Power Mods for the 99-02 4.3 V6

[964pt3]

If your accessory alignment is the same, yes it will. If not I would bet on it that Al would look into what changes the bracket would need in order to locate it, then everything sle like programming is the same!

[Vortech Jess]

Originally Posted by DemoN

will this "simple addon" also bolt up to the FSC 4.3?

i would bet that it would bolt right up, and work just as intended. but remember, you get what you pay for. and i don't see this system being expandable. if all you want is a bit more power, fine. but power is addictive, expandability is a key feature.

[964pt3]

Originally Posted by Vortech Jess

i would bet that it would bolt right up, and work just as intended. but remember, you get what you pay for. and i don't see this system being expandable. if all you want is a bit more power, fine. but power is addictive, expandability is a key feature.

It'll make a max boost of 15 PSI on the 4.3.
As far as any other kits offered for the 4.3, the problems remains the same for expandablity, fuel!!
You can mickey mouse a FMU into the ball game which will never get your fuel useage tuned right and thats anybodys risk in going beyond 6PSI, no matter what kit it maybe!
But again we are currently working with some else on a new intake to remedy that problem correctly instead of fudging the fuel addage mickey mouse style!

[Vortech Jess]

i upgraded my vortech kit to put out 14+ psi. and i DID NOT even change ANY pulley ratios, or the blower itself. other than to put a straight discharge on it. and that is though an intercooler !!!

fmu = mickey mouse ? well, kinda. but look at it this way. its a fuel pressure regulator. just like the ones already on there. are there better ways, sure. but they are also much more costly. so, as long as its within its limits, i would hardly say its mickey mouse.

[SCHRGDS10]

Originally Posted by Vortech Jess

fmu = mickey mouse ? well, kinda. but look at it this way. its a fuel pressure regulator. just like the ones already on there. are there better ways, sure. but they are also much more costly. so, as long as its within its limits, i would hardly say its mickey mouse.

With the "upgraded" ('01+) spider assembly it ends up being mickey mouse. 19lb injectors + fmu / 300hp = 100+ psi fuel pressure or

[c.nash]

Whats the HP and 1/4 on this truck?
I'm still looking into either a v8 or v6... I want to know which is better around the strip and as a daily driver.

[SCHRGDS10]

Originally Posted by xile

Whats the HP and 1/4 on this truck?
I'm still looking into either a v8 or v6... I want to know which is better around the strip and as a daily driver.

V8 would be better. Just alot harder to "bolt on".

I havent been back to the 1/4 only the 1/8. 8.7 in the 1/8 should be good for mid 13's. MPH is pretty weak due to torque management which I have finally rid of using the TunerCat software. Truck is making somewhere between 270-290rwhp.

[tthompson442]

Originally Posted by GIBBY41

second i have v6 manual and in second gear im having a lull in the powerband about 2k rpms anyone have any suggestions

Have you gotten any answer to this? I get the same thing with my 5 sp but between about 3000 to about 3600 rpm. I"ve changed ignition parts, upgraded to K&N air filter, changed the fuel filter and Seafoamed the intake. One response I had was to check the gap of the plugs and to try setting them to .046" - .048". I haven't had a chance to try this yet. I'll let you know if it helps.

[Philly_B]

how much do you all think electric fans will give me?

[Bowtie 666]

New guy here, just wanted to comment on the great info.

[Crank1]

http://www.truckperformance.com/prod...K+1500+PICKUP/
So this is the shifter that will work for our trucks? Well my truck...'98 Cheyenne 4.3/5 speed????????????? Help.
Brandon

[knightriderjoe]

summit racing carries a lot of parts for the 4.3l. its easy to find, search by model and you can narrow down the search to the engine size. they carries chip sets, cold air intakes, throttle body spacers, mass air flow senors, cams, headers, and a lot more.
also www.sportruckspecialties.com carries bored out throttle bodies and a pulley set for the truck.

[octrah]

Originally Posted by DemoN

This is a list i have started to create of the mods the we can do to our trucks. please feel free to add to this list or comment on the parts. The prices posted are not the cheapest i found, by no means, just a bais to go by.

airraid intake http://www.performanceproducts.com $283
helix power tower http://www.performanceproducts.com $103
jet shift command http://www.performanceproducts.com $150
jet 2000 speed control unit http://www.performanceproducts.com $160
jet power module Stage 1 (stock) http://www.performanceproducts.com 300
jet power module Stage 2 (exhaust/headers) http://www.performanceproducts.com $287
JBA Header 99-02 http://www.stillen.com $371
hypertech ht30008 programer http://www.stillen.com $327
poweraid TB Spacer http://www.truckperformance.com $101
Taylor Full metal jacket ignition wire set http://www.truckperformance.com $100
Perma-cool Cool pack 2, 14" Electric Fan Unit http://www.truckperformance.com $580
Super Chips Inc, GM Max Micro Tuner http://www.truckperformance.com $379
MSD 6A ignition http://www.nipponpower.com 200
Trans-Go Shift Kit 4L60e http://www.tbyrnemotorsports.com 110
B&M Shift Improver Kit http://www.truckperformance.com $35
B&M Transpak http://www.truckperformance.com $69
Jet Electronic Shift Improvement Kit http://www.truckperformance.com $121
Centerforce Steel Performance Flywheel http://www.truckperformance.com $237
Jet 4L60E Billet Powr-Servo http://www.truckperformance.com $84
Jet 4L60E 4th Gear Servo http://www.truckperformance.com $76
Volant Premium Cool Air System http://www.truckperformance.com $277
MARCH PERFORMANCE Power & Amp Series Serpentine Pulley System - 2 Piece Steel www.truckperformance.com $100

4.10 Ring and pinion from www.reiderracing.com $155.95
Really brings the truck alive.

[viper79135]

what would be ur first mod second ....and y

[cheyenne264]

do they make all the same power mods for the earlier 4.3's like around 96 or so?

[Fulloutpwr]

Gibson also has a header for the NBS 4.3 2wd ready for production in under 6 weeks; ceramic is an option like usual. (this is straight from gibson sales rep mouth FYI)

[jaredcc86]

on my 95 4.3 FSC..i lowered it...did a bunch of interior modifications...as far as performance, besides an intake, what would be the first of those mods you would do?? to me it seems as though i need to re gear it before anything

[97sierra454]

Originally Posted by C15.1

comp cams makes aluminum roller rockers for the 4.3, they are especially narrow for the center bolt styled head

Crane does too, the only thing that sucked was to use their rockers, you had to buy all new studs to get rid of the stock rocker system where you bolt them down till the bolts are tight, you have to buy traditional studs so you can adjust their rockers. All in all it cost me close to $400. It did buy me some higher rpm breathing and a little better top end.

I also have had good luck using the MSD coils on these motors to make up for the lack of coil over plug like the 2nd gen vortec motors.

[AcroDime]

I'm like the others, would it be wise to start with an AirRaid intake, then get the MAF sensor, or which products would you invest in first? I've been trying to sell my truck and a big downfall is the 4.3, so I figure I'll hop up the 6 and show them that it can be stout. Any suggestions on what to dig into first?
Chris
AcrophobiA Texas

[brandonclark]

do not mess with the MAF sensor. there is very little to no gain from their. the cold air intake is a great idea. from there a tune and let your imagination run wild.