exhaust : headers or merc style manifolds
#1
Registered
Thread Starter
Join Date: May 2002
Location: istanbul
Posts: 1,580
Likes: 0
Received 0 Likes
on
0 Posts
exhaust : headers or merc style manifolds
i have to make a desicion soon about exhaust system soon.
-i already have water injected which caused lots of problems last year.
-have another set water walled but they are not in very good condition and i dont want to wasit time in the middle of summer
so i need to buy a new set but: headers style is expensive on the other hand mercstyle manifolds (with risers etc) are 1/3 price.
-is there a huge performance difference between these two?
my engine is blown bb 520 cu.
thnx for help
-i already have water injected which caused lots of problems last year.
-have another set water walled but they are not in very good condition and i dont want to wasit time in the middle of summer
so i need to buy a new set but: headers style is expensive on the other hand mercstyle manifolds (with risers etc) are 1/3 price.
-is there a huge performance difference between these two?
my engine is blown bb 520 cu.
thnx for help
#3
Cross sectional area of the runners is more important in a blown application than the scavenging headers provide. I have a friend that made more HP with Stainless Marine manifolds than with headers. As long as you use performance manifolds I think the performance difference will be small. In general the headers will probably make a little more HP.
__________________
[img][/img]
[img][/img]
Thread
Thread Starter
Forum
Replies
Last Post
LEW153
General Boating Discussion
0
06-06-2007 03:25 PM