Love my MH snow check RMK!

[fullboredragon]

I checked a white 163" RMK, when I got it home I installed 20/46 gearing a par 13:1 head, my old ceramic coated factory pipe, SLP tq stop, and a HPS can. Just got back from my first trip. Couldn't be happier. Sled ran great I was pulling 8300 rpm @ 7000' +/- running the factory springs with one delrin in the secondary and 62 gram (63.2g on scale) 10s series poo weights. I brought my temp gun and checked the clutch temps, After some hard playing in a bowl my secondary clutch was 100F, another guy in the group running a completely stock 155' 15 rmk had a temp of 214F! I am not sure what makes the biggest difference but the set up works for keeping the clutch temps down, and will pay for itself in belts I'm sure!

Climbing on a really long pull I would actually see the rpms climb form 8200 to 8300 rpm, with the warming of the pipe. The other guys were seeing there rpms fade due to hot clutches IMO. I was seeing anywhere from 37mph to 42mph track speed depending snow and grade

Another thing on the last day we were heading up a whooped out trail with lots of hard setup snow and i was passing all the over heated pro's, I only stopped once to wait for my co riders and piled some snow on the tunnel I had hit 159F.

 

[Carlos Randolph]

Same sled but 155"

Like the black tunnel, mine is white. Have only ridden it a few times, but am thinking black would have been a better option. Boot marks and grime show up right away. Considering puling the red stickers off the hood/side panels and going all white and black. Nice ride.....can't wait for real snow.

 

[fullboredragon]

thnx

 

[diamonddave]

Very nice.

Is the only difference in your clutching vs. the other sled that had 214' that you are running a washer?

 

[fullboredragon]

yup a single delrin, I put it between the cup and the spring didn't know I could put it under the cup... His sled was a 155 stock except for a Hps can, mines a 163". Oh one more thing we both have the thunder products Glide washers in our primaries.

 

[edgey]

The derlin might help some I would say the gearing down made the bigger difference in clutch temps if the 155 was stock gearing.

 

[fullboredragon]

I think the tq stop helps, and the ceramic pipe helps keep the under hood temps down and definatly don't hurt. But i attribute most of the reduction to gearing as well. I never even thought of the delrin helping, i installed it for the back shift, but i suppose if it helps reduce slippage it should help keep temps down...

 

[sledneck_03]

Damn i wish they offered these in 2014. I actually wish the assault had a bulk head cooler, its for spring conditions.... Stupid. I would be running a 163 assault lol