dirkdiggler
Suspended
OK boys I've spent 2 weekends testing clutching Here are my results. First off I have a 2006 Attack. I installed a 136*15*.5 speed track with 200 plus 1.20 t nut style chisels "she hooks like a monster". I have a friend that has a very good running 99 snopro with a 890 psi motor. It makes about 180 HP and is very light "475 Pounds". In 660 he runs 5.9's. his sled is the sled I used as the gage of how each package worked. Here is a list of each package and how they performed against his sled. all the results were on glare Ice on measured 660 tracks.
1. Stock clutching.
With the stock stuff he beat me 8 to 9 lengths depending on the take off.
2. Ulmer racing.
I started out with the trail package and he was beating me by about 5 plus lengths in 660 and pulling hard beond that mark. After a couple runs I checked the clutches. The Secondary was very hot. I decided to switch to a green secondary spring from a silver and I wrapped it a 60 degrees. This was a huge improvement but with the great traction I need a higher engagement. I switched to a Maxx White which has a high preload and bumped the engagement and this helped make it jump out of the hole better. Buy the end of the day I was about 2 sleds behind him and if we continued to lets say 800 plus feet he's be back to the 5 sled lead. I feel there is some potential with this package to Improve with a gearing change an increase in Primary weight mass to load the motor harder with the lower gear ratio. Final full shift RPM's where about 10500 to 10700.
3. Proline
Bolted in the kit and went to work on the track. When we started he was an honest 3 to 4 lengths ahead of me depending on my hole shot. The Proline has a different engagement the The ulmer. It slams in unlike the Ulmer that Rolls in nice an smooth. So it took some time for me to master the take offs. After a couple passes I checked the Primary and secondary for heat. They were both hot but the secondary was much hotter. The Secondary spring Proline uses doesn't have the tines offset 180 like most Yamaha springs. So Setting preload is different. I set it as soft as I could get it made a solo pass and it seemed stronger by feel. I checked the clutches for heat and the secondary was luke warm. The Primary was still hot which I think is a result of a the extra traction combined with stock gearing being a tad Tall. This setup could also use a gear change and a load up on the primary weights. When I got the sled back together we took them out and In 660 he was 1 sled quicker and 3 in 800 plus. Full Shift RPM was 10500. Proline suggest 11000 but It didn't run good with the secondary twisted up. When I had it tighter it ran 11000 but the big end fell off.
I raced a lot of other sleds including some apex rtx's and one Super charged GT. I handed it to the RTX's and beat the SC to the cones. In fairness to the SC he was running trail studs and was spinning like mad at the start. and He went by my a the cones like a freight trail. I raced several F7's. The only ones that beat me used NOS. I also beat up on sever ZR900's which I had huge trouble beating with my RX-1. most of the time I was on the losing end of those races but not today. It was so great beating up on the Kitty cats. They get so pissed.
Conclusion
I've read several posts about the Proline kit being 5 to 10 sled quicker then the Ulmer setup. That's just Flat out untrue. Under this testing" which was controlled" it was no better then 2 sleds and that was in 800 feet. The Funnier part of that was setup as they come from the companys they ran within a sled lenght of each other with the Ulmer setup having better trail manners. Both the Ulmer and Proline would benefit from gearing changes and Primary weight increases. That combined with the changes I already made I might squeeze a sled or 2 out off the Proline. I think I could get even more out of the Ulmer becuase of the way you can load the Super Tip weights they use. The other Nice thing about the Ulmer setup Is the weights can be changed on the lake as well. The Dalton weights in the Proline setup require some Major work to change them which unless you have a nive heated race trailer your not going to want to be drilling rivits out on the lake.
