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Old 12-29-2008, 11:31 PM   #1
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Default Vented Clutch Bell Discussion

I was wondering if anyone knows of any real advantages or disadvantages to running a vented clutch bell on there 1/8 buggy or truggy? Or simply what you do or dont like about them.

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Old 12-29-2008, 11:34 PM   #2
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nope no advantage to vented bells, ive never had an issue with un-vented bells
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Old 12-30-2008, 12:54 AM   #3
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There are adavantages to running vented clutch bells. Rather then having all the shavings from your clutch spread and accumulate inside the bell; with the vented ones some of the shavings gets tossed out. The vented clutch bells are lighter in weight for less unsprung weight. And lastly they also help cool the clutch faster, so the shoes and clutch bell don't overheat.
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Old 12-30-2008, 01:18 AM   #4
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yes some of those things are true but ive had talks with some of the top drivers about this same subject and they've all said the same thing '' if theyre so great they would all be vented'' theyre is no real neccesary gain from running vented bells. it wont put you in front of the man your behind. JUST MY .02
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Old 12-30-2008, 01:19 AM   #5
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After a day of racing i always tear my clutch apart and clean and inspect it. i dont see a use for a vented bell
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Old 12-30-2008, 01:25 AM   #6
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Quote:
Originally Posted by Losi-Runner View Post
There are adavantages to running vented clutch bells. Rather then having all the shavings from your clutch spread and accumulate inside the bell; with the vented ones some of the shavings gets tossed out. The vented clutch bells are lighter in weight for less unsprung weight. And lastly they also help cool the clutch faster, so the shoes and clutch bell don't overheat.
Actually the clutch bell is sprung weight. Unsprung weight are things such as tires, hub carriers, things not supported by the shocks/springs. The clutch, engine, fuel tank, diffs, electronics, etc are all sprung weight. If the clutch bell is lighter by being vented then one that is not vented, it should be easier for the engine to rotate it.

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Old 12-30-2008, 01:28 AM   #7
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Also, one good thing running a vented bell is it's easy to check the clutch shoes to see how much ware they have without removing the bell.

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Old 12-30-2008, 01:32 AM   #8
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I've had some problems with solid bells with slipping especially with new clutch shoes. I don't have this problem with vented bells. The only thing I have seen with vented bells they warp easier. They get out of round where the cut out are at over time. I noticed well to me clutch bearings last alittle longer But I prefer vented bells.

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Old 12-30-2008, 02:19 AM   #9
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Vented clutch bells offer no advantage and will shorten the life of your shoes. People talk about them letting the crap from the clutch out easier. Bad idea in offroad as you are also makiing it eiser for garbage to get IN.
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Old 12-30-2008, 03:21 AM   #10
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Vented clutch bells offer no advantage and will shorten the life of your shoes. People talk about them letting the crap from the clutch out easier. Bad idea in offroad as you are also makiing it eiser for garbage to get IN.
I tryed both. Found on dirt tracks that the vented let in dirt and killed the shoes to soon.
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Old 12-30-2008, 11:50 AM   #11
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I tryed both. Found on dirt tracks that the vented let in dirt and killed the shoes to soon.
Never actually noticed a wear differents in both styles of bells. They seem to wear the same for me
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Old 12-30-2008, 11:59 AM   #12
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the clutch will stay cooler with a vented bell.. i have ran both but i prefer vented
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Old 12-30-2008, 09:01 PM   #13
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ever since i run vented i don't go thru bearings at all
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Old 12-30-2008, 09:23 PM   #14
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Savage 4.6SS - in the summer, stock clutch was getting hot enough that after shutting engine off, the pinion was melting the spur gear. A vented Ofna CB solved that prob, no longer melting spur gears! Def made clutch run cooler.
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Old 12-31-2008, 05:16 AM   #15
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it will definelty help with bearing life
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