Originally Posted by +fireamx
Alright, now correct me if I am wrong, but the way I see it, if the turbo is shoving air into the the mechanical supercharger under 5psi, and the supercharger is capable of producing (let's say) 8 psi. Wouldn't the intake still only be receiving 8psi. How is the performance increased by doing that?
If you pressurize the intake air, you will still get an increase in the blower discharge, there will be some losses due to slightly lower efficiency of the blower, but there will be a definite net gain. This has been done by a few people on the SLK230 engines. The turbo feeds the blower, can't do it the other way around, it doesn't work. Check the crank pulley on the engine, and see if it's smaller then the one on an SLK 32 if it is get a '32 damper wheel, that will give the blower more rev's and the engine more manifold pressure. One of "our" guys put a bigger crank pulley on his 32 along with some other mods and ended up with LOTS more power. Something like 450 at the rear wheels. That puts a lot of strain on the engine and drive train, so be advised this will cost you in the long run. What kind of intercooler are you running? Is it the same as we have?