Obviously EPI wouldn't reveal this information so I'm wondering if any of you guys had taken the measurements of the helix that comes in the kit? Also curious how heavy the weights are too?? Anyone?

Thanks

Can't help with the helix because he does grind off the numbers, but the weights are 64. Just don't waste your money on on an EPI kit. Been there!!

No, I wouldn't buy the kit after everything I have read but the HO I just bought came with the kit. I figured if I could get the angles of the helix that there would be a chance I could use it w/ some different springs.

Whats wrong with the Erlandson kit? I was going to try their kit on my 600 HO.

The kit won't pull peak RPM's, trust me!! The only way to have this kit pull peak RPM's is to use 62 gram weights instead of the supplied 64 gram weights that come with the kit.

The stock clutching works very well on a properly tuned 600HO. You're not really going to improve on it for trail use. For the first time in history, Polaris got it extremely close. EPI uses a full progressive helix that, IMO, is too aggressive for the trail.

62 Gram weights are perfect. Most people agreed last year that the stock helix was about as good as you could get and if you changed the primary spring and balanced the weights you would make the sled pull 8200 RPM's on a regular basis. It made a huge difference in mine.

What spring did you use?

I ran an almond in mine last year and 62.0gm weights with good results, but the motor was slightly over revving, so an almond/blue would have worked better.

I wasted my money on the Erlandson clutch kit. Like kmiller2 said, you can't pull the rpms. I couldn't get any support help from EPI or Polaris either. While the EPI weights were supposed to be 64 grams they actually weighed 65 grams which only made matters worse. I had to go down to 60 gram weights to pull rpms with EPIs springs and helix. Am going back to stock.

anybody want to sell the epi kit that they bought for a 600.i would give it a try .

I sent you a PM

I did a search for "Erlandson" on this Fusion forum, and there is quite a bit of information on who tried what and who likes/dislikes this or that.

It seems that some people like the EPI kit, while most couldn't get it to work to their satisfaction. I guess that shouldn't suprise me, it seems there is rarely a subject in the snowmobile world that everyone can agree on 100%. There are just too many variables and owner preferences to have a "magic" clutch set-up.

Bottom line, run what you like, and have fun chasing the "perfect" set-up!

Just wondering about all of you that can only swing 62's or less. Are you all running stock timing as well? I was able to run more weight in my Dragon after advancing the timing to about 29.5. Was absolutely the cheapest and most effective mod I made to that sled last year.
Bull

Also, did anyone try the EPI weights with the stock helix and spring?

I trimmed the weights to 62 grams, reset the timing to 29 degrees, and installed 23/42 gears. The sled will pull 8250-8300 on long stretches. I found no reason to change helix or springs. I tried the almond and almond/blue primary spring. While they would work, the 340 finish rate spring built pipe heat faster. Sled pulls a solid 105mph and belt temps dropped 20 degrees or more using the gears.

If you didn't get hooked up on a deal for the Erlandson clutch kit I will sell mine. Actually, the weights were not hardly run at all and I was switching springs around so the components are all in good shape. The sled is in storage right now so I won't be able to get it all together for a month.

The beginning of last year someone posted a good set up. I don't remember his name, but I do remember the parts necessary, it was only a Team grey or silver primary spring that ended up at 344 lbs. It is the only spring with that much poundage at full shift out. The second ingredient was a Team helix with 52/42 and 52/40 degree angles. This helix also has reverse. A friend of mine who no longer rides (body won't let him), tried this set up in his 06 600 H.O. End result was 06 F6's could not even get a sniff of his exhaust. He did not advance his timing because it worked so well. The parts necessary were cheap. Make sure that your weights are 62 grams exactly. The motor spins exactly 8200 RPM. He absolutely had a blast shutting up yappy F6 owners. The looks on AC owners after they got beat was priceless. :banana: Secondary spring is stock, by the way. Hope I have given some of you some insight.

Advance the timing is a must from stock 26 degrees,Polaris knows they made a mistake and needs to be advanced to 28 or 29 degrees.Your RPM won't fall off after that small fix.

This is what I had in mine no timing change(that'll be this yr) anyway it was a solid 4 sleds gained for me w/400 mains stock needle position.

Some guys even went to smaller pilot jets. Sorry but I don't remember which pilots, also some minor carb adjustments were necessary.

140-360 Goodwin purple Primary spring

That spring along with a EPI blue secondary spring work good if: You are Not consistantly pulling 8,200rpm and you haven't bumped the timing.

What primary spring do you recommend after you bump the timing?

The Team primary spring pn is 210135-011 it is silver, the poundage is 165- 344. The helix pn is 420482 it is 50-42ER- 50-40ER it is a fully progressive helix.