Underdrive pullies with a supercharger?

srtthis said:

will it work.. yes... will it make boost... not really. your crank pulley to blower pulley ratio is going to be screwed up.

Junkyard is where id be getting the pulleys

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srtthis said:

big stock crank pulley vs little blower pulley spins the blower faster

small crank pulley vs same blower pulley = spins slower

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Cobra912 said:

huh? It's a seperate belt for my blower, alt and wp have their own and having underdrives on them have no effect on boost. Crank pulley is the one that comes with the blower. Correct me if I don't understand what you are saying

Does the BD11a use only 1 serpentine belt?

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1bad67sbf said:

if its a one serp setup a smaller crank pulley would slow everything down including the blower but if the blower has its own pulley set and belt than it wont matter as long as the blower crank pulley will still bolt to the aftermarket crank pulley on your motor.

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