98 mach z stock with all updates done,the sled will have polar shim kit with new head,and v force 3 reeds,just got dyno port trail pipes with canister.Have all the jetting and timing specs with the pipes,just need a little direction on initial clutching.Rpm should be around 8500 to 8600 Thanks in advance.

a friend has a clutch for sale used on a 98 mach z w/ dynos on it. made it a real trail rocket, and still had a good top on it.

Hey Folgers do you have any specs or could you maybe ask your buddy what he had in it??Did he have any problems with set up or pipes running cold??

John, doo you know what spring , ramp's and helix you have in the clutches now?

ill check it out, i dont think he will give uo info on the clutch! you pay 3 to 400 for a good set up! hes a old ski doo oval racer and everything is kept under the sheets.

Mr 670 It has stock 286 ramps,purple-teal spring,beige secondary,54-48 skidoo helix at 16 lbs.The sled is a mule and has had every clutch and gear combo under the sun,and a few different pipes.We have hopped up several and are going to give the dyno ports a try as they seem to give up a little rpm and top hp to keep some torque (on paper anyway)And Folgers as for getting info from tight lipped tech guys one word BEER

John I would start by using the 286 ramps a 200-380 spring, a straight 50 or 52 helix set at 18-20lbs and play with the pin weight to get the rpm you want. Is this a trail sled?

Its sort of a (street-strip) thing,mostly trail ridden(when we have snow) but goes to 5 or 6 radar runs a winter,but only short runs of 1000 or 1320 feet.

John doo you have access to any clutch springs or helix's to test with? The 98 mach z runs 27/43 gears maybe try 26/43.
27/43=1.59:1 thats a lot of gear.
26/43=1.65:1 might work better in the 1000ft run.

Mr 670 I have a whole box full of springs,ramps,gears,chains etc.Id be willing to try any thing(except for what folgers is talking about) just trying to get in the ball park as winters dont seem long enough anymore to try everything in the box again>>Folgers my legs are not a pretty sight..... http://www.snowmobileworld-s2.com/forums/iB_html/non-cgi/emoticons/confused.gif *http://www.snowmobileworld-s2.com/forums/iB_html/non-cgi/emoticons/confused.gif

john breedon, you could start with this setup, prim.- pink/white (230-380), 16.4g-19g, clicker @2or3, and 286 ramps. Sec.- beige, 50-44 or 50-47 cam set @ 18-21lbs. Gearing set @ 24-44 or 25-44. This setup should be good all around, providing hard accelleration and very good top end and still have good backshift for roll-ons.
Hope this helps!

Thanks Limskii, I think I have all of that stuff to try. That primary spring is the same one I used on my old 96 mach z for grass racing.Do you or have you tried a set up like this?? and if so what do you have done to your mach??What is your experience as far as back shifting, is it easier to back shift a big helix or is it easier with heavier primary pins??