removing catalytic convertor
removing catalytic convertor
Hi Everyone,
I live in the UK and it is perfectly legal to remove the catalytic convertor over here. I have bought a replacement section of exhaust to replace the cat, but I noticed that the cat has a smaller pipe going into the side of it. The Haynes manual says it is part of the air management system. What is this pipe for and what do I do with it when the cat has been removed? Do I leave it loose under the car, or block it off or what?
Any help anybody can give me would be much appreciated
Thanks,
Peter
I live in the UK and it is perfectly legal to remove the catalytic convertor over here. I have bought a replacement section of exhaust to replace the cat, but I noticed that the cat has a smaller pipe going into the side of it. The Haynes manual says it is part of the air management system. What is this pipe for and what do I do with it when the cat has been removed? Do I leave it loose under the car, or block it off or what?
Any help anybody can give me would be much appreciated
Thanks,
Peter
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Joined: Dec 2001
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From: Tucson - MdFormula350 = Post uberWhore
Car: Sexy
Engine: Stock
Transmission: Slipping
That's the A.I.R. pipe. It runs to a pump that's belt driven, which you can remove. It pumps air into the catalytic convertors to help the catalyst work, and also pumps into the exhaust manifolds. Until I replace my cats (I have bypasses on them, but I require cats for emissions here), I've just left the pipe open.
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Joined: Mar 2001
Posts: 5,144
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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
you can leave it open. i'd suggest remove the smog system with that pipe though, if you dont have to have it
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Joined: Oct 1999
Posts: 566
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From: New Britain, CT, U.S.A
Car: '87 IROC
Engine: LT1 350
Transmission: 700-R4
Yup, you'll now be able to remove the air pump and bracket, all that unnecessary tubing to the cat, all the extra vac lines and sensors...You'll really clean up the engine bay!
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Thanks for the help guys - I'm nearly done fitting the exhaust. As to how I drive it, well, I sit on the left side of the car as normal (for you guys anyway), but I also have to drive on the left which means I drive next to the kerb of the road.
The only real problem is trying to overtake - can't see a thing
And yep - these cars are definitely considered imports over here - bear in mind that fuel costs about £3.50 ($5) a gallon, and you'll understand why not many people use them!!
P
The only real problem is trying to overtake - can't see a thing

And yep - these cars are definitely considered imports over here - bear in mind that fuel costs about £3.50 ($5) a gallon, and you'll understand why not many people use them!!
P
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