The Juiced Drag bike progress post

**EVcycle** · 02 October 2018

Originally Posted by flo

HI
great bike

As we do not have any 1/4 mile tracks over here in bavaria, may i ask if the track is wettet? Looks like and i wonder for what purpose?

Greets

flo

Thanks, The "shine" on the track is a sticky compound to help stop wheel spin.

https://en.wikipedia.org/wiki/PJ1_TrackBite

**EVcycle** · 02 October 2018

Originally Posted by Stevo

What dc-dc make was causing the issue? I got the 500w Sevcon dc-dc from Travis and I'm not having any issues like this yet. Just curious. I also have a small vicor dc-dc running my arduino supply and circuits and not having any noise issues from that one either, but it's completely isolated from the Sevcon side.

Sounds GREAT Ed! Looking forward to the paint job!! Cheers!

Thank you!

It was a cheap unit from EBAY "Power Converter Regulator DC 60V-120V Step-Down to DC 12V 180W 15A Waterproof".

Sevcon makes good stuff so you should not have any issues.

Changing to a battery cleaned up/removed some of the wiring so it was a good change.

**flo** · 03 October 2018

Thanks for explaining Ed

greets

flo

**EVcycle** · 15 October 2018

Painting has commenced! We hope (weather dependant) to be at the track Friday for actions photos with the new look.

As you can see from the photo is has been a few colors in the past. (even green?)

Body paining.jpg

**EVcycle** · 15 October 2018

The winglet plates on the bottom were so bad we pulled them off and will replace them.

Got to love the different color primer...

Body primer.jpg

**cmcnall** · 17 October 2018

Based on my experience with my 96V gen 2 Chevy volt packs, you may top out at around 500-515 amps without going parallel. They don't overheat, just that's about max current draw that I have been able to eek out.
If you end up getting more let me know, in either case I have been super impressed with the volt cells and construction in general.

Originally Posted by EVcycle

We finally got to go test. Had a great time, the bike ran flawlessly.

We were running 475 of the 660 available amps..

**frodus** · 17 October 2018

One thing to realize, is that the controller max stator amps is 660A. And the 475A is likely battery side. They won't ever be the same. The controller is a bit like a gear converting one RPM/Torque to another. The controller converts one voltage and current out to a modulated 3-phase voltage and current. They won't likely equal often, if at all. So if 475A is battery side, you are not likely going to ever see 660A at the battery, but because it amplifies current, it can push many more amps out on the stator.