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Old Sep 24, 2004 | 11:04 AM
  #1  
Mcdamit's Avatar
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Car: 89' Iroc-Z G92
Engine: TPI 305 G92
Transmission: T-5
Axle/Gears: Limited 9 bolt, 3.45
Idea

i know this sounds... but still, i have a 305 TPi
im gonna being installing bigger heads, 64-72cc haven't decided on everything yet and 1 3/4 headers, i read from holley that if the headers and heads are too big you'll kill off torque by losing backpressure would it be a alright idea to but dual turbos back into the headers like the air system to increase back pressure if the you twin 58mm and supercharge the intake. As said though would it run lean. Im also dumping 42lbs. per hour injectors and new pump along w/ new dual cats and custom dual exhaust system. would it work?
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Old Sep 25, 2004 | 08:22 AM
  #2  
ShiftyCapone's Avatar
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
If this is going on a 305 everything you have picked out is overkill. Consult with the TPI guys to varify but 1 3/4" headers are too big, the chamber size on those heads is too much, and a 58mm TB should only be used if you run 9's. I would just select smaller header primaries if you are owrried about low speed scavenging.
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Old Sep 26, 2004 | 03:29 PM
  #3  
88IROC350TPI's Avatar
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From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
I'm pretty sure that post was a joke..... if it wasnt I'm truely disturbed.
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Old Sep 26, 2004 | 04:18 PM
  #4  
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Originally posted by 88IROC350TPI
I'm pretty sure that post was a joke..... if it wasnt I'm truely disturbed.
what he said!
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Old Sep 26, 2004 | 07:49 PM
  #5  
Mcdamit's Avatar
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Car: 89' Iroc-Z G92
Engine: TPI 305 G92
Transmission: T-5
Axle/Gears: Limited 9 bolt, 3.45
if was a joke, i could never do that to my baby, but yes i got idea
off a diesel, and my car runs 12's-13's mostly stock
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Old Sep 26, 2004 | 09:43 PM
  #6  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Mcdamit

my car runs 12's-13's mostly stock
What do you define as mostly stock? 12's or 13's is not possible with basic bolt ons.
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Old Sep 26, 2004 | 11:33 PM
  #7  
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From: Massachusetts
Car: 91 Z28 & 21 Hellcat Challenger
Engine: L98, Hemi 6.2
Originally posted by ShiftyCapone
What do you define as mostly stock? 12's or 13's is not possible with basic bolt ons.
look at 25thmustang, he claims with a couple bolt ons and hes in 12s :lala:
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Old Sep 27, 2004 | 10:28 AM
  #8  
Mcdamit's Avatar
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Car: 89' Iroc-Z G92
Engine: TPI 305 G92
Transmission: T-5
Axle/Gears: Limited 9 bolt, 3.45
Mostly stock

I define mostly stock as the motor looks some what original

fuel injectors
throttle body
stepped headers
carbon fiber driveshaft
t56
head work
custom exhaust
valve springs
rocker arms
valves
lifters
motor looks orig except for headers
im a fan of holley and lunati
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Old Sep 27, 2004 | 11:23 AM
  #9  
ShiftyCapone's Avatar
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: Mostly stock

Originally posted by Mcdamit
I define mostly stock as the motor looks some what original

fuel injectors
throttle body
stepped headers
carbon fiber driveshaft
t56
head work
custom exhaust
valve springs
rocker arms
valves
lifters
motor looks orig except for headers
im a fan of holley and lunati
Besides the headers and head work bothing listed there adds power. I geuss were trying to get you to enlighten us on your mystery combo that runs a wide range of times.
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Old Sep 27, 2004 | 11:36 AM
  #10  
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From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
13.99, sure.
12.00, never

see the huge difference in saying "12-13" second car? I still think this post is a joke...
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Old Sep 27, 2004 | 02:22 PM
  #11  
Mcdamit's Avatar
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Car: 89' Iroc-Z G92
Engine: TPI 305 G92
Transmission: T-5
Axle/Gears: Limited 9 bolt, 3.45
Hi twelves low thirteens, yes the post was originally a joke and if i had a camera i'd give u some pics but yeh. She's fun to drive just i learned soemthing if u wanna find out y go to 3go. Never let ur girl take ur car


oh yeh the range of times is cause i cant drive, spun her out this morning in the middle of a curve

Last edited by Mcdamit; Sep 27, 2004 at 02:26 PM.
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