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Discussion Starter #1
While contemplating my options on a future EV, I started looking at
gearbox options. The obvious route is to leave the existing gearbox
in the car. This gives me the flexability of both suburban and
highway driving at as low a drain rate as I can manage. The problem
is it you want to use the clutch as an emergency disconnect, or
variable regen 'switch'. So I started thinking about semi-automatic
'sports' gearboxes, like those you find in an increasing number of
passenger vehicles these days. These are hard to come by, unless you
find an appropriate wreck, but I then spotted this on EBay:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=200170464766

I'd guess it would mount to an electric motor much like the gearbox
on a FWD would. And with a rating for 100+hp, it'd be a great fit
for 20 - 30Kw motors, and a weight reduction of maybe 50 kilos.

Has anyone had any experience with fitting a motorbike gearbox into a
full-sized car or truck?

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Registered
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70 Posts
Discussion Starter #2
Be careful, just because it can handle 100 hp doesn't mean it can handle car levels of torque. A car weighs 5 to 10 times a motorcycle's weight, and needs alot more torque just to get moving. A small transmission like that might overheat, too. The clutch would be too wimpy and easily burned up.

----- Original Message ----
From: Dominant <[email protected]>
To: Electric Vehicle Discussion List <[email protected]>
Sent: Wednesday, November 7, 2007 7:48:44 AM
Subject: [EVDL] Using a motorcycle gearbox in a full-sized EV.

While contemplating my options on a future EV, I started looking at
gearbox options. The obvious route is to leave the existing gearbox
in the car. This gives me the flexability of both suburban and
highway driving at as low a drain rate as I can manage. The problem
is it you want to use the clutch as an emergency disconnect, or
variable regen 'switch'. So I started thinking about semi-automatic
'sports' gearboxes, like those you find in an increasing number of
passenger vehicles these days. These are hard to come by, unless you
find an appropriate wreck, but I then spotted this on EBay:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=200170464766

I'd guess it would mount to an electric motor much like the gearbox
on a FWD would. And with a rating for 100+hp, it'd be a great fit
for 20 - 30Kw motors, and a weight reduction of maybe 50 kilos.

Has anyone had any experience with fitting a motorbike gearbox into a
full-sized car or truck?

_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev




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