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Originally Posted by Topless
The enemy is heat... and your right foot.  Keep it off the rev lim. and enjoy the ride. |
in this case, the enemy is the cylinder pressure. the boxster already has a high compression ratio. add to that pressurized induction. now add to that a free exhaust and intake. now add to that an intercooler. all of this translates to way more air, which means way more fuel, which means way higher combustion pressures. you would essentially be burning over 50% more fuel per revolution than the motor was designed to handle. the motor internals are not sized to handle this.
if you replaced the pistons with a low compression variety, you'd probably be okay. with stock compression, you are going to blow a hole in a piston or snap a rod. it doesn't matter if your car has 45,000 miles, 145,000 miles, or zero miles. if it's overloaded, it's going to break. you absolutely are going to blow your motor.
what you need to do is ensure you have the stock intake, stock exhaust manifold, and stock supercharger pulley. contact the manufacturer of the supercharger system; they will verify this.