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EVcycle replied to the thread The Juiced Drag bike progress post.
" Battery packs are on the way.

Here is a photo of what we are getting two of. They are the Gen2 Chevy Volt packs.
These are a larger version of what I have in the Cafe racer.

Attachment 7609 "

6 Hours Ago

Stevo replied to the thread The Juiced Drag bike progress post.
" Its totally doable at 5Gs. Any pics of the battery pack?
Tangerine Pearl with gold ghost flames would be killa! "

8 Hours Ago

Stevo clicked Likes for this post: The Juiced Drag bike progress post by frodus

8 Hours Ago

frodus clicked Likes for this post: More amps or more Volts? by EVcycle

10 Hours Ago

frodus replied to the thread The Juiced Drag bike progress post.
" Regardless of which direction you go on parts, this is going to be fun to watch. Glad to see you are both still doin the Elmoto thing! "

10 Hours Ago

Richard230 clicked Likes for this post: The Juiced Drag bike progress post by EVcycle

11 Hours Ago

EVcycle replied to the thread The Juiced Drag bike progress post.
" She is naked!!

The "as purchased" and stripped down photos.

Attachment 7606

Attachment 7607

Attachment 7608 "

12 Hours Ago

EVcycle created the thread The Juiced Drag bike progress post.
" Hello everyone !

This will be the thread that shows the progress as we build it. I will try to do weekly updates on how it goes.

For those of you that do not know us (Ed & Tammy - Juiced Drag Racing) We have been building and racing EVs for a while.

This bike it not going to rotate the earth. It will be fast enough to keep our need for speed happy, our retirement fund in check and
keep the other motorcycle bracket racers worried.

Smoky burnouts will be mandatory.

We are trying to build this in the 5 thousand USD range. I think with some help from a few friends and us doing 95% of the
build (I cannot paint that well ) we should make that happen.

The goodies:
A pro-built older, but perfect for this application, Kawasaki drag bike. The only Kawasaki parts (from a Ninja ZX-7R) are the steering,
front and rear wheels and the front brakes. It is Molly frame and very well built. It is set up for a 7" to 10" slick. We will be running
a 7" which is really 7.8" wide. It will meet the IHRA rules.

ME1507 PMAC Brushless Motor
Chevy Volt batteries set up for bulk and cell charging. It will be 116v or 130v. This voltage will be decided depending on the controller we get.
Right now we are leaning toward a Travis Programed SEVCON GEN4 SIZE 6 controller.

Paint - Chrysler Tangerine Pearl

The fun part will be getting all of this to fit. We have made measurements and a good plan, we will see how it goes.

Sorry, but I am old school, my cad file picture of the project is in my head.

Questions are always welcome. More later !

E&T "

12 Hours Ago

EVcycle replied to the thread More amps or more Volts?.
" Thanks Travis.

We are looking at all the options....

So far yours is the best... "

1 Day Ago

frodus replied to the thread More amps or more Volts?.
" I'd aim for 100V and 500-550A if you can. Nice sweet spot with this motor/controller combo.

The DVT Programming kit can allow some parameter changes on the fly easily. "

1 Day Ago

EVcycle replied to the thread More amps or more Volts?.
" I have looked at that controller (on your site), but I need to be able to program on the fly as track as conditions and rider confidence (Tammy) progresses.

Kelly has one too. (They sent me the info.)

I would have gone with a brushed DC motor, but we have burned up a brush set or two so it is time to go to the dark side....hee hee
Not many that I have seen ( still checking the internet) have done the drag racing with a AC motor, but the bike is light weight so it should work.

If nothing else we can do some good damage in the bracket racing side of things.

On a side note, I could get to pack to 116V 500 amps, but I would have to do some swapping around with the Cafe racer... "

1 Day Ago

frodus replied to the thread More amps or more Volts?.
" I don't know of other controllers that are tuned with that motor besides the Sevcon Gen4 series. The Size 6 is 550A 2 minute, 660A peak for 10seconds. That ought to do well for 660ft! That's at up to 116VDC. 130 is a tad high, and 67V is a tad low. I think you'd hit a wall with speed at some point. If you could aim for higher than 72V... and maybe 500A?

(Shameless plug, my company sells the Sevcon Gen4 controller, harness, contactor, programming cable and can program for the 1507) "

1 Day Ago

EVcycle replied to the thread More amps or more Volts?.
" ME1507 PMAC Brushless Motor - no controller yet

Hey Travis, That is where I was going with it. 660 feet of go go go racing.

I would like to have 300V at 1000 amps, but it is a small bike so there are battery limitations (and my wallet) "

1 Day Ago

frodus replied to the thread More amps or more Volts?.
" What motor is it?

Do you have controller already?


Usually the higher voltage, the higher it can go in the RPM range. But the higher current, the higher torque. "

1 Day Ago

Stevo replied to the thread Hello from montreal, canada.
" Back in the 80's I was riding a cafe'd out '78 Honda Hawk, always enjoyed dicing it out with RD400's, which ALWAYS kicked my ass... until I got my 500 Interceptor. Even the King (Kenny Roberts) ditched an RZ350 into the Pacific Ocean off Hawaii after test riding the RZ 350 and 500 Interceptor back to back! That was a fun bike! "

1 Day Ago

Stevo replied to the thread A series of questions to get me going..
" Man That work bench is way too organized for my tastes! LMAO!! (Mine is way worse!) "

1 Day Ago

Stevo replied to the thread More amps or more Volts?.
" I'm thinking motor rpm is controlled by voltage, so wouldn't higher voltages be better for speed's sake? "

1 Day Ago

EVcycle created the thread More amps or more Volts?.
" Hello all.

I am stepping into the world of PMAC motors. (New for me)

The Voltage pack is either 67V at 700 amps max or 130v at 350 amps.

The motor will do 6000 rpm, 100V / 600 amps ( can do 144v 700 amps for short bursts).

For drag racing would the 67V at 700 amps work better? (1/8 mile)

I am asking as I limited on controllers that will work for this application.

Thanks! "

1 Day Ago

andy replied to the thread A series of questions to get me going..
" Having the shed sorted has some advantages
https://uploads.tapatalk-cdn.com/201...c0371a13e8.jpg

Sent from my G3121 using Tapatalk "

2 Days Ago

Stevo replied to the thread Does Sevcon Gen 4 size 6 need a heatsink?.
"
Quote Originally Posted by Nuts & Volts View Post
On my 375lb R6 I ran without a heatsink. Average power was like 7kW, but I did pull peaks of 64kW too. I did have it attached to a ¼”thick piece of Alum. No thermal paste. Controller was on the bottom of the bike and exposed to direct airflow thou.

Very possible to run without one, but the system must be properly designed for it.


Sent from my iPhone using Tapatalk
I made a water cooled one ...not the prettiest but it passed a 8 psi leakdown test. Now that I made one I know my next attempt will be betterhttps://uploads.tapatalk-cdn.com/201...8dc4595503.jpg

Attachment 7605

Sent from my Pixel 2 using Tapatalk "

3 Days Ago