-2005, 01:59 PM

it depends on whether you want peak torque or peak hp. and it HAS been shown a header with smaller primaries WILL make more torque, lower down on the RPM scale, then a larger primary, which will make more peak HP, but higher on the scale. of course this usually applies to relatively stock motors, once you start requiring more air, you gotta give it to the motor.

endo

09-18-2005, 01:39 AM

Just got one of these things from my Dad (who just sold his Avalanche which fortunately happened to be same year as my truck :D), and had a few questions.

What is the stock rev limiter setting of a 2004 5.3L (LM7)? 5600RPM?

And to gmcjoe.... have you been running w/ a 6200RPM rev limiter for the 130,000 miles listed on your site?

SilveradoSSC

09-23-2005, 11:28 PM

Ok question I was gonna do a custom tune, but you get these results from a hypertech programmer?? I thought a custom tune is only like $450, for an extra hundred bux why not. If I custom tune will I need to run 93 octane??

sonjaab

09-27-2005, 08:46 PM

Form all the posts I read in these GM truck forums EVERY post I see
from guys who removed the cats and installed some big Flowmaster
or similar exaust system ALL complained about poor or decreased
gas mileage......................??????????????

CK05CC

10-26-2005, 04:22 PM

I gotta chime in on the exhaust thing. As a qualifier, I'm a mechanical engineer, so bear with me.

Tuned exhaust length and diameter are critical in power output for this simple reason, the exhaust pulses and when it does, it creates a vacuum that sucks additional air through the combustion chamber (this is terribly simplified here). A smaller diameter will effectively lower the resonant frequency of the exhaust pulses and therefore give better vacuum at lower rpm - thus more low end power. Larger diameters tune at higher frequencies and will enhance higher rpm power. The length of tubing will affect overall vacuum, but at some point, the length becomes an aiflow load - basically, too long = added restriction. The key is to match the tuned length and diameter to the engines power characteristics. Stock motors can be hurt by large tube exhaust mainly because the rpm where the exhaust enhances the power is higher than the motor would need. I've experienced this at the track where opening up the exhaust increased my trap speed, but made my ET higher at the same time. Low end torque was lost, but high rpm power was increased.

As for gas mileage - I would guess that the big tube/low restriction exhaust is not as efficient at cruise rpm and mileage suffers. It might be different if we cruised at 4500 rpm - but we don't...

StuckInTime

10-27-2005, 07:54 AM

ltn

03-20-2006, 01:06 AM

does this stuff even have to do with the HPP3 anymore

jsteph3919

04-03-2006, 07:32 PM

Hello all

New to the site, and learn a lot from all the topics.
I have a 05 Z71 silverado with a 5.3, flowmaster exhaust, K&N 77 series intake system with a recently bought hypertech III, still playing with it and trying to figure out the best settings for the transmission and rev limiter setting. Anyone got the answer?

tuffguy

04-03-2006, 10:53 PM

I put a Superchips on my 04 and it helped big time. I also put a Flowmaster cat-back on it and it also helped.:thumbup:

Hawgwild

04-19-2006, 06:36 PM

If you look earlier in this thread there are suggested shift points. I just installed a HPP3 on my 03 Tahoe 5.3 with the suggested shift points and it worked GREAT!!! There was a noticable difference in the performance of the engine. I also added the 160 PowerStat.
I ran 93 Octane in it for the first few weeks and then ran 87 Octane on a drive from the east coast to the west coast and averaged about 15 MPG the whole way. I could tell a power difference btwn 87 and 93 but not enough to pay the extra $.20 a gallon.

1-2=+3
2-3=+9
4-5=+5
Rev Limiter=6100
Max Speed=128
Firm Shift=Yes

I received my HPP3 but the shift points are done by RPM. So when you say +3, +9 or +5, are you indicating RPM's or steps?

smokinjoez

05-03-2006, 11:31 AM

Speed.

