My cylinder, crank, and head arrived at Max Power on April 17th. It might be shipped out this week, I'm a little disapointed to say the least. They seem to have been dragging there feet with my engine, one week there waiting for the rod kit, but everything else is ready to go, the next week there waiting for a piston and everything else is ready to go... 26 days laters... still no motor. Is there no 86mm Wiseco's in North America right now, come on.
The other thing is this, I tell them I want the cylinder ported for more mid to top end power, they tell me you can't get any more power out of this motor... I also wanted them to cut the cylinder head and tighten up the squish but try to leave the compresion the same, they tell me not to because its best left alone, (there is nothing you can really do to the KX 500 motor, it's pretty good the way it is) is what he says. I tell them to copy the port in the old piston (stewarts piston mod) that I sent with, he tells me he wouldn't recomend that, wiseco makes a pretty good piston and they know what they are doing. I have seen a '90 CR 125 piston and the port looks identical but a little smaller of course.
I am not bad mouthing them at all since I haven't got my parts back and inspected them yet. So today when I called to see if the piston arrived yet he said it did. I told him about this guy (no names) getting 20hp over a stock 500 with higher compression and some other modifications and he didn't believe me at all, there is no way you can get that kind of power out of the 500... I am a little disapointed with my dealings with max power. I thought they were into two-strokes, the guy on the phone totally blew me off and told me the tech (that knows these things) was out of town. So I guess my 500 will remain a stocker for another 5 to 10 years...