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1200 Ski-Doo MCX Turbo

Sheriff said:
A Yamaha clutch is an option as well, we are all very aware of that. I believe that we can get the TRA to work. I have run Polaris clutching on Doo's forever & was never a fan of the TRA, until a couple of years ago I tried one & had amazing success with it. I know there are some issues out there, but all brands have issues. If anyone can figure the TRA out it is Baker, he is an absolute genius with clutching...In my opinion, one of the reasons the Yamaha clutch works so well in the high horsepower sleds is the "Ridgedness" of the engine mounts. You never see any twist when the motor is loaded, therefore the belt is always in perfect alignment. I had a front mount Alpine Apex & I was absolutely shocked at the lack of belt wear...

What did you think of the 1200 in stock form?

BTW no real reason to be so harsh:mad: on the forum, it's christmas:beer; we are just trying to figure **** out on a new ride...
Click to expand...

the 1200 stock rips had mine in the steep & deep and it did better than i thought. the sled is very quiet and the throttle very trigger happy!
the 1200 stock could probably handle a 163 track

did anyone else here ski-doo is thinking about realesing a 1200 with a supercharger?
 
Grover said:
Polar come apart...........again???:rolleyes:

-Grover
Click to expand...

Yup. Actually the inner mobile sheave bushing got turned into fuzzy by some belt kevlar. Took a minute to source all the dust, but that was it. At least nothing is busting anymore. Waiting for a bushing and Polar wants me to try the new fixed post that seats the spider a little lower.

The odd thing is the Comet 109 inner mobile sheave bushing also got real loose on the last ride. I also busted the pink aftermarket spring, but the stock Cat black spring is still OK.

I hate this waiting though. The TRA almost feels good again, as long as I don't hold the engine wide open too long. The kid on the 800 Dragon keeps up to the TRA just fine, so he is happy. When we both take a run at a hill that has lots of snow the 800 Dragon can't pull past, but I have turn out as soon as I start to smell that TRA smoking the belt. The Dragon keeps on going, no problem with that Polaris clutch.

By the way the Comet 109 does not pull as well as the Polar, but it is a little better than the TRA as it does not heat up the belt like that spring loaded TRA.

I don't understand why BRP likes the TRA enough to suffer all the customer problems with the TRA, especially as it reflects poorly on the prospects of the new 1200 motor taking a bite out of the Yamaha Turbo market.
 
You know Yamadoo, if you are smoking a belt on a pull that a dragon will even go up you really dont know much about tuning clutches. If its an XP you need to doo 3 things. And they are all very very basic. Dont overthink it
 
YamaDoo PolCat said:
Yup. Actually the inner mobile sheave bushing got turned into fuzzy by some belt kevlar. Took a minute to source all the dust, but that was it. At least nothing is busting anymore. Waiting for a bushing and Polar wants me to try the new fixed post that seats the spider a little lower.

The odd thing is the Comet 109 inner mobile sheave bushing also got real loose on the last ride. I also busted the pink aftermarket spring, but the stock Cat black spring is still OK.

I hate this waiting though. The TRA almost feels good again, as long as I don't hold the engine wide open too long. The kid on the 800 Dragon keeps up to the TRA just fine, so he is happy. When we both take a run at a hill that has lots of snow the 800 Dragon can't pull past, but I have turn out as soon as I start to smell that TRA smoking the belt. The Dragon keeps on going, no problem with that Polaris clutch.

By the way the Comet 109 does not pull as well as the Polar, but it is a little better than the TRA as it does not heat up the belt like that spring loaded TRA.

I don't understand why BRP likes the TRA enough to suffer all the customer problems with the TRA, especially as it reflects poorly on the prospects of the new 1200 motor taking a bite out of the Yamaha Turbo market.
Click to expand...

Time to let it go dude. I haven't read this thread in about a month and you are still trying to sail the same ship.........we're going to have to start calling you OT #2 - the second generation. You're never going to find an off the shelf sled that works great right out of the box, each brand has their own little tweaks they require.

I guess since Baker, turboal, Big John, winter brew etc have all figured out the TRA and how to make it work they must be just dumb lucky and not actually have the brains to understand how it works.

Hey wait a minute, my TRA works great too......maybe its you.:face-icon-small-dis
 
steveo10 said:
curious as to how accurate these readings are???

bone stock 1200..... 500lbs only 20lbs more than my rev

http://www.dootalk.com/forums/index.php?showtopic=277388
Click to expand...

have you ridden the 1200 yet?
if not you should you like your rev then you will see the difference!
this is not a yamaha I had guys ride mine that ride yamaha and there is a huge difference!
Doo has done it again by taking a 500+ pound sled and making it feel lighter than a rev even though its not you got to ride this sled
 
Sheriff said:
A small setback for this weekend, New Revy Ride date for the 1200 is Jan 15.
Getting a few miles around home to work out the small issues.
Click to expand...

call me or have someone working on the 1200 call me..I have some insight...BJ
 
OK, OK...Finally the results of the 1st mountain ride on the new 1200 XR. Lance rode it for 2 days with no real issues. At 10 lbs boost it had Track speed climbing in the Super Bowl of 138 kmh. Very smooth & predictable power. The hill was pretty tracked up by the end of day & looked like it was ready to be paved... It is comparable if not better than the speed of the MCX Yamaha Nytro at 14lbs. There were several there to compare to. Turned the boost up & kept blowing the hose off of the intercooler. Double clamped it on Saturday & still the same result when the boost was turned up. It sounds as good as it looks & with some more clutching & boost plumbing it will only get better...Fuel mileage was great, used 14 liters over 65 kms on Saturday. More testing when the snow gods come to Revy again.
 
