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It sounds to me like it is asking for less helix angle and/or more secondary spring rate for more belt clamping force. My guess is the secondary angle is too steep and it is loading the primary beyond what it is capable of pulling. Blowing up the belt is a definite sign of slippage which is...

If you have a breather in the turbo oil return reservoir it seems to me the pump could have the opportunity to pull air versus oil. Air will always win the race to the pump under suction over the oil. I would try disconnecting the breather from your tank under the turbo and also make sure the...

Time to get the felt tip pen out and mark the primary sheave! Sounds like it is asking for more weight or less helix angle

Turbo oil return pump option. I used a belt driven Mechanical pump from Johnson High Tech Performance. It required building a trick little bracket and a drive mandrel off the end of the crankshaft similar to a supercharger drive but it works flawlessly. Here is a link to their site...

Nytro Hesitation I would adjust the CO slightly and see if that helps. I built a custom header and slip on muffler on my 08 MTX and it started hesitating. Lean condition I assumed so I began fiddling with the CO settings and got rid of it. I can't remember where I ended up but I think it...