catalytic converter

catalytic converter

Postby Dan [OP] » March 7th 2009, 4:01am

will my 95 astro run well enough if I hollow out the catalytic converter until I can afford to install a new one? desperate in Washington
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Re: catalytic converter

Postby astro355 » March 7th 2009, 4:51am

What is the problem with your catalytic convertor?
Diagnose 1st, never be a parts changer!

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Re: catalytic converter

Postby Big_kid » March 7th 2009, 4:52am

While I can't recommend doing this for legal reasons, I'll say that racecars don't run them and I'll leave it at that. :whistle:

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Re: catalytic converter

Postby astro355 » March 7th 2009, 4:59am

The problem with hollowing them out is that the converter is a larger diameter than the exhaust pipe. The exhaust traveling thru the pipe to converter and pipe again will go from a hi pressure to a low pressure and then hi again, that really messes with good flow. Not to mention the ricerish type noise that it will create.
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Re: catalytic converter

Postby Farmer » April 4th 2009, 10:37pm

if you hollow it out run a piece of pipe that just slides through the inside and weld it in, no more expansion area. :D
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Re: catalytic converter

Postby rev_les » April 20th 2009, 4:43am

I .. uhh.. sorta had a bad backfire on my '99 that blew my muffler wide open like a tincan once, before I figured out my coil was bad ( I was starting it with ether) *no redneck jokes here* lol.. anyway, I realized a while back that the cat's now like looking through straight pipe. It runs fine, it's a bit loud with my handbuilt single chamber muffler though. Oddly, I get no code 420 from it.HOwever, I have a new Magnaflow cat I need to get welded in now because here around Houston,it has to pass the sniffer...
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Re: catalytic converter

Postby nomo » April 20th 2009, 5:18am

I recently purchased a '95 Astro that the previous owner fancied as being somewhat of a hot rod. Thus, it has a 'high-flow' exhaust system with no cats. Sounds bad (too loud), but the little van runs OK and has no warning lights illuminated.
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Re: catalytic converter

Postby ihatemybike » April 20th 2009, 2:35pm

My '94 had the cat's internals break apart and occasionally clog my exhaust, broke the rest out and drove many months till I was given a '87and put it's cat on it. Little louder, but no problems.
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