Supercharger info

[Clive Apps Techno-Logicals 416 510 0020]

> 
> if I run it at same speed (1.25x), would it then be generating (1600/900) x 8 = 
> 14.2psi ?  I gather that there will be some upper limit to what the unit can 
> generate, similar to what the engine can handle.

probably more
the greater retriction will cause more heat so the actual value will be higher
there is also other pulleys available for this unit from TRD and HKS
gives about another 25% boost
> 
> > There is a link to "Toyota Superchargers", where you'll see the SC12
> > is a 1200cc Roots-type blower. The actual boost pressure will depend
> > on the SC displacement, the engine displacement, and the crank vs.
> > supercharger drive ratio. Since this unit makes 8 psi (nominal),
> > feeding a 1.6l engine, driven 1.25x crank speed, you'd need to drive
> > it quite a bit slower to make similar boost on a 900cc engine.
> > (900/1600) * 1.25 =  0.70 times crank speed, for example.

Clive