Re: Direct Drive Van under construction

[Russell Levine <cowtown@JPS.NET>]

: My RX-7 with a ADC 9" was not adequate  accellerating from a dead stop in
: 4th gear 1:1 for keeping up with city traffic.  I would at leats suggest
: gearing that maxed out the rpm at his absolute max speed (say 55mph) if
: he insists on one ratio only.
:
: >>        My friend Karl, is more than 3/4 of the way through
: >converting
: >>a Nissan Vanette to a direct drive electric. He is using an ADC 9",
: >>144 volts of T145's and a curtis 1231c.
: >>

Doesn't Curtis recommend the 1231 not be used with an AdvDC 9" motor?
First, he ought to look for a different controller or motor, then he might
consider a two-speed differential. These usually use an electric clutch,
and may give him enough low-end RPMs to not burn up either the controller
or motor...at least he could start from a stop in the equivalent of third
or a high second gear, rather than fourth. Of course, electric
differentials are used on fairly large vehicles, so maybe a two-speed
transfer case from a little SUV (e.g.-Samurai) could be adapted...?

Re: Direct Drive Van under construction