For those of with a TPC SC...

How do you control boost in the system? I will be adding a custom intercooler, and wanted to know if the supplied boost valve is adjustable?

Thanks

 

the boost is controlled by the size of the pully. mine also has a pop off valve with the spring set at 6 psi.

 

Thanks Cecil. Is 6psi optimal for the TPC SC if I add an intercooler?

 

you need to talk to Mike about that. my pully is for 5.3psi. with the intercooler you run a denser charge that requires more gas. you may want to up the boost a little.

 

Just remember that the pulley controls the boost, but the altitude and barometric pressure will determine how much pressure you actually get. If you drive up a mountain, you'll have very little boost. I've driven supercharged cars at high altitude that felt like the parasitic losses of the belt-drive friction were grater than the extra power from the supercharger. And if you adjust the pulley to give proper boost at high altitude, you'll risk detonation at sea level. I realize that this is not an issue for those of you near the coast, but I drive anywhere from 4,000 ft to 12,000 ft above sea level which makes superchargers very impractical (this is turbocharger country up here in Denver - or high-compression N/A). Just thought I'd mention this to people similarly situated...

 

Hi Richard,

Yes the car is running like a top. Particulary if I stomp on it in a slow curve