only example I can give ya is off my own personal set up from the 2003 Ohio state snowmobile drag series. Class was stock 700 in this series,(not 700 stock isr pro class.) This class meant no cool downs allowed and had to keep trail track and studs only,no exh./engine mods.
I used a stock brand new left over 2002 srx out of the crate, I put 32 miles on it... all on the grass!!( thats how many 500ft runs i made testing!) set up with 168 mega bite trail studs in stock track-center belt only, h/c clutching set up, jetted down with stock airbox, lots of rear suspension set up time, 93 sunoco premium fuel.
I did quite well with this set up, the sled was originally set up with 20/40 gearing and raced for the first couple times but it never would not spin the track out of the gate, it always roosted for the 1st 50-75ft.(needed more studs but was not allowed) and this causes a overshift in the clutchs when the track catches back up to the ground,so I worked on suspension to no aval. trying to get rid of this.
Sled still worked well and I won fairly easily first few times out with it with no problems,then... about the 3rd race of the series the new firescraps started to catch me in the 3/4 track area and I was only beating them sometimes by tip of a ski loop. Obviously they had been testing between races trying to beat the only srx in the series. So, I then swapped in a 21 tooth top gear and readjusted the chain tension to a tad bit looser tension getting the track to roll easier.
upon testing,and some minor suspension tweaking, the sled didnt spin the track anymore on the start, it simply took off and got great traction in the test field. Next race came and it had been raining alot before the day of race. Went to the race and I got the crappy lane with a puddle of water right on the start line. I figured I was gonna roost mud and spin and overshift the clutch, lose this race for sure. Much to my suprise and everyone elses the sled bit in and won, to boot.... I regained the comfortable lead I had in the earlier races because the sled didnt lose time spinning and it just moved forward,giving me the holeshot and giving the srx the win for the rest of series.
( I got lucky that day in that lane it was hard ground and just water laying on surface...lol)
you can play a little but not alot in 500ft with gears and do good, but this requires, testing,testing,timers and more relentless testing and note taking,more testing. Did I mention you have to test alot to find out what works good....lol