Last edited:
Sheriff said:
OK, OK...Finally the results of the 1st mountain ride on the new 1200 XR. Lance rode it for 2 days with no real issues. At 10 lbs boost it had Track speed climbing in the Super Bowl of 138 kmh. Very smooth & predictable power. The hill was pretty tracked up by the end of day & looked like it was ready to be paved... It is comparable if not better than the speed of the MCX Yamaha Nytro at 14lbs. There were several there to compare to. Turned the boost up & kept blowing the hose off of the intercooler. Double clamped it on Saturday & still the same result when the boost was turned up. It sounds as good as it looks & with some more clutching & boost plumbing it will only get better...Fuel mileage was great, used 14 liters over 65 kms on Saturday. More testing when the snow gods come to Revy again.
Click to expand...

Atta boy Sheriff!

But me being me, I'm curious about the clutching. What doo you mean "more clutching"?

Were the Yamaha Turbo's doing "more clutching"? Or did they ever have to?

I see some on here don't think BRP has a responsibility to produce a "stock out of the box" primary clutch that works great and basicly trouble free, but I disagree.

"Ohhh poor BRP, booohooo.... I'll run your ****ty clutch and won't get mad... booo-hhoohooo.. I'll spend more money .... boohooo!"

HeeHee!

I'm starting to thing BRP has some agreement to level the playing field with the other manufactures by sticking with the TRA which builds in a handicap for SkiDoo sleds.

For those that have never ran anything but the Bouncing Betty, you have to get out more and live a little. Screw around a little, you don't know what you are missing.

Anyway, glad you got the sled out to the hills, just wish BRP had thrown a better clutch on the 1200 instead of leaving you without a runable clutch, again.
 
YamaDoo PolCat said:
Atta boy Sheriff!

But me being me, I'm curious about the clutching. What doo you mean "more clutching"?

Were the Yamaha Turbo's doing "more clutching"? Or did they ever have to?

I see some on here don't think BRP has a responsibility to produce a "stock out of the box" primary clutch that works great and basicly trouble free, but I disagree.

"Ohhh poor BRP, booohooo.... I'll run your ****ty clutch and won't get mad... booo-hhoohooo.. I'll spend more money .... boohooo!"

HeeHee!

I'm starting to thing BRP has some agreement to level the playing field with the other manufactures by sticking with the TRA which builds in a handicap for SkiDoo sleds.

For those that have never ran anything but the Bouncing Betty, you have to get out more and live a little. Screw around a little, you don't know what you are missing.

Anyway, glad you got the sled out to the hills, just wish BRP had thrown a better clutch on the 1200 instead of leaving you without a runable clutch, again.
Click to expand...
When you turbo a sled, there are alot of components that need to be addressed...Chain, drivers,shafts, suspension and so on. The clutch in this case is just something else that has to be addressed. No manufacturer builds there products with big boost in mind...alot of the components that work on the Yamaha's is because they tend to "overbuild" alot of there components, where as Ski-Doo is playing the lightweight card. I am sure that if Doo built a purpose built turbo clutch, it may work as planned. Having said that though, I think Doo is ready for a clutch upgrade, but there is no sense beating a dead horse.:rolleyes:
 
NM said:
When you turbo a sled, there are alot of components that need to be addressed...Chain, drivers,shafts, suspension and so on. The clutch in this case is just something else that has to be addressed. No manufacturer builds there products with big boost in mind...alot of the components that work on the Yamaha's is because they tend to "overbuild" alot of there components, where as Ski-Doo is playing the lightweight card. I am sure that if Doo built a purpose built turbo clutch, it may work as planned. Having said that though, I think Doo is ready for a clutch upgrade, but there is no sense beating a dead horse.:rolleyes:
Click to expand...

Yah, well, BRP doesn't know their TRA is a dead horse unless you tell them. BRP seems to be too proud of that old Model T collector item TRA to update it.

Lots of dyed in the wool BRP types that never rode anything but a TRA, still think riding a dead horse is a great ride, once you get past the smell. And those loyal cowboys really get a whine on when I tell them they are just feeding a dead carcass more expensive oats. It's still just a dead horse no matter what spring they stick in Ol' Clicker's cup.

Come on BRP, you have the technology and computers, lets move on! Ol' Clicker is a dead horse and really starting to stink!
 
YamaDoo PolCat said:
Yah, well, BRP doesn't know their TRA is a dead horse unless you tell them. BRP seems to be too proud of that old Model T collector item TRA to update it.

Lots of dyed in the wool BRP types that never rode anything but a TRA, still think riding a dead horse is a great ride, once you get past the smell. And those loyal cowboys really get a whine on when I tell them they are just feeding a dead carcass more expensive oats. It's still just a dead horse no matter what spring they stick in Ol' Clicker's cup.

Come on BRP, you have the technology and computers, lets move on! Ol' Clicker is a dead horse and really starting to stink!
Click to expand...

"Speaking of Dead Horses"...Not to mention the Stinking...
 
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