Speedily's Dragster

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Speedily
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Post by Speedily » Tue, 02 Mar 2010, 02:58


1) Find Dragster with a trailer
2) Sale off ICE parts not needed
3) Redesign rear end to chain drive
4) Motors
5) Controllers
6) Traction pack
7) Go racing with a EV grin Image


The Dragster before being striped
Image

Some of the parts sold off

ImageImage

The first look at how i was thinking about the redesigning of rear end to make it chain drive
ImageImage

The motors

Two 11" 250 Volt Kostov that have been madeup to suit the dragster by the guys at Kostov,the motors can series/parallel the fields

Controllers

Two
Image
max volts 340 max amps 1000 but can go to 1400amps for racedays


Last edited by Speedily on Fri, 18 Jun 2010, 12:57, edited 1 time in total.

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Post by EV2Go » Wed, 03 Mar 2010, 16:27

Call me paranoid but the drive shaft looks a bit small Image

Wish I had seen the diff housing before you sold it Image I just recieved mine from Strange on Monday and they look about the same length.

Any pics of the two motors?


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Post by Speedily » Fri, 05 Mar 2010, 02:26

EV2Go wrote: Call me paranoid but the drive shaft looks a bit small Image

Wish I had seen the diff housing before you sold it Image I just recieved mine from Strange on Monday and they look about the same length.

Any pics of the two motors?


Oh that axle would hold up to .5 hp maybeImage , The axle will be 7075 grade 76mm ID and heat treated

I sold off the whole setup it was all Strange parts too oh well that was 6 months ago

The motors are being build now so all i've got are the draftings but they look like my avatar Image

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Post by Tritium_James » Fri, 05 Mar 2010, 02:54

Why couple the motors together? Can't you simplify things and have two chain drives, one per motor/wheel? No expensive gearing then, and no need for a diff. Those controllers can regulate motor current, so if you command them both to do the same thing, you'll have the same torque at each wheel, and everything stays straight down the line...

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Post by Electrocycle » Fri, 05 Mar 2010, 02:57

the axle will be solid anyway - no diff required, but I'd still be tempted to run a chain from each motor. The only disadvantage is that when you want to change ratios you have to do it twice.
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Post by Thalass » Fri, 05 Mar 2010, 07:07

Nice! I think this'll be a project for life! Can't wait to see some times and videos.
I'll drive an electric vehicle one day.

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Post by Speedily » Sat, 06 Mar 2010, 02:55

Electrocycle wrote: the axle will be solid anyway - no diff required, but I'd still be tempted to run a chain from each motor. The only disadvantage is that when you want to change ratios you have to do it twice.

but why run two chains to the back wheels the chain i've got wont break ??


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Post by Speedily » Sat, 06 Mar 2010, 03:04

Tritium_James wrote: Why couple the motors together? Can't you simplify things and have two chain drives, one per motor/wheel? No expensive gearing then, and no need for a diff. Those controllers can regulate motor current, so if you command them both to do the same thing, you'll have the same torque at each wheel, and everything stays straight down the line...


If i run a motor for each wheel and if one stops working i'm in trouble Image fill power on one wheel is dont gunna end good
Last edited by Speedily on Sat, 06 Mar 2010, 04:19, edited 1 time in total.

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Post by Squiggles » Sat, 06 Mar 2010, 04:57

I thought it was a solid axle? Or was that someone else's idea?

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Post by Speedily » Sat, 06 Mar 2010, 15:30

Squiggles wrote: I thought it was a solid axle? Or was that someone else's idea?


Yes it is one piece axle and one main drive chain

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Post by Electrocycle » Sat, 06 Mar 2010, 20:38

Speedily wrote:but why run two chains to the back wheels the chain i've got wont break ??
It'd make the setup a little bit simpler to build and for servicing - and you could run two smaller chains instead of one big one.

Either way it'll work :)
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Post by Speedily » Wed, 10 Mar 2010, 21:10

Controllers are here Image
Performance:

Can deliver 1000A continuously if liquid cooling is used, or for 15-20 seconds out of every 90-120 on air cooling alone. This limit can be unlocked for racing to deliver up to 1400A for short periods only! (hmm 10 sec is a very short time)   Image
Can operate on 10V minimum to 342V maximum




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Post by Johny » Wed, 10 Mar 2010, 21:46

Very nice controllers. Give the Zilla's a run for their money.
It would be good if there was an Australian distributor - they don't list one on the website. Did you bring them in from the USA?

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Post by Speedily » Wed, 10 Mar 2010, 22:08

I'm the Australian Dealer Image for them, I'm just getting all the stuff sorted out at this end(website) and then i'll start selling them

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Post by Johny » Wed, 10 Mar 2010, 22:14

Good! Image
I hope they give you a good margin so the price is reasonable. Image

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Post by Speedily » Wed, 10 Mar 2010, 22:25

The price is on par with whats out there and i'll be doing a deal or two for the open month Image

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Post by Speedily » Fri, 09 Apr 2010, 03:00

The start of the twins.. the drive ends are 38.1 diameter

Image

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Post by bontar hoklin » Thu, 03 Jun 2010, 02:12

I have been looking for such for quite some time.I saw one of my friends having done it, and looked awesome.Though i admired it,the price made me not purchase it at that time.
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Post by Speedily » Sun, 22 Aug 2010, 22:54

Update time.

Motors are here so time to start fitting them.


Here are some photos of the build so far



Image

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Post by EV2Go » Mon, 23 Aug 2010, 00:46

Still waiting on my motor, hoping it will be here really soon. It's on the water and should be here any day now.

Anthony did you have to modify the cable contact lid to get it exposed like that or does it just clip off?

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Post by Speedily » Mon, 23 Aug 2010, 04:14

EV2Go wrote: Still waiting on my motor, hoping it will be here really soon. It's on the water and should be here any day now.

Anthony did you have to modify the cable contact lid to get it exposed like that or does it just clip off?

it just clipped off

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Post by EV2Go » Thu, 23 Sep 2010, 17:37

Just looking at the gallery, it's coming along nicely. I can't wait to see it run.. how long before you have it trackside?

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Post by Speedily » Thu, 23 Sep 2010, 23:29

All going to plan before Christmas :)

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Post by Speedily » Fri, 31 Dec 2010, 17:47

Update time
Haven't got the car going yet, getting alot closer. I have spent the last 4 weeks of spare time rebuilding the trailer and making it a covered in trailer and snug little home for my new baby. All going to plan the car will be on the track end of February. I am starting to get really excited about the impending rush of atrenaline..

There are plenty of pictures on the website of how its all been going.

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Post by EV2Go » Fri, 31 Dec 2010, 18:18

Launching with electric is going to be such a rush, I can't wait to see the videos Image

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