Quote:
Originally Posted by transam
Being as my system doesn't use a wideband/o2 do you feel it's a good set up on a supercharged set up? I have no problem using the mefi as long as I can have it running right. I can drive the car down to California or anywhere on the west coast but then the car won't be tuned for the altitude and temps back home. It's either that or do it locally but spend 700+ for the USB and unlock. That's why I was debating throwing a fast at it that will retain my drive by cable tb and not require a maf,or run oem ECM and running a maf and drive by wire set up.
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I like the wide band systems like Fast, Accel, etc. that allow wide open throttle closed loop for forced induction setups. Just gives a little motre safety factor in that the correction is still on at WOT and it will try to add fuel if you're lean or subtract if you're lean. Plus you can limit how much it adjusts either way.
With that said, the non wideband systems like the factory ECM's work fine with forced induction, with the proper tune. I am not a fan of the MEFI 4, I would never run that system in anything I owned. Just doesn't have the features and easy tuneability of most the other systems. Does it even run a two or three bar MAP?