catalytic converter flowchart
Thread Starter
Le Mans Master
Joined: Jul 2000
Posts: 7,639
Likes: 326
From: Greenville SC
catalytic converter flowchart
I saw a chart comparing types and brands of cats years ago by thier flow rates. Anyone have this or can anyone recommend a type and part #? I know the RT metal matrix are good, anything comparable at a lower price? I have heard the Carsound are good too. I want 3" bullet type.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
universal Carsound are the best bang for the buck, if you weld em in. Everything I've seen shows they are on par with a random tech (not sure about bullets though).
There's a few comparisons floating around but they are all only partial lists. And you really can't expect the same flow from different testers.
Here's my findings so far..
http://forums.corvetteforum.com/show...+sound&post=20
There's a few comparisons floating around but they are all only partial lists. And you really can't expect the same flow from different testers.
Here's my findings so far..
http://forums.corvetteforum.com/show...+sound&post=20
Thread Starter
Le Mans Master
Joined: Jul 2000
Posts: 7,639
Likes: 326
From: Greenville SC
Thanks, is DTH the same as Dynatech?
For instance if I have a motor making 450-475FWHP, how much will I lose adding dual 3" metal matrix cats? I have heard only 2-3 RWHP, but I am not sure after reading the #s from your link?
For instance if I have a motor making 450-475FWHP, how much will I lose adding dual 3" metal matrix cats? I have heard only 2-3 RWHP, but I am not sure after reading the #s from your link?
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
The flow numbers won't tell you squat about what gains you'll get, or what they'll flow on the car. They only show you how restrictive the cats are compared to eachother. But keep in mind, if you get a 20% less restrictive cat, but the cat is only about 10% of the restriction in your intake+exhaust, then you've actually only made the whole thing 2% less restrictive.
That's why high flow throttle bodies are so overrated. They make up such a small part of the complete system.
That's why high flow throttle bodies are so overrated. They make up such a small part of the complete system.
