KiwiEVs next project fast EV

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
galderdi   1 kW

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Re: KiwiEVs next project fast EV

Post by galderdi » Nov 07 2016 10:19pm

I would be putting a Fan and fake pulley system on that all the way up to the white box on top. Then I would mount a scoop on the white box. People will look at it and think its a blown V8 :-)

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The Toecutter   1 kW

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Re: KiwiEVs next project fast EV

Post by The Toecutter » Nov 07 2016 10:24pm

galderdi wrote:I would be putting a Fan and fake pulley system on that all the way up to the white box on top. Then I would mount a scoop on the white box. People will look at it and think its a blown V8 :-)
To bastardize a Mad Max quote, he could call it a "Joule-injected suicide machine."

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 08 2016 2:52am

Emoto wrote:
kiwiev wrote:Big day today :D
I'm pretty pleased how it turned out and looks a bit like a V6. :) Cheers Kiwi
Great work there kiwi looks like your being pulled in all directions between projects , love the look of the ute e-v6, makes me want a e-van imagine that, with a false floor in the back plenty of room for batts :D .
One thing youve come a long way from doing your first ebike thats for sure mate congrats.

thanks mate I promise to try better on the next you tube update.

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 08 2016 2:54am

galderdi wrote:I would be putting a Fan and fake pulley system on that all the way up to the white box on top. Then I would mount a scoop on the white box. People will look at it and think its a blown V8 :-)
lol it does look that way :D the plan is to paint the box hammer metal black and run the orange high power cable and contactors out of it.

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 08 2016 2:55am

The Toecutter wrote:
galderdi wrote:I would be putting a Fan and fake pulley system on that all the way up to the white box on top. Then I would mount a scoop on the white box. People will look at it and think its a blown V8 :-)
To bastardize a Mad Max quote, he could call it a "Joule-injected suicide machine."
Love MadMax mate :D

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 08 2016 3:01am

Got some more done on the Ute, took out the 3" drop blocks from the rear and replaced with 1" drop blocks this is to allow for the extra weight of the battery pack.

Mounted the orange "Drop tank" in complete with batteries and a 350 Amp continuous Anderson plug. Note all batteries have been bottom balanced to 2.8 volts and left in parallel for 2 weeks to neutral balance so hopefully all good.
Mounted one mid battery box which took all day I mounted the tom white box on to allow the use of gland nuts, but when I lowered the tub down the tray was resting on the white box. pulled it all a part and cut 15mm of box and remounted. :roll:

Cheers Kiwi
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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 14 2016 2:35am

Finished battery boxes, and ran cables to the front via a kill switch beside the gear stick console, the cables were pushed thru some metal flex conduct.

Time to start the pretty end making the engine bay look WOW :D

installed braided water lines for controller cooling and ran phase wires from controllers to motor. Purchased some 14mm hydraulic clamps that fitted over the orange power cable just nice 8) 8) 8)

Cheers Kiwi
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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 14 2016 2:41am

VW bug update !!!

Wee bit more progress over the weekend finally got the rear battery box and batteries in. We used eight 6mm countersink bolts thru the bottom with 2mm plate washers 100 x 50mm.
then I had a brain wave and we drilled 2 holes thru the fire wall at the top of the box to locate the threaded rod retaining the batteries.

Cheers Kiwi
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galderdi   1 kW

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Re: KiwiEVs next project fast EV

Post by galderdi » Nov 15 2016 2:22am

You didn't consider putting all the batteries in the rear....watch that puppy wheelstand!!!

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 23 2016 1:46am

So here is a question for the engineers

I have been dreaming about future plans for the blue VW superbug and have 2 ideas

1, HPEV AC 51 specs 88 hp 108 ftlb torque with a 11 Kwh pack weight 90 kg so conversion weight would be approx 150 kg
Would run alloy flywheel and 2 speed box with switch reverse, then strip out weight ie race seats alloy wheels polycarbonate side windows etc.
This option would be budget and hopefully proove you can build a low cost fast EV. Also option to throw in another 11 Kwh pack in the front down the track.

