Muninsing Clutching report Stock verse Ulmer Racing

[jimmie d]

If it maintains stock engagement than you have the best of both worlds.

Jim

 

[Mighty]

I agree with the last 3 comments. All I can report is what happened. I never rode Jason's sled to tell how different it reacts over mine. Like I said, a side by side comparison is what we did. As his loosens up with miles I'm sure mine will too. The bottom line is I have purchased kits for my 03 and 04 but will not be buying one for my 06.

 

[Mighty]

Out of the hole jump is nice, but if it can't out accelerate during a midrange pull over stock, then it's useless for trail ridng. Nothing to gain.

This is exactly my point!!!

 

[136monoshock]

I agree with the last 3 comments. All I can report is what happened. I never rode Jason's sled to tell how different it reacts over mine. Like I said, a side by side comparison is what we did. As his loosens up with miles I'm sure mine will too. The bottom line is I have purchased kits for my 03 and 04 but will not be buying one for my 06.

I road both the stock clutching and Ulmer setup and the Ulmer setup was 100% spot on for trail use. The stock clutching was lazy.

As far as you Catching Tim and I we ran well over 1000 feet and when we let out I was First, Tim was Second and you were last. You did say you were pulling almost 11000 RPM which would show your sled is more broke in. Clutch kits do not give top end. They make your sled quicker out of the hole and give you consistent throttle every time you hit it. The stock clutching sucked Corner to corner when I had it on my sled on Saturday. I also noticed the slight hesitation out of the hole you talked about with the stock setup. The Ulmer setup hits hard and back-shifts justs as hard.


Dan you can keep the stock clutching if you want. It was obvious on the Lake Saturday that Ulmers setup is stronger. Hell I beat a Turbo to the 660 mark with it.

 

[SRXracer]

I will agree with ya mighty on the comparison to stock. i took some doing on mine, but i seems i have gotten mine 3-5 lengths better than stock. But, all those gains come in the first 60-75'. In a midrange roll-on, i couldn't see a difference compared to stock. When my sled was stock, i was actually pulling a bit also on the clutched sleds. I also don't think 30 miles difference on the sleds is gonna make that big of a difference in the engines being loose, 300 miles, and i will believe there was a difference. Does JT have a different skid or something? What is he talking about that his should hook up so much better? I have said it before and i will say it again, these things run really good stock, and for trail riding, stock set-up is pretty hard to beat. Am i also correct to assume JT, that you said when you went back to stock, you still had the field covered by 3 lengths? So, in reality, you only picked up 3 lengths with the clutching, not the 6 you originally claimed? Not ryhing to throw mud, just making sure i am understanding what i am reading...

 

[136monoshock]

I will agree with ya mighty on the comparison to stock. i took some doing on mine, but i seems i have gotten mine 3-5 lengths better than stock. But, all those gains come in the first 60-75'. In a midrange roll-on, i couldn't see a difference compared to stock. When my sled was stock, i was actually pulling a bit also on the clutched sleds. I also don't think 30 miles difference on the sleds is gonna make that big of a difference in the engines being loose, 300 miles, and i will believe there was a difference. Does JT have a different skid or something? What is he talking about that his should hook up so much better? I have said it before and i will say it again, these things run really good stock, and for trail riding, stock set-up is pretty hard to beat. Am i also correct to assume JT, that you said when you went back to stock, you still had the field covered by 3 lengths? So, in reality, you only picked up 3 lengths with the clutching, not the 6 you originally claimed? Not ryhing to throw mud, just making sure i am understanding what i am reading...

I switched Tracks to a .75 and I'm running 1.080 studs which penetrate .33 the Ripsaws with 1.340 studs are .09. I launched everyone very easily when I had good hard crusty ice.

On my best run of the day I covered the field by 6 sleds but I was still spinning slightly. I am under-reving by about 400 RPM as well. That combined with a great hole shot will give me 2 lengths. That would put me 5 ahead of stock. The stock was really only 2 to 3 better then the others in my sled 3 when I really got the jump. It was Consistent 5 times in a row like that.

It was very clear that Traction and RPM hampered the Ulmer over all result. I could never get it to run the same 5 times in a row because of the traction issues. Like I said my best run of the day came with the Ulmer setup and I hammered the field including that Turbo to 660 which I couldn't believe.

Eric I'm going to call Jason B and give him some better info tomorrow.

 

[SledFreak]

You don't drag race in the trails, so unless you are gaining at 40-50mph for an average speed, then where's the gain. When I clutched my doo, on a 50-60 mph hard acceleration roll on, my 800 would walk away from a stock one for about 5-6 sled lengths right to top end. On the whole shot, it would beat mostly everything that was stock or well setup. If it's a good kit it should do it everywhere except top-end, but top-end should be the same.

