High flow cats, are they unidirectional?
Mar 18, 2007, 10:05 PM
#1
Evolving Member
Thread Starter
iTrader: (4)
Join Date: May 2004
Location: Bay Area
Posts: 159
Likes: 0
Received 0 Likes
on
0 Posts
High flow cats, are they unidirectional?
I was just curious, do high flow cats have to be installed in one direction? or can they be swapped front to back?
Mar 18, 2007, 10:37 PM
#2
Evolving Member
iTrader: (6)
Join Date: Jan 2006
Location: Bay Area, CA / Roma, Italy
Posts: 285
Likes: 0
Received 0 Likes
on
0 Posts
Do they have an arrow that points one way? If not, I would think they are not unidirectional. All they are is a pipe with honeycomb substrate that reacts with the gases to catalize the unburnt fuel and lower emissions.
Mar 19, 2007, 08:33 AM
#3
Evolving Member
iTrader: (7)
Join Date: Aug 2006
Location: SW Michigan
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
My guess would be if it is a recently made cat, it can only be installed in one direction. The reason why you can only install the cat in one direction is the coatings. In most cases the coating varies from one end of the cat to the other. This allows different chemical reactions to happen in a sequence. If you install a cat backwards, the effectiveness of the cat is dramatically reduced and you could risk permanently damaging the coatings. Check with the company who assembled your cat if it does not have a direction label.
Mar 19, 2007, 12:09 PM
#6
Evolved Member
iTrader: (51)
Join Date: Sep 2005
Location: cincinnati
Posts: 1,981
Likes: 0
Received 0 Likes
on
0 Posts
search...ultimate racing hfc, perrin hfc, helix hfc, random technology, etc
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post