Quote:
Originally Posted by wolf
Well that reads like it's still from a 1988 catalog, where recalibrating the OEM EFI wasn't an option, but that's just not the case anymore. Hurryinhoosier62 made the blanket statement that "fuel injected engines need LSAs of 112-116 degrees", and didn't specify "factory" EFI with the OEM calibration, so I was preparing to disagree with that statement. I've had a 106 LSA cam in my EFI Stock Eliminator car since the mid '90s and the National Records it set can attest to how well that cam works, but of course it's with a proper EFI calibration. I've done a ton of EFI calibration work over the years for tighter LSA cams with both Speed Density and Mass Air OEM systems and it's not that difficult to make them work. Now, would I want a 106 LSA cam in a street car? Hell no. But my point is a tight LSA cam has it's place, and can absolutely work with EFI.
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Closed lop or open loop? MOST factory EFI systems with closed loop can't "keep up" with a tight LSA. Most cam manufacturers advise you to stay with a loose LSA IF you're running an OEM closed loop system. I could be wrong, but I believe most aftermarket EFI systems recommend an LSA of 112-116 degrees as well.