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Discussion Starter · #1 ·
Traced a oil leak on my 720 engine to a crack just below where the cylinder bolts to the case, so I'm tearing it apart and welding/ reinforcing the case.

I was revving to 8,000 rpm, I'm thinking I wanna drop back to 7,500 and readjust the clutching accordingly so I'm thinking I wil advance the cam timing, to shift the power down a few rpm.
I'm running a raptor stage II cam and wondering what folks that take the time to degree them in set them up at ?
 

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I set mine where the hot cams cam card said to set it and it made power to 8800 where I stopped the pull. It was still climbing at that point. I believe we had to retard the cam 5 or 6 degrees to get it to spec on the cam card. When we started the first dyno pulls before changing the timing it was about 8hp lower peak and peaked at 7500.

That was all with a stage three hot cam.
 

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Yeah, it was kind of shocking. Just goes to show how if you spend the time and get things right you can really squeak a bunch of power out of these things. Cam timing is just one small part of a big puzzle.
 
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