ONLYA4.8L

15.56@86 bone stock... 14.72@92mph... Intake, ported maf, 80mm throttle body..electric fans.. pulley..Jba shortys..3 inch exhaust.. 3:73 gears. Wait for me tune.. Now 15.08@89 best but run consistant 15.21@89mph with intake.. fans.. pulley.. shortys.. 3 inch exhaust.. and 4:10's.... Need new tune..

therat1989

15.56 with the 4.8. Thats very good.

TRW427SS

My 04 5.3 rcsb ran 14.96 @ 90 stock with 500 miles on it.

therat1989

14.96? wow a stock sun 15..very quick. I wonder what mine would do. Probally the same.

420

my stock 02 4.8 rcsb with 3.42's ran a 16.02 at 88.8 mph (i ran 16.0's consistantly). this was in 85F temps with 90% humidity and really shitty/heavy commercial grade tires. holding 1st & 2nd gear a little longer helped me out quite a bit, the best i could get putting it in drive was a 16.2 because it would shift into 3rd before i trapped. i also think i could have gotten a better launch with a little more practice.

HioSSilver

iTrader: (6)

check my sig

seadoo

my 04 GMC ECSB 2wd ran a 15.50 @ 87
5.3 / 3.73/ stock/ stock

03chevytruck

iTrader: (4)

i ran 15.01 stock(smoking tires throught 1st). 14.7 with e-fans,cheap intake,cheap programmer,and borla exhaust(smoking the tires throught 1st).(have replaced with different programmer and intake).with a few mods since,im waiting on the track 2 open!!!

AustinDesigns

iTrader: (7)

In my 05 rcsb 4.8, I went 16.8, after I took torque management off and raised the rpm's, it went 16.1. Now that is in 4,000 DA, if I would have been at Houston Raceway Park then you can figure about a full second off of that. This weekend I'm not gonna have to worry about the lil 4.8 anymore though! Steppin it up a notch!

Austin

jleews6

iTrader: (1)

My 04 RCLB 5.3 A4 G80 ran 14.67 @92 bone stock. I think it will go 14.4@93 on the " perfect pass".
The only thing I do is put down the tailgate and remove the filter. This spring I will be back at it and looking for that 14.4 pass.

Do I have the fastes stock gas GMC/Chevy??