2.5 inch or 3 inch exhaust ?? - Northern California Ford Owners

This is topic 2.5 inch or 3 inch exhaust ?? in forum Tech Talk at Northern California Ford Owners .

To visit this topic, use this URL:
https://californiafords.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=6;t=019570

Posted by 89goose (Member # 7196) on :

on a 67 - w/ 351 bored .60 over ?

Posted by FORDMAN_510 (Member # 8725) on :

2.5 its better if u had a turbo u would put 3 inch but u want more back preasure so 2.5 is good

Posted by darkhorse04 (Member # 8780) on :

quote:
2.5 its better if u had a turbo u would put 3 inch but u want more back preasure so 2.5 is good

+1. Just make sure you use a good flowing muffler.

Posted by 1SLOWLX (Member # 558) on :

3" let that thing breath. I had 3" on my 347 and made a big difference on the top and throughout the power band. There is no need to have to do exhaust twice just do it once and forget about it

Posted by F.or O.nly R.eal D.rivers (Member # 8971) on :

quote:
Originally posted by darkhorse04:

quote:
2.5 its better if u had a turbo u would put 3 inch but u want more back preasure so 2.5 is good
+1. Just make sure you use a good flowing muffler.

Posted by BlowN67 (Member # 4229) on :

I'm running 3" on my 67 with a 357w 1 5/8 long tubes an a custom 3" h pipe 3" flows an 2.5 tails which will be cut off for custom mandrel bend 3" tails..

Posted by 427 StRoKeR 94 GT (Member # 8722) on :

quote:
Originally posted by 1SLOWLX:
3" let that thing breath. I had 3" on my 347 and made a big difference on the top and throughout the power band. There is no need to have to do exhaust twice just do it once and forget about it

+2 let it breath more its a 351 go with 3"

Posted by F.or O.nly R.eal D.rivers (Member # 8971) on :

2.5" is good to like 400 horses,3 inch will probably rob some of your bottom end power.How much horsepower roughly are you gonna have?

Posted by BlowN67 (Member # 4229) on :

with a 351w 400 hp is just arund the corner, plus the torq of the 351w u wont miss much running a 3" pipe

Posted by 89goose (Member # 7196) on :

Thanks fellas for all the input -decided ill go with 3 inch [burnout]

Posted by BlowN67 (Member # 4229) on :

[Whoo Whooooo!]

Fueled by Ford Mustang Owners
on CaliforniaFords.com