Originally Posted by
SuperLooks like the N1 manifold is alot thicker than the standard VE's. Either that or the porting on the flang is giving the illusion that the walls are seriously worked. I've taken one to about 1" before the walls were too thin. Looks like you took awholelot out of the floor too!!
Nice work.
If you see all the added weld on the outside of the manifold. that is because it gets super thin in those spots, and in some spots you have to have the weld there because you actually will grind right through the factory material. Some spots I have probobly taken out about .25" or more material. There is also a few things you have to do to the plenum in a few spots to give better air distribution to the rear runners.
This manifold has been opened up and worked over every sq millimeter. It has a very nice transition and taper from the plenum to the cylinder head. This is why the manifold flows so much. This particular manifold actually flows better than most honda manifolds as well.
If I could make an intake manifold, or offer modified ones for the price range of the budget headers I would. As of now, I Can not do that.