[Build Thread] -- Journey to 700+ WHP [Supercharger]

[redondoaveb]

Originally Posted by cupcakez

Since I blew up my belt.

I purchased this belt:
K080220

as a replacement.

This belt will be good enough to fit 3.0" jackshaft SC, 3.47" pulleys?

What belt part number do you have to fit your current 3.0 and 3.47 setup? assuming i had spacers too

That's the correct belt, it works fine with with the 3.47 jackshaft and 3.00 sc pulley. The spacer has nothing to do with belt length. Gates does also make a heavier duty belt. The part number is K080220RPM. It's specifically made for forced induction.

[cupcakez]

Originally Posted by redondoaveb

That's the correct belt, it works fine with with the 3.47 jackshaft and 3.00 sc pulley. The spacer has nothing to do with belt length. Gates does also make a heavier duty belt. The part number is K080220RPM. It's specifically made for forced induction.

Oh I saw that one too. The K080220 I just didn't know if that was better or worse than the one that I ordered.

Maybe I'll order that one too just for kicks. I mean can never have too many belts right? Haha. I'll thank myself later if I ordered extra belts!

#F.I.Life

Sweet. Cuz I was told by someone on the forum that if I went different pulley sizes I would need a different belt size which was tripping me up cause there's so many options for belt sizes out there T_T

G'thing you shared this information with me.

I appreciate that bro!

[redondoaveb]

Originally Posted by cupcakez

Oh I saw that one too. The K080220 I just didn't know if that was better or worse than the one that I ordered.

Maybe I'll order that one too just for kicks. I mean can never have too many belts right? Haha. I'll thank myself later if I ordered extra belts!

#F.I.Life

Sweet. Cuz I was told by someone on the forum that if I went different pulley sizes I would need a different belt size which was tripping me up cause there's so many options for belt sizes out there T_T

G'thing you shared this information with me.

I appreciate that bro!

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.

[cupcakez]

Originally Posted by redondoaveb

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?

[redondoaveb]

Originally Posted by cupcakez

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?

Yes, the Stillen bracket has a tension adjuster for the idler pulley.

[cupcakez]

Originally Posted by redondoaveb

Yes, the Stillen bracket has a tension adjuster for the idler pulley.

Okay cool I thought it did just wanted to make sure.

That makes it all the more easier for us instead of finding exact sizes to compensate for pulley sizes lol.

Thank goodness for whoever invented self tensioners for the serp side main belt and the SC belt lol

[redondoaveb]

Originally Posted by cupcakez

Okay cool I thought it did just wanted to make sure.

That makes it all the more easier for us instead of finding exact sizes to compensate for pulley sizes lol.

Thank goodness for whoever invented self tensioners for the serp side main belt and the SC belt lol

The supercharger side is a manual tensioner, not a self tensioner.