Gsir8

I recently stripped my clutch bell (bad gear mesh), so I bought a new one, but this one does not have the little vents in it. The last one did, if it isn't vented, will I see much of a difference?

fourboltmain

I have run both types and don't think the difference is noticeable, except for maybe a 30 minute main, but by then, the shoes are screaming for mercy anyway.

fhm101

Vented bells don't keep crud off you clutch shoes as well as non vented do.

scale only 4 me

My Feedback: (158)

But they do keep the bell and shoes cooler which is easier on the bearings
Everything is a Tradeoff

theShark

the bearings or the clutch shoes? why would the bearings heat up unless its not shimmed properly and both the inner and outer race are touching something

scale only 4 me

My Feedback: (158)

Shark, Are you stalking me?

The clutch bell bearings are in contact with the clutch bell
Thus when the bell and shoes get overly hot the bearings also get hot

Heat bad, cool good

This is toy car racing not Rocket Surgery

G35Coupe

How would the bearings get hot? Are you kidding me?

scale only 4 me

My Feedback: (158)

How would they not, No I'm not kidding

G35Coupe

Scale...I was replying to Shark...Sorry I should have quoted him..was in a hurry.

MassiveMods

just get a fioroni turbo and be done with it.

theShark

I think the bearings will get more heat from the crankshaft than the clutch and clutchbell.

Nitro_Keebler

I dont think you need to bait him for that to happen.

scale only 4 me

My Feedback: (158)

If his bearings are spinning @ 40,000 rpms he has bigger problems than just bearing heat.

And further more

Why do you need to "Bait" anyone?
This is Gsir8's thread asking about the pros and cons of vented clutch bells
Why don’t we all just state an intelligent opinion or an apposing opinion or move on, Please
All this harassment just puts people off.
People come here for help, not to read a bunch of arguing back and forth

G35Coupe

shark, nitrokeebler, Bait me some more jackass...And bearings do heat up, how long have you been in this hobby? Jackass!!!!


You honestly need to think before you speak! Both of ya's!

theShark

Really? When I click on RC Community there is a link that says RC Discussion. A Quick hop to dictionary.com shows

discussion

\Dis*cus"sion\, n. [L. discussio a shaking, examination, discussion: cf. F. discussion.]
1. The act or process of discussing by breaking up, or dispersing, as a tumor, or the like.
2. The act of discussing or exchanging reasons; examination by argument; debate; disputation; agitation.

I in fact don't even care to correct or argue with gcoupe, but the fact that someone else might come along and read his post and think that he is correct and use his advise because nobody challenges his point is what bothers be. Posts that only say this sucks and this is better than that are spam, and I think are worse than when people create more than one thread to ask the same thing. Reasons should be given why with links if possible or whatever.

Gsir8

Ya, I agree with scale, because when metal heats up, it heats up the whole metal not just where the shoes are, and that is the only way they can get hot. I think I'm going to go back to the vented though, because I ran it today and almost seemed like the bell was gonna melt. Think its because I'm running aluminum shoes.

scale only 4 me

My Feedback: (158)

On the wide open flowing track it's no biggie, but on the tight technical tracks with alot of on/off throttle and braking those bells get cooking.

fourboltmain

I am not sure of the even trade-off here, but approaching this as though you are bashing, you shouldn't have anything to worry about as far as the bell not being vented.

If this is a long term thing for you, and you want to buy one that is going to last a long time, you will have much fewer run-out worries with a non-vented bell because there is more material to dissapte heat.

I'll run heats with both and post the temperature results. This is kind of interesting.

scale only 4 me

My Feedback: (158)

Not meant to attack you, just your theory,
If this were true, why do engine have cooling fins?
If your stated theory was correct, the engine heads would be one big solid block of aluminum

The vents allow air circulation which is what actually help disapate the heat

fourboltmain

LOL,

You are incorrect. The cooling fins on an engine give the engine more surface area. Maybe "material" in my previous post was a bad choice of words. But the more surface area exposed to the surrounding environment, the cooler it will be. So if you showed me clutch bell with cooling fins on it I'd say yeah you're right as rain, but in this case, you're wrong. Sorry.

theShark

scale only 4 me

My Feedback: (158)

So what do you think the vent holes are there for?
See I'm thinking Ventilation, as in let air circulate in and out, just like the cooling fins on the motor

jwren00

what is rocket surgery?

Da Smak

It's like Total crap!

But back to the post, No-one has mentioned the other plus of vented bells, that there is less rotational mass to spin up so accel is improved on those tight tracks, but as mentioned do you really want crud and fuel on your shoes in that main.

fourboltmain

Scale, the vent holes are there because people like you think they are whiz-bang. The theory that you postulate about the clutch bell's ability to circulate air is not feasible. (PM me if you need help understanding this) When is the last time you saw a brake drum with ventilation holes in it?? They have cooling fins. Something clutch bells do not have the luxury of being designed with. There is a reason why brake drums have been that way for umpteen years, but hey let's not get into physics, this is just toy car racing, so take your own advice and let it rest.