Hello Gents,

Just a question as I can remember somebody mentioning an alloy or aluminium containing clutch bell is no good for the Buku composite material.
What is true and what is fairytale in this and whats the reasoning behind it?
Currently I have installed the V2 alloy clutch bell of the IGT8 which is a vented one.
So the questions actually is:
* Is the improved heat dispatching of the alloy bell only caused by the vents?
* Does the alloy material have an effect on the Buku composite?
* Might it be better to use the none vented steel bell from IGT8 or may be use a different brand provided the pinions have the same mesh?

Kind regards

W.

It depends the bell material. Aluminium comes in many different alloy's...

Most of them can go soft due the heat and then the surface can be peeled. That is depending the shoe material, a hard shoe will cause more slip so a lot of heat. Do not use an aluminium shoe because aluminium on aluminium will distroy the surface.

Keep in mind that an aluminium bell has a short life, the heat will make the aluminium structure weak and can shater in pieces.

A venting clutch bell is wise to have, heat from the inside wiil be transported out much quicker. But I will sugest to use a steel because the weight difference will not do much with the allready heavy weighted drive train and car and is on a longer use much more reliable..

THX!...

I’m running a buku clutch on Novarossi Mito gt5/17. Left it as stock setup out of the bag. Felt ok on the first race day. Took it out again this weekend and i a broke a shoe. I tightened the springs up 1/4 turn. The clutch bell turned purple as well. So it would accelerate good but it seemed better if i already had lot of rpm built up. So should i have loosened the tension instead ?