speedfreak2685

iTrader: (12)

I am picking up my d1 procharger kit and front mount Saturday. It is going on a full bolt on a custom cam 6 speed and 9 inch camaro. What pully do I need to run to end up with roughly 525 or so to the wheels? 8 or 10 pound pully?

dschmittie1

iTrader: (64)

Is the engine stock? is the exhaust stock?

dschmittie1

iTrader: (64)

The other question is what size crank pulley is the kit coming with?

Need_a_Camaro

iTrader: (27)

Stock cubes I'm assuming?

speedfreak2685

iTrader: (12)

Stock cubes. Not sure the size of crank pully. All I know is it is a 8 rib with ati crank pully/damper. Exhaust is 1 7/8" longtubes into Texas speed true duals.

conan

iTrader: (5)

Need to know what size the crank pully is to choose the head unit pully.

I have a 7.250" crank pully with a 3.7" blower pully making 10-11 #s of boost... 520rwhp, my car was tuned at 5,600 feet/elevation. You should make more power than me if your around sea level.

383camaroz28

iTrader: (22)

I made 525 with a 4.38 pulley at 10-12psi

No Juice

iTrader: (11)

I have the stock 8-rib kit which comes with the 7.65 crank pulley and 4.5 blower pulley. I see about 10psi.

Bob@BruteSpeed

iTrader: (16)

There is no such thing as an 8 or 10 pound pulley, below is why:
How much boost the blower can produce depends on many variables.
* Cubic inch. The larger the engine the less boost it will make with a supercharger.
* Headers and exhaust. A better flowing system will produce less boost, requires a smaller pulley to regain the loss in boost. Ultimately though, more power will be gained.
* Camshaft and heads. A camshaft with some overlap will leak out some boost through the valves. Better flowing heads react a lot like a better flowing exhaust system.
* Altitude. Elevation plays a big part in how much boost is produced. Those people living in the higher elevations have to spin the blower harder to see boost.
* Condition of engine. An engine with real good sealing rings will ultimately produce more boost than one with worn rings.
* Rpm. An engine that is spun up higher in the rpm range will normally produce more boost.

Hopefully this helps. Bob

speedfreak2685

iTrader: (12)

Thanks for the help bob. I will call you when I get the kit and let you know al my specifics and order some stuff. Thanks man

Bob@BruteSpeed

iTrader: (16)

You're welcome, thanks! Bob