XS 825 shakedown

[snowbeast]

Much better this season Pete. only blew 1 belt so far. 2800kms on my last XS825.

running DTAY weights with 41/37 helix and BO spring. offset 58mm.

having said that, i havent quite beat on it like i did last year in fear of lauching belts! sooo hard to say. 1 more big trip next week in quebec.

how about you?

Ya our last trip this upcoming week,i have not put many miles on this winter,and have changed clutching twice so far,and one more time before the end this year. Would like to get a chance to make some high speed runs,if the lake is in good shape.

 

[number1kyster]

I just ran 50 miles on Max16 on my 2018. Hard trails with 1/2" of powder on them.

Stock Weights
Yamaha Blue/Brown/Blue Primary spring
Stock 35 Helix
Stock Secondary spring wrapped at 60
New XS825 belt

I did 20 miles easy and then I let it eat on a long stretch. 9,050 was the highest I saw on the dash at 16.8lbs of boost. I pulled over and both clutches were warm, but I could hold my hand on both sheaves.

I hope I get to put some more miles on this setup before winter is over. It may rev a bit too high with some more miles on this belt, but we will see. It is a lot of fun to ride!

 

[justinator]

I just ran 50 miles on Max16 on my 2018. Hard trails with 1/2" of powder on them.

Stock Weights
Yamaha Blue/Brown/Blue Primary spring
Stock 35 Helix
Stock Secondary spring wrapped at 60
New XS825 belt

I did 20 miles easy and then I let it eat on a long stretch. 9,050 was the highest I saw on the dash at 16.8lbs of boost. I pulled over and both clutches were warm, but I could hold my hand on both sheaves.

I hope I get to put some more miles on this setup before winter is over. It may rev a bit too high with some more miles on this belt, but we will see. It is a lot of fun to ride!

Mine runs up to 9100 +\-50 rpm on long pull and thats where its staying. You wont find a better setup than your using for your secondary right now for all around riding imo. Ive been doing some testing with razorback belt temp gauge and tried some different springs and wraps and belt stays happiest at stock setting with 35 helix and performance is great. Over 1200 miles now on the xs belt and sheaves are spotless, belt is great. Alot of wheelies, on off throttle and some 25 second full throttle pulls ( according to data log) and all is well. Very happy with this setup.

 

[fourload]

I just ran 50 miles on Max16 on my 2018. Hard trails with 1/2" of powder on them.

Stock Weights
Yamaha Blue/Brown/Blue Primary spring
Stock 35 Helix
Stock Secondary spring wrapped at 60
New XS825 belt

I did 20 miles easy and then I let it eat on a long stretch. 9,050 was the highest I saw on the dash at 16.8lbs of boost. I pulled over and both clutches were warm, but I could hold my hand on both sheaves.

I hope I get to put some more miles on this setup before winter is over. It may rev a bit too high with some more miles on this belt, but we will see. It is a lot of fun to ride!

2 or 3bar MS 16? If you want to lower a few rpms and still use the stock weights try the blue silver blue primary spring. Nice low engagement (2800) and a lower finish number. A 35/39 helix will also drop you some rpm. I run a blue silver blue with the same setup as you except a TP orange sec spring wrapped at 40. Powertrail SM pulls this setup about 8800-8900. I tried a 35/39 but it was a little too much dropping rpms to 86-8700 especially in warmer weather. I am upgrading to MS 16 and will still be using the stock weights next year. They have worked well with the XS 825.

 

[number1kyster]

2 or 3bar MS 16? If you want to lower a few rpms and still use the stock weights try the blue silver blue primary spring. Nice low engagement (2800) and a lower finish number. A 35/39 helix will also drop you some rpm. I run a blue silver blue with the same setup as you except a TP orange sec spring wrapped at 40. Powertrail SM pulls this setup about 8800-8900. I tried a 35/39 but it was a little too much dropping rpms to 86-8700 especially in warmer weather. I am upgrading to MS 16 and will still be using the stock weights next year. They have worked well with the XS 825.

2 bar version

Honestly, I was smitten with my current setup today. I hope to get some more miles on it soon, but right now I don't want to touch a thing.

 

[snowbeast]

2 bar version

Honestly, I was smitten with my current setup today. I hope to get some more miles on it soon, but right now I don't want to touch a thing.

With the TD ms16 2 bar sensor you may never see the full potential of that tune,also if you don't have the TSbov that would be a must as well

2 or 3bar MS 16? If you want to lower a few rpms and still use the stock weights try the blue silver blue primary spring. Nice low engagement (2800) and a lower finish number. A 35/39 helix will also drop you some rpm. I run a blue silver blue with the same setup as you except a TP orange sec spring wrapped at 40. Powertrail SM pulls this setup about 8800-8900. I tried a 35/39 but it was a little too much dropping rpms to 86-8700 especially in warmer weather. I am upgrading to MS 16 and will still be using the stock weights next year. They have worked well with the XS 825.

