adcook

I have a 98 Trans AM stock ls1 with 100 shot th400 4000 stall leaving2-step at 3600. Just cant get 60' lower than 1.7 any ideas bout shocks? Still stock shocks and lower control arms right now. Just need help deciding where to start.

alexus6798

iTrader: (24)

What tires?

adcook

Right now 26x10.5-16 mickey et streets. They dont spin off line with 13lbs and front tires lift bout 2 inches. Maybe I just need more motor... lol

stherngent

iTrader: (7)

Are you spraying off the line? I have a 2000 camaro with 275/60 15s m/t at 30psi. I have lca with loca relocation brackets, lca set at the lowest lowest setting on the brackets. I have 75 shot and spray at 4000 rpm that way it's easier on my 10bolt. My 60ft is 1.56-1.57, it could be in your stall if you aren't spinning off the line. I have taken my stall out 3 times within a 2 month period just to get the str where I liked it.

alexus6798

iTrader: (24)

Is that 60' with the nitrous? you might need to work on suspension. My friend was pulling 1.7's with the new yank PAS 3400, tunnel mounted torque arm, UMI panhard rod and lower control arms non adjustable on stock 10 bolt with 3.42 gears full weight. He's also on 255/50/16 hossier drag radials.

abritton77

I would start with lower control arm brackets if you dont have them already. Probably the best bang for the buck.

adcook

I do have a umi tunnel mount torque arm. My rearend is a 10 bolt but superior axles motive gear and auburn posi. Only had it out twice with new transmission. Really just gettin use to the trans brake and 2-step. I do shoot it off the line. Just tryin to get brave enough to bring up my launch rpm without breaking the rearend.

stherngent

iTrader: (7)

X2 on relocating brackets

Ed Wright

iTrader: (1)

Might try leaving a little lower. Leaving @3600 with a 4000 converter is killing some torque multiplication. Give 2400 to 2800 a shot. Surprising how many think stalling them as high as they can hold them would be faster. Never is. A little better understanding of how converters work helps.
Give it a try.

If it's not spinning the tires at all, no brackets are going to help it.

Mystery Bird

iTrader: (7)

I agree with ED, I've always seen best 60ft times launching at lower RPM's.

Dynospeed

iTrader: (3)

Yep launch lower, you will flash the converter a little higher by getting a run at it. Also what does it 60' on motor?

adcook

Thanks Ed! I'm going to try it again this weekend. I haven't tried it on motor since I got new transmission and torque arm in.

Ed Wright

iTrader: (1)

Might even try as low as 2000.

Good luck!

Mystery Bird

iTrader: (7)

FWIW that's about where I launch my 4000 RPM TC. I'm getting low 1.5's 60ft with 3.90 gears and a 4l80e trans.

Ed Wright

iTrader: (1)

When I had my foot braked 383" with a 4400 Vig, I left at 2000. It went 1.30 to 1.32 on the rear tires all the time. My 350" Trans brake deal now has a 6200 ATI converter. I leave at 3000 most of the time. Pretty steady between 1.27 to 1.29 in 60'.

Mystery Bird

iTrader: (7)

Ed, do you have a videos of your runs? I would love to see them.

Ed Wright

iTrader: (1)

I don't know how to put them up here. Somebody told me there was one on utube. I would not know how to find it. I'm old.

Mystery Bird

iTrader: (7)

Haha, I'm old too but have been in IT for years so that helps.

Ed Wright

iTrader: (1)

If you want to email me, I can attach one to a reply.

Blackpanther99

iTrader: (8)

Ed sure does know his drag racing, learned alot from his post.