NAVY

i have ProCharger F1R head units i want to know What size pulley are i using to get 20 psi?
my crank pulley size 7.65"
my engine 383 cid

thanks
navy

NAVY

ttttttttttttttttt

NAVY

any body can hlp me pls ???

venom ws7

iTrader: (13)

Wait for Bob to log in..

NAVY

no one knows how to respond to my question f.....k
where the Engineer in this site ?
where the racer ?
??????????????????????
Did my question in this difficulty ?????

loooool

Bob@BruteSpeed

iTrader: (16)

Hi Navy, I got your pm. Tell Jassim I said "Hi", I haven't talked to him in quite a while.

You're probably going to need a pulley in the 4.25 range, but there are many variables that affect how much boost you'll see. Bob

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.

NAVY

thanks Bob
i will talking with Jassim Tomorrow .

thanks
navy

Bob@BruteSpeed

iTrader: (16)

You're welcome! Bob