Thanks didn't think to look there.
So the best they got was ~285cfm, and Demon had a further honed one that he didn't list specs on.
The formula I used off his site equates to ~392cfm draw at for 7500RPM. I'd like to get alot more of that air into this motor. I don't know if he got big numbers but I had a couple ?'s about a custom manifold setup.
But first things first, can you get the SVT UIM to flow that much? If so great and thats all I need.
Setup 1: Custom machined split port LIM that maintains oval port head shape (slightly enlarged) w/ a split port opening to utilize an offset injector position. The LIM would taper down for a venturi effect for optimum performance.
I would want to do this so you don't have to cut a huge "hole" in the head to use the split port LIM where there is still a large gap (more than you I think you would need for the expansion of the primary intake into the secondary for swirl effect) that you lose velocity from.
The UIM I had a couple ideas about. One would be a variable runner length like the SVT ( or just a max EH SVT UIM) and the other would have two identical length tuned runners (like the corvtte ZR-1). One having a smaller crossection for low end TQ and the other having a larger for high end. Balance and optimization would be key here to keep similar curves to the SVT while being able to supply more air for the high revs (~7500).
Option 2: This would keep the oval shape. Custom machined LIM. UIM w/ 6 tapered runners fed form two opposite plenums like the SVT.
I thought about having the UIM's being fed from a common plenum but from the looks of things, even if you could package all this it looks like the you couldn't make all the trumpets fit in there. So it looks like it will be of a dual plane design.
Forgive me but I'm still VERY ignorant on the subject of intake tuning and have a lot to learn about it. Discuss please.
Last edited by rac74; 02/01/06 01:43 AM.