QuickZilverado

05-14-2006, 11:42 PM

I have a K&N 77 series intake and a 50 series flowmaster (single 3" I/O) and I've noticed no increase in gas mileage in the city but alot better on the freeway. I also noticed alot of low end loss but alot of upper end gain. I hope to get a computer tune so I rev the motor up more. Also, if you have a lift and bigger tires, you're gonna get crappier gas mileage because you have more air resistance under your truck and the tires have more tread so it builds up more friction. You're basically working the motor more that way and you'll get crappier gas mileage.

aaron_c

07-09-2006, 10:19 AM

Can the Hypertech tuner remove TM? Or at least some of it? Thanks guys

sonjaab

07-09-2006, 04:37 PM

AARON.............Sadly the hypertech 3 will NOT alter
the factory torque mgmt. settings..............

I know the Diablo will. Also some PCM burns can be
altered to address torque mgmt. also.

NOTE: I HAVE a Hypertech 3 unit and have asked myself!

aaron_c

07-09-2006, 09:37 PM

Does anyone know what handheld tuners will remove TM? I wouldn't want a W4M style tune, because I've seen dyno charts where they actually lose a little torque after the tune...and I'd like the ability to switch between a tow-oriented tune and a performance-oriented tune.

Also, can you get something like a W4M and remove all your TM that you want, then also get a handheld tuner? What would the affect be?

sonjaab

07-10-2006, 07:15 AM

AARON......To my knowledge the only handheld that
adjusts the TM is the Diablo Preditor.........

With the tunes either handheld or PCM burn its one or
the other NOT both !

aaron_c

07-10-2006, 11:29 AM

Sorry if it seems like I'm jacking this thread, just one more question I think. What are the downsides to the Diablo Predator? Why don't more people get it instead of the Hypertech or Superchips, since it removes TM? Wouldn't it make the biggest difference in 1/4 mile times probably?

sonjaab

07-10-2006, 12:50 PM

A...........No problem..Its better to ask in advance and
know the answer than to take the leap and have regrets
later!

The only downside of the Diablo is its hard to program
and easy to screw up the setting (from what I have read
here and elsewhere).

People read these forums and make their choice........

The torque Mgmt. in the GM 6.0 and 8.1s chokes them to
death at WOT. Read the torque mgmt thread here to
understand how it works............

Since I only keep my trucks till the warranty runs out I
always get a handheld tune. If I break it I just pull the
tune out and wait for the tow truck! I heavy tow and
snowplow so my chances of breaking something and warranty concerns are always a priority. No need worry about
warranty service denile because I "modified" my truck.
I see this issue all over these forums.................
.........geo

aaron_c

07-10-2006, 01:16 PM

I'm not really worried about warranty, I'm gonna be buying my truck used anyway. Could you possibly explain what you mean by 'screwing up the setting'? I'm confused on how you'd mess it up. Also, how much TM does the Diablo remove? Thanks

Timbo1969

07-17-2006, 03:13 PM

Why has no one just spent the $500 and got HP Tuners software.. just add it to your laptop and you can tune everything.. providing you know what you're doing..

sonjaab

07-17-2006, 03:43 PM

TIM..thats the BIG "IF" !

If you have no idea what your doing you can screw things up.

AARON......The diablo can remove any or all ot the TM program.
Also do a search here on the Diablo and its
many settings. You questions can be better
answered.

Timbo1969

07-17-2006, 06:02 PM

Yeah but you can get technical help on the purchase and ask lots of questions. HP tuners is very good about assisting customers..;-)

TC2000

07-21-2006, 05:17 PM

The Diablo is a piece of cake to reset! If you mess up the settings theres a reset button that will restore all diablos settings to the way it was new. then you just start adjusting all over again its really not that hard . But im happy with the 2 tunes that come programed in it there both a major improvement over stock... and when you disable that torque management quicken the shifts and increase the shift pressure a little bit, your truck really wakes up. Its like day and night :devil:

sonjaab

07-21-2006, 06:59 PM

TC....One of the guys over at Letstalksnow.com got a
Diablo and screwed his settings up so bad his truck barely
ran. I sent him over here for help. I didn't know you
could reset it back to stock with the push of a button !

