Thread: Goingbush's Electric Vehicle project

Originally Posted by goingbush

The twin35 is an awesome motor, I don't think you would need rock crawler gears though, with max torque at zero RPM (like a steam engine)

Electric motors HP motor rating is worked out very differently than Internal Combustion, the AC51 I'm using in Series 3 is 88HP (way more power than required), but the petrol engine is 82HP , however the electric has way more useful power.

“When the load on a petrol motor increases and rpms drop, torque also falls. For an electric motor torque increases.”

explained here , Electric Motor HP Ratings (and Other Secrets of the Universe) vs Gas | The Electric Chronicles: Power in Flux

Id be ditching the gearbox, and with the 10,000rpm redline of the AC motor and 5,000rpm constant speed I'd be trying to gear it for 5000 rpm at 110kmh or as close as possible.
i owned a Mitsubishi imiev for 2 years and did 40,000km in it. Electric is fun!

There is a new start up in the US that is making an awesome concept!
Bollinger Motors

I use to work with this guy and watch the development of his EV motor bikes from using an electric forklift motor to the production units, very cool and local Aust ingenuity!!

Think they also do AC motors rewound to operate in EV??

Cheers Lemo

http://www.catavolt.com.au/

My motor just arrived . only took 2 months from date of deposit.

I see a problem straight away, I'm going the have to make a spacer to move the motor forward, the flywheel adaptor sits too far back.

Will have to wait till I remove engine from Landy so I can measure it up .

Great thread,

I'm watching with interest!

Check this out, I was just google searching for how to mount the front of the motor and found a guy put a HPEVS AC31 motor in a Suzuki , quite a bit smaller than my AC51 .

Got some good ideas from him, He has twisted half shafts & TC mounts from the torque.

Originally Posted by goingbush

My motor just arrived . only took 2 months from date of deposit.

I see a problem straight away, I'm going the have to make a spacer to move the motor forward, the flywheel adaptor sits too far back.

Will have to wait till I remove engine from Landy so I can measure it up .

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I could be wrong, but to me the bolt pattern on the adapter plate replicates the bolt pattern on the engine block. This would mean that you have to use both the flywheel housing, the gearbox bell housing and the flywheel.

The engine side of the flywheel is recessed to fit the crankshaft flange so you may not have a problem at all. I guess time will tell.

It's a pity you're not up here in Sydney as we have a number of spare housings and flywheels that we could do test fits before you need to remove your old engine.

Theres a new AC motor just released .

Better specced , and cheaper than my HPEVS AC51 - always the bloody way . I would have waited for this had I known about it . But its that way things go with technology .. At least the AC50/51 has a unblemished reputation for performance and reliability .

Looks fantastic , and don't forget you cant compare Power figures to Internal Combustion engines , this has way more grunt than a Landy engine. Getting HiTuff axles and a Trueurac diff is a given - even for my apparently lower specced motor.

HyPer 9 IS