2, HPEV twin AC 51s double above power torque, will need extra 11 Kwh pack to run 2 motors, I know this will be quick but expensive. :roll:

So my questions for everyone are

Would it be quicker with one motor and lighter or with two motors heaver by 150 kg and more power.? :?:

Cheers Kiwi
Last edited by kiwiev on Nov 23 2016 3:59am, edited 3 times in total.

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liveforphysics   100 GW

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Re: KiwiEVs next project fast EV

Post by liveforphysics » Nov 23 2016 3:11am

Just generally speaking from over a decade of ICE racing, if it's a gearbox it breaks from something you can find a way to do to it.

Something like single belt stage from motor to pulley on OD of a differental housing using 13" kustov on a Zilla 2KHV controller off a used volt pack or >2015 LEAF cell pack would make a bug inspiring to drive.
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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 24 2016 5:30am

liveforphysics wrote:Just generally speaking from over a decade of ICE racing, if it's a gearbox it breaks from something you can find a way to do to it.

Something like single belt stage from motor to pulley on OD of a differental housing using 13" kustov on a Zilla 2KHV controller off a used volt pack or >2015 LEAF cell pack would make a bug inspiring to drive.
Yeah sounds cool I don't know how and if a nissan leaf pack would give 2000 amps and I have already blown a DC 9" up, so a bit gun shy. :(
Thats why I am fan of AC :D my point is sometimes doubling the motors doesnt always get double the performance.

Maybe Toecutter can chip in.

Cheers Kiwi

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Re: KiwiEVs next project fast EV

Post by Punx0r » Nov 24 2016 6:42am

Comparing the power-to-weight ratio for the car with both single and double motor setups should give a rough impression of the potential increase in performance of going to dual motor. It isn't going to be double, but could still be worthwhile as long as you're not traction limited. Efficiency (wh/mi) will suffer a bit carrying the extra weight of the dual setup.

Very cool project either way, though 8)

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The Toecutter   1 kW

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Re: KiwiEVs next project fast EV

Post by The Toecutter » Nov 25 2016 10:19pm

If you want it to perform faster than an "average" car, definitely go with twin AC51s. You'd probably be looking at 0-100 kph in around 5-6 seconds with twin motors, depending on what the gear ratios are. A single AC51 with 150 kg less weight would get you 0-100 kph in about 9 seconds. I'm assuming with the lighter single-motor setup you would a converted mass of 850 kg and a mass of 1000 kg for dual motors.

In both cases, top speed could be very frightening. With proper gearing, even the single motor setup should have little issue approaching 200 kph.
kiwiev wrote:So here is a question for the engineers

I have been dreaming about future plans for the blue VW superbug and have 2 ideas

1, HPEV AC 51 specs 88 hp 108 ftlb torque with a 11 Kwh pack weight 90 kg so conversion weight would be approx 150 kg
Would run alloy flywheel and 2 speed box with switch reverse, then strip out weight ie race seats alloy wheels polycarbonate side windows etc.
This option would be budget and hopefully proove you can build a low cost fast EV. Also option to throw in another 11 Kwh pack in the front down the track.

2, HPEV twin AC 51s double above power torque, will need extra 11 Kwh pack to run 2 motors, I know this will be quick but expensive. :roll:

So my questions for everyone are

Would it be quicker with one motor and lighter or with two motors heaver by 150 kg and more power.? :?:

Cheers Kiwi

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Cowardlyduck   10 MW

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Re: KiwiEVs next project fast EV

Post by Cowardlyduck » Nov 27 2016 2:03am

Alternatively, you could make it with enough space for 2, but only install one to begin with.

You could get creative and find way's to cool a single motor well so you can push it past it's normal thermal limits producing good peak power for acceleration, but also benefiting from lighter weight and improved efficiency from having only 1 motor the rest of the time.
This is much like I and others are doing for out E-Bike hub motors.
I haven't seen many AC motor's covered in heat-sinks, but surely it would only help.

