Alternative Port EFI Intakes This board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.

power issues

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Old May 28, 2007 | 06:25 PM
  #1  
scamaro355's Avatar
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Joined: Dec 2003
Posts: 489
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From: wv
Car: 92 rs
Engine: 355 stealth ram, dart heads, S480
Transmission: 4L80E
Axle/Gears: 3.42
power issues

Im running the stealth ram with 200cc dart iron eagle platinum and the hot cam hooker cat back and hooker shorty headers running the 730 ecm right know according to the g-tech im putting down 235 hp and 290ftlbs this seems low to me to. Stock throttle body its trapping 109 according to the g-tech. I mean going from a tbi 305 to this is a big change i was just expecting more
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Old May 30, 2007 | 06:27 AM
  #2  
nedoss's Avatar
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Joined: Apr 2005
Posts: 141
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From: Texas
Car: 1986 Camaro
Engine: 355 HSR
Transmission: TH-700R4
Axle/Gears: 10 bolt 4:11 posi
Re: power issues

Have you been able to get to a track to what kind of times your layin down? I'm sure the g-tech is somewhat accurate but you really need a "baseline" from a track to know how well your doing. With a 109mph through the traps though you ought to be in the low 13's which is more than 235hp for the weight of your car.
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Old May 30, 2007 | 12:27 PM
  #3  
1989GTATransAm's Avatar
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Joined: Sep 2003
Posts: 6,859
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: power issues

A custom tune might go along way.
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