will removing cats cause stock tbi chip to go lean?
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Joined: Jan 2003
Posts: 1,613
Likes: 10
From: Tulsa, OK
Car: 1989 Formula WS6
Engine: L03 305 TBI
Transmission: T-5
Axle/Gears: 10 Bolt; 3.42 Posi
will removing cats cause stock tbi chip to go lean?
Well, something's rattling around in one of my cats. I figure I've either got a piece of the cat broken off and stuck in there, or the engine has coughed up a piece of a piston. The only way to find out is to pull the cat and see what falls out.
If it's the cat, I'm thinking about just eliminating the cats and having a "test pipe" made. Since I've moved to Oklahoma, there aren't any emissions inspections, so I can de-smog the car if I want to.
My question is, will pulling the cats cause my stock TBI and chip to go lean? I already noticed it get leaner since installing the headers and exhaust.
If it's the cat, I'm thinking about just eliminating the cats and having a "test pipe" made. Since I've moved to Oklahoma, there aren't any emissions inspections, so I can de-smog the car if I want to.
My question is, will pulling the cats cause my stock TBI and chip to go lean? I already noticed it get leaner since installing the headers and exhaust.
Joined: Feb 2001
Posts: 13,777
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
You won't have any problems if you remove the cat. The 02 is upstream of the cat and you can just let the AIR tube vent out in space.
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From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
Re: will removing cats cause stock tbi chip to go lean?
Originally posted by seanof30306
If it's the cat, I'm thinking about just eliminating the cats and having a "test pipe" made. Since I've moved to Oklahoma, there aren't any emissions inspections, so I can de-smog the car if I want to.
If it's the cat, I'm thinking about just eliminating the cats and having a "test pipe" made. Since I've moved to Oklahoma, there aren't any emissions inspections, so I can de-smog the car if I want to.
Thread Starter
Joined: Jan 2003
Posts: 1,613
Likes: 10
From: Tulsa, OK
Car: 1989 Formula WS6
Engine: L03 305 TBI
Transmission: T-5
Axle/Gears: 10 Bolt; 3.42 Posi
Re: Re: will removing cats cause stock tbi chip to go lean?
Originally posted by brodyscamaro
Look at my sig, I don't care, but you made it sound like it was legal or something
Look at my sig, I don't care, but you made it sound like it was legal or something
Supreme Member
Joined: Mar 2001
Posts: 5,144
Likes: 2
From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
A drunk old guy told me last night at the bar, "If you are going to be a fool, be a quiet fool."
Thread Starter
Joined: Jan 2003
Posts: 1,613
Likes: 10
From: Tulsa, OK
Car: 1989 Formula WS6
Engine: L03 305 TBI
Transmission: T-5
Axle/Gears: 10 Bolt; 3.42 Posi
Originally posted by brodyscamaro
A drunk old guy told me last night at the bar, "If you are going to be a fool, be a quiet fool."
A drunk old guy told me last night at the bar, "If you are going to be a fool, be a quiet fool."
Senior Member
Joined: Feb 2004
Posts: 860
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From: Albany, NY Area
Car: Red on Red 89 RS
Engine: LO3 305 TBI
Transmission: TH-700R4
Axle/Gears: 10-bolt / 2.73
Originally posted by seanof30306
A wise bartender once told me: Don't stick your d**k in the fan".
A wise bartender once told me: Don't stick your d**k in the fan".
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Joined: Aug 2005
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From: Ohio, near columbus
Car: 89 iroc-z
Engine: 305tpi
Transmission: wc-t5
Axle/Gears: 10 bolt 3.08 posi (4 now)
Originally posted by jimp2001
A wise bartender once told me: "Take your d**k out of the fan."
A wise bartender once told me: "Take your d**k out of the fan."
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