Hes still stumped.......................

Here is his post. Maybe you could shoot him a e-mail with advise on how to set it up?
http://www.fullsizechevy.com/forums/showthread.php?t=215122&highlight=diablo

Thanks............geo

Rivera13

08-06-2006, 02:09 PM

I Have an 04 Silverado 2500HD with an FIPKII air intake, I recently bought the HPP3 and was wondering if anyone had any rev limiter and shift point settings that they could post for this truck that boosted their perfomance.

69SS

09-17-2006, 06:32 AM

Thermostat = 160
1-2=+4
2-3=+8
3-4=0
Rev Limiter=6000
Max Speed=128
Fuel=93
Firm Shift=Aftermarket Shift kit

Richard

I'm really surprised you don't bang off the rev limiter on that 1-2 setting. I have mine set at that with the max on the rev limiter. ( 6250?) It's been so long, I can't remember The rest of the shift points are set at the max, what ever that number goes up to. +12?

Priest

10-06-2006, 10:57 PM

Anyone have thoughs/experiences with how this effects trans life? Most trans are killed due to heat and or slipage (trashing the clutch packs). My truck is stock and shifts like mush and I see that a lot of you have said that it really helps the shifts....could this possibly help trans life?

turbogunz

10-25-2006, 09:11 PM

any ideas what our stock rwhp is i saw somewhere it was like 236 but was wondering if any one here knew? and stock with the hpp3 only?

irok

11-02-2006, 04:42 PM

Hey was reading through this thred because I dynod my 99 5.3 with a Radix Supercharger, JBA Headers, 3" exhaust, standard Radix Superchips tune, and I got 300HP and 350TQ at the rear wheels. I figured I would get more. I did have an exhaust leak and my Magnaflow mufler is a little cracked. Reading the posts it seems the HP and TQ numbers are a little low.

What do you guys think?

turbogunz

11-03-2006, 02:10 PM

That Does Seem Low Whast Kind Of Dyno

burnthefurnitur

08-05-2007, 07:59 PM

hey i hope you dont mind me asking this, but i ordered a hpp3...and its taken a while to come in because they switched all the part numbers...so actually i'm getting a max energy which has the same tuning program in a new body i've heard...anyway...i'd like to be able to switch easily from towing to performance...(easier than a custom tune) i dont know what people mean by the shift points +1, 2 etc...i'm looking to beef up the shift firmness...correct for tires, get some power out of it if i can, but what is the best thing for me to do those things, not kill milage etc...i'm asking because i'm certain you guys know more than i do about tuning...sorry if i'm stealing this thread haha

airdeano

08-21-2007, 09:39 PM

the +1mph, +2mph is allowing your vehicle to shift +1mph higher
+2mph higher, etc...
and since the shifting command is dictated by mph (not rpm) this
is what changes your WOT (wide open throttle) shift points.
what gear and tire height do you have currently?

airdeano

burnthefurnitur

08-22-2007, 09:17 AM

i currently have 3.23 gears and 265 70 r 17 tires...which measure out to about 31.6 inches....the stock tires were 245 70 17s

flowmasterz

09-25-2007, 05:05 PM

I see all this talk about the 4.8 and the 5.3s but i just bought a 6.0 H.O. that rated at 345/380, HP/TQ from the factory. I just order a HPP3 for it and wondered if anyone on here has used this on there 6.0 H.O. and if u noticed a decent impmrovement. The motor comes in the ss silverado and the newer denalis along with the vortec MAX pickups which is what i have and u have to buy a different tuner for them instead of just usein the the one from the 4.8 5.3 and regular 6.0.