Quote:
Originally Posted by ProdigyCustoms
I just went throught this with our Bull Run Racer which runs a LS3 with a 4 barrel TB. While it has to be tuned in Speed Density, it still seems to be the best choice.
Based on your sig your engine is a factory LS engine, use a factory ecm. The factory ECM is faster, smarter and les money then aftermarket. The aftermarket systems will require a additional ingnition box for the multi coils on the LS engine, the factory ECM handles it all inclusive. And if your running a automatic, you can use a factory trans controller also. Mucho less dollars.
But if you decide on a FAST or Accel, we are delaers. Guess I kinda shot my foot off on this one!
|
I guess I should have stated this before. With my Chevelle, the 6.0 has SLP Performance's L92 heads with 64cc comb. chambers and cam & rocker arm upgrade. Cam specs are .561 & .562, 113 lobe sep. So it isn't stock, but not too radical. The reason I asked this question is I already have all my F.A.S.T. wiring & XIM Ignition controller. I only lack the XFI ECU but was told to send all that back and use OEM ECU and wiring harness by the guy who was going to do my install. I didn't know if he was trying to sell me his stuff or what or was he making any sense. He is also a F.A.S.T. dealer and installs and tunes F.A.S.T. too. I admit the OEM stuff is cheaper, but since I already have the F.A.S.T. stuff minus the XFI that's why I wasn't worried about the price because money was spent. But don't mind sending it back and saving money if OEM is the better way to go. My car is strictly a street car, no racing and will be matted to my brand new T56 Magnum. But want to keep my options open in the future if I choose to stroke it or change to a bigger cam as far as the better ECU tunability. Frank....how much for the F.A.S.T. XFI? Thanks guys for all the replies and help!!!