[color=#000000
ost_uid1]In regards to 15psi yeah thats about the max of a blower.
Stock they put out 7psi and with a smaller pulley around
15psi. *Realistically you don't want any more than that.
Torque works very much inverse to revs. *So if a blower
is running full boost at 1500rpm you have a lot of torque
being applied which is what breaks the gears. *What killed
my boxes was planting the foot at 110km/hr in 5th where
the car will boost straight up to 10psi but is only 3300rpm
so the force placed on the gears to make them move is a
lot more and bang. *Bubbye gearbox. *Turbo's are better
like that cause the start coming in around 3000rpm so the
car is already going along when it comes on boost. *Think
of it like a rolling start. *SC is straight off idle so no rolling
but turbo comes on at 3000 so car is rolling and hence less
resistence in turning the wheels. *Similar even when moving
as turbo's have lag so the power applied is more gradual
than a SC.
regards
Mal[/color
ost_uid1]