Best 1/8mi Times
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Joined: Mar 2002
Posts: 2,516
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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
Joined: Mar 2004
Posts: 1,643
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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!
That was with the vac line falling off meaning that I only had nitrous in 1st gear, not 2nd!
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Joined: May 2005
Posts: 378
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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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Joined: May 2005
Posts: 378
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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.
Joined: Sep 2003
Posts: 25,895
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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
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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Joined: May 2005
Posts: 378
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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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Joined: May 2005
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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.
Mine is 8.065 seconds and 85.64 mph in the 1/8 mile. TPI car.
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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
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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Joined: Sep 2003
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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.
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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Joined: May 2005
Posts: 378
Likes: 0
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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