Turtle64b's Stillen Build Thread

[turtle64b]

Originally Posted by redondoaveb

You went smaller on the jackshaft pulley, sc side?

I haven't seen any issues with vortech high traction pulleys eating belts. The 928 high traction pulley I had destroyed one of my belts but it was a sprayed on coating that was like 80 grit sandpaper.

I recommend the gates k080220rpm belt. I'm using smooth pulleys at almost 17 psi with no belt slip. With the standard k080220 belt I had crazy belt slip with smooth pulleys even at 13 psi.

3.2 jackshaft - 3.2 SC is the stock size

3.15 jackshaft - 3.00 SC is what I have now

The vortech belts don't seem that rough thankfully.

I have an order in for another K080220 belt since the keyway in one of the Vortech pulleys failed and ate the belt, so right now I have a standard? k080220 belt on that is near the end of it's life lol

[redondoaveb]

Originally Posted by turtle64b

3.2 jackshaft - 3.2 SC is the stock size

3.15 jackshaft - 3.00 SC is what I have now

The vortech belts don't seem that rough thankfully.

I have an order in for another K080220 belt since the keyway in one of the Vortech pulleys failed and ate the belt, so right now I have a standard? k080220 belt on that is near the end of it's life lol

Yeah, I know stock pulleys are 3.2/3.2. I was wondering why you went smaller (3.15) instead of larger on the jackshaft.

Have you tried the the rpm belt?

[turtle64b]

Originally Posted by redondoaveb

Yeah, I know stock pulleys are 3.2/3.2. I was wondering why you went smaller (3.15) instead of larger on the jackshaft.

Have you tried the the rpm belt?

I gotcha, my bad. Vortech doesn't offer the high traction in 3.2. 3.15 is the biggest. I have the Vortech bearings in the SC, so I'm not ready to overspin for the moon quite yet haha. Long-term, if I stay supercharged, I want to shift to a bigger blower like the Vortech V-7 JT-B that can spin faster and give more flow. If the SC fails, I'll likely send it to 928 for bearings but keep the Si impeller unless the 928 impeller flows better.

RPM belts are on the way. The last one I had got eaten pretty quickly when the pulley failed.

[redondoaveb]

Originally Posted by turtle64b

I gotcha, my bad. Vortech doesn't offer the high traction in 3.2. 3.15 is the biggest. I have the Vortech bearings in the SC, so I'm not ready to overspin for the moon quite yet haha. Long-term, if I stay supercharged, I want to shift to a bigger blower like the Vortech V-7 JT-B that can spin faster and give more flow. If the SC fails, I'll likely send it to 928 for bearings but keep the Si impeller unless the 928 impeller flows better.

RPM belts are on the way. The last one I had got eaten pretty quickly when the pulley failed.

Now I see what you did. That makes sense. The JT-B is a great choice, that'll be my next upgrade. Keep the Si impeller, I found that the Si brings in boost quicker than the 928.

I've had great luck with the rpm belt. No slipping even with smooth pulleys.