John Scott Posted June 11, 2000 Share Posted June 11, 2000 If anyone is considering a centrif. supercharger thats going to blow over 14 psi, definitely go with the 10 or 12 rib design from the start. Ever since I bumped up my boost with the 8 rib I can't get enough belt traction. ATI claimed my 2.75" pulley was borderline with the 8 rib. Tightening the belt to the snapping point is only giving me short belt life and at $27 a pop, its not worth it! The 12 rib offers 50% more traction than the 8 and you won't need to run as much tension. There are ways to brace the compressor for less slippage, but the smaller pulleys just don't have enough surface area. The cogged belts are really pricey and pretty much race only. Just getting into a good 16 17 psi pull and having it slip back to 10 is worse than a cold shower! JS [This message has been edited by John Scott (edited June 10, 2000).] Quote Link to comment Share on other sites More sharing options...
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