270 race tune findings

[DranttelSS]

But they wear out.....fast. Mine lasted @600 miles on a stock Sidewinder.

The Heel Clickers wore out that fast?!

 

[STAIN]

Yes. They started to flatten. I have had this problem with these for quite a few years on the 3 cylinder Yamaha. My stock Nytro and Viper would wear them in @3500 miles. Turbo Viper @1500 miles, Sidewinder @600 miles. I have used these weights since they came out in the early 2000's with good success on everything from ZR's, ZRT's , XCR's, to Apex and Attack etc. with no problems. They grab the belt very hard on the bottom. They are not hard enough for the 3 cylinder four stroke. I even have a CAD program in hopes of finding someone to make a set out of some harder steel, but cant find some to do a small run.
Anyway, I wont be running them on my Sidewinder anymore, I am on to another type of weight.....

 

[fatchance]

Well, i was really digging my set up on the 270R tune.... HH @ 76.9g Lots of mid weight Blue/Black dalton primary 41/37 Daalton w/ black/orange wrapped 6/2. Good backshift, not too hot, very little belt dust, fast as hell with great trail manors until 700+ miles later, at the BOOM! Belt snapped in half at 110 MPH and accelerating. Blew up my Belt guard...ripped it right off the tunnel where it's riveted. Blew out the side panel into my knee. Really left a sour taste in my mouth so i went back to the B/O wrapped at 3/3.
The lake i was running was hard pack but bumpy and i think the skid hopped and the belt just couldn't take it.

What do you experts say here?

 

[Doowithblue]

There isn't a belt made to withstand the thrashing on an all day trail blast. But many belts are still blowing with that long dalton.

 

[fatchance]

You still running the same spring Rob?

 

[Doowithblue]

Red/white seems like a compromise from the tp orange cause I really liked it but gotta run what keeps belts on.

 

[KnappAttack]

Well, i was really digging my set up on the 270R tune.... HH @ 76.9g Lots of mid weight Blue/Black dalton primary 41/37 Daalton w/ black/orange wrapped 6/2. Good backshift, not too hot, very little brake dust, fast as hell with great trail manors until 700+ miles later, at the BOOM! Belt snapped in half at 110 MPH and accelerating. Blew up my Belt guard...ripped it right off the tunnel where it's riveted. Blew out the side panel into my knee. Really left a sour taste in my mouth so i went back to the B/O wrapped at 3/3.
The lake i was running was hard pack but bumpy and i think the skid hopped and the belt just couldn't take it.

What do you experts say here?

Don't beat on it when the going is rough! Its just too much for the belt the take the loading and unloading with all the big power.

 

[fatchance]

Yeah, wasn't really thrashing it Mike, but the lake just hasn't been flat since we got over a foot of snow a couple weeks back. The data logger showed how much the track was spinning off of each little bump. I figured the secondary was trying to backshift and fighting the upshift and something had to give. Figured I'd soften up the secondary a bit while these conditions remain.
Been beautiful trails all week, but they're all stutter bumps now with the weekend traffic.
In big sweeper territory this trip so it's too hard to stay off the flippa!

 

[snowbeast]

Well, i was really digging my set up on the 270R tune.... HH @ 76.9g Lots of mid weight Blue/Black dalton primary 41/37 Daalton w/ black/orange wrapped 6/2. Good backshift, not too hot, very little belt dust, fast as hell with great trail manors until 700+ miles later, at the BOOM! Belt snapped in half at 110 MPH and accelerating. Blew up my Belt guard...ripped it right off the tunnel where it's riveted. Blew out the side panel into my knee. Really left a sour taste in my mouth so i went back to the B/O wrapped at 3/3.
The lake i was running was hard pack but bumpy and i think the skid hopped and the belt just couldn't take it.

What do you experts say here?

Blew mine at same speed 110 on lose snow RR bed,my first blown belt in 2200 miles,but I had Dalton BLK/ORG. Secondary spring wrapped 6-1 and in stock 35 helix,on stm loaded to 80 up front with ulmer pink primary spring 30/90.

 

[fatchance]

^^^^ How many of those miles were you running that combo Pete? Was that on the Hurricane 270 tune or are you still running EVO? I'd say either way you got your money's worth out of that belt!

 

[snowbeast]

^^^^ How many of those miles were you running that combo Pete? Was that on the Hurricane 270 tune or are you still running EVO? I'd say either way you got your money's worth out of that belt!

That combo was only 100 miles,still on evo 4 tune,but the 2200 miles is total on sled,the sled has has two 8jps ran on that milage,so I think that belt had 1500 miles on it,i am not disappointed so far at all,some are blowing 2-5 belts total,but I just had a feeling that set up was not as good as others I have run,and the fact that these sleds are running 250-290 hp and still get 1000 plus miles is awesome.

 

[ClutchMaster]

Yes. They started to flatten. I have had this problem with these for quite a few years on the 3 cylinder Yamaha. My stock Nytro and Viper would wear them in @3500 miles. Turbo Viper @1500 miles, Sidewinder @600 miles. I have used these weights since they came out in the early 2000's with good success on everything from ZR's, ZRT's , XCR's, to Apex and Attack etc. with no problems. They grab the belt very hard on the bottom. They are not hard enough for the 3 cylinder four stroke. I even have a CAD program in hopes of finding someone to make a set out of some harder steel, but cant find some to do a small run.
Anyway, I wont be running them on my Sidewinder anymore, I am on to another type of weight.....

Maybe send a set out and have them case hardened? Worth a try.

 

[Doowithblue]

The only better than stock spring I have never blown a belt with is the cat red/white. This spring will stay in my sled. Works flawlessly. Gates carbon too.

 

[fatchance]

Rob, kitty lists two red/white secondary springs. Are you referring to the titanium spring?

 

[Doowithblue]

No just the regular spring. Another 700kms in quebec and never opened the side panel. And this all with gates carbon! I'm impressed to say the least. And got all my top end back.