163" VS. 155" Tunnel Coolers

[Pownar]

Does the 163" have more cooler length in the tunnel than the 155"? If so does the 163" stay a little cooler getting to the pow?

 

[liberty]

I think the overall length of the sled is like 5" longer, so it makes sense that the tunnel and coolers are that much longer. Never thought about that aspect of the cooling system, but the extra length does probably help. I have a '13 163" Pro and have never had a over heating problem. You do have to be good about using the scratchers, but they really do work and that's why Polaris puts them on the sleds. My sled stays at 125°-132° in any condition using the scratchers.
BTW, if you're contemplating a new sled and don't know which to get, the 163"is the way to go. I can do doughnuts all day long, do downhill 180° turns, ride through the tightest trees, and pull steep hills with deep fresh snow from a dead stop. This sled is unstoppable and super fun to ride. Like I said 163 all the way!

 

[Rick!]

The tail of the 163 will be higher than the 155 so the longer coolers may or may not cool as well as a155. I seem to run 1 scratcher down more than my155's but it's not a big deal.

 

[polaris girl]

coooler

I have a 155 as long as I'm on the trail Ihave to run scratchers.I also put on a longer snow flap that helps alot. I'm 230 & don't have any problems with that track length. why turn a 163 when 155 will go any where& do anything I want. JMO.

 

[meathooker]

My stock 600 155" was running 15-20 deg warmer thn my dads stock 800 163" on the trail this weekend up 8 miles of super hard packed groomed trail. It seemed weird at the time but it makes sense if there's 10" more cooler.

 

[Pownar]

That what i'm thinking... 5" longer= 10" more cooler length, Or do they stop at the same spot and it's just 5" more tunnel?

 

[rmscustom]

The 163 holds more coolant than the 155. It's in the specs of the owner manual.