Cheers
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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Nov 28 2016 5:01am

Thanks CD and Toecutter

I was thinking of getting the twin adapter its a $1000 more but its always there to use down the track.
The AC motor has an internal fan and HPEV do a oil cool version tooo but my Sonic never got about 85 deg and they can go to 150 deg, most of the heat comes from the controllers hence the liquid cooling.

Have a source leak that there is a new AC motor on the horizon for release early next year cant release specs yet but may be a way better option. :D

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 01 2016 4:08am

Yahoo :D :D

The Ute is runningdid a wee bit of testing doing 0-100 kph in the 6-7 seconds which im happy with it will pull away in 4th gear but you can drive it like a stick shift :mrgreen:

Jobs to do:

Wire up Zeva fuel gauge driver
Play with throttle programming its sensitive in reverse even in Ecco mode and power mode is scary :evil:
Try to get OEM Tachometer going
Hard wire rear tub raising motor
Clean up wiring in engine bay
Wire up power steering unit.

Also my new Elcon charger turns on flashs red 4 times then flashes red green to indicate no battery connected.
Any ideas??.

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 01 2016 4:42am

https://www.instagram.com/p/BNaiAxFlY9l/

Here is a quick video of motor start lots of torque and not much vibration

Cheers Kiwi

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The Toecutter   1 kW

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Re: KiwiEVs next project fast EV

Post by The Toecutter » Dec 01 2016 7:31pm

kiwiev wrote:The Ute is runningdid a wee bit of testing doing 0-100 kph in the 6-7 seconds which im happy with it will pull away in 4th gear but you can drive it like a stick shift :mrgreen:
Ultimately, what battery setup did you go with and how much does it weigh?

It would haul ass in the bug... :twisted:

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 02 2016 2:14am

The Toecutter wrote:
kiwiev wrote:The Ute is runningdid a wee bit of testing doing 0-100 kph in the 6-7 seconds which im happy with it will pull away in 4th gear but you can drive it like a stick shift :mrgreen:
Ultimately, what battery setup did you go with and how much does it weigh?

It would haul ass in the bug... :twisted:
So I took the batteries out of the sonic 46 x 160 Ah Winstons and bought 2 more to run a total of 48 I bottom balanced all of them then connected them in parraell for 2 weeks, gives 24.5 Kwh at 282 Kg.

Yes it would haul in a bug just 2 inches too long but I could mod the rear I think a better option than twin belt drive motors.

Cheers Kiwi

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 04 2016 3:15am

First real test tomorrow for the Hilux ute off to work around 100Km the power is incredible :D I think this will be a very practical vehicle especially that it can carry 2 Ebikes :mrgreen:

Cheers Kiwi
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Cowardlyduck   10 MW

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Re: KiwiEVs next project fast EV

Post by Cowardlyduck » Dec 04 2016 3:25am

EPIC!

I'll have to come down for another ride some time soon then. The Fighter is going well with it's new controller and LiPo in place now. :)

Cheers
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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 04 2016 4:44am

Cowardlyduck wrote:EPIC!

I'll have to come down for another ride some time soon then. The Fighter is going well with it's new controller and LiPo in place now. :)

Cheers
Yes definitely after Christmas maybe between New year

Cheers Kiwi

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Re: KiwiEVs next project fast EV

Post by galderdi » Dec 21 2016 1:11am

Hey Kiwi,

It's looking really good. Having another look at the earlier photos I am hoping you added a guard around your drive shafts? If one of those universal joints goes you could have a rogue drive shaft punching it's way through the batteries.

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kiwiev   10 kW

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Re: KiwiEVs next project fast EV

Post by kiwiev » Dec 21 2016 7:57pm

Good point mate

It has a drive shaft bushing at the front of the battery boxes just below the back of the cab. But I don't know where I could put a drive shaft loop from there to the diff ?

Any ideas would be great mate

Cheers Kiwi

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