Quote:
Originally Posted by txmach302
hello there, so anyone know if the and how much boost it would take for a KB 2.1L to push out 625 to 650rwhp??? also can it do it without over spinning the s/c???
this also would have a intercooler too on with it,
why i ask about the 2.1L is cuz TRmach told me on the 2.2L and up you would have to do alittle more modding (which means more money) and the 2.1L is a direct fit and KB sells the Kit. so that is why i would be going with a 2.1 over the others.
ASh
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ASh, I don't think that all by itself the 2.1 can push those numbers out. It would take some sort of secondary effort to achieve. Mine did it, but that's because it had a 100 shot of nitrous helping out! In addition to the blower, it would probably take either nitrous, or meth injection, or race gas, or some kind of combination of those things to put down over 625rwhp. Kenne Bell says they have a 21psi pulley for the 2.1, but I've never seen anyone ever push one beyond 18psi, and it gets pretty hot! Mine was tuned for 16psi, pulling 17 degrees of timing, with a fairly rich a/f mixture on 93 octane, and by itself put down over 527rwhp. Leaning it out some more, bumping the timing up to maybe 21 degrees, and going 17 or 18psi, it might see high 500's, or low 600's, but that's on the ragged edge, and not very practical for a street car.
The KB 2.2 on up, are all meant for Cobra-type applications, so you would have to do a full Eaton swap to make them work.