Smaller crank pulley found?

JPAYNE722

Active Member
Came across a guy on facebook had a smaller crank pulley made by precision power,anyone heard of these?
 

autobodyX

Active Member
Smaller pulley on super charger bigger on crank. I think you are confused with under drive pulleys
 

JPAYNE722

Active Member
Ya,thats true,but i dont think with just the crank,it will be enough to loss charge and rpm for those,maybe if i had all them done im sure it would
 

justin13703

Active Member
A smaller crank pulley on a supercharged engine will cause you to lose boost. The crank is the drive pulley so it is not the same as replacing a sc pulley. A smaller sc pulley will make more boost. But a smaller crank pulley will make less boost and spin the rest of the accessories slower.
 

justin13703

Active Member
Well shit now that I re read I see that you said that like 5 times lol. Well either way, just remember that it will spin your water pump, alternator, power steering and Ac compressor slower. Making them less effective.
 
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