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2009 XP Clutching Resolved ??

personally i believe you will be very happy if you buy an xp. i have owned every brand sled. had been on cat for 5 years before buying my xp last year. i was verynervous because i hated the rev chassis. even with the few problems my xp had last year i am selling my 08 to buy an 09. loved it more than my m10000.m8.m7.king kat.800escape. its just a great sled and the 09 will rip
 
Gravy, did your new sled come in yet?? And how does the orange jacket look with the blue sled? :eek:
 
Reasonable minds will tell you that ALL clutching requires a setup......4 what it's worth TRA's are pretty EASY to setup some years are better some years are worse none the less the TRA works well when you add a few parts that enhance the clutching performance to the type of riding YOU DO.

It's no differance with any other hotrod we own when you modify them the should run better.

OT
 
Gravy, did your new sled come in yet?? And how does the orange jacket look with the blue sled? :eek:


It comes with a new coat!!!!



SmurfIceCream.jpg
 
the way the sled came and the unfolding of some failures had a lot of people scrambling to figure out what was a miss in a system that on the books should have rocked better .

after the season was well on its way we had what we would call ,figured out were doo had missed by ,
going by the poor track speed we were seeing compared to the previous years .

the way i put it is 'that there was only one component out of sink .

had they put the correct belt on initally we would have seen a lot less crying but the belt wasnt the main problem
had they gotten the bushing material correct in the spring tower cap correct and again we would have had an easier time to sort out the problem

never found the motor alignment out on more than we would call normal

gearing wasnt to far out but was closer on the 163 than the rest but not the reason for the lack of track speed .

now when you get looking at the track design they used and the duro of rubber used through out the lug height you start to get a glimpse at were the clutching needed to go

let me put it this way . when the lug is as stiff as this one is the tip doesnt bend over and bleed load like a track that was built with a softer duro and the tips of the lug bends bleeding load to the transmission as the track speed raises .

in the process we put on a team secondery to help figure out the woes of the new doo secondery .

we found that we had to do the same thing with the team as we did to the doo secondery to get it to transmit a better track speed than what we got out of it in the end .
no we didnt change the helix but there choice for 09 does leave me scratching my head hahahahah just screams belt sales in the mtns .

as helix angle increases the side belt squeeze diminishes as compared to a shallower helix , up shifts faster but back shifts slower under load .
real curious as to what the primary has in it .soon we will know

doing what we did was easy to fix the isue and we got major track speed gain out of it . not sure why doo took the approach they did for 09 but waiting to see what it works like here in the mtns .

used to be doo posted there high alt specs for clutching in an enviorment other than the low elevation stuff . dont think they do that so openly now .

reason for the new belt compound was to have the belt come to the correct temp for traction in a cab built to pass sound emmissions that means it is a lot hotter under the hood and you need a belt that comes to traction at a higher temp .that is why there a lot harder bely compound .

you drag racers will understand what im saying here .

so what makes the sled fast , ask the owner and its usually his thunb .

in this case it was lack of belt squeeeze in the higher shift point . 40.00 dollar fix
 
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As soon as the snow fly's and becomes consistant for testing Al will have it dialed and probably earlier than most.......AL we've been clipping the lug height slightly to help with the drag (slower) from the track which results in faster track speeds.....In a perfect world if i could buy a 16 - 1"3/4 paddle track with a medium/firm paddle stiffness that would be the ticket.

Getting snow again tonight AL how about you guys ?

Clipping has helped everything you doo if you doo it right adds up :)

OT
 
08 xp

this kinda reminds me when polaris released their 900 in 05 and it had motor problems and then they said they fixed it on the 06 model. Everybody was giving polaris **** and now im gonna give ski-doo ****. Right now the xp's are a tin can full of dog ****.
 
this kinda reminds me when polaris released their 900 in 05 and it had motor problems and then they said they fixed it on the 06 model. Everybody was giving polaris **** and now im gonna give ski-doo ****. Right now the xp's are a tin can full of dog ****.

Keep ridding that Polaris the only thing full of Doggy dew is you.
 
Last year in my 08 I swapped the 42* helix for 40* and added some pin weight and what a difference, with the proper gearing the sled was an animal. Now with my 09 I may have to start all over again, hope it works:confused: I was looking at the belt alignment on my 09 and it appears to look the same as the 08 by the naked eye, a little dog leg is present.:eek:
 
when the primary componnents were in proper clearence then it was the secondery that was letting us down .
secondery spring only has a 300lb finish and needs a bunch more 50lbs to stop the slip in the secondery .
yes you could go to a 40 helix and add weight but a spring was all that was needed .

doo isnt big on there selection of sec springs , and they never have been ,
everytime they changed a track pattern it needs to be looked at .

understand that as track speed increases the traction pach the sec is working with is diminishing and when they introduced the new compund they are using it started to put a much higher load on the transmission .

change to a track with a softer tip and you wont see the track speed drop as we have in this case .

clutching a mountian sled is a balancing act . they were only out of balance in the secondery with doos present choice on the 08's

the 09's will present a much different challange , when i get my hands on one we will see what they were thinking .

09 is supposed to have addressed the poor quality of the spring tower cap bushing in the primary .

this one item is the soul contribuitor to a lot doo owner grief since the introduction of it in 07.
no snow yet but it has showed its self on the tops a bit . 6 weks we figure to a normal start date .

i like the lug height and a novel way of getting it back OT .
i know what you mean and thsi 2.5 lug does really bite in a good way .

have a new project this year and we are trying a different approach to track speed . i have built a sled with a 4 inch track clearance above the lugs and a 10 inch clearance in the front of the tunnel.

it has been our experience in the past in our deep stuff here that we are only able to achieve a track speed based on how much snow we can put through the tunnel ie tunnel and track clearance .
they get full and begin to back up the sysem and limit its speed no matter how much resonable hp applied . turbos discounted haha


see the softer lug bends over and bleeds a lot of load that you now see on your 08 now .
we found that the primary calibration was really close . but had to have a good spring tower cap.

on the flat, cap, clearence is not as crucial as the mtn set up . they dont need the reaction time on a full power back shift in a climb or entering deep stuff from the trail .like we need it .
 
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