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Old 11-01-2018, 05:43 PM   #329 (permalink)
cupcakez
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Quote:
Originally Posted by redondoaveb View Post
On the supercharger side if you change pulley sizes the only thing you might have to change is the idler pulley size, not belt size. I have the 3.47 jackshaft pulley with the 3.00 sc pulley. I'm using the 2.50 idler pulley. If I went to the 2.85 sc pulley with the 3.47 jackshaft I'd probably change the idler to a 3.00.
Okay.

So what I'm getting from this information is:
Total area the belt surrounds with your current setup of:
- 3.47 Jackshaft SC sided pulley
- 3.00 Direct SC Blower pulley
- 2.50 SC Idler pulley
---------------------------------------------
Total: 8.97" inches of area that the pulleys are using up from the belt and it seems to work fine.

Then you said if you changed the 3.0" down to a 2.85" Direct SC Blower pulley, to compensate for the loss in size, you have to change another pulley and that pulley of choice would be your idler size -- and to upgrade it in size at that which you said a 3.00" idler pulley would do it.

This would give you a total of 9.32" inches of area that the pulleys would use up as opposed to your previous setup of 8.97".

I assume the idler pulley could be adjusted to compensate for the difference of .35" of area between the two setups?
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