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How much Horsepower with these mods?

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Old Jan 7, 2005 | 06:03 PM
  #1  
pellmanm's Avatar
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From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
How much Horsepower with these mods?

I want to know about how much horsepower at the flywheel that i can expect with the following mods.

-ZZ4 Shortblock
-Trick Flow Heads 195cc intake ports CNC, milled down to 58 cc Chambers for 10:1 compression.
-Lingenfelter/Accel SuperRam intake Set-up
-Twin 58mm TB
-30# injectors
-LPE 219 cam with 1.6 roller rockers. for 219 duration and .560 lift
-50 psi fuel regulator
-Hooker headers
-Underdrive pulleys
-Thermomaster Chip plus low temp stat

Thanks for your suggestions!
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Old Jan 7, 2005 | 07:04 PM
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1989GTATransAm's Avatar
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Depending on the details on how well the engine was assembled and you have a good exhaust and intake track I would estimate at least 400HP. I know people here locally who are running in the mid 12's with basically the same set up. Allen

EDIT: Can't forget the custom eprom.
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Old Jan 7, 2005 | 08:10 PM
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pellmanm's Avatar
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From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
Do you not think that the hypertech chip, low temp thermostat, fan switch, and high pressure adjustable fuel regulator will be enough, or do i need a custom chip?
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Old Jan 7, 2005 | 08:17 PM
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From: Bowling Green KY
Car: 87 IROC-Z
Engine: 350ci
Transmission: T-5
Do you not think that the hypertech chip, low temp thermostat, fan switch, and high pressure adjustable fuel regulator will be enough, or do i need a custom chip?
No. Off the shelf chips are too "cookie cutter" and IMHO a waste of money. To reach the full potential of that combination you will need a custom tune.
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Old Jan 7, 2005 | 08:58 PM
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pellmanm's Avatar
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From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
Do you know any one or any place that could custom burn a chip, or would i have to burn it myself and use trial and error.
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Old Jan 7, 2005 | 09:24 PM
  #6  
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
If you lived in Southern California I could tell you where you could get it done. Maybe post your location and someone may be able to tell you. Allen
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Old Jan 7, 2005 | 10:04 PM
  #7  
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From: Bowling Green KY
Car: 87 IROC-Z
Engine: 350ci
Transmission: T-5
I have a friend here in Bowling Green, but thats about it. Total Engine Airflow in Akron Ohio might be able to.
www.totalengineairflow.com
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Old Jan 7, 2005 | 10:10 PM
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pellmanm's Avatar
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From: Near Milwaukee, WI
Car: 1989 GTA
Engine: 383 Fuel Injected
Transmission: Pro-Street 700-R4 by Pro-built
Axle/Gears: Moser 12 bolt w/posi
I live near Milwaukee Wisconsin(South-eastern Wisconsin)
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Old Jan 7, 2005 | 10:17 PM
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From: Bowling Green KY
Car: 87 IROC-Z
Engine: 350ci
Transmission: T-5
I can't help you in that case. Make a post on the Mid-West forum. I'm sure someone there can point you to a shop.
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