99gt302

Well tonight I was out and about in my 99 GT NPI, most of you prob. know the story on it now, hell I may need to change my name to NPI99GT302, anyways I think I found what part of my problem was at the drag strip last week. I was running 9.6s consistant with 2.0 60's and a little spin. Well I was first shifting at around 5800, then tried about 5500 on the rest of the runs. Well tonight my car felt a lot quicker when shifint at 45-4800! I have a 4:10 rear end. Even when shifting at 45-48 it spun longer in 2nd and 3rd, which means its landing in the powerband I guess. So I wonder if trying this at the track will knock off a few 10ths? What do most of yall shift your stangs with 4:10s at?

Jbauer

Redline damnit.
Forget the damn power band of the 281 and the gears. Shift at redline and see what happens.
You'll land back in your power band

Andy13186

i been shifting 5700-6000ish but i have stock gears, not sure whats best...

WhiteFoxGT

Ok buddy

Anyway, Sometimes short shifting is the answer. Our cars make peak power around 5600rpms, so if your geared right and short shift instead of over rev you might pick up some speed. Dont take it to the limiter in each gear, you're just wasting time and gas..

99gt302

I tried red linning and its crap, I can feel the power dropping off. I gained a few 10ths once I started shifitng in the mid 5000 range. It feels like it drops of even before 56?

dsbsurfn

I get my bet time shifting at 5200. My G-tech shows a peak HP at 4850. The 5200 shift maximizes the area under the HP curve in my car. Stock gears.

Fleet99GT

I have a 99 gt with 4.10's and i feel like 2nd hits the hardest when i shift @ about 4800 as well. It takes off like a bat out of hell. Other than that i redline the rest. So i would try that at the track, cant hurt anything.

99gt302

your 99gt aint npi though lol, Imma get to there early this week weather permitting and try 5000 in each gear, then 4800 like you said and redline the rest. open to any more suggestions!

cisurfer

yea i also noticed i shifted at 5500 instead of 6 like i normally do and i couldnt get past 99 mph for all i tried and when i changed it to 5500 i broke into the 100s

Jbauer

2000 GT
K&N Short ram
Accufab plenum w/ accufab 75mm TB
MAC prochamber
Mac catback

Shifting at at redline= 13.9 on a pretty much bone stock car.