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Originally Posted by LS9CamaroSS
would the LS9 give better results than a twin turbo though? i mean i know you're generating less boost, but wouldn't it be more even boost than a turbo charger?
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No it technically wouldn't be as much power per psi of boost, and same can be said for "even" boost. I have seen engine dynos of lets say, the 335i (twin turbo), which has a flat torque curve starting at like 1800rpm (and when i say flat I mean like, straight line) However, the LS9 doesn't need to be anymore efficient, it is ridiculous all on its own. You need to remember though that the supercharger is hypothetically like another alternator on the car (it takes hp to turn) And when it gets to really high rpms, 75-10o crank hp that could be going into the wheels ends up going into turning the supercharger.
That being said, usually, on applications with really small turbos, boosts tends to drop out like 500 rpms before redline. However, fixing this could be as easy as a small turbo and then a slightly larger one for the top end.
The mistake many people do (except in the case of supras) is 1 really huge turbo on, so you basically don't have boost till 5600rpm, then its a kick in the gut of like 900hp until 8000rpm, and then you end up shifting.