What exactly are the "pre-cats"?
Racer
Joined: Jul 2000
Posts: 363
Likes: 11
From: St. Catharines Ontario CANADA
Re: What exactly are the "pre-cats"? (MagikDraggin)
Pre cats are actual cats...additions to the main shared cat. They are midway between the main cat and exhaust manifold...
This thread may help...
http://forums.corvetteforum.com/zerothread?id=636373
This thread may help...
http://forums.corvetteforum.com/zerothread?id=636373
Team Owner
Joined: Sep 2001
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From: Athens AL
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Re: What exactly are the "pre-cats"? (MagikDraggin)
they are just smaller cats, on the front Y before the main cat on L98s
Thread Starter
Drifting
Joined: Jun 2002
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From: Iowa
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Re: What exactly are the "pre-cats"? (redvette1986)
Ok, I read that thread and I still don't quite get it.
Let's take this one step at a time. There is an exhaust exhaust manifold for each bank. Then on each bank there is this thing called a "precat". Following that for each bank, there is a main or regular catalytic converter. Following that right next to each other under the car is a "resonator". After that for each bank, down at the very end of the exhaust system is the muffler.
So on each bank there are 4 individual items, right? A pre cat, a cat a resonator and a muffler?
Let's take this one step at a time. There is an exhaust exhaust manifold for each bank. Then on each bank there is this thing called a "precat". Following that for each bank, there is a main or regular catalytic converter. Following that right next to each other under the car is a "resonator". After that for each bank, down at the very end of the exhaust system is the muffler.
So on each bank there are 4 individual items, right? A pre cat, a cat a resonator and a muffler?
Team Owner
Joined: Sep 2001
Posts: 62,153
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: What exactly are the "pre-cats"? (MagikDraggin)
There is no resonator on L98, only LT1/4
there are no precats on the LT1/4, only 2 main cats because you have a true dual system
there are no precats on the LT1/4, only 2 main cats because you have a true dual system
Thread Starter
Drifting
Joined: Jun 2002
Posts: 1,847
Likes: 1
From: Iowa
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Re: What exactly are the "pre-cats"? (_freakmonkeydogboy_)
L98s have 2 pre-cats, 1 main cat, and 2 mufflers
LT1/4s have 2 main cats, 1 center resonator, and 2 mufflers
Ok, that's what I wanted to know. I couldn't find any "pre-cats" on my LT1 and wondered where they were.
Thanks much people for your help.
LT1/4s have 2 main cats, 1 center resonator, and 2 mufflers
Ok, that's what I wanted to know. I couldn't find any "pre-cats" on my LT1 and wondered where they were.
Thanks much people for your help.
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