Originally Posted by Maxwell
why toss the manifold out, when you can close off the long runners and run boost through the shorties? saves you time and money doing a custom fabbed set up. also this is a two or three piece manifold, I believe it can be opened up and guted if neccesary, should act like an air pressure dampening chanber to soften the pressure spikes from bliped throttle.
please explain chuck.
I thought about trying to use the manifold, but it is magnesium, ultra thin walled, and I needed a solid base to mount the supercharger. My conclusion was that MB had the best idea for installation location. With the factory manifold in place my only option would have been to try to cut and mount the sc inside the manifold which would be more of a headache imo.
If I were using a centrifugal type blower I would have definately incorporated the factory manifold.
As for fuel I have switched to 21# hr @ 3 bar injectors and running a B.E.G.I. adjustable fmu. Running a lower base fuel pressure with a more aggressive ratioed fmu. Also running methanol/water injection instead of an inntercooler. Space is a big factor in this decision. Although there should be room for a water to air unit in the future. I may end up using other piggybacks if I run into problems.
I think if I can have the bypass valve close after the ecu switches from closed to open loop I'll be able to avoid cel's popping as well as excessive tire spin. The only other concern is the MAF voltage limitation. The car is running a ton of timing so there shouldn't be a problem with that. My whole goal is to retain a factory feel and gas mileage at low throttle and tons of torque at wot.