powerblock clutch

[blastco2]

a couple of years ago, there were a few guys experimenting with it. wondering what has come of it for mountain sleds.


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[LRD]

Do a search on DooTalk forum under short track XP performance section,
XP mtn section and the 4- stroke section.

Personally I have had only PowerBlock primarys since November 2005 on my sleds. Just put a 80 on my wifes 08 XP 600 carb last winter and I have a 8 lb PowerBlock 50 on my 600 carb mod that weighs just a bit less than 360 lbs dry with 141" X 2.25 track, works awesome. I recommend a Shockwave adjustable helix with the PowerBlock, then you have some 30 second adjustability available out on the mtn.

From what I read on the 800's you want a crank with the least amount of runout and you likely will want the ring gear. The PowerBlock's are very durable and super simple, Durability is why so many 4 - stroke guys have gone to them.

Good Luck

PS If you search LRD on the XP mtn section I have about a 20 page thread that covers quite a bit on the PoweBlock also on dootalk

 

[NEWDUCK]

Is a powerblock what came on snowhawks?

 

[blastco2]

don't know, it did come on some of the doo's. a pb50 I think. the 800 needs the pb80.


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[LRD]

The 600 HO SnowHawks had PowerBlock 50's. I bought a takeoff of one of those and put it on my little 600 carb TNT which helped get it down to 360 lbs with a 141 X 2.25 track. The 8 lb PB 50 makes a TRA feel like its trying to spin up in heavy gear lube, very slow. The PB instant throttle response!!! More like a dirt bike!!

 

[NEWDUCK]

Interesting. Seems like thats the first thing to get taken off is those clutches on the hawk. We have one in the shop with the original powerblock. Will be interesting to see how it performs vs a tra