Just curious to hear the results of any ZR500 and Ultra races.

My brother (weighs about 250) has a SPL piped Polaris Ultra SP (680cc) with vforce reeds and my brother-in-law (weighs about 200) has a stock ZR-500 EFI. They each think they will beat the other in a lake race. I know this is an Arctic Cat discussion board, but what do the readers of the board think?

Providing that the Ultra is not clutched backwards..........the poor little kitty doesnt stand a chance

I know that the 96 Ultras were setup like SH!T from the factory. I think they put out 108hp stock. But the ZR5 only puts out 90 something. So I think the ULTRA would probably take it.