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Info about pistons has been duly noted ........ you would think wiseco would forge there pistons .002 smaller, i dont think your going to meet a steel sleeve 99-03 xcr lol

when did jordan race? what years? csra?

I don't remember exactly when he started 98-09 I think. NOT snowcross lol...COSDRA - drag racing. We were a factory Team for most of it...and he was fast as eff. I was just the sled cleaner...

As far as Wiseco's go in a sled I still don't see the need....especially on the trail.

what about a lake a few times a year , f7 is for the trails.

i was curious about jordan because my my old neighbor Mike Morrow was sponsored by Yamaha to race CSRA, he had a 3 year contract but only raced 2 years , then went back to cat, in 01. in 02 i watched him win pro open on a stock sled in Quebec, , , i think 99 -00 he was riding for Yamaha, he didnt do that well for them, he did manage to race the X games, on a Yamaha, That was ballin'

http://espn.go.com/extreme/winterx00/s/ ... s0204.html he placed 21st

One of the first sleds that got Jordan into racing was Mike's backup sx600r...he got it when Mike went to cat I think. I was at school back then so I'm not 100% on my facts....but I do know that it came with 25 stitched on the seat and Jordan has been #25 ever since lol. Small world.

F7 - stick with OEM. As close to bullet proof as you will find for sled motors.

In my experience SPI/SPX will work just fine for your everyday sleds even performance ones, and will live up to mild mods. Wicecos usually get there bad name because either the old time home mechanic or the your old school machinist think they're smarter than the engineers that designed them, and don't give the proper clearances (approx double of a cast).

that was one of mikes old sleds for sure.. did it come with sno pro bars? lol he always rode cat but switched to yami for a couple years, they were the only factory that would sponsor him, i remember the rear shock in his mod looked like it belonged in a car it was huge those were some potent yammies

you cant adjust clearence in a nikasil bore does wiseco compensate for that??

they better be good oem @$200 each piston. lol im going oem in the f7 if i need to replace the pistons, and maby seiseco in the xcr, iv read they wake the xcr up and make a noticeable differenct in throttle responce , so i might give them a go. . im not going to ride this sled often only when someone with a newer 800 needs to shut up and get beat by a 99. xc chassis. the f7 will be my daily driver. its in pretty good shape i have it stripped now waiting for a couple more parts then it can go back together .. im looking for a new/used Y-pipe for it preferably D&D. and a single light pipe.

Boomer, have you ran both sleds? i would not be suprised if the cat was faster than the polaris