Quote:
Originally Posted by andyrew
Superchargers are NOT more fuel efficient than turbo's. You will always have the parasitic loss of the belt, however on the turbo when under cruise the turbo will not be causing any loss.
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Right...but they're very very very very close.
The new TVS (Twin Vortices Series) units from Eaton/Magnuson are nearly as efficient as an eqivilant-boost turbocharger. When tuned properly, people are actually noticing fuel-mileage increases. They've got a 160° twist on a 4-lobe "rotor" in addition to a bypas valve for low-rpm cruising (
1/3 hp to spin at cruise). So all in all, the parasitic loss of the belt on these units is roughly equivilant to the parasitic loss of compressed exhaust gases in a turbo system. They really are a neat design.
