Sound Test: centrifugal clutch or CVT?

[Kirk Feldkamp]

Someone asked me a good question today that I didn't have a good answer for. I know there have been teams in the past that have used engines mated to single speed reductions with centrifugal clutches. Similarly, I know there have been teams that have used CVT's to do essentially the same thing. How does this work for the sound test? Would you simply have to disconnect your chain/belt for the test? The words used in the rules are written for multi-speed transmissions with a discrete, RPM-independent neutral position. I'm just curious if anyone has any experience with this at comp and could explain how it is resolved.

-Kirk

[Jon Burford]

We will have to remove our cvt belt this year I have been told

[AxelRipper]

Tip from experience on snowmobiles (and I've seen our baja team do this also): If they do require you to pull your belt, also pull your primary (drive clutch). Unloaded primaries are not usually happy and will try to spread their parts around like flowers at a hippie convention.

[MCoach]

Originally posted by AxelRipper:
Unloaded primaries are not usually happy and will try to spread their parts around like flowers at a hippie convention.


Ah, yes!
Did you have that situation where the engine guy(s) feel necessary to rev the hell out of a brand new toy which is shortly followed by everyone running for their lives from engine parts? In this case CVT parts do not like to stay attached and end up in the air.... and the walls...the ceiling...the floor...the cabinets...etc.

By all means, I agree with AxelRipper. I would say the same for any loose parts attached to rotating assemblies.

[Mbirt]

Originally posted by MCoach:
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by AxelRipper:
Unloaded primaries are not usually happy and will try to spread their parts around like flowers at a hippie convention.


Ah, yes!
Did you have that situation where the engine guy(s) feel necessary to rev the hell out of a brand new toy which is shortly followed by everyone running for their lives from engine parts? In this case CVT parts do not like to stay attached and end up in the air.... and the walls...the ceiling...the floor...the cabinets...etc.

By all means, I agree with AxelRipper. I would say the same for any loose parts attached to rotating assemblies. </div></BLOCKQUOTE>Hey! No one died and it was an excellent lesson learned, followed by a second place finish at competition.

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