We use a tranny very similar to the Coan 3 speed, in fact Coan was working with the builder we bought ours from to develop the transmission. The latest iteration of the Coan three speed has some nice features that could make them attactive in an application of high HP and heavy weight. They have a huge selection of ratios. They are not quite as efficient as a PG, but better than pretty much anything else.jpierce55 said:One interesting thing is nobody on this site seems to have ever used the Coan 3-speed. It is suppose to be their own creation from what I understand. Do you know of anybody who has?
I have heard bad things about the power robbing of TH-400's just like the C6. Unlike the C6 everybody I know who put in a 400 took it back out and went to a glide. I am a C4 fan, but it is not good for your power level.
I think your option is glide or C6 and stay away from the Th-400