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Best 1/8mi Times

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Old Jul 28, 2005 | 06:24 AM
  #1  
VincentZ28's Avatar
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From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Best 1/8mi Times

What are your best times? Mine is 8.062 @ 90.23
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Old Jul 28, 2005 | 11:35 PM
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
8.66@77. Best 60ft is 1.896.
That was with the vac line falling off meaning that I only had nitrous in 1st gear, not 2nd!
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Old Jul 29, 2005 | 05:27 PM
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From: columbus, in.
Car: 1989 pontiac firebird trans am gta
Engine: 355
Transmission: 700r4
Axle/Gears: 327:1 9 bolt
I ran a 9.32 at 72.36 mph. My car is pretty stock 89 GTA. All I have is an airfoil, AC delete, AFPR set at 48 psi, no cats, flowmaster cat back, 2.77 gears. I still have the stock manifolds. I just put a 2500 stall and I am getting ready to put hooker super comp shorties on it. I am hoping to break into the 8's with this setup. I am currently building a new motor that I am hoping to put me in the 12's in the 1/4.
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Old Jul 29, 2005 | 07:36 PM
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Car: 1987 IROC-Z Camaro
Engine: 5.7 350 TPI - SLP Runners, AFPR, MSD Goodies
Transmission: 700R4 - Shift Kit, Corvette Servo
Axle/Gears: BW 9 bolt, 3.27s
.

9.26 @ 73.2 mph with bolt on L98..stock exhaust
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Old Jul 29, 2005 | 08:22 PM
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From: columbus, in.
Car: 1989 pontiac firebird trans am gta
Engine: 355
Transmission: 700r4
Axle/Gears: 327:1 9 bolt
Stock manifolds, I have a high flow y-pipe where my cats used to be and 3" flowmaster catback. But yes, 9.32 with some minor bolt ons. I was impressed.
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Old Jul 29, 2005 | 09:31 PM
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
i used to run stock locatation LCA's and 2.77 gears on stock L98 with exhaust work. ran 8.808 at 77.xx mph on a 1.895 60'


now with LCA relocation bracket, 3.27's and no other changes, i have only been able to do a 8.87 at 76.xx mph and 1.88 60 foot so i dont know why i am so slow now
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Old Jul 29, 2005 | 09:35 PM
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From: columbus, in.
Car: 1989 pontiac firebird trans am gta
Engine: 355
Transmission: 700r4
Axle/Gears: 327:1 9 bolt
I think it may be that you are going thrue the rpm's to fast and not letting the car pull as hard. You may be staying in the higher rpms to long also. But that is just my opinion. I could be on the other side of the moon with this one.
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Old Jul 29, 2005 | 09:38 PM
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Mine is 8.065 seconds and 85.64 mph in the 1/8 mile. TPI car.
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Old Jul 30, 2005 | 05:58 PM
  #9  
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From: columbus, in.
Car: 1989 pontiac firebird trans am gta
Engine: 355
Transmission: 700r4
Axle/Gears: 327:1 9 bolt
Originally posted by 1989GTATransAm
Mine is 8.065 seconds and 85.64 mph in the 1/8 mile. TPI car.
What setup do you have. Are you still running TPI or is it carbed. Those are some pretty good times.
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Old Jul 30, 2005 | 06:05 PM
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Car: 1987 IROC-Z Camaro
Engine: 5.7 350 TPI - SLP Runners, AFPR, MSD Goodies
Transmission: 700R4 - Shift Kit, Corvette Servo
Axle/Gears: BW 9 bolt, 3.27s
Originally posted by Orr89RocZ
i used to run stock locatation LCA's and 2.77 gears on stock L98 with exhaust work. ran 8.808 at 77.xx mph on a 1.895 60'


now with LCA relocation bracket, 3.27's and no other changes, i have only been able to do a 8.87 at 76.xx mph and 1.88 60 foot so i dont know why i am so slow now
Slap some DR or slicks on it and see what those bigger gears will do.
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Old Jul 30, 2005 | 09:59 PM
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
To 355GTA

I'm still running the TPI although it has been upgraded. Edelbrock manifold, modified SLP runners and modified factory plenum. I feel the TPI helps me on the launch and getting the good 1/8 mile times. The Yank SS3600 torque converter also plays a big role.
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Old Jul 30, 2005 | 10:46 PM
  #12  
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From: columbus, in.
Car: 1989 pontiac firebird trans am gta
Engine: 355
Transmission: 700r4
Axle/Gears: 327:1 9 bolt
Thanks. I was planning on running basically what you have except the base. I want a scoggin-dickey vortec base with vortec head. If not that then a mini ram if I can save enough money.

Last edited by 355gta; Jul 30, 2005 at 11:35 PM.
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