pete_b Posted October 6, 2013 Share Posted October 6, 2013 I have a project in mind and need to transfer the power from a 600cc four stroke engine approx 20-30 Hp, similar to the lower end of an outboard motor or the rear wheel of a shaft driven motorcycle. Requirements light weight Compact If possible Low maintenance Pete Quote Link to comment Share on other sites More sharing options...
Neilzy Posted October 6, 2013 Share Posted October 6, 2013 Pete Ive seen a unit for using a motorcycle engine in a kit car and it does just that bolts onto the output of the engine and turns it thro 90 then connects via a prop shaft but cant remember who makes it but this might point you in right direction ie caterham etc also used to use Milner transfer boxes on off roaders don't know if they make something.... Neilzy Quote Link to comment Share on other sites More sharing options...
ganers Posted October 6, 2013 Share Posted October 6, 2013 Check out the kit car forums I know loads of them are using the transfer boxes to mount 1000 cc and larger they should be able to point out a supplier. Lee. Quote Link to comment Share on other sites More sharing options...
pete_b Posted October 6, 2013 Author Share Posted October 6, 2013 Cheers , I will investigate further. Quote Link to comment Share on other sites More sharing options...
PatPux Posted October 6, 2013 Share Posted October 6, 2013 Mostly when mounting motorcycle engines in caterham derivatives they are mounted longitudinally, straight off the sprocket with a short prop shaft , sometimes to a reversing box, so they won't normally need to turn through 90 degs Quote Link to comment Share on other sites More sharing options...
AdEves Posted October 7, 2013 Share Posted October 7, 2013 Pat - I'm thinking of something similar. How about a quad bike diff with one output fixed... Quote Link to comment Share on other sites More sharing options...
ptwizz Posted October 7, 2013 Share Posted October 7, 2013 Some bike engines (eg. XS750) had a bolt-on 90° drive at the gearbox. I wouldn't recommend using a diff. with one side locked. Running like this, the differential gears are doing far more work than they are designed for. Quote Link to comment Share on other sites More sharing options...
PatPux Posted October 7, 2013 Share Posted October 7, 2013 Some bike engines (eg. XS750) had a bolt-on 90° drive at the gearbox.I wouldn't recommend using a diff. with one side locked. Running like this, the differential gears are doing far more work than they are designed for. And presumably you will be carrying a whole load of surplus weight that's not doing anything. Assuming that this is some airborne project, I guess "lightweight" is the key word. Quote Link to comment Share on other sites More sharing options...
ptwizz Posted October 7, 2013 Share Posted October 7, 2013 Here's one... http://www.ebay.co.uk/itm/Yamaha-XS750-XS-750-0287-Middle-Drive-Bevel-Gears-/360328498415 Might be bigger than you want. Perhaps something from one of the recent batch of 400cc super scooters? Quote Link to comment Share on other sites More sharing options...
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