long primary vs. short primary exhaust
Thread Starter
mad scientist
Joined: Feb 2001
Posts: 2,665
Likes: 2
From: Savannah, GA
Originally posted by von
Mazdaspeed7. Sorry but I didnt quiete understand what you are telling me.
Are you saying that 2.5 inches CAT-BACK ( single) and 2.5 inch headers are going to restrict my top end with a non street ported engine??? And is the Street header considered long or short??? I think anything will give better top end than my stupid stock muffler dont you think?
Mazdaspeed7. Sorry but I didnt quiete understand what you are telling me.
Are you saying that 2.5 inches CAT-BACK ( single) and 2.5 inch headers are going to restrict my top end with a non street ported engine??? And is the Street header considered long or short??? I think anything will give better top end than my stupid stock muffler dont you think?
No. 2.5" is fine for any n/a unless youre running LOTS of nitrous. And the street header is short primary.
Senior Member
Joined: Sep 2001
Posts: 675
Likes: 0
From: Winnipeg, Manitoba
i hear long and short thrown about alot. how about some actual lengths with that. i have headers myself so if i know what length is considered long or short id be grateful for the info.
Senior Member
Joined: Sep 2001
Posts: 675
Likes: 0
From: Winnipeg, Manitoba
BTW check out this link for some info. i read it awhile back its interesting and maybe helpful:
http://personal.riverusers.com/~yawpower/
tech articles section
http://personal.riverusers.com/~yawpower/
tech articles section
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