How is the TP orange being wrapped at 40 working out for you,i may retry it at 50 on stock 35 this week.

 

[snowbeast]

Mine runs up to 9100 +\-50 rpm on long pull and thats where its staying. You wont find a better setup than your using for your secondary right now for all around riding imo. Ive been doing some testing with razorback belt temp gauge and tried some different springs and wraps and belt stays happiest at stock setting with 35 helix and performance is great. Over 1200 miles now on the xs belt and sheaves are spotless, belt is great. Alot of wheelies, on off throttle and some 25 second full throttle pulls ( according to data log) and all is well. Very happy with this setup.

Justin,what have you seen for topend speeds at 25 seconds WO,i would think if any trails were very hard for that long you would see 120 plus easy,speedo or do you also run gps,the main reason i never look at speedo,as i run GPS plugged,and can recall max speed,but i still must watch rpm and pressure.

 

[number1kyster]

Justin,what have you seen for topend speeds at 25 seconds WO,i would think if any trails were very hard for that long you would see 120 plus easy,speedo or do you also run gps,the main reason i never look at speedo,as i run GPS plugged,and can recall max speed,but i still must watch rpm and pressure.

I have the TS BOV. The highest I saw today was 16.6 on the gauge.

And I wasn't paying too much attention to the speedo, but at one point I glanced over and it read 121, and it does not take long to get there.

 

[justinator]

Justin,what have you seen for topend speeds at 25 seconds WO,i would think if any trails were very hard for that long you would see 120 plus easy,speedo or do you also run gps,the main reason i never look at speedo,as i run GPS plugged,and can recall max speed,but i still must watch rpm and pressure.

My sled dont top end very well, its got a 146/ 1.75 track and 24-50 gears. Conditions were kinda mealy and it was at 112 speedo. It accelerates well and then hits a wall. I never checked a gearing calculator to see what it should be doing but Im not a top end guy so Im not too concerned.

 

[justinator]

With the TD ms16 2 bar sensor you may never see the full potential of that tune,also if you don't have the TSbov that would be a must as well
How is the TP orange being wrapped at 40 working out for you,i may retry it at 50 on stock 35 this week.

Ben from TD had mentioned before that the stock blow off was ok with 2 bar sensor because your right at the fine line where stock valve begins to leak. Turbo smart valve is a must to get gains from 3 bar he said. Theres seems to be about 1-1.5 psi less from the 2 bar setup.
I dont have tpi orange but I have dalton black tan which specs out very close to orange according to dalton’s measuring method. I suspect 50 degrees will make alot of heat, the black tan at 40 runs about 16-18 degrees warmer on belt temp gauge than yamaha yellow at 3-3. Cruise rpms are higher at speeds below 60 and throttle response is improved at low speeds. I feel the sled accelerates better with yellow and cruise rpms are lower. I dont know if the tp orange will have same results but I suspect theyll be similiar.......just my .02

 

[snowbeast]

I have the TS BOV. The highest I saw today was 16.6 on the gauge.

And I wasn't paying too much attention to the speedo, but at one point I glanced over and it read 121, and it does not take long to get there.

Get the 3 bar you will see more boost trust me.

 

[snowbeast]

Ben from TD had mentioned before that the stock blow off was ok with 2 bar sensor because your right at the fine line where stock valve begins to leak. Turbo smart valve is a must to get gains from 3 bar he said. Theres seems to be about 1-1.5 psi less from the 2 bar setup.
I dont have tpi orange but I have dalton black tan which specs out very close to orange according to dalton’s measuring method. I suspect 50 degrees will make alot of heat, the black tan at 40 runs about 16-18 degrees warmer on belt temp gauge than yamaha yellow at 3-3. Cruise rpms are higher at speeds below 60 and throttle response is improved at low speeds. I feel the sled accelerates better with yellow and cruise rpms are lower. I dont know if the tp orange will have same results but I suspect theyll be similiar.......just my .02

I now have dalton blk/tan wrapped to 60 on dalton 41/35 but dont like the heat at 60,so i may either try tp orange at 50 or 40 on stock 35 or stock yellow at 60 on stock 35 and hopefully hold the full shift rpms at 9050 to 9100 and see some good top speed runs if lake is anywhere smooth and hard.

 

[number1kyster]

Get the 3 bar you will see more boost trust me.

I'm aware that the 3 bar will allow the sled to read higher. I talked to Ben about it before I had it flashed. I'm happy with it the way it is now, and I'm not planning on changing it.

 

[fourload]

With the TD ms16 2 bar sensor you may never see the full potential of that tune,also if you don't have the TSbov that would be a must as well
How is the TP orange being wrapped at 40 working out for you,i may retry it at 50 on stock 35 this week.

I have used this spring since the sled was almost new. Works great for me @40. Nice clean secondary not much heat and good backshift.