Originally Posted by ATSTURBO
Gentlemen,
This is Thomas Knight. I will be happy to add some additional info for your consideration. The alternator Mounted Belt Drive Turbo (AM-BDT) and the ESC are different in their power source. The Crossfire does not have the room for an AM-BDT, so we are speaking about an ESC. Our early ESC units used an Eaton supercharger combined with three 5 hp electric motors. In 2003 we upgraded to centrifugal units which have greater efficiency. When dealing with a limited amount of HP to drive a supercharger, the less power lost to heat and inefficiencies means greater boost and power available to the engine. Eaton units are 58% efficient, while our newest design is 78% efficient. We also don't run more than 5 psi, as to my knowledge not a single engine in history has blown up at 5 psi. The pressures and stress are just too low. This 5 psi limit plus the higher efficiency of the design has allowed us to use a single 8 hp motor to power the ESC-350, and our larger models -- ESC-550 and ESC-750 use motors that produce up to 26 hp @ 72 volts. The simplified formula for drive power is 3.5 hp per 1,000cc per 5 psi. a 3.2 needs 3.2 x 3.5, or 11.2 hp. The larger units would work great, but require 48-96 volts to make 15+ hp, and are too large for the Crossfire engine bay. So if we consider the ESC-350 with an 8 hp motor, what can we expect? I installed one in a 3000GT with a 3.0 V6, a Diamante 3.5 V6, and an Infinity G35 3.5 V6. All three vehicles gained approx 70 wheel hp @ 3.5-5 psi. Off the line the boost is at 5 psi, and about 4k rpm boost will slowly drop to 3 psi @ 7k rpm on the G35. The G35 dropped 1 full sec off the 1/4 mile running 13.6's. (stock was 14.7) The 3000GT ran 15.6 stock, and 14.1 with the ESC. You guys should see similar gains.
so the system is good for about 10 1/4 mile runs per hour correct?