Intake Manifolds For NA

[RandyRhydah]

ok so after a good read around alot of people are favouring the performer X IM by edelbrock because they are good for around 6000 - 8000 rpm like most of our street cars are.

im just wondering if anyone has had any experiance with skunk2 pro and performer X intake manifolds and what would be best for an internal stock sirg b18c with i/h/e with plans on getting cams and a good tune next on the list.

alot of the people from the states are swearing by performer x over the skunk2 but im still yet to see a dyno sheet that proves they are acually better.

what are your experiances with different intake manifolds and what other ones have you tried like aebs, obx or blox?

[96VTi-R]

From what i read when i was doing some research on IM's the edelbrock is better for higher HP builds as it focuses more on high RPM and the Skunk2 is better for mild builds/street cars, i ended up going with the skunk2 on my B18C2 with I/H/E and i got 96kw which is kinda low but was just tuned with a AFC Neo, i went with the skunk2 only because it was easier for me to source locally. hope that helps out a little lol

[TODA AU]

Neither... You'll make more power everywhere with a modified stock manifold.

[96VTi-R]

even with the stock sirg IM which i think is the duel intake runner design?

[TODA AU]

even with the stock sirg IM which i think is the duel intake runner design?

Yes... even with the somewhat under-rated B18C2 intake manifold.
NB: The function of the secondary runners must remain via ECU controlled VSV. Don't bypass this.
Larger than 65mm in the throttle is not required.

[RandyRhydah]

my conversion came with a p73 itr ecu anyway.. so the butterflies musnt be working in the first place?

[sinseven]

id go skunk2 good reviews on them for street and track cant go wrong with it lol
but can be up to personal opinion too

[beeza]

Neither... You'll make more power everywhere with a modified stock manifold.

By porting it out in the right places?

[richy]

Remember the skunk2 is pretty much a copy of the ITR IM

[beeza]

Really? but dont people upgrade from the itr to the skunk2?

[richy]

Yes, difference is that the skunk2 throttle opening can be ported to 75mm or something like that which some people need hence the upgrade but other than that... anything over 65mm is an overkill on most applications.

[beeza]

I would still tend to think that the skunk2 would flow better than stock though..

A 'modified' stock one as Adrian said above would be the go I reckon