Re: 2 intake Manifold Y8/Z6 Which is better?
 

you guys need to remember with the IAT that honda compensates the tuning for where they put it. So if you do put it in a different location it may change something a tiny amount, but the fact is you're altering something so radical (IE: head swap, turbo) that it's probably not going to matter as long as you have it and the reading is close.

Re: 2 intake Manifold Y8/Z6 Which is better?
 

ive read a couple articles about swapping a y8 mani on y7 heads and such with great results power/torque wise..i am not saying your wrong since this is what you do for a living but could you elaborate more on z6 vs y8 runners so i can better understand??

Re: 2 intake Manifold Y8/Z6 Which is better?
 

Well you have to look at both manifold side by side to see what Im talking about. Y8 plenum is sweet but the runner volume is very similar to the d15b7 manifold weaksauce. Z6 manifold with basic port work to increase plenum volume along with the fact the runners out of the box are superior is what makes the z6 my choice all day long



Testing at the track didnt lie 6 years ago doesnt lie today



Its the route to go.

Re: 2 intake Manifold Y8/Z6 Which is better?
 

so all in all if you had both a y8 and a z6 mani the best route is y8 plenum and z6 runners w/ porting for the all out killer of D mani's ?

Re: 2 intake Manifold Y8/Z6 Which is better?
 

dohc zc plenum
z6 runners

Re: 2 intake Manifold Y8/Z6 Which is better?
 

cool.. snt you a pm ^^

Re: 2 intake Manifold Y8/Z6 Which is better?
 

didnt get it

Re: 2 intake Manifold Y8/Z6 Which is better?
 

sorry i wasnt finished writing it.. you should have it now. ;D

Re: 2 intake Manifold Y8/Z6 Which is better?
 

this means I have to dig up the pics?

Re: 2 intake Manifold Y8/Z6 Which is better?
 

I might have pics too from hickmans old street 12 sec sohc



Its the ganagster set up but needs to have the 92+ flange welded on so you can go larger than a 63-60mm tb