 

[SRXracer]

JT - i understand that the traction hampers the overall result of the ulmer setup - as well as any other setup, stock or otherwise! I will not disagree for one second, that there are not big gains to be had IN THE RIGHT CONDITIONS, and maybe small gains in all conditions. But day in and day out, for a trail running sled, stock is pretty damn good, and probably more consistent. Like you said, traction was a major issue and you felt it hampered your results, right? What good is a given setup if it just blows the track out from under you 75% of the time? I saw the same thing, one run you would launch hard, and the next you would just spin.

I remember working with the srx's a few years ago, and when those had clutch kits installed, you could jump another srx by 2 or 3 lengths ANYHWERE in the powerband, from a dead stop or 50 mph roll. And so far, i haven't seen a kit offer those kind or gains over a stocker. That isn't a discredit to the guys making the kits, but a credit to yamaha for finally building a sled that runs well stock!

 

[136monoshock]

JT - i understand that the traction hampers the overall result of the ulmer setup - as well as any other setup, stock or otherwise! I will not disagree for one second, that there are not big gains to be had IN THE RIGHT CONDITIONS, and maybe small gains in all conditions. But day in and day out, for a trail running sled, stock is pretty damn good, and probably more consistent. Like you said, traction was a major issue and you felt it hampered your results, right? What good is a given setup if it just blows the track out from under you 75% of the time? I saw the same thing, one run you would launch hard, and the next you would just spin.

I remember working with the srx's a few years ago, and when those had clutch kits installed, you could jump another srx by 2 or 3 lengths ANYHWERE in the powerband, from a dead stop or 50 mph roll. And so far, i haven't seen a kit offer those kind or gains over a stocker. That isn't a discredit to the guys making the kits, but a credit to yamaha for finally building a sled that runs well stock!

I can only speak for myself and from what my buddy said when he road his sled with Allen's kit in the trail. We both agreed that Corner to Corner Allen's was better and the throttle response was way better then stock. the Up-shift and Back-shift are spot on unlike the stock setup.

By no means do I believe the track is being blown out either. There has been many complaints about the stock clutching for deep snow riding on this site. People complain that it trench's. So the stock clutching has the ability to spin to. Generally clutch kits with High engagement Blow the track out. This setup doesn't have high engagement. It comes out hard because the Super tips Shift much faster then the stock weights. If you upped the engagement and had the quicker shifting weights you would blow the track out.

You don't drag race in the trails, so unless you are gaining at 40-50mph for an average speed, then where's the gain. When I clutched my doo, on a 50-60 mph hard acceleration roll on, my 800 would walk away from a stock one for about 5-6 sled lengths right to top end. On the whole shot, it would beat mostly everything that was stock or well setup. If it's a good kit it should do it everywhere except top-end, but top-end should be the same.

Sleds do not gain top end with clutch kits. If they did it would be 1 to 2 mph at best. I can't speak for you but most times on any sled I've owned when you go from a roll the best you'll see is 1 to 2 lengths. 5 to 6 sounds a little high but I can't speak for your doo.

When I bought Allen's kit I was looking for something that gave me 3 to 5 sleds better out of the hole and was consistent corner to corner. I won't lie in the First 50 miles I was concerned. But when we loaded up on Saturday I had a big smile on my face.

 

[snowbeast]

Wow you guys had alot more testing on race conditions than we did,but all i know is my stock rtx w/or w/out me on it gets beat againest the same sled w/ulmers clutch kit installed in it,now this is 4-6 lengths and stays that way all the way to top speed,and this is in snow trails,trail riding,from corner to corner,enough said.

 

[NOS-PRO]

O.K. my take, I ran with the guys, and just wanted to say that the shorter lug track with longer pics shoots out of the hole, but on the way back, we were side by side, and didn't move. My take is that if you want adjustability, to raise or lower rpm's then a clutch kit works for you. The reason my sled was fast at first was on the nitrous which HOOK-N-BOOK's wife will post soon. Otherwise yes, the short lug, well picked tracks beat me out of the hole. But in the soft snow, I was glad I had the 1 1/4 track.

 

[APEXER1]

I would love to give you guys a run with my 50/40 helix set up on my ER. With the helix and the larger wheels this thing rocks.

But you guys are too farrrrrrr awayyyyyy. :itchy:

 

[MrSled]

My take is this...All the Yamahas at the lake kicked butt...the rest of it who cares....you had fun?? I know I did.

As far as you 136 Mono... jt is not allowed to post so he better go get his butt back to his new baby and quit bragging...K, If I remember correctly, he beats everything he races...LMAO, Thanks

 

[Mighty]

If I remember correctly, he beats everything he races...LMAO, Thanks

Aint that the truth

 

[Superman]

You guys are just lucky I wasn't there! ....Because.....something would have happened.LOL