Clutching the beast

[St0rm77]

hey there felow snowesters, i know this has more than likely been asked, but it would be nice to have it in one place:

Clutching and its various components.... how do they affect each other? ie: primary spring starting force, loaded force -vs- engine rpms, primary weights, secondary spring forces -vs- helix angle?

i've got a slight idea about the primary weights ( moving the engine rpms around to hit the sweet spot), but was wondering about how the weights would be affected by increasing the primary spring initial loading?

i'd like it to be relatively elevation independant ( i know the elevation will affect the engines ability to produce power by a reduction in air pressure at elevation), so i guess i'm asking for a high level overview of what does what.....

i hope that's reasonably clear..... i think

 

[retiredpop]

Apart from buying and reading Olav Aaen's clutching handbook for a start there was an article in Snow Tech magazine (am I allowed to say that on here?) years ago that went into a lot of theory on clutching. I found the following link that has a copy of the article. It should answer some of your questions. http://www.sledgear.com/driventech.htm