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Posted 25 October 2004 - 04:43 PM
I was wondering if you guys know of anyone who has an extra rear differential and maybe even axles to go with it. We need to get one cheap for our school project. We're building an off-road gokart to compete with other colleges. In the past we've done away with differential, but I think these little differentials would be perfect for us to use. The engine is a 10hp Briggs and we're not going over 35mph or anything. If you're interested there are some info here:
Does anyone know how much of an angle the CVs will operate reliably?
PS: an LSD diff would be great. We just can't spend too much money on this; we don't have any sponsors.
Posted 25 October 2004 - 04:56 PM
What hubs are you using? The wheels look like standard Honda Atv rims. How are you mounting all that together?
Posted 25 October 2004 - 05:01 PM
Just a thought
Posted 25 October 2004 - 05:11 PM
While the articulation was great, we didn't design an adequate sway bar, so there's a lot of body roll. We're going back to IRS now rather than a live axle like this one. We've done IRS in the past (H-arm w/ locating link, trailing arm, 5-link), but never done differential, even this live axle has no differential, 90 degree bevel gears out of some three wheeler that came this way.
While the engine is only 10hp, we're gearing it down to around 15-20:1 or so from engine down to wheel, and that makes for 300 - 400+ft-lbs of torque. Any ideas would be great as to what to use for the CV joints/U joints. We're aiming for 12 inches of suspension travel, and in the past we've needed angles like 60 degrees total to achieve 12-14 inches of travel.
Posted 26 October 2004 - 12:40 AM
Another option for a chain-drive diff is to take a diffhead (crownwheel assembly) , eg suzuki alto or other <1 litre lightweight car, mount it in sealed bearings and seal all openings around the spidergears. Leave a small quantity of oil in the diffhead before you seal it right up or fit a bung to it, to lube the spider gears. Unbolt crownwheel, bolt on a sprocket, and you have a chaindriven IRS differential suspension.
Posted 26 October 2004 - 02:33 PM
Thanks a lot! Any LSD gear sets out there? :-) wishful thinking on my part eh?
Posted 27 October 2004 - 02:47 AM
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