[mpbug]

I've just sheared my third P.O.S. Wilderness EV coupler and need a better option. I have a D&D ES31B motor coupled to a 73 VW superbeetle transmission (no clutch) I only have 72 volts and drive on flats. Any ideas? I think the Lovejoy connectors look great but don't know if they make one to fit on the splines coming out of the trans. Help! Mark

[major]

Originally Posted by mpbug

I've just sheared my third P.O.S. Wilderness EV coupler and need a better option.

Hi Mark,

What is P.O.S? Got pictures?

major

[kek_63]

P.O.S. = piece of sh!t (in my world anyway)

Keith

[JRP3]

I don't think lovejoys are up to it, from what I've read. If you're breaking couplers you may have alignment issues with your motor to tranny adapter.

[mpbug]

The couplers I have used are made from the center of a clutch disc that is welded to a keyed coupler that fits my motor. The clutch disc is made from soft metal and 3/4" of spline on it.The tranny shaft has about 3" of spline sticking out in the bell housing.The soft metal splines are only about 1/16" of so deep and eventually grind off and the motor torque evetually spins them off completely. I am not generating a huge,huge amount of torque because I only have 72 volts and at best about 350 amps from my controller.I saw some guy on youtube or someplace using a lovejoy in a mazda with a Warp 9 and 120 volts. Anyone out there have a solution for me? Thanks, Mark P.S. I better not send picture of P.O.S.-I'm sure it will get censored!!

[Woodsmith]

How is it that your clutch disc centre is made from soft metal?
The clutch centre should be hard enough to handle the drive torque from the ICE without undue wear and tear.

If you look at Jackbauer's thread he has to heat up the corners of his clutch centre to get them soft enough to drill.

[Bruce A]

I had a similar problem with the center spline stripping out on a 72 volt system. I believe the reason is because I used a stock clutch hub and the metal is to soft, when I did my second coupler after the first one failed, I used a hub off a high performance clutch the metal is a harden kinda like tool steel, an I now run a 9" motor with 120 volts & pull over 600 amps at times so far it seems to be working fine.

Good Luck