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Allright, I have to break down and post on this subject, but I have been beating my head against the wall on trying to optimize the clutching on my NA 2006 Apex. I have done numerous searches looking for ideas and tips on trying to squeeze any more performance out of this machine without jumping to the big HP adders. I am running into a wall. Hoping you guys and gals can help me in the right direction. here are the specifics to start off...
2006 Apex Mtn. - no reverse
Boss seat, under tunnel exhaust, Holz skid, Floats up front, airbox mod and R&M vent kit.
Elevation of 6000-10000 ft, targeting 8000 ft.
I rode the sled bone stock the first couple of rides and decided it needed some changes, so I made a phone call and spent $300 and got the "trick" setup and I thought I would be in business. Clutching and gearing were bone stock to start.
Put in a 19T top gear, and set up the primary with 89A-10 weights initially with the 13.3 and 10.3 rivets in for a weight of about 54.6 grams.
Spring is yellow-pink-yellow and I have the 14.5 mm rollers installed as well.
Secondary was replaced with a Team TSS-98 with a 58-42-.46 helix and red-black spring.
First ride out on the trail at 6000 ft. and I am pulling 9500 RPM... WTF?
Drilled out the 10.3 rivet, next ride pulling ~10,200 RPM.
Gonna need more when I get up high so I drilled out the 13.3 rivet, now ~10,800 RPM.
Up high the motor bogs terribly and is loaded so hard that it never cleans out and gets beyond 9000-9500 RPMs. If it does spin up that high in perfect snow conditions, it has incredible track speed, but can never acheive that when I really need it, and I cannot get that motor to spin up.
I suspect the secondary is my issue now as I really cant take any more weight out of the primary. That dang secondary gets awfully warm too. Here are the questions I have been pondering...
Why was the primary weight so far off from what should have been a cookie cutter recipe for this setup in my opinion?
Is the secondary really having that much affect? I do suspect this, however I have never really been that good at tuning the Team secondary, and have never really been that impressed with it except for on flat land applications, I only put it on this sled because "that" was the "trick" setup.
What are other guys running for secondarys? I have read a lot about this shockwave helix, but it seems that no one has really experimented with roller secondarys on the four strokes. Was that just a two-stroke fad? I would assume that a roller secondary would offer the same advantages. I also have a Roller Rooster secondary which I have had good luck with on other sleds, and am curious if I should give that a shot.
If anyone can help point me in the right direction, it would be greatly appreciated, because I am tired of throwing good money away. This current setup is not the answer IMO, and needs some help. Any thoughts???
Thanks!
2006 Apex Mtn. - no reverse
Boss seat, under tunnel exhaust, Holz skid, Floats up front, airbox mod and R&M vent kit.
Elevation of 6000-10000 ft, targeting 8000 ft.
I rode the sled bone stock the first couple of rides and decided it needed some changes, so I made a phone call and spent $300 and got the "trick" setup and I thought I would be in business. Clutching and gearing were bone stock to start.
Put in a 19T top gear, and set up the primary with 89A-10 weights initially with the 13.3 and 10.3 rivets in for a weight of about 54.6 grams.
Spring is yellow-pink-yellow and I have the 14.5 mm rollers installed as well.
Secondary was replaced with a Team TSS-98 with a 58-42-.46 helix and red-black spring.
First ride out on the trail at 6000 ft. and I am pulling 9500 RPM... WTF?
Drilled out the 10.3 rivet, next ride pulling ~10,200 RPM.
Gonna need more when I get up high so I drilled out the 13.3 rivet, now ~10,800 RPM.
Up high the motor bogs terribly and is loaded so hard that it never cleans out and gets beyond 9000-9500 RPMs. If it does spin up that high in perfect snow conditions, it has incredible track speed, but can never acheive that when I really need it, and I cannot get that motor to spin up.
I suspect the secondary is my issue now as I really cant take any more weight out of the primary. That dang secondary gets awfully warm too. Here are the questions I have been pondering...
Why was the primary weight so far off from what should have been a cookie cutter recipe for this setup in my opinion?
Is the secondary really having that much affect? I do suspect this, however I have never really been that good at tuning the Team secondary, and have never really been that impressed with it except for on flat land applications, I only put it on this sled because "that" was the "trick" setup.
What are other guys running for secondarys? I have read a lot about this shockwave helix, but it seems that no one has really experimented with roller secondarys on the four strokes. Was that just a two-stroke fad? I would assume that a roller secondary would offer the same advantages. I also have a Roller Rooster secondary which I have had good luck with on other sleds, and am curious if I should give that a shot.
If anyone can help point me in the right direction, it would be greatly appreciated, because I am tired of throwing good money away. This current setup is not the answer IMO, and needs some help. Any thoughts???
Thanks!
