Liquid or Fan cooled? - Snowmobile Forum: Your #1 Snowmobile Forum
http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Snowmobile Tech / Mod Center > Engine / Drivetrain


» Sponsors





Reply
 
LinkBack Thread Tools Display Modes
Old 01-02-2003, 11:49 PM   #1 (permalink)
Trail Rider
 
Join Date: Dec 2002
Location: I live in NJ, ride in Old Forge NY
Posts: 121
Liquid or Fan cooled?

What do you think is better Liquid (im guessing cooled) or Fan (cooled) engines? Which one would you say is less prone to over-heating?

Last edited by doomsday; 01-03-2003 at 12:06 AM.
doomsday is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-04-2003, 02:21 PM   #2 (permalink)
True Yooper
 
strokez's Avatar
 
Join Date: Dec 2002
Location: Newberry, MI - Upper Peninsula
Posts: 195
a liquid is without a doubt. you can run them at 90* temps and she'll never overheat. Liquid cooled engines tend to have more power as well, but they are also MUCH heavier. Fan sleds are nice, they lack some power, but on the other hand, they are very light. They go through the powder much easier than any liquid
__________________
1999 Polaris XCSP 500

-soon
Sportech Chrome Windshield
Camoplast 121x1.5" Track



^^Thats me!!^^
strokez is offline   Reply With Quote
Old 01-04-2003, 10:41 PM   #3 (permalink)
Sledder
 
Administrator's Avatar
 
Join Date: Dec 2002
Posts: 952
Liquid cooled engines are much better except in conditions when there is not enough snow to reach the cooling plates. Liquid cooled engines can be built to much higher tolerences enabling them to get over 30 percent more power than a similar size fan cooled engine.

The only real drawback to a liquid cooled engine is that you need to have enough snow thrown up by the track to reach the heat exchanges to cool the antifreeze. Liquid cooled engines are not a lot heavier than fan cooled engines... and the horsepower difference between a fan and liquid cooled easily makes up for any weight differences in powder.

Fan cooled engines have a couple major drawbacks. 1. less power 2. has to be cold outside (at least less then 30 degrees) to keep them running at high rpm without overheating

In my experience, unless you live in a place where you get very minimal snow levels to ride on, a liquid cooled engine is almost all advantage over a fan.
Administrator is offline   Reply With Quote
Old 01-09-2009, 08:24 PM   #4 (permalink)
Registered User
 
Join Date: Jan 2009
Posts: 1
i have a fan cooled sled. 1985 xlv 540. the sled is very light. and with a oversized fan cools just a good as a liquid. i can keep up with almost any sled around the same cc range. i have a few upgrades done to the stock heads and cylenders but i done it my self with a dremil tool. and the sled never overheats and hasnet had any trouble.
dev6543 is offline   Reply With Quote
Old 01-10-2009, 12:05 AM   #5 (permalink)
Registered User
 
Join Date: Dec 2008
Posts: 2
fan cooled engines are also much easier to work on....simple
__________________
88 polaris 488 trail indy

95 polaris XLT extra 12
Magicaljake is offline   Reply With Quote
Old 01-10-2009, 07:34 AM   #6 (permalink)
Registered User
 
Join Date: Dec 2008
Location: franktown, ontario
Posts: 25
I dont have a lot of experience with fans but my father inlaw has a 97 polaris 500 fan, an it is such a dog, same with my neighbours bomby 500 fan, no throttle response. without a doubt a liquid is ten times the performer of a fan, I would never even consider one of these, after having driving these two POS's.
lunnex is offline   Reply With Quote
Old 01-10-2009, 08:20 AM   #7 (permalink)
Registered User
 
Join Date: Dec 2008
Posts: 20
You can run fan cooled engines in warmer temps, you just rejet it. I've seen people throw fan cooled snowmobile engines in their ultralight 1 seater airplane before. Hell I've seen a free air Car before from the 1960s Ran great in the summer never overheated.
indysledder is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 10:56 AM.



Copyright SnowmobileForum.com

Search Engine Friendly URLs by vBSEO 3.6.0