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lighter: Wet or Dry Clutch motor

Started by Raux, December 06, 2009, 10:24:39 AM

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Raux

December 06, 2009, 10:24:39 AM
Which is lighter, a wet clutch motor or dry clutch motor, if everything else were equal?

ducatiz

#1
December 06, 2009, 10:57:58 AM
my guess is the dry clutch is lighter.

parts are about the same
the cover is a little smaller (and can be removed)
oil volume is about 1/4 qt less.
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Duck-Stew

#2
December 06, 2009, 03:56:39 PM
Probably a wash as far as the clutch parts go...

But, a wet-clutched motor does have a lighter engine case so if you're talking about the entire engine then I'd say a wet-clutched motor is definitely lighter.
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ducatiz

#3
December 06, 2009, 04:14:52 PM
that's a good point, i didn't even think of the whole motor and that was the question, duh...
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Duck-Stew

#4
December 06, 2009, 04:16:44 PM
Quote from: ducatiz on December 06, 2009, 04:14:52 PM
that's a good point, i didn't even think of the whole motor and that was the question, duh...

The OP has a 696 so I'm pretty sure he's considering a dry-clutch addition to the mix is what this question is about...

But I've been wrong before.  Earlier today.
Bike-less Portuguese immigrant enjoying life.

ducatiz

#5
December 06, 2009, 04:19:51 PM
Quote from: Duck-Stew on December 06, 2009, 04:16:44 PM
The OP has a 696 so I'm pretty sure he's considering a dry-clutch addition to the mix is what this question is about...

But I've been wrong before.  Earlier today.

Part of the question is that there are more aftermarket options for dry clutches too.  Pick up an aluminum basket and clutch pack and you shave off even more.

I think in the end a dry clutch could easily provide a weight advantage.
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Duck-Stew

#6
December 06, 2009, 04:21:47 PM
Quote from: ducatiz on December 06, 2009, 04:19:51 PM
Part of the question is that there are more aftermarket options for dry clutches too.  Pick up an aluminum basket and clutch pack and you shave off even more.

I think in the end a dry clutch could easily provide a weight advantage.

Agreed.  The wet-clutch motor has a steel basket riveted to the primary gear so there are NO aftermarket options there...
Bike-less Portuguese immigrant enjoying life.

ducpainter

#7
December 06, 2009, 04:22:59 PM
This is really a trick question.

All the recent dry clutch motors have been 900cc and larger.

All the wet clutch bikes have been 800 and smaller until recently...the ST3 and 848 being the exceptions.

I know the 750 is about 15 lbs lighter than a 900, but like Stu said its because of the cases and cyls/heads being lighter.

I don't believe there is any significant weight difference in the clutch parts themselves.
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Raux

#8
December 06, 2009, 09:10:47 PM
Quote from: Duck-Stew on December 06, 2009, 04:21:47 PM
Agreed.  The wet-clutch motor has a steel basket riveted to the primary gear so there are NO aftermarket options there...

hmmm interesting idea just came to me.

Raux

#9
December 06, 2009, 09:11:59 PM
but yes, i have been contemplating a dry-clutch conversion.

Ducatl

#10
December 06, 2009, 10:09:44 PM
I wonder if the 696 motor is easier to swap to dry than the older wet clutch bikes were, it might be a more appealing option if they are.

sbrguy

#11
December 07, 2009, 04:24:20 AM
supposdily (my local shop says this is true) the 848 conversion kit if the shop is good can be used on practically any wet clutch bike in the last 6-8 years.

the thing i was told is that ducati has not changed the bolt pattern for the right side case in last 10 years for the wet and dry bikes, so with the conversion kit coming with a new right side casing that solves a lot of the problems of conversion.  the only issue is when the conversion kit goes on sometimes on bikes that are not the 848 have the gear on the left side moved a little and then they have to shave the gear or something (not sure 100% on this but basically its not always that this needs to be done). 

tranlsation= supposidly compared to the old conversion where you had to have all these custom parts/new engine cases, etc and new seals made, the new conversion kit does away with all that and 99% of the time should bolt right up in 2 hours of time.

look at it this way, to change out a perfectly good functioning wet clutch for a new dry clutch makes no sense at all technologically.  you do it because you want the cool sound and aesthetics.. nothing wrong with that, but don't try to justify it with the whole "weight/perfermance" arguement its probagly a wash at that point.

Raux

#12
December 07, 2009, 07:26:28 AM
seems the best idea at this point is to find a lightweight wet clutch.

ducatiz

#13
December 07, 2009, 08:59:30 AM
Are there any aftermarket Ducati wet clutches?  I've never seen any.
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Raux

#14
December 07, 2009, 09:00:14 AM
Quote from: ducatiz on December 07, 2009, 08:59:30 AM
Are there any aftermarket Ducati wet clutches?  I've never seen any.

if not, i know a guy :D
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