All lies. Above 600whp is when you get a bigger aftermarket one.

 

yea ill be the a$$hole that says it, tell your friend to stick to video games cuz hes talkin out his a$$, he obviously dont know what hes talking about. Porting an intake manifold done properly, will do two things, one obviously increase the cfm of airflow coming into the engine due to bigger space. The other thing it does is with smooth radius ports allows higher velocity of air coming into the head, so rule of thumb the faster air goes in and out the engine the more power itll make.

 

I've always heard its when you're above 578.6

Normally on any vehicle good porting of the intake/exh manifolds will yield some type of gain.

 

Thanks for the input guys. I got a good idea on what to expect from this.

 

okay how many evos have made 600-700 with stock intake manifold and stock ported throttle bodies? i'd say many, you dont need an ugraded intake maniold unless your making 700+ like i said before

 

motor went at idle because of 10:1 compression?
LOL yeah, ok

 

MAP has a couple threads on here claiming some really nice gains with a ported intake mani even with a stock turbo (https://www.evolutionm.net/forums/mo...-manifold.html) . So apparently a ported intake mani will help even on cars with less than 578.6HP

 

You said

"porting it will have barely have any gains unless your making 700+, just upgrade your throttle body"

That is a bunch of non-sense. A ported intake manifold will make gains at any time on a evo with 0 losses(ported right of course), upgrading a throttle body won't do **** if its on a opening smaller then it.

Once above the 600whp range aftermarket manifolds really shine bright.

So your statement of porting will barely have any gains had no facts behind it.

 

This thread is so full of fail..........it's why the internet is mostly useless.

10:1 compression needs what for fuel?! Local machine shop porting EVO parts out of the blue?! I hope they spend a lot of time on their engine dyno and flow benches with countless heads and manifolds for you so they can get it figured out. No gains from porting a stock intake? No gains from a larger throttle body?

Sheesh.

A 300 whp EVO will see good gains with proper porting of the intake/throttle body and exhaust manifolds. Head not so much. 10:1 I can run on 87 octane.

 

I ported the IM myself and there was a very noticable difference.
My car pulls alot harder through all the gears now,so definetly worth the money if you want to have this done.
Also,professional port jobs like MAP,PPI... ,will yield bigger gains than a diy port job because they are just better equipped for this.

 

LOL, thank you.
Some vws run high comp and turbo from factory, on gas.