MTNTK Releases Tunnel Shortening Kit - worth it?

[Mbalar]

Hay
I want short my 163" tunel and I'm looking for opinions abouth MTNTK Releases Tunnel Shortening Kit
I'm a little bit scary of this plastic parts

Any one use this kit and can tell me is OK?

Thanks

 

[Wreck]

MTNTK makes great products! But...If you want to do a tunnel cut, do it right and have it welded. Out of the three sleds I've seen with this kit they all leaked coolant at some point.

 

[Mbalar]

Thanks for info ?

 

[Lobster Carl]

Get the cr racing kit.

 

[Mbalar]

Get the cr racing kit.

Yes I was thinking about this extra cooling kit but I can't find it in US.

 

[Murph]

Here’s my bombproof MTNTK products tunnel shortening strategy. No welding required. No glue used.

##2021 Season Low snow mod update-video##Another (better?) no weld solution for tunnel shortening.

The x3 and doo track do run hotter on the trails, they chuch snow balls not fluffy snow.

www.snowest.com

 

[Sheetmetalfab]

Yes I was thinking about this extra cooling kit but I can't find it in US.

Just order directly from CR racing canada. Easy process.

 

[Mbalar]

Just order directly from CR racing canada. Easy process.

Ok thanks for info

 

[Minndave13]

I ordered the MTNTK tunnel Shortening kit. I sent it back (Even after I had it powdercoated). Here's why- the plastic pieces are 3D printed and look very thin, the plastic pieces should be made of Aluminum because if there was a problem you could weld them to your coolers. MY research also found that these plastic pieces (or end caps) cause a restriction and is causing snowmobiles to run hotter. If they were made out of aluminum then you could cut off the pieces that go into the existing coolers and weld them directly to the coolers without causing a restriction. The hardest part I found with shortening the tunnel was figuring where to cut the cross piece and cutting it. Pretty much every video I watched on Youtube did not really go into cutting the cross section. I found that part the most tedious. I did install a four foot MTNTK because we want our snowmobiles to run cooler, not hotter!

 

[Canuk]

I bought one. Installed following every detail to the letter. Tripled cleaned everything.

Glue got pushed in and partially filled the plastic holes, restricting coolant flow. I overheated really bad and it also leaked.

Tossed it and welded. Been strong since.

 

[kylant]

I ordered the MTNTK tunnel Shortening kit. I sent it back (Even after I had it powdercoated). Here's why- the plastic pieces are 3D printed and look very thin, the plastic pieces should be made of Aluminum because if there was a problem you could weld them to your coolers. MY research also found that these plastic pieces (or end caps) cause a restriction and is causing snowmobiles to run hotter. If they were made out of aluminum then you could cut off the pieces that go into the existing coolers and weld them directly to the coolers without causing a restriction. The hardest part I found with shortening the tunnel was figuring where to cut the cross piece and cutting it. Pretty much every video I watched on Youtube did not really go into cutting the cross section. I found that part the most tedious. I did install a four foot MTNTK because we want our snowmobiles to run cooler, not hotter!

what cooler did you install? they have a 3 or 5 foot, not a 4. did you keep the factory cooler intact? have you run it? results?

 

[Mbalar]

Hi is taking about this kit - no extra colling kit

 

[klarkkentster]

Get the cr racing kit.

great advice.

 

[Minndave13]

 

[Minndave13]

When I ordered back in September all they had was 4 footers. I put a 5 footer on my 2014 pro. I think the 4 footer will be sufficient especially with the 2018 newer head. And, yes I had the crossover welded back in so I am using the factory cooler with the 4 foot cooler.

 

[slash]

Why are you shortening the tunnel ?
I lengthened mine so the flap wouldn't interfere with the 3.250 track and it runs cooler because more snow is getting cycled into the tunnel.

 

[ullose272]

Why are you shortening the tunnel ?
I lengthened mine so the flap wouldn't interfere with the 3.250 track and it runs cooler because more snow is getting cycled into the tunnel.

Whats a flap?

Sent from my SM-G991U using Tapatalk

 

[slash]

part of your cooling system

 

[Sheetmetalfab]

Stage 2 will be wider running boards and A arms. But it’s part the patented “let’s defeat the purpose of a mtn sled” system.

Fixed it for ya. ?

Sorry slash but a longer tunnel and snowflap is just asking to get stuck.
Over and over. ?

 

[slash]

Whats " stuck" ??