1/4 Mile Predictions
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
1/4 Mile Predictions
I know that there are several variables that have to be considered before being able to make an accurate prediction. Based on the mods in my sig, what kind of guesstimates do you guys have? A buddy of mine and I are thinking 14.2 or 14.3 and possibly a 13.9x with a little more practice. Thanks in advance for the predictions (guestimates).
John
John
Thread Starter
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Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Since i can't figure out how to get my sig to show up, here is the info.
Auto Tranny (700-R4), stock converter
350cid TPI (L98)
Hedman Longtube Headers
Cat delete
Dual 2 1/2" pipe to Bullet Race Mufflers
March Performance Underdrive Pullies (Alt. & Crank)
TPiS Throttle Body Airfoil
A.I.R. System Delete
Stock Aluminum Driveshaft
3.23 rearend w/ limited slip
Manual Fan Switch
Tires are currently Riken Raptors...soon to be replaced by Kumho Ecsta Supra 712's
Rebuilt front suspension w/ KYB GR-2 Struts and KYB Gas Adjust Rear Shocks...all polyurethane bushings
If you need anything else just ask and i will see if i can answer it.
Auto Tranny (700-R4), stock converter
350cid TPI (L98)
Hedman Longtube Headers
Cat delete
Dual 2 1/2" pipe to Bullet Race Mufflers
March Performance Underdrive Pullies (Alt. & Crank)
TPiS Throttle Body Airfoil
A.I.R. System Delete
Stock Aluminum Driveshaft
3.23 rearend w/ limited slip
Manual Fan Switch
Tires are currently Riken Raptors...soon to be replaced by Kumho Ecsta Supra 712's
Rebuilt front suspension w/ KYB GR-2 Struts and KYB Gas Adjust Rear Shocks...all polyurethane bushings
If you need anything else just ask and i will see if i can answer it.
Last edited by White91GTA; Apr 5, 2004 at 10:38 PM.
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
thanks...that is exactly what i am thinking. hopefully by the end of the season i will break into the 13's if not immediately.
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
i'm going to say 14.7-14.8. your car still seems pretty stock.(except exaust,pullies). I know stock times on 5.7 GTA's are mid-low 15's. Bring it to the track and you can tell us what times you turned....Good Luck
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by TPI-Formula350-
i'm going to say 14.7-14.8. your car still seems pretty stock.(except exaust,pullies). I know stock times on 5.7 GTA's are mid-low 15's. Bring it to the track and you can tell us what times you turned....Good Luck
i'm going to say 14.7-14.8. your car still seems pretty stock.(except exaust,pullies). I know stock times on 5.7 GTA's are mid-low 15's. Bring it to the track and you can tell us what times you turned....Good Luck
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Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Originally posted by White91GTA
stock times on 5.7 GTA's are high 14's...i think like 14.8 and the TTA stock is only .5 faster.
stock times on 5.7 GTA's are high 14's...i think like 14.8 and the TTA stock is only .5 faster.
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by TPI-Formula350-
You might want to double check those 1/4 mile time..... L98 GTA's run mid/low 15's stock... 89 TTA run mid/low 13's stock
You might want to double check those 1/4 mile time..... L98 GTA's run mid/low 15's stock... 89 TTA run mid/low 13's stock
Junior Member
Joined: Mar 2004
Posts: 13
Likes: 0
From: Toronto
Car: 1991 Trans Am GTA
Engine: L98
Transmission: 700-R4 (what else)
Mid 15s sound really slow. I don't see why an L98 GTA would not be able to break into the very high 14s stock. Most of the magazine times I have seen are in the high 14s.
Please post your times when you get them. I have the same car as you, and am very interested.
Please post your times when you get them. I have the same car as you, and am very interested.
Last edited by Bryan_GTA; Apr 10, 2004 at 04:29 PM.
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by Bryan_GTA
Mid 15s sound really slow. I don't see why an L98 GTA would not be able to break into the very high 14s stock. Most of the magazine times I have seen are in the high 14s.
Please post your times when you get them. I have the same car as you, and am very interested.
Mid 15s sound really slow. I don't see why an L98 GTA would not be able to break into the very high 14s stock. Most of the magazine times I have seen are in the high 14s.
Please post your times when you get them. I have the same car as you, and am very interested.
Thread Starter
Senior Member
Joined: Dec 2003
Posts: 647
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From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by ChevyCamaro420
it basically is though. like he said, exhaust and pulley's are done, thats it though.
it basically is though. like he said, exhaust and pulley's are done, thats it though.
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