Originally Posted by Maximo

I will bet money a JP modded Nova 28 will not hold top end nearly as strong as people are claiming.... I dont think its possible for the long stroke Nova 28 to really carry great top end....... Novarossi's in general do not hold top end nearly as well as NInja motors do...

Now before anyone jumps all over me, i have to tell ya my very good buddy owns a true X-dyno.... He has dynoed both stock and modded Novarossi's, and now both stock and modded Ninja 28's.. No contest on top end so far, the Ninja 28 will make an easy meal of any 528 on top end..... the Novarossi 28's bore/stroke/rod length are all wrong for high RPM useage......... FYI the AB modded Ninja 28 is still making 1.6 HP at 39 000 RPM..a Novarossi 28 has gone to bed by 35000 RPM...

Anyways if anyone cares to disprove this, i can have your JP mod 528 tested on a X-dyno any time you wish..... Lets see if the JP Modded 528 really is as wild as people think..... IMHO its going to get its ass handed to it by the modded NInja 28 on top end....But that just my specualtion after doing work to several JP modded mills.... the JP Mills i seen had no timing alterations over stock, and unless you do extewnsive timing work a Noiva 528 is not going to have good top end, and even with extensive port work the long stroke works against high RPM useage.....I tell ya guys no other motor has top end like a Ninja 28, and its proving itsef on the X-dyno