I see a lot people putting vents everywhere. One question, why? Where and why are they important...
The Importance Of Venting...
- Thread starter DrSmooth
- Start date
J
Jkinzer
Well-known member
under hood heat is bad, kills power, kills belt life, hot belts dont work near as well as warm/cool belts. by venting your shock towers and footwells your allowing cold air to be forced through your engine compartment. keeping the clutches cooler as well as the belt allowing them to perform better. not only do vents serve a big purpose by keeping everything cooler they give a sled a trick custom look
where are the more important places to vent?
If you ride deep snow vents are key in reducing heat for cold air....If you ride the trail there is typically enough cold air moving under the hood since deep snow is not consuming the sled.
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Venting is good, but there is something as too much (unnecessary) venting, for instance:
If your clutching setup is wrong and inefficient, or gearing... It will make excess heat. If you think the solution is to vent because of that, you are wrong. Sometimes the source of the heat needs to be addressed.
Removing foam, is one way to lower engine bay temps also. All that insulation traps the heat also.
Many people run pods also, and the motor needs cool air to get H.P. That is another reason to have plenty of vents.
If your clutching setup is wrong and inefficient, or gearing... It will make excess heat. If you think the solution is to vent because of that, you are wrong. Sometimes the source of the heat needs to be addressed.
Removing foam, is one way to lower engine bay temps also. All that insulation traps the heat also.
Many people run pods also, and the motor needs cool air to get H.P. That is another reason to have plenty of vents.
this is my first new sled and I'm thinking of running the SLP performance package... and suggestions for venting on that, also if i just run a pipe/can combo
X
XC700116
ACCOUNT CLOSED
on your 09 RMK you'll want to at least do some clutch side venting, I would suggest the shock tower, and footrest vents and maybe a side panel. You will also want to make sure the intake tract around the headlight is sealed well and SLP will most likely reccomend a flow-rite in the dash although I like the 2 cool dash vent much better. You will also want to either get one of the prefilter type kits for the headlight adjuster or seal it with a piece of duct tape.
More ventilation = more noise
One reason the manufacturers keep the engine bay sealed is to comply with dcb standards.
Epa
the noise reduction. the more openings and thinner barriers, the more noise gets out to the decible meter in epa tests.
the noise reduction. the more openings and thinner barriers, the more noise gets out to the decible meter in epa tests.
That is why the foam is on the hood panels to lower the noise.
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I was talking about this very thing at the Snowmobile Show with one of the vendors. They made a good point (I think) that venting needs to be strategical for cold air in AND strategical for hot air out. Makes sense to me
I was talking about this very thing at the Snowmobile Show with one of the vendors. They made a good point (I think) that venting needs to be strategical for cold air in AND strategical for hot air out. Makes sense to me
can you elaborate...
if all you have is vents in the front they cant do very much as the air cant escape out the back, ad decent setup with some ventso n the shock towers, some on the knee area and even a tad on the side panels and your golden. I have ridden with 2 M7's, one is stock, the other is gutted and has tons of venting, the stock one overheats on the trail in the spring without scratchers, never had a problem with the other one in the exact same conditions.
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