New member!

[exenos]

Oh, alright.

 

[landuse]

Tibbey- post a close-up pic of your "clutch". I still insist it's a CVT. I grabbed one of your pics from above, cropped, enlarged, and labelled. Anybody here still think it's a C-clutch?

No. It is obviously a CVT

 

[OzFab]

Tibbey- post a close-up pic of your "clutch". I still insist it's a CVT. I grabbed one of your pics from above, cropped, enlarged, and labelled. Anybody here still think it's a C-clutch?

I definitely do, I was the one who pointed it out

 

[Tibbey]

il get another pic later today guys
by the way, is there anyway i can change the title? its starting to go a little off new member subject...

 

[Tibbey]

More pics

more pics

 

[Nodroz]

Yeap, that's a TCV!

Did you get the engine running already? What tyres are you going to buy?

 

[Tibbey]

ive had this for a while, and i did get the engine going before ive already got some tyres, but im replacing the rear ones (pics should be on this thread). im also getting the rims powdercoated

 

[OzFab]

Yeap, that's a TCV!

You mean CVT (Constantly Variable Transmission)

@Tibbey. Are you convinced yet? lol

 

[Tibbey]

just to make it a bit clearer, whats the difference?

 

[Doc Sprocket]

HUGE! A clutch simply provides a disconnect between the engine and axle. It allows slippage at idle and under acceleration. With NO clutching action, the engine could only run with the kart moving. Your gear ratio is fixed. When the engine gets to peak RPM, that's as fast as you're going to go. There is a large sacrifice between speed and acceleration when you only have one effective gear ratio.

A CVT (Continuously Variable Transmission) provides clutching action, PLUS- It is a variable ratio transmission. You are able to take better advantage of the engine's available power, as you have an infinite ratio within the CVT's ratio range. You get a lot more torque off the line, with the potential for greater top speed- even in a kart that is identical to one equipped with a clutch.

CVT's shine on fun, yard, and offroad karts, especially with larger tires. Such a kart equipped with a centrifugal clutch would need to be geared quite low to have any kind of torque in order to avoid burning out the clutch. The liability is that having to gear so low results in a rather low top speed. Having a CVT negates that, providing plenty of low end at a potentially higher gear ratio, while still allowing good top speed.

 

[Tibbey]

thanks for the reply, any idea if i could tell what make/model???

 

[Doc Sprocket]

Might be a Comet 40. Look for markings on the units and report. Check the belt profile- is it V-shaped, with the same angle on both sides (symmetrical), or is it angled on one side and very nearly flat on the other? Measure the top width of the belt. Also report any numbers/markings on the belt.