Anyone have experience with exhaust manifolds being ported ?

Waffle

Waffle

Member
Any gains from doing it? I'm not in the position to splashing out on a expensive no one with all the money I spending in the car lately :)
 
ElDopesta

ElDopesta

Well-Known Member
There's always gains to be had with porting, efficiency is increased after all.

It's usually done when you've either peaked performance or when your trying to get gains and you don't want to push the engine any further.

Some folks have other reasons, but those 2 are the main ones.
 
DDS789

DDS789

Well-Known Member
There's always gains to be had with porting, efficiency is increased after all.

It's usually done when you've either peaked performance or when your trying to get gains and you don't want to push the engine any further.

Some folks have other reasons, but those 2 are the main ones.

Aren't the standard manifolds good to quite a high bhp too? 450bhp+?
 
ElDopesta

ElDopesta

Well-Known Member
They are good enough.

In a nut shell; porting just improves the flow, which, in turn, allows for extra gains to be had.

The more power you can extract from a stock engine, the better it will always be.

In the old days, everyone would either consider it or just go for it as there were constraints, such as locked ECU's.

Another mod was the Knife Edge Throttle Butterfly.

These days, it's mostly the guys with NA engines like the civic crews that are doing it as they can't extract much more power otherwise, unless they go turbo or supercharged.
 
liffy16

liffy16

Member
Would you get more gains from a tubular manifold?
Anyone tried the cheap ebay ones/japspeed or do they just crack
 
Waffle

Waffle

Member
Thanks for the replays lads. It was something that I had just heard about and wanted to see what ye all had to say :D
 
ElDopesta

ElDopesta

Well-Known Member
Would you get more gains from a tubular manifold?
Anyone tried the cheap ebay ones/japspeed or do they just crack


Cheap ones just crack buddy.

Hardly worth the hassle IMO.


Thanks for the replays lads. It was something that I had just heard about and wanted to see what ye all had to say :D


No worries buddy, it's what we're here for!
 

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