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'89 G92 305 5spd VS 94 Z28 auto??

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Old Jun 19, 2001 | 12:11 AM
  #1  
Reed's Avatar
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From: Clifton,KS,USA
'89 G92 305 5spd VS 94 Z28 auto??

welp just wondering if I have a chance with my best friends car. He just bought a 94 Z with 50K. It has the LT1 w/ Auto and not sure what gear but it runs like 1500rpm at 60mph. The Z is all stock except for a Borla exhaust. He let me drive it and it was fast but not overly fast as I expected it to be. I think my Iroc with the mods I have (see sig),I might be able to hang with him. I know my car feels stronger at the start but I'm afraid it will die out at the end. Any remarks?


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1989 Iroc-Z. 305TPI 5spd, G92 (230hp/300ft/lbs). 91-92Z28 groundeffects. Corvette Admiral Blue Metallic paint. Thermomaster chip, 160*stat & fan switch, Bosch +4 plugs, MAF screens removed, custom ram air, Flowmaster cat back, K&N, adj. fuel pres. reg.
72,000 miles. SWEET!!
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Old Jun 19, 2001 | 12:48 AM
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From: Medford, Oregon
Car: 1989 Iroc Z L98
honestly, i think he has you beat, but i might be wrong.
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Old Jun 19, 2001 | 03:56 PM
  #3  
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I raced a 99 T/A with a Flowmaster catback and through first gear I took him by 2 car lengths (he was auto). When I hit second he played catchup until about 60 when he was next to me then 80 he was about 2-3 car lengths ahead of me. Now those cars have 315hp instead of the measily 275hp like the 94's, plus i think all the new T/A's come with 3.23's and the 94's came with 2.77's. I would put my money on the 94 but get some headers and it would definately be game.

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1990 G92 5spd LB9 - 3.42

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch

14.4 @ 94mph w/2.0622 60ft

Soon To Come

Edelbrock TES Headers, No Cats, Edelbrock RPM Series Catback, AFPR, Underdrive Pulleys, Short Throw Shifter, Intake, Cam

6-0 Against Rustangs = )
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Old Jun 19, 2001 | 03:59 PM
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From: Illinois, Chicago
I also noticed you don't have the free mods all done (neither do i), get tpis airfoil, and synthetic oil, its maybe worth .1 I had the ram air on my car awhile ago and i liked it, i felt 2nd gear had great pickup. Port your plenum for maybe another .1 in the 1/4, it will help it breathe a lot better and will definately love the ram air. I plan to put the ram air on but not with duct tape, im gonna bolt some air ducts to the air damn and see if that works any better.

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1990 G92 5spd LB9 - 3.42

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch

14.4 @ 94mph w/2.0622 60ft

Soon To Come

Edelbrock TES Headers, No Cats, Edelbrock RPM Series Catback, AFPR, Underdrive Pulleys, Short Throw Shifter, Intake, Cam

6-0 Against Rustangs = )
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Old Jun 19, 2001 | 09:02 PM
  #5  
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
I used to sell 94 Camaro's and they only came with a 3.23 w/6 spd. With the auto, you got the 3.23, but 3.42 was an option.

I think that you didn't notice much diff in acceleration due to the flat torque curve of the LT1. It's really smooth. A friend of mine had a 91 Stang GT and I had a 94 Z. Both sticks. His felt quicker, but when we went to the strip, I ran 14.5 and he ran 15.3. It's sometimes hard to tell by what your butt feels. Just do us a favor and beat him. I love my car more than I ever liked the 94. Just MO. I just need to build mine up now.
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Old Jun 20, 2001 | 12:32 AM
  #6  
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
<font face="Verdana, Arial" size="2">Originally posted by AJ_92RS:
I used to sell 94 Camaro's and they only came with a 3.23 w/6 spd. With the auto, you got the 3.23, but 3.42 was an option.

</font>
That was in 93. In 94+, the 6-speeds are all 3.42's, and the automatics are either 2.73 or 3.23.


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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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Old Jun 20, 2001 | 11:49 AM
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
That's right. My bad. They just kept us informed about the old stuff. Typical car dealer, huh? Sorry.
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