GotJuice
Expert
I currently run a Hauck pipe on an Apex Mnt. and I want to convert this pipe to dump into the tunnel by cutting off the two upper cans and allowing it to dump in the tunnel similar to an Excell pipe. NOW, my concern is how much ice build up this will create ? Is it worse having an exhaust dumping in the tunnel or exiting out the back . With it exiting in the stock location I still get heat under the tunnel from the pipe being exposed but not sure how much ice I really get built up ? I'm sure the heat will increase a lot by dumping the exhaust in the tunnel and I don't wanna do this if I'm going to gain 20 lbs of ice every ride . Input would be highly appreciated! Once I cut the pipe off and do the mods I'm going to do I can't take it back so I'd like to be certain before doing it.
Tork
TY 4 Stroke God
might be a mention of that here http://www.ty4stroke.com/viewtopic.php?t=50242
GotJuice
Expert
didn't see the under tunnekl exhaust mentioned?
I read th thread but didn't see anyone mention an under tunnel exhaust comparison, meaning does it make it better then it already is or worse? I know a lot of guys run the Excell under tunnel version and Katches runs a home made version but can't tell if they have ice build up problems ?
>>>Tork said:
I read th thread but didn't see anyone mention an under tunnel exhaust comparison, meaning does it make it better then it already is or worse? I know a lot of guys run the Excell under tunnel version and Katches runs a home made version but can't tell if they have ice build up problems ?
Mtn-Track
Extreme
I have under tunnel exhaust on my '07 Mtn Vector (twin stacks off the bottom of the OEM muffler). The answer to your question is yes and no. It depends how you ride.
It does add more ice to the rear tunnel of the sled if you do lots of starts and stops in powder. You stop and the snow starts to melt, take off and it freezes into ice. Do this lots of times and it builds up, TO A POINT. But if you stop again for a few minutes and let it idle the ice starts to melt again, then just bump the tunnel and most of it drops off. If you just keep riding hard, then its doesn't seem to be any different than the OEM set up. Not really a big deal, but you need to make sure that if you thump the tunnel to drop off a big chunk that you don't leave it on top of the track!
It does add more ice to the rear tunnel of the sled if you do lots of starts and stops in powder. You stop and the snow starts to melt, take off and it freezes into ice. Do this lots of times and it builds up, TO A POINT. But if you stop again for a few minutes and let it idle the ice starts to melt again, then just bump the tunnel and most of it drops off. If you just keep riding hard, then its doesn't seem to be any different than the OEM set up. Not really a big deal, but you need to make sure that if you thump the tunnel to drop off a big chunk that you don't leave it on top of the track!
GotJuice
Expert
thanks! I appreciate the info!
Great that makes sense I suppose, anyone else with experience similar to this ?
Great that makes sense I suppose, anyone else with experience similar to this ?
Mtn-Track
Extreme
I'll clarify the last part of my statement a little better about running hard and not much difference than OEM.........
It's not that running hard knocks off big chunks of ice, but the way I have my exhaust exit under the muffler it seems to dissipate the heat differently while moving. I think the snow comming forward from the track keeps the heat from melting the snow under the back of the tunnel, thus very little ice. As a result, I typically don't have ANY ice build up on the tunnel forward of the drop brackets on the inside or outside. However, when I stop for a while at idle, the exhaust starts to come out the back between the brackets and flap. That's when I get the snow starting to melt and ice forms.......
I should also point out that I don't have any cooling issues and don't get gassed with exhaust while riding (at least not by my sled).
It's not that running hard knocks off big chunks of ice, but the way I have my exhaust exit under the muffler it seems to dissipate the heat differently while moving. I think the snow comming forward from the track keeps the heat from melting the snow under the back of the tunnel, thus very little ice. As a result, I typically don't have ANY ice build up on the tunnel forward of the drop brackets on the inside or outside. However, when I stop for a while at idle, the exhaust starts to come out the back between the brackets and flap. That's when I get the snow starting to melt and ice forms.......
I should also point out that I don't have any cooling issues and don't get gassed with exhaust while riding (at least not by my sled).
Landcruiser
Newbie
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icy tunnel
I have the exact same problem with my 2008 FX Nytro RTX. Any fixes anyone?
I have the exact same problem with my 2008 FX Nytro RTX. Any fixes anyone?
