post your 1/4 mile times

[71_bigblocknova]

ran a 16.98 @ 86 mph. 07 (new body style), extended cab, z71
2wd, 4.8, auto, 3.23 gears. I asked GM if i could get 3.42 gears swapped in and still be covered under warrenty, but they wont answer.

[djracer]

so far my best 1/4 was a 9.39 with only 6 seconds of spray! I am use to 1/8 mile so I forgot to put more time in the timer. I wanted to try to get in the 8's before the end of the year but I haven't been able to race much lately!

[Savage Sierra]

Here is a link to several of my 1/4 mile runs, actual time slip scans. This was when I had just started on my 95 Sierra and it still had the LO5/350 and very few mods. I don't have any time slips with the 383 yet but will this spring.

The time slips are about 10 post down from the top, just ignore the other junk. Its just easier to link to it then add a new thread with all the photos scans.

Follow this link to time slips: http://www.fullsizechevy.com/forums/...eal-cheap.html

[PPV tahoe]

I ran a 15.86 @87mph bone stock.

[Savage Sierra]

Originally Posted by PPV tahoe

I ran a 15.86 @87mph bone stock.

Everything got faster after 1995! The Vortec's and all the LS engines, etc. Plus the police package probably had a hot tune, dual exhaust, bigger injectors, etc. Your times don't surprise me.

[Chevrolet1723]

15.8 @ 85.9

[Savage Sierra]

Here is a video of a part throttle 0-100 mph run with a 30 mph roll out for traction. Note the rpm and you'll see its only part throttle. Now this is a 5000 lb. extended cab with a TBI (fancy electric carb). This spring I'll post some full throttle 100 mph blast. Pretty darn quick for a TBI, huh?

http://s199.photobucket.com/albums/a...-100mphrun.flv

[highflyin]

My old 88 RCLB C1500 ran 16.100 at 84.12 with a 2.326 60'.It had a rebuilt 350,700R4 with shift kit,Flowmaster super 40 muffler, and 3:73 gears with open differential.Spun off the line and part of second.I shifted at 5000rpms.

[Pauly]

Originally Posted by Savage Sierra

Everything got faster after 1995! The Vortec's and all the LS engines, etc. Plus the police package probably had a hot tune, dual exhaust, bigger injectors, etc. Your times don't surprise me.

The Police PAckage Tahoes have thesame spark and fueling as the other L31's do, as wella s the same stock L31 19 pph poppet injection, and only has duel exhaust to teh muffler just like any other L31 Vortec 350.

Those times surprise me, as they are the same as my rcsb L31 truck with 3.08 gears. My truck is a fully loaded C1500 truck, the Police PAckage Tahoes wer not for the most part although they do have a variety of interior options. They have the 13" brakes, big alternator and 130 mph cluster, and came with H rated tires, no speed limiter.

I assume this Police PAckage Tahoe is a 2wd model?? Therefore also has the. 3.08.

peace
Pauly

[djracer]

all two wheel drives don't have 3.08's do they? I know I swapped a 90 model truck from 3.08 to 3.42 and it made a world of difference.

[PPV tahoe]

The Police PAckage Tahoes have thesame spark and fueling as the other L31's do, as wella s the same stock L31 19 pph poppet injection, and only has duel exhaust to teh muffler just like any other L31 Vortec 350.

Those times surprise me, as they are the same as my rcsb L31 truck with 3.08 gears. My truck is a fully loaded C1500 truck, the Police PAckage Tahoes wer not for the most part although they do have a variety of interior options. They have the 13" brakes, big alternator and 130 mph cluster, and came with H rated tires, no speed limiter.

I assume this Police PAckage Tahoe is a 2wd model?? Therefore also has the. 3.08.

peace
Pauly

Yea, Its all stock and you are correct, no fancy tune or exhaust and it's 2wd. It does have some differences in the program. It will lock the converter in 2nd at WOT and will lock the converter in 3rd and 4th no matter what the engine temp is and as quickly as 30mph. All in all it gets decent mileage (17ish) to and from work and keeps me from getting a ticket because it looks like the PO.

[XBoT]

Im thinking of getting a '08 sierra rcsb 5.3l, 3.42.. has anyone ever done a run in the NNBS trucks, or does anyone have any idea what they would run?

[85frdfandc]

I've been 15.42 at 89 mph. Cat back exhaust, K&N panel filter. Weight at 5260 (with me in it)

[dalejrfan8]

What kinda truck do you have 85frdfandc?

[gmc406]

These numbers are all useless without track elevation and conditions(although a few did have them posted). You guys with forced induction and NOS are affected less than the N/A guys. Here's a calculator for N/A, NOS, and forced induction. This helps if people want to know their approx. predicted times, if they ran at sea level.


http://www.wallaceracing.com/altitudecorrection.htm

[Crazed179]

Stock 2001 ext cab sb ran 16.4 without tow/haul on.. btw its a 4.8 2wd

[Hammerdown]

I ran a 16.07@85.32 with my 02 z71 ecsb gmc 5.3, 1/8th 10.49@67.51, 60ft was 2.46. Tow/haul on and my 235 pounds, with 200 pound toolbox in bed. It was 50 degrees with a 25mph headwind.

[BlancoSilverado]

1990 Siverado LB 69k miles, 350 TBI , 7004R , 3.42 non posi, 195/70/15 rears, 235/75/15 fronts, flipped air cleaner lid, 1/2 full fuel, 65 degrees air temp = 16.90 best et today at Speedworld in AZ. ( my racecar is broke) Doug in AZ

[mmiller]

02 gmc sierra 5.3 throttle body spacer 22s bagged flowmaster 40 series dumped k/n 15.4 at 88mph

[GENIII 5.3]

2000 Single Cab LS Silverado 5.3 with 118,000 miles 1/8 9.859@82.56
1/4 15.026@91.23

QTEC cutouts and only drop in K&N at the moment