Supercharger guys, what do you think about sand blasting pulleys?
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This man is speaking the truth!
Seriously, I replaced the original Vortech belt with a Gates, one step shorter, and I haven't heard a squeal ever again since then! Also, belt dust is MUCH less in my engine bay.
As a comparison with the original belt, I've got half as much dust in the 1000 miles I've done with the Gates belt as I had with the original belt in the 50 miles I did between installation and tuning it.
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So the sand blasting went really well. My friends dad did it and we started with Walnut chips at first but ended up using aluminum oxide. The pulley has a nice rough feel to it and I'm sure it will grip really well! I'm going to do my power steering pulley next to hopefully get rid of my belt squeal.
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stay with the stock 32/28 cog setup, install the 2.87 serp " sand blast the ribs on the 2.87 pulley " install the timrod pulley kit and you will yield the best results. prepare yourself though! you will be making alot more boost. i was hitting 14 psi at 6600 rpm with the sc-trim. my boost comes in a little quicker with the Si-trim but max boost is about the same. i am also at 2100 ft above sea level so you may see a little more boost pressure.
I want to run the timrod setup (#2 picture). From the looks of it, the new belt setup I think would work best for me being that I already have the GTM mod. I'm still getting that chirp at my power steering pulley. I sure this new setup will solve that.
As far as the pulley kit goes, isn't it just a matter of rerouting the belts? Or is there something that I am missing?
Also, can I run my stock vortech belt or do I need a different size?
Last edited by Synjn; 04-15-2010 at 01:25 AM.
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