kalle11 Posted May 7, 2018 Share Posted May 7, 2018 Hi! I am looking for a unit around 30hp with an as big belt reduction as possible and found that the black bull corsair fits the bell in weight, cost and power. However the reduction ratio of 1:3 is a little less than I would really want. I am in need of a big reduction ratio to turn the a slightly bigger propeller slower. Realizing that designing, building installing a whole new belt reduction unit to a para motor unit is no small feat I thought of another possibility: Can I just replace the engine pully with a smaller one to get a 1:4 reduction ratio? Obviously it maybe depends on the bearing size of the original pully and other things..hence my question if it is feasable? Any home-/real engineers or DIY´ers here?:) If I am correct, the big pulley is 15cm and the smaller one is 5cm which means that I would need a 3.75 cm to get a 1:4 reduction Or perhaps there are some paramotor units with a high reduction ratios around 30hp of 1:4 or more? Thanks for taking your time to reading my post Best Regards /Kalle Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.