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Tunnel protectors

JMAXDOX

Member
Messages
56
Age
52
Location
maine
STILL WAITING FOR SOMEONE TO CHIME IN ON THE DRILLING HOLES IN THEIR HYFAX TUNNEL PROTECTORS FOR EXTRA COOLING. MY DEALER TOLD ME IT WOULD BE A WASTE OF MY TIME. MY BUDDY DID IT TO HIS SLED AND WE ARE RUNNING THE SAME TEMPS ON TRAIL. MINE AREN'T DRILLED YET. AS BROCK SAID, IT CAN'T HURT. ALTHOUGH I'M STARTING TO THINK IT MAY BE A WASTE OF TIME? IF IT WORKED GOOD I'M SURE SOMEONE WOULD HAVE GAVE THE THUMBS UP ON HOW IT HELPED WITH TEMPS BY NOW?
 

Jet800

Member
Messages
98
Age
64
Had one guy drill his and said it made no difference in temps. I also know of at least two guys running the 1.450 studs in the center and not adding the tunnel protectors. Both have several hundred miles on their sleds.
 

Mauiman

New Member
Messages
29
Age
51
Location
Windham nh
Country
USA
Years Snowmobiling
20
Snowmobile
2016 Polaris switchback pro s
I saw a guy post he was running
Garland Mfg Co Slides - UHMW - Black - 15 - 57in 15-5700-0-02-01
But , just want to be sure they work before I order them or is there something better ??? Looks like something can be inserted right down the heat exchange groves
 

Mauiman

New Member
Messages
29
Age
51
Location
Windham nh
Country
USA
Years Snowmobiling
20
Snowmobile
2016 Polaris switchback pro s
Had one guy drill his and said it made no difference in temps. I also know of at least two guys running the 1.450 studs in the center and not adding the tunnel protectors. Both have several hundred miles on their sleds.
I looks like they should work there is over a inch of space past the heat exchanges not sure if further protection is needed
 

trey4x4

New Member
Messages
15
Age
43
Location
Mi
Country
USA
Years Snowmobiling
25
Snowmobile
2017 Assault
I looks like they should work there is over a inch of space past the heat exchanges not sure if further protection is needed


I'm running 1.86 with a 1.75 track two down the center and no extra protection. No issues.
 

trey4x4

New Member
Messages
15
Age
43
Location
Mi
Country
USA
Years Snowmobiling
25
Snowmobile
2017 Assault
What size studs do you have in that track and how many miles have you put on that set up without any tunnel damage?


They are 1.86" tall, track has 300 miles on it and no issues so far. There is a few inches between top of track and the tunnel. I run the track a bit tight, 1/2" slack when track is relaxed.
 

Brock

Well-Known Member
Messages
2,044
Location
Ontario
Country
Canada
Years Snowmobiling
30+
Snowmobile
Polaris
If your running studs over 1.60" in length(eg. 1.630-1.680") in a cobra. USE tunnel protectors!!!!

I know a guy who bottomed out hard while hard trail riding that put gouges and holes in back of tunnel. Riding excessively hard on a new assault. Good thing he only studded middle as heat exchangers are on outside.
 

JMAXDOX

Member
Messages
56
Age
52
Location
maine
If your running studs over 1.60" in length(eg. 1.630-1.680") in a cobra. USE tunnel protectors!!!!

I know a guy who bottomed out hard while hard trail riding that put gouges and holes in back of tunnel. Riding excessively hard on a new assault. Good thing he only studded middle as heat exchangers are on outside.

GOOD INFO RIGHT THERE BROCK. MUCH APPRECIATED!!
 

Jet800

Member
Messages
98
Age
64
How many studs are you guy putting in your assault's? I'm thinking about studing mine down the center only. What model/ part number slide are you using as protectors?
I used 114 Woody's 1.450" . Made my own protectors from slides (same as what you would use for the sled)
 

Brock

Well-Known Member
Messages
2,044
Location
Ontario
Country
Canada
Years Snowmobiling
30+
Snowmobile
Polaris
As jet said .

I would just stud down the middle.
I like the Woody trigger studs as there durable and hook so well .
 

Ottawaair

Member
Messages
69
Age
45
Location
Grand Haven, Mi.
Country
USA
Years Snowmobiling
24
Snowmobile
2017 Polaris Assault
Studding down the middle is all that's needed.
These sleds transfer so good, it'll hook great.
I run 1.5" stud boy power point.
I also used hyfax for protectors.
RMK hyfax cut down to 65" long.
Drilled 1/2" holes every inch.

Not many miles yet, but so far so good.
 

Ike

New Member
Messages
1
Age
47
Location
Ontario
Country
Canada
Years Snowmobiling
16
Snowmobile
2018 550 Adventure 155”
I’m glad I found this site. I just got a ‘18 adventure fan with the 155” x1.6 cobra track. I want to stud it for safety, I would like to put two down the middle every other window. Any ideas or thoughts? And with it being a fan, I should have plenty of space for studs.
 

Mike3577

New Member
Messages
2
Age
41
Location
Auburn hills mi
Country
USA
Years Snowmobiling
30
Snowmobile
2009 yamaha xtx....2019 polaris assault 850
The protectors I installed are from Polaris. They are about 6 inches longer than the rail in the tunnel that they mount on.is this right? They do go all the way down the actual heat exchanger in tunnel but the last six inches are not hooked to the tunnel due to the mounting rail don't run the whole length of the tunnel 2019 assault
 

bobthebilder8070

New Member
Messages
1
Age
52
Location
mi
Country
USA
Years Snowmobiling
40
Snowmobile
2013 polaris assault 800 switchback
I'm not adding any extra. Have the Cobra track and using Woody's 1.450" in the center only. Looks like plenty of clearance. The track lugs will hit the protectors that are on the coolers before the studs hit the tunnel.


View attachment 1419 question , my 2013 assault doesnt have them aluminum rails on it

View attachment 1420
 


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