14.3 @ 93.7

[Church]

60' - 2.0
1/8 - 9.1
1/4 14.3 @ 93.7mph

Better than i thought i would do with what i have. I think i could get better.
One question, I get fifteen pounds of boost until about 5000 rpms, then it drops to like 11. If i got a mbc would this make it hold boost to redline or is it the turbo?

 

[DCJ98GST]

Your boost dropping off is normal with the T-25. It runs out of flow at about 4500 - 5000 rpm, because your motor is out flowing your turbo. There is not anything you can do about this except upgrade the turbo.

Before I got my 2 1/2" downpipe and high-flow cat I boosted 15 psi to 5000 rpm. Now that I upgraded my exhaust I can only boost 15 psi to 4700 rpm, because my motor flows more air and my turbo can only keep up with it to about 4700 rpm.

 

[GalantVR41062]

t-25 and keeping up should not be in the same county, the 4g63 in stock motor trim will flow about 55-60lbs/min of air at 7,000 RPM. (not RPM'S its not rotations per mins) and the T-25 flows like 2-3lbs/min. but the "turbo" should be removed from said DSM and placed on your chain saw and buy a turbo that flows atleast 50lbs/min.

~John
dam mutt 1 restrition.

 

[DsmAwdTsiTurbo]

try to get a lower 60ft...
and try to shift around 6500rpms

you should be able to get mid to high 14's

 

[babyJ]

I had a similar time in my 99' gst I have greddy uip and
that was it. I took it to the track like that with the filter off
and the car went 14.3 @ 99.6 with a 2.3 short time. The car
is a freak I dont know why it runs so good but i'm not
complaning. These cars have minds of their own...

 

[Church]

I was at the track again friday trying to improve a little and had the same results. Before friday my best 60' was 2.0, i got two runs with 1.95 60' times. I'm pretty sure thats gonna be the best 60 i can get out of it. Is there something wrong, even with the small amount of mods i have should i be getting better 60's. I can't see me hitting a low 1.8 or anything right now. I just dont think its possible.

Maybe im wrong. Let me know

 

[babyJ]

there is nothing wrong fwd are pretty hard to get off
the line on street tires. You have to dial your car in
every car is different. You are getting pretty good short
times, the way you stand. I would be happy with a 1.9 60'
I think if I could get that I would maybe get a high 13 sec
pass out of her. I wouldn't be dissapointed in what your car
is running I know a few people that have twice as many mods
that I have and run slower than I do. Just keep driving it you'll
eventually get what you want, you know your car better than
anyonw else does. Practice makes perfect...