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klarkkentster
Well-known member
Is whats pictured - salvaged from cutting your tunnel? Any additional added material to strengthen?
##2021 Season Low snow mod update-video##Another (better?) no weld solution for tunnel shortening.
- Thread starter Murph
- Start date
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klarkkentster
Well-known member
Did you also change your front track shock to match the length of the Khaos? My son just finished install IAR and Z-bros shocks all the way around on his 20' Pro. CAn't wait to ride and see the difference between that and my 19' 3". Do you agree with some of the reviews the Khaos geomoetry is easier to throw around? - Or just purely more fun the effort factor is not really measurable?
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klarkkentster
Well-known member
Great idea - curious how much - or if any integrity is lost with cutting and not re-welding. Although I can't imagine the plastic inserts on the MTN tek kit add any type of strength either.
Definitely needs the reinforcement!!! The cooler extrusion creates a box structure to stiffen the tunnel with additional stiffening provided by the flap bracket. Would not try riding without - asking for trouble.
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Yes, snow flap holder endcap removed and reinstalled after tunnel cut. No additional material other than BMFab rear bumper.
Ice age 163" rails. Raptor Khaos conversion kit (longer limiter strap, longer shock eyelet)
The lighter ski pressure does make the sled feel easier to throw around-- it is most noticeable in direction changes in the trees (specifically downhill uturns in the trees)
I would agree with you if I was running the stock rear bumper. I ran this setup in excess of 2,000 miles last season-- including failed re-entrys and other tail landing induced manouever fails. I have ZERO reservations about running this setup in 2021.
With a BM fab bumper you wouldn’t even need the snowflap bracket.
Could leave the extrusions wide open.
If you cut it off at the seat. The post should take some of the stress. The post is pretty strong, way more rigid than these flimsy a-arms.
Great solution for shorting the tunnel with the added benefit of actually improving your cooling capacity. I have a 165 Khaos coming and really want to shorten the tunnel but not loose cooling capacity as I will be running a turbo. Few questions are you using the Bm fab 155 bumper? With the stock cooler no longer being used and ends left open did you have much water/ice build up inside the stock cooler?
Use the 163/165 length BMFab bumper. Install the side plates on full length lunnel and then cut it all at the same time-- that way the bottom taper lines up.
Instead of snow buildup in the middle, there is some on the unheated stock cooler-- still buildup just in a different place. Seems no better/ no worse.
I am both a BMFab and MTNTK dealer if you (or anyone else--U.S. based buyers) is interested.
ZERO rub marks on cooler running a Camo X2.7
Murph. Camo X 2.7?? So an X3 trimmed down right?
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klarkkentster
Well-known member
Would this set up work with a 3” track?
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Yes. The coolers sit even with the stock coolers.
Camo X3 originally intended for a SkiDoo:
16" wide narrowed to 15"
3" paddles trimmed to 2.7
3.0" pitch (I have 3.0"pitch Polaris drivers)
center of track ported for Polaris drivers.
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klarkkentster
Well-known member
Thank you for all your info - Getting ready to do this on my 163 3" - will add a BM fab rear bumper. Are you referring to install the buyer and then cut at the same time as cutting the tunnel? Then did you re-weld the BM Fab bumper?
Still hoping for a before and after weight.
The BM fab bumper referred to has a bolted on grab handle.
The sides are shipped loose.
(Attach then cut, then drill and bolt on grab handle)
