Fuel injecting a larger displacement Type IV, fuel flow is easy what about air? Options

[DNHunt]

Any FI gurus out there.

If I build a larger Type IV would it be possible to adapt the stock 2.0L intake to supply air. Tuning induction is kind of a mystery to me and I need some info. I understand that runner length and diameter and plenum volume are all important. Also engine displacement and cam duration and target RPM are important.

So, for the fun of it. Is it possible to use 2.0L intake on a 2270 with a Web Cam 163/86b. Target RPM 5000.

Doing a little dreaming here, hope to learn something too.

Dave

[DNHunt]

I'm just starting to get into this. It was interesting to me that even though I enlarged my throttle body to 50mm it appears I didn't flow any more air as my power curve on my dyno pulls falls off about the same as the published results for stock motors. It would seem to me that restrictions are elsewhere. Geoff says its the heads and I've also heard it's the cam. I certainly have no reason not to believe them.

Does anyone know if the intake was really tuned or was it more of a compromise to fit in the engine compartment? When I look at the stock runners it sure looks like they could easily be made longer by including a second bend. Could it be that a second bend would cause more turbulence and therefore offset any gains caused by ram effects? Is the broad power curve at least somewhat from a detuned intake? Could it be that the restrictions in the head at the exhaust port eliminate any gains from the intake?

I'm all questions and no answers, I'd appreciate any info.

Dave