If I was a trail rider and I had good traction I'd use the Ulmer setup. It's very quick out of the whole and it has excellent back-sift corner to corner as I've found this year on the trail. If I was a racer that wasn't a tuner I'd put the Proline in and some chisels and have at it. If I was a Racer that loved to tune I'd get the Ulmer some gears and a Friend to test against and go out to the lake and make it run!!! If you are a trail rider that isn't looking to add traction stick with the stock setup. It's not aggressive out of the hole or on a roll and work's very well in all conditions.
1. Stock clutching.
With the stock stuff he beat me 8 to 9 lengths depending on the take off.
2. Ulmer racing.
I started out with the trail package and he was beating me by about 5 plus lengths in 660 and pulling hard beond that mark. After a couple runs I checked the clutches. The Secondary was very hot. I decided to switch to a green secondary spring from a silver and I wrapped it a 60 degrees. This was a huge improvement but with the great traction I need a higher engagement. I switched to a Maxx White which has a high preload and bumped the engagement and this helped make it jump out of the hole better. Buy the end of the day I was about 2 sleds behind him and if we continued to lets say 800 plus feet he's be back to the 5 sled lead. I feel there is some potential with this package to Improve with a gearing change an increase in Primary weight mass to load the motor harder with the lower gear ratio. Final full shift RPM's where about 10500 to 10700.
3. Proline
Bolted in the kit and went to work on the track. When we started he was an honest 3 to 4 lengths ahead of me depending on my hole shot. The Proline has a different engagement the The ulmer. It slams in unlike the Ulmer that Rolls in nice an smooth. So it took some time for me to master the take offs. After a couple passes I checked the Primary and secondary for heat. They were both hot but the secondary was much hotter. The Secondary spring Proline uses doesn't have the tines offset 180 like most Yamaha springs. So Setting preload is different. I set it as soft as I could get it made a solo pass and it seemed stronger by feel. I checked the clutches for heat and the secondary was luke warm. The Primary was still hot which I think is a result of a the extra traction combined with stock gearing being a tad Tall. This setup could also use a gear change and a load up on the primary weights. When I got the sled back together we took them out and In 660 he was 1 sled quicker and 3 in 800 plus. Full Shift RPM was 10500. Proline suggest 11000 but It didn't run good with the secondary twisted up. When I had it tighter it ran 11000 but the big end fell off.
I raced a lot of other sleds including some apex rtx's and one Super charged GT. I handed it to the RTX's and beat the SC to the cones. In fairness to the SC he was running trail studs and was spinning like mad at the start. and He went by my a the cones like a freight trail. I raced several F7's. The only ones that beat me used NOS. I also beat up on sever ZR900's which I had huge trouble beating with my RX-1. most of the time I was on the losing end of those races but not today. It was so great beating up on the Kitty cats. They get so pissed.
Conclusion
I've read several posts about the Proline kit being 5 to 10 sled quicker then the Ulmer setup. That's just Flat out untrue. Under this testing" which was controlled" it was no better then 2 sleds and that was in 800 feet. The Funnier part of that was setup as they come from the companys they ran within a sled lenght of each other with the Ulmer setup having better trail manners. Both the Ulmer and Proline would benefit from gearing changes and Primary weight increases. That combined with the changes I already made I might squeeze a sled or 2 out off the Proline. I think I could get even more out of the Ulmer becuase of the way you can load the Super Tip weights they use. The other Nice thing about the Ulmer setup Is the weights can be changed on the lake as well. The Dalton weights in the Proline setup require some Major work to change them which unless you have a nive heated race trailer your not going to want to be drilling rivits out on the lake.
If I was a trail rider and I had good traction I'd use the Ulmer setup. It's very quick out of the whole and it has excellent back-sift corner to corner as I've found this year on the trail. If I was a racer that wasn't a tuner I'd put the Proline in and some chisels and have at it. If I was a Racer that loved to tune I'd get the Ulmer some gears and a Friend to test against and go out to the lake and make it run!!! If you are a trail rider that isn't looking to add traction stick with the stock setup. It's not aggressive out of the hole or on a roll and work's very well in all conditions.
