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-   -   wet vs dry clutch whats the difference? (http://www.twowheelfix.com/showthread.php?t=2769)

BobTheBiker 10-07-2008 12:15 AM

wet vs dry clutch whats the difference?
 
I know the wet clutch is basically soaked in oil all its life, where the dry clutch isnt, but other than that, whats the difference/advantage of one over the other?

PiZdETS 10-07-2008 12:19 AM

A dry clutch allows you to be arrogant about your italian exotica to people who innocently ask why your bike sounds like the engine is shattering.

http://www.youtube.com/watch?v=ebgJJRWLzMI

marko138 10-07-2008 08:00 AM

Loud clutches save lives.

Rider 10-07-2008 08:02 AM

Loud clutches are expensive....

the chi 10-07-2008 11:31 AM

Quote:

Originally Posted by PiZdETS (Post 77038)
A dry clutch allows you to be arrogant about your italian exotica to people who innocently ask why your bike sounds like the engine is shattering.

http://www.youtube.com/watch?v=ebgJJRWLzMI

:rofl:

the rattle and whir are completely enthralling...

Gunther1000 10-07-2008 12:53 PM

I would have to think that the loss of friction and HP of spinning an oil bathed clutch has something to do with it. But with there TQ numbers this can't be the main reason for the switch. Maybe oil contaminatin also?:idk:

PhiSig1071 10-07-2008 01:16 PM

"Wet" Clutches are more consistent in operation and have a longer service life due to a more consistent operating temperature, however they have more tendency to slip due to the fluid they are in, thus they require more friction plates. This causes a greater parasitic loss through the clutch due to the resistence of the fluid and the increased mass of more plates. Dry clutches are pretty much the opposite, they are not as consistent and they don't last as long, but they cause less parasitic loss because of fewer plates and less rotating resistence.

Rider 10-07-2008 01:22 PM

Quote:

Originally Posted by PhiSig1071 (Post 77145)
"Wet" Clutches are more consistent in operation and have a longer service life due to a more consistent operating temperature, however they have more tendency to slip due to the fluid they are in, thus they require more friction plates. This causes a greater parasitic loss through the clutch due to the resistence of the fluid and the increased mass of more plates. Dry clutches are pretty much the opposite, they are not as consistent and they don't last as long, but they cause less parasitic loss because of fewer plates and less rotating resistence.

There you have it... the man has spoken. :dthumb:

PhiSig1071 10-07-2008 01:32 PM

Oh, I also forgot, dry clutches shed heat more effectively (into air rather than into hot oil) which causes less plate expansion. As wet clutch plates expand they shed material due to friction which will get into the oil and can cause premature wear to bearings and other parts in the engine. Also, due to the oncreased number of plates necessary a wet clutch requires a harder "pull" in order to engage and disengage.

Rider 10-07-2008 01:34 PM

Quote:

Originally Posted by PhiSig1071 (Post 77150)
Oh, I also forgot, dry clutches shed heat more effectively (into air rather than into hot oil) which causes less plate expansion. As wet clutch plates expand they shed material due to friction which will get into the oil and can cause premature wear to bearings and other parts in the engine. Also, due to the oncreased number of plates necessary a wet clutch requires a harder "pull" in order to engage and disengage.

I assume that with the extra plates and oil, wet clutches add more weight as well right?


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