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Discussion Starter #1
hello everyone. I'm looking to purchase a bigger pulley for my jrsc to up the boost. Though i can not find out where to purchase one afer hours of searching on here and google. Can anyone be of assistance?? please and thank you.
 

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a smaller pulley on the supercharger INCREASES. a bigger pulley DECREASES.


Its better to have a bigger crank pulley in my opinion.


a machinist shop can take care of you
 

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Meat Popsicle
91 CRX Si
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d16z6 and yes im using the oem crank pully. Would it be wiser to get the titanium crank pull as you did?
Then you probably need a 4-rib 3.2" blower pulley. The crank pulley I had made was aluminum and doesn't have a rubber dampener in it like the stock pulley does so I ended up using a Y8 crank pulley instead.

but i bought my jrsc without the belt.
Bando 4PK1220 is the belt you need
 

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Discussion Starter #9
Then you probably need a 4-rib 3.2" blower pulley. The crank pulley I had made was aluminum and doesn't have a rubber dampener in it like the stock pulley does so I ended up using a Y8 crank pulley instead.



Bando 4PK1220 is the belt you need
ok so im then im good with my crank pulley thats good to know. now i see most pulley range in boost. most say 9-12lbs of boost the 4rib 3.2 falls into that category? and i can purchase the belt anywhere(auto zone, advance auto, etc)??
 

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Meat Popsicle
91 CRX Si
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2,939 Posts
ok so im then im good with my crank pulley thats good to know. now i see most pulley range in boost. most say 9-12lbs of boost the 4rib 3.2 falls into that category? and i can purchase the belt anywhere(auto zone, advance auto, etc)??
Belt cross reference list.

4PK is the 4-rib belt which is what you need.

Code:
Bando   Jobber Dayco    Gates   Goodyear
4PK1220 480K5  5040478  K040476 4040476
3PK1220 480K3  5030480  K030480 4030480
The 3.4" should give you 8-10 lbs of boost.
 

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Discussion Starter #11
Belt cross reference list.

4PK is the 4-rib belt which is what you need.

Code:
Bando   Jobber Dayco    Gates   Goodyear
4PK1220 480K5  5040478  K040476 4040476
3PK1220 480K3  5030480  K030480 4030480
The 3.4" should give you 8-10 lbs of boost.
what pulley would give me 10-12lbs?
 
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