Hi. Well after some time in a garage I have finally got close to the end of my conversion. I decided to have a go at a hub drive system ( German ) that has variable torque/voltage controller and do away with the existing motor and gearbox.
I used an old dog of a C5 that looked pretty sad at the time that had all its guts ripped out already by a previous owner.
With this I had the following done:
*Chassis sandblasted and strengthened and powder coated.
*The Axle due to hollow I had it cut and a new one made of SOLID STAINLESS STEEL ( ouch )
*Front and rear disc brake
*Bander chain ( stainless steel with a 320 kg brake allowance )
*36 / 72 volt German hub fitted with a Hope chain ring.
*2 x 36volt Lion - Lifpo4 batteries .
*All new bearings and bearing runners, ( pillar )
*Chain tensioner ,stainless steel throat and press of 6kg to help sag.
*Hope rear sprocket, 36 click, nice and quiet.
*A 12mm steel housing to hold the hub and strengthen chassis. ( I got help with the welding )
*A boss to hold both the drive gear and disc brake.
*Strip lights underneath ,Red underside at rear , blue direct under and white around the front wheel. This lights up the front wheel cover reflectors and gives a good visibility.
Results:
36 V HT = 18mph up hill + 23 on flat.
36 v HS = 32 mph on flat , Not good up a hill
72 v HS = 48 mph on flat .... gave up as nearly **** myself.
I dont think the 72 v was worth it to be honest as the c5 was 'Wobbling' on the steering quite a bit. The quest for speed on the C5 should be limited as the faster you go the joy seems to diminish. Running on 36v was quite enjoyable as in HT throttle was steady on just about all terrain and hills. So with this I will just connect the batteries for 36v, much nicer ride.
To finish, decals on side and rear wheel covers and refit the front cover with new decals and the others are dirty.
Hope this was an interesting view. thanks M