Oversize cats?
Thread Starter
|
Senior User
Joined: Nov 2009
Posts: 273
Likes: 0
From: Outside Providence, RI
Oversize cats?
It occurred to me that the factory converters are sized for specific engines and are expecting to see only a certain amount of unburned fuel from upstream. With a bigger engine, I'm guessing that that you also need a larger cat to handle more fuel.
So if you are planning to make more horses / burn more gas with headwork or a cam, it seems like a good idea to up the capacity of the cat(s) so that you have no problem passing inspections.
I'm pretty sure that someone has sorted this out before, so if anyone here has a link to some threads on the subject, that would be most helpful
So if you are planning to make more horses / burn more gas with headwork or a cam, it seems like a good idea to up the capacity of the cat(s) so that you have no problem passing inspections.
I'm pretty sure that someone has sorted this out before, so if anyone here has a link to some threads on the subject, that would be most helpful
Posting Guru
Joined: Nov 2009
Posts: 2,244
Likes: 1
yea its been sorted... its simple u trash the oem cats and go buy high flow cats
the oem cats are to restrictive for a lawnmower and ford used 2 one right after the other...
thats like inhaling threw a water hose and exhaling threw a stirring straw
the oem cats are to restrictive for a lawnmower and ford used 2 one right after the other...
thats like inhaling threw a water hose and exhaling threw a stirring straw
Elder User
Joined: Feb 2007
Posts: 601
Likes: 1
From: Chicagoland
It occurred to me that the factory converters are sized for specific engines and are expecting to see only a certain amount of unburned fuel from upstream. With a bigger engine, I'm guessing that that you also need a larger cat to handle more fuel.
So if you are planning to make more horses / burn more gas with headwork or a cam, it seems like a good idea to up the capacity of the cat(s) so that you have no problem passing inspections.
I'm pretty sure that someone has sorted this out before, so if anyone here has a link to some threads on the subject, that would be most helpful
So if you are planning to make more horses / burn more gas with headwork or a cam, it seems like a good idea to up the capacity of the cat(s) so that you have no problem passing inspections.
I'm pretty sure that someone has sorted this out before, so if anyone here has a link to some threads on the subject, that would be most helpful
