Andres2882 said:Turbochargers are "powered" by exhaust gas and thus its easier to find room for them considering you can move them all around in your engine bay.
Since superchargers need to be powered by your serpentine belt, it'd be pretty difficult to find enough space for them in that limited area. Routing the piping would also be a nightmare. Simply put, it's just easier to have one and if you need more boost, upgrade the pulley or move up to a bigger S/C.
Shadrack said:Two superchargers add twice the drag on the motor. For simplicity, you may see 100hp gain with one supercharger. However, you may only see a 150hp gain when using two superchargers. It it MUCH more efficient to use twin turbos.
I've read somewhere at full boost, a supercharger robs almost 100hp from the engine just to pressurize the air. However, the same turbo setup only uses 10hp, thus, explaining why a Turbo can make much more HP with the same boost level over a supercharger.
100hp is excessive. My Eaton eats up probably in the 30-35hp range at maximum blower RPM. Still not as efficient as a turbo, but not nearly as inefficient as originally stated.Shadrack said:I've read somewhere at full boost, a supercharger robs almost 100hp from the engine just to pressurize the air. However, the same turbo setup only uses 10hp, thus, explaining why a Turbo can make much more HP with the same boost level over a supercharger.
Gearbanger 101 said:100hp is excessive. My Eaton eats up probably in the 30-35hp range at maximum blower RPM. Still not as efficient as a turbo, but not nearly as inefficient as originally stated.
Dbeck002 said:Lyncher thats a cool idea but this is what will happen.
Say you have two vortechs each pushing 9 psi. Together they will still produce 9 psi of boost BUT they will produce twice the volume. Becuase boost fills the cylinders of a 302 so fast (its a small V8) i dont see the need for 2. On the other hand a 460 BBF could make use of 2 because of the very large displacement. Getting that 9 psi will take half the time with two superchargers than one.
Than again we have much larger superchargers for the 460 to fill its displacement with boost.
So in effect we need not 2 superchargers, but only one correctly sized one for the engine.
89white50 said:Some Big block motor boats have twin Superchargers. Both twin screws, ive seen in it many boating magazines. dunno y you would do it to a car though.
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