I am now going to put the engine side ways on, with output shaft to the rear, with drive clutch. The secondary clutch will be on a jack shaft ( where white tape is) with a sprocket on the other end driving to a sprocket on the diff input shaft. sprockets 2 to 1 and diff is 4.1 to 1 will give me 8.2 to 1.Is that correct livewire.
It is all a bit tight, but I think it will all fit in, the engine is higher than I wanted but I think I can put an air box under the engine which will give better access to top of the engine.
If the limited slip diff is not to my liking I can get an after market one or weld it up solid.
The exhaust will come out of the side by the rear mudguard then loop around under the roll cage rear braces. This means I can use the pipe I have, It was going to cost ?500 thats about $1000 to have 2 pipes made with the engine in the original position.
When I first looked at using a car diff I thought it would be to heavy but I weighed the pilot engine and tranny and that is 65 kg, my rotax engine and diff are 57 kg so with clutches engine/diff mounts and a few other bits it will not weigh a lot more.
Doing it this way saves me about ?1200 and I can use the pilot fuel tank, it also may be better with the limited slip diff to cut out some understeer (pilot push)
I was very lucky to find the cv cups on the pilot are the same size as the ones on on my car diff, the splines are different, but I can use the pilot drive shafts.