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Removing Smog Equipment???

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Old Dec 19, 2001 | 12:40 PM
  #1  
Don_89Iroc's Avatar
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From: fairmont WV USA
Removing Smog Equipment???

i have removed my smog equipment from my iroc, and pluged off my headers, i thought maybe it would free up some HP, but im not sure, has anyone else done it? would you recommend it or should i put it back on?? also if you remove it do you have to change anything in your computer? Thanks for your help
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Old Dec 19, 2001 | 02:20 PM
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
I wouldn't do it to make horsepower, but instead to make the engine bay much cleaner. Some will say that it will add horsepower, however it's doubtful. Removing the cat would add horsepower, but I didn't see you mention that one.
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Old Dec 19, 2001 | 06:58 PM
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Momar's Avatar
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From: Decatur, Illinois
How much power will removing the cat add?

Thanks

Ben
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Old Dec 19, 2001 | 07:25 PM
  #4  
Ions91Z28's Avatar
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
5 at best probably. You'll lose a little torque as well. This is what I've heard, someone else may be able to confirm this for sure however.
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Old Dec 19, 2001 | 09:11 PM
  #5  
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From: North Central Indiana
Car: 86 IROC
Engine: 383
Transmission: TKO 600
Axle/Gears: 3.54 Dana 44 IRS
how the heck would he loose torque? a hollow cat can be a restriction, but on a stock motor i would think it would free up a little power. the ristriction of the cat honeycomb is more than the hollow cat. i aint sayin he will gain 15 horse, but i would seriously doubt he would loose anything. maybe i am wrong, correct me if i am.
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Old Dec 19, 2001 | 11:25 PM
  #6  
HM Murdock's Avatar
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From: Justin, Texas, USA
Car: 1988 Formula and 1995 LT4 Z28
Engine: 305 TPI and 361 LT4
Transmission: M5 and stalled A4
One question...Where do you plug the manifolds at, and what do you use to do it? On my 95 Z28, it just had 1 outlet on each manifold, not 4 per...Also, as to the HP question...If you remove the pump, and reroute the belt, then there would be one less parasitic device....


Thanks...I am new to the TPI experience...
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Old Dec 19, 2001 | 11:38 PM
  #7  
Ions91Z28's Avatar
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
1meanz, honestly don't know. Always wondered myself. I guess it would work on the same idea as putting a large header on a stock car?

Not sure, I'm sure someone could respond however.
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