30th t/a

iTrader: (51)

went to pittsburgh raceway. 1st time for with H/C. it was bad. check it out.
1st run temp was 77, humidity was 44
2.247 60'
1/8 8.511@88.60
1/4 12.85@113

2nd run temp was 81, humidity was 36
1.95 60'
1/8 8.22@77.16 i hit the rev limiter in 1st and 2nd and smacked the brakes and the clutch at the same time trying to hit 3rd so i just coasted through at a 14.4@69

3rd run temp was 84, humidity was 32
1.98 60'
1/8 8.17@88.3
1/4 12.53@112.7 accidently had the A/C on low on this run.

i know i need a shiftlight PRONTO but is that gonna give me the 6-8mph that im missing....i dont think so.

i dyno'd 428rwhp at rapid and that was with the magnaflow. i have a true 3" x pipe setup now. weight is around 3620. stock wheels with 16" MT et streets on rear.

the heads have 987's and some people think i should install some better duals. i also ran this through the full ehaust under the axles.

a guy next to me had a '00 SS running 12.4@112 with jethot's, slp dual/dual, ls6 intake, QTP lid, slp ramair, and 4:10s w/ drag radials....HES BEATING MY H/C CAR!! WTF??

what should i be running/trapping with this setup. i have 3:42's in the rear.

Redlinez

iTrader: (5)

Ok. Sounds like you need a lot more time on the track learning the feel of 6600 or so rpms. I would think your 60's need to be in the 1.75 -1.80 range to find out the real deal. I wasn't thrilled with my dyno # of 348 ( I have cam, borla, ls1 edit, 4.10's, street tires, lid, shifter) but I ran 12.50's @ 114+. I shift at 6600. Getting my Jethot's on next weekend. Ls6 intake is next. Sounds like you just need to make a buttload of runs and you'll get there. Good luck. Probably a lot of nerves involved trying to run the numbers.

Fred99LS1

I would say traction & shift points are the two major things you need to nail down next. It was hot, but you still should of been atleast 117, imo. I'd ask what the D/A was but cars with less mods were running atleast as good, Fred

02SOMWS6

iTrader: (6)

It's not the car.It's you.I dynoed at 426RWHP and 406RWTQ and have a factory firehawk cat back on my car.so that's one of the lesser of performance peices out there. My car weighs in at 3524-3724 with me in it.Here is a video of what your car should be running. Is your rear stock? Still have 3.42's .If you have the stock rear kiss that goodbuy if you want to run the power your car makes. ftp://68.194.14.214/files/racing_vid...2TransAmWS6LS1

soundengineer

iTrader: (16)

sounds like a traction issue to me....
I hit 12.7@114 on street tires...
and I hit 11.7 @123 with slicks....

of course this was here in the midwest...

02SOMWS6

iTrader: (6)

Whats tire psi. at ? When you do your burn out do a short spin in the water then pull foward out of the water and do a 2nd gear burn out till you see smoke.Drop your tire psi. down to 13.But if you still have the stock rear forget everything I just said and start saving for a rear.If you have the stock rear , I just told you how to break it.

SMOKIN01TA

iTrader: (10)

i have around 420-430 and on my first run i fried the clutch, pulled a 1.9 60ft and ran 11.90 at 118. so i would say traction is killing you bad,and i shift really fast. im guessing you need to practice that to.
good luck,
Rodney

Street Racer

iTrader: (65)

you need to run alot me gear with that cam imo get a 12 bolt and put atleast a 4.30 in it or even a 4.56

SMOKIN01TA

iTrader: (10)

that is what i was thinking also. mine loved the gears.

30th t/a

iTrader: (51)

i dont think traction was the issue. i left the line around 2500 and it hooked up with the mt et streets set at 15 psi. i didnt want to leave any harder because of the stock rear. but i know of 5 or so guys that ran a H/C setup with a stock rear w/ 3:42s and their running bottom 12's or high 11's @119-123.

i know im not going to get a good et with the rear and gears but i thought i should be seeing 119-123mph.

what should i expect with my setup, with a shiftlight and the wheather i ran it in today?

jezzzz...a guy from this site with bolt ons and a tr230 w/ stock heads trapped 115 with a stock rear & 3:42's pulling a 1.85 60' and his buddy {tileman) trapped 117 with boltons and a tr224 cam with 4:10's in a stock rear pulling 1.8's also.

thanks for the help guys.

