What Are YOur Opinions on Rotrex Superchargers

[stimpee]

Because it is intercooled. A non-intercooled supercharger/turbo will always experience significant heat soak on track or repeated WOT in warm ambient conditions. Sometimes to the point of having equal/less power than a Non-SC car.

Steve

[SG_M3]

I was talking about the blowers themselves. I know the effects an intercooler has on a kit. I am talking about the effiecency of the rotrex blowr its self, not AA's kit.

[stimpee]

Then the ony difference will be based purely on the efficiency of the compressor itself, which is still TBD until I saw some actual test data with compressor inlet/outlet temps for both units...


Steve

[E30stain]

i think ill go with AA's kit when the time comes... then beast out the car with cams and stuff...

[Highboosted]

Smaller compressors are inharently less efficient. The smaller (faster) the compressor, the more heat produced. A larger compressor spinning slower will make less heat for the same airflow produced. Since compressors don't create boost, they just provide airflow, you can't assume Boyle's Gas laws apply, so the same pressure does NOT equal same temperatures in these cases. Remember that centrifugal compressors are just the compressor section of a turbocharger, so same rules in compressor size selection apply.

If it were my car I'd turbo it, lol.

[GG///M3]

If your going to get a rotrex sc get the c-38 setup. It makes 300whp, and its under 4k.

[Commotion]

we had a M3 come into work with an AA kit and C38 and on standard motor was putting down 580HP at the wheels. that was with 10psi. they superchargers are warranted under rpm not pressure so if you can make more pressure with a particular trim blower and keep under the rpm limit ur right. the smaller the blower the higher the rpm limit. some as high as 120,000 rpm impeller speed!!