N2DEEP Posted September 10, 2012 Report Share Posted September 10, 2012 I did not like the way it ran with the lower port timing at all. Quote Link to comment Share on other sites More sharing options...
stroking Posted September 10, 2012 Report Share Posted September 10, 2012 I did not like the way it ran with the lower port timing at all. [/quo Well mines at 199 ex 132trans ....... trying to get it down to 197/130 and hoping the wsm will do it, based on the pipe maker im your thats where it "suppose" to be Quote Link to comment Share on other sites More sharing options...
N2DEEP Posted September 11, 2012 Report Share Posted September 11, 2012 I see your ex ports we're takin out to much. Lol I would just buy new cylinders! Quote Link to comment Share on other sites More sharing options...
camatv Posted September 11, 2012 Report Share Posted September 11, 2012 sounds to me like the wsm with the differnt pin height and banshee dome profile are the big bore stroker 68mm banshee pistons.. blaster pistons are just that blaster pistons... they have the blaster dome profile and the differnt pin height due to it being a blaster... any piston with a too much piston to wall clearance will break skirts and have issues. since the cubs mostly come as cast and plated for maybe running with wiseco pistons ( as thats whats spec'd at CP INd) i would say using a differnt brand, tolerance piston without changing the wall clearance will most likely result in a failure. in all reality if your running a CUB or other previously plated cylinder a correct piston to wall clearance is very necessary.. im sure if you droped in pro-x cast pistons in it it may have the same issues.. but you'd have to measure it..... thats basic engine building techniques... Quote Link to comment Share on other sites More sharing options...
N2DEEP Posted September 11, 2012 Report Share Posted September 11, 2012 You are very correct but what I have been telling everyone is passion racing set the motor up new and he is the one of the builders that use wsm. Everything should have been correct! Only thing we could find that could have caused it is how wide he ported the exhaust and caused a little piston slap. The wsm could not hold up to it. Quote Link to comment Share on other sites More sharing options...
stroking Posted September 12, 2012 Report Share Posted September 12, 2012 You are very correct but what I have been telling everyone is passion racing set the motor up new and he is the one of the builders that use wsm. Everything should have been correct! Only thing we could find that could have caused it is how wide he ported the exhaust and caused a little piston slap. The wsm could not hold up to it. damn Quote Link to comment Share on other sites More sharing options...
stroking Posted September 20, 2012 Report Share Posted September 20, 2012 what about 795 series piston ? i don t hear much about anyone using them ? Quote Link to comment Share on other sites More sharing options...
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