Street Racer

iTrader: (65)

Remember not even ones car runs near the same even if they have the same set up with that cam I come out no lighter then 5200 ! Coming out @ 2500 is a little low imo stock rear or not get AAA and let it rip coming out @ 4k I came out on my stock rear for 2 years @4k and never ran into a problem but I have seen alot break I was just lucky . Start taking weight out remember ever 100lbs will get you almost 1mph and you can loose about 300 easy. The heavier the car the more gear you will need to get her rolling. most of the Z's I have seen weigh near 3350 thats 200 lbs lighter which means 2 mph off the get go . My old set up with the little T1 made 418.9 RWHP 405.7 RWTQ which is near your power but weighed in at 3200 with me in it stripped and would trap mid high 122's low 123's I was running a 4.30 gear with it but now it has a cage and full weight so she weighs 3510 with me in it... So I bet between gearing the car, LOOSING weight and coming out near 5500-6k and getting atleast a mid 1.6 60' you will see your 118 traps. good luck with it...

30th t/a

iTrader: (51)

anyone else have any ideas?

Coach 02 A3 Z/28

iTrader: (10)

Practice man.

You need to drop the hammer on that thing. Leave at 5,000 rpms and you will have your mph.

Coach

02SOMWS6

iTrader: (6)

start saving for a rear if you really want to race at the track.If your just playing on the street leave it alone.But if you want a fast track car you need to get a rear.You can't skimp on this and think your going to run good timesftp://68.194.14.214/files/racing_vids/11.52002TransAmWS6LS1

2002SilverWS-6

iTrader: (4)

Hey man what's up. First thing to do is get yourself a shiftlight because hitting the rev limiter is killing you. Definately get your 60' down. I'm Tileman's buddy and the best 60' that i got was a 1.82 with the stock 3.42's. I went to the track today at PRP with my newly installed 4.10's and finally broke into the 11's. It was alot warmer today also. You should be trapping 120+ with your set up in good weather. Good luck and get some more track time under your belt.
Here's my best run so you can compare. TR230/224, 4.10's, stock heads
60' 1.738
330 4.985
1/8 7.677
MPH 92.15
1000 9.997
1/4 11.940
MPH 116.27
Also you might want to try shifting at 6800 too. Let me know if you need any help later down the road.

foff667

iTrader: (2)

i know im a little late but you got in 3 runs not one of which was a clean run so theres really no comparing any #'s one you had the a/c on, one you cut a 2.2 60 spinning or bogging im not sure and the other one you hit the limiter & brakes...go to the track again and like fred is youll be running 120+ mph with decent weather...it was also hot out. Im not sure where that cam makes its power but launching at 2500 is not ideal even for the stock powerband...otherwise your counting on gearing to pull you through your powerband...get the cam where it needs to be and it will be nice back

68maro

here's a video of a buddy of mines h/c car it ran 11.70's-80's SI with bolt ons it's still on the stock rear with 3:42 and a broken torque arm so he's babying it out of the hole and stock bottom end. watch and enjoy i think you just need to learn the car and practice.
http://ls1sounds.com/track/mdd_SS_10.60.wmv

WILWAXU

iTrader: (6)

Umm.. why are you showing him a video of a car running N20?

Guess I'm missing the connection...

68maro

it's on the strength of the rear you can run 10's on a sock rear and still pull 1.50 60's and that car also runs 11.1's n/a

9secbird

iTrader: (9)

Just a fyi, i made 415 rwhp with a cam and bolt ons and went 11.87 @ 118.9 with a 1.79 60' and a stock 10 bolt with a six speed, I think the 3.42 are kiling you, but more than that i think its your driving skills. You really need to practice on power shifting