Has anybody measured how many mm your inlet valve is open at TDC when advantaged to maximum? What kind of valve to piston clearance you have used on it?, thanks for comments.

 

im curious to know myself as i wanted to get some of these cams for my 95mm build. in for comments!

 

Did they FINALLY release these? I was on the waiting list for 3 months when I was building my old motor to test em out. Curious to see what they do

 

Ive seen a few pics of some Ultra B Series cams and they have lots of lift and very aggressive ramps. They by eye seem to be even more aggressive than pro 2 and 3. Not sure if we will ever know for sure how good they are.

 

I was told the Ultra 1 was comparable to a "pro 2.5" so I knew they were going to be serious. I heard they kept breaking and having failures in testing though so not sure what came of it.

 

You dont check piston to valve clearance at TDC.You need to check with two complete cycle on the bench before removing your cylinder head.In my own engine (k series ultra 2 cam)my p2v was 0.090 inch at 8btdc.

 

OH damn, that would have been nice then man! Just sucks with all of the failures because I was surely thinking of some Ultra 2 cams or even 3's for my 95MM build.