LightningRods mid drive kit

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SlowCo   10 MW

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Re: LightningRods mid drive kit

Post by SlowCo » Nov 24 2022 2:38pm

Very curious what a PV Next-Gen controller and an XXL could do as a combo for (light) motorcycles. Seems a nice match when dialed in correctly.

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LightningRods   10 MW

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Re: LightningRods mid drive kit

Post by LightningRods » Nov 24 2022 7:39pm

Chances are very good that you’ll get to see an example. I have a nice ‘66 Honda Sport 90 that I plan to put this combination on. Dyno tests have shown that the XXL puts out 50 ft lbs and 18kW. Vad’s NextGen should push even more watts through the XXL thanks to higher voltage. Since my S90 had around 9 HP from the factory I’ll have about twice the horsepower and 4 or five times the peak torque. Should be fun!
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speedmd   1 GW

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Re: LightningRods mid drive kit

Post by speedmd » Nov 25 2022 10:47am

Any power curves you could share? KV options? Looks to be a good fit for the super 90 class conversion. 8)

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LightningRods   10 MW

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Re: LightningRods mid drive kit

Post by LightningRods » Nov 25 2022 12:20pm

Here is the dyno sheet on the XXL, kindly provided by Greg at High Voltage Kits. The kv of the XXL is 62 rpm/volt, the same as the XL and Big Block. The Small Block is the exception with a kv of 67 rpm/volt. I use the highest kv available from the factory. I tried the lower kv motors and noticed no increase in torque. They did make noticeably less rpm which meant either less speed or less reduction which actually equates to a reduction in torque. Torque windings may work for hub motors but my observation was that it wasn't desirable with these motors.
XXLDyno.jpg
XXLDyno.jpg (152.2 KiB) Viewed 187 times
“I have not failed 700 times. I have discovered 700 ways not to make a light bulb.”
-Thomas Edison

Lightning Rods Web Site http://www.lightningrodev.com
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DanGT86   100 kW

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Re: LightningRods mid drive kit

Post by DanGT86 » Nov 25 2022 6:22pm

Nice dyno data. This seems like a great alternative to the QS 3000 watt motor.

Powervelocity.com   10 kW

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Re: LightningRods mid drive kit

Post by Powervelocity.com » Dec 04 2022 2:05pm

Now imagine doubling the voltage and spinning it close to 5K RPM (and increase the gear ratio) while reducing amps/heat. That's more kW/torque/speed with less heat losses (higher efficiency/range).

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LightningRods   10 MW

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Re: LightningRods mid drive kit

Post by LightningRods » Dec 04 2022 3:02pm

I am imagining it. 😁
“I have not failed 700 times. I have discovered 700 ways not to make a light bulb.”
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Lightning Rods Web Site http://www.lightningrodev.com
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sn0wchyld   1 MW

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Re: LightningRods mid drive kit

Post by sn0wchyld » Dec 05 2022 8:44pm

LightningRods wrote:
Nov 25 2022 12:20pm
Here is the dyno sheet on the XXL, kindly provided by Greg at High Voltage Kits. The kv of the XXL is 62 rpm/volt, the same as the XL and Big Block. The Small Block is the exception with a kv of 67 rpm/volt. I use the highest kv available from the factory. I tried the lower kv motors and noticed no increase in torque. They did make noticeably less rpm which meant either less speed or less reduction which actually equates to a reduction in torque. Torque windings may work for hub motors but my observation was that it wasn't desirable with these motors.
XXLDyno.jpg
are you able to include output power?

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