Slide Technology

[lvr1000]

Most Mfr make their "slides" out of UHMW-PE. This material ranges from 1.2 ppm to 4 ppm and can only be ram extruded.. Life is based on p/v, and on a sled with a tight track, greatly increases the p and when you have a lot of v, the material gets soft and cold flows. This material melts at under 165F. Virgin material will turn translucent when it melts and will retain its shape unless external factor makes it change.

Look at the "shot marks" on your slides. For the same size profile, the closer the "shot marks" are, the denser (more ppm) the material and better the p/v value. On most slides, the marks are 1/2" to 1".

If it's screw extruded, no shot marks and NOT UHMW-PE, much less p/v value

 

[mjkaliszak]

Lvr1000 what is p/v ?

 

[indy_500]

i'm on my 3rd set of slides on my 99 indy 500 with 7000 miles. sounds like a lot but when you see some of the stuff i ride on you'd laugh and say "that's a trail?" or "how can you open that?" i've ridden on open trails that have plowed fields that don't even have 1/2 of an inch of snow on them. bumpy plowed fields. and lots of roads. overall i guess 3 sets of slides for 7000 miles is pretty good for me when you look at what i ride on. i do replace my slides about every year. i rode my sled for a half a year after i bought it and put 2000 miles on it. then it had about 4000 miles on it totally in the spring on the original slides. i changed them and put on red graphite ones. i put on over 3000 miles last year and replaced them again. now there's over 7000 miles on the sled and i put on a 3rd set of slides earlier this spring after the snow was gone. i went with red graphite again. the original do last longer but i could've gotten another half year out of my 2nd set but I didn't want to replace them in the middle of winter so i replaced them. i also broke the suspension in an older sled and took some bogie wheels from it and added them to my skid on my 99 indy 500. so hopefully that'll help a lot so i can ride for 2 years on a pair. even though the sled will probably be gone in 2 years

 

[polarisrider1]

indy 500, your the man. thank you for the truth. p.s. I am keeping the switch.

 

[indy_500]

 

[lvr1000]

Sorry mjkaliszak, I was out of town for the weekend.

P= pressure (between your clips and slides). Track tension will be a factor. V= velocity (how fast the clips are sliding on the slides) The faster the sled speed, greater the velocity. The P/V value can be increased by lubrication, like snow. This helps to cool the UHMW-PE (Ultra high molecular weight polyethylene)

 

[doo_dr]

polarisrider1 Thanks for the comp. I have run the list of snowmobile uses. From every form of racing (dirt, snowX, drag, speed runs,water,and asphalt) to trail and mountain riding. I have watched alot of "New Technology" come and go. I find the most interesting part is that people like to bolt things on for performance rather than making what they have more efficient. Stock sleds can be "trued up" to run so much more efficient. Better than a $300 clutch kit. I have a summit 156 that requires less than 4lbs of pull to turn the track (stock)! For those in doubt ask Carter. My trail sled is the same and it does not have anti-rachet drivers.
I'm not talking about brain surgery. Carbs that are in tune, clean and straight clutching, Belt deflection, clean and adjusted chain case and gears, skid frame alignment, track alignment and tension, etc... When all of these are good to go, products like reeds, ceramic coating, plug indexing, and clutching really show there worth.