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View Full Version : Shift RPM for drag racing stock cam SR20DET



1mns13
05-14-2003, 01:38 AM
For those who have times less than 14.25, what rpms did you shift at in each gear? What launch technique worked for the lowest 60 foot time? Thanks for your help.

s13SRmadness
05-14-2003, 03:11 AM
shift at redline.
i still can't launch great...

highVd
05-14-2003, 07:13 AM
I'm also interested. by redline do you mean 7500? i'm guessing it might also matter what kind of mods i have so...intake, exhaust (2.5 inch). also, i have some old tein coil-overs. i think my camber in the back is like -2. how much difference do you think this makes for 60 ft?

1mns13
05-14-2003, 09:05 PM
bump

NIS240SHU
05-14-2003, 10:34 PM
I like to short shift it a little bit. I would take a couple of runs if I were you and shift at different points around 6700rpm. This is assuming you have the stock turbo to go along with those stock cams.

As for launching for good 60' times, I have some experience on BFG drag radials (old model), and a mildly modified single cam KA. This is on my friend's car. I'd drive through the water box, burnout for about 10 seconds, then launch at about 5500rpm. This technique got me a 1.89 60' time with a 15.7 ET.

blk90S13
05-15-2003, 12:25 AM
i would like to know as well what is a good shift point 10 psi / fmic/teins / street rires /lsd

Greaser_
05-15-2003, 01:46 AM
if you have stock cams and intake manifold shift at 7,000 or 7,100

its a WASTE of time to go anyhigher. i have dyno charts from so many setups to know this. 6500 is the power peak in a stock setup, even with a big turbo


once you put cams and or a greddy intake.....power peak comes at 7,000. my power peak never comes, just keeps climbing.....i stop reving at 7600. JWT S4 cams and Greddy intake manifold.

g81981
05-15-2003, 02:05 AM
I launch at 4000 rpm. Any lower and it bogs and any higher then it loses traction (this launching technique is for my setup). This is with Falken Azenis and LSD.

1mns13
05-15-2003, 02:12 AM
Thanks, Derek, I will shift accordingly. Gary, do you slip the clutch or dump it? I have stock LSD and worn FM901s 195/60/15.