Search found 186 matches

by roddilkes
Wed, 22 Aug 2012, 17:51
Forum: Members Machines
Topic: barnard's Toyota MR2 - now Mr240
Replies: 213
Views: 30108

barnard's Toyota MR2 - now Mr240

Hi Barney,

If I am reading the data correctly B45 seems to be swinging alot higher than the other cells when on charge.

Is B45 one of the weak cells?
by roddilkes
Sat, 18 Aug 2012, 04:31
Forum: Members Machines
Topic: barnard's Toyota MR2 - now Mr240
Replies: 213
Views: 30108

barnard's Toyota MR2 - now Mr240

Maybe something amiss there I don't know for sure.

Can you use the cell loggers to measure the cells as they are approaching end of charge?
It would be useful to have this info just to check if the ones that are weak are getting fully charged.
by roddilkes
Fri, 17 Aug 2012, 11:31
Forum: Members Machines
Topic: barnard's Toyota MR2 - now Mr240
Replies: 213
Views: 30108

barnard's Toyota MR2 - now Mr240

Hi Barney,

What is your peak charge voltage?
That is, what is the highest voltage your charger gets to before switching off?
by roddilkes
Sun, 15 Apr 2012, 04:31
Forum: EV Racing
Topic: Grass roots electric racing class
Replies: 10
Views: 1344

Grass roots electric racing class

I agree Ian that converted cars would make for great racing. I have voted for Electrathon style vehicles because they are so accessible financially and allow a huge amount of design innovation. You can get on the track for $1500 (plus a squillion hours of your spare time). Speeds are still slow and ...
by roddilkes
Sun, 15 Apr 2012, 03:54
Forum: EV Racing
Topic: Australian Grass Root EV Racing
Replies: 47
Views: 7251

Australian Grass Root EV Racing

WAEVA have the WA Electrikhana happening on Thurs 26th April starting 3pm. The day after Anzac Day. Its an informal show & drive of electric vehicles at the RAC Driving Centre on Grogan rd near Perth International Airport. A skid pan is available for eV Challenge type cars to strut their stuff. The ...
by roddilkes
Tue, 06 Mar 2012, 06:12
Forum: Technical and conversion discussion
Topic: Airbags
Replies: 8
Views: 1621

Airbags

Thanks for the info guys. That gives us something to work off. Could be more challenging than I thought.
by roddilkes
Sun, 26 Feb 2012, 19:51
Forum: Technical and conversion discussion
Topic: Airbags
Replies: 8
Views: 1621

Airbags

Does anyone have experience converting a car with airbags?
I am helping a friend convert a late model Mazda RX8 to electric.

Before we start pulling it apart I would like to find out any regulatory and or safety issues with airbags.

Any informed advice gratefully accepted.
by roddilkes
Sun, 25 Sep 2011, 21:32
Forum: EV Racing
Topic: WA EV Challenge
Replies: 29
Views: 7889

WA EV Challenge

You guys interested to lend a hand in the pits for River Raiders team?

At this stage we have enough drivers but pushers and moral support also welcome.
Planning on two cars this year with new motors, three if we can swing it.
by roddilkes
Fri, 23 Sep 2011, 17:51
Forum: EV Racing
Topic: WA EV Challenge
Replies: 29
Views: 7889

WA EV Challenge

There are plenty of kids/adults willing to take the morning off school/work to attend and compete. Yours truely is excited anyway.
by roddilkes
Thu, 22 Sep 2011, 00:05
Forum: EV Racing
Topic: WA EV Challenge
Replies: 29
Views: 7889

WA EV Challenge

The WA eV Challenge is on again Monday October 24th. This year it is at the RAC driving centre near Perth airport, a real race track so things could get interesting. http://evchallenge.org.au/Ev_Challenge/Home.html Check out this video of last years event: http://www.youtube.com/watch?v=Es8R8XXw2CM ...
by roddilkes
Tue, 20 Sep 2011, 19:31
Forum: General EV Discussion
Topic: Winston
Replies: 2
Views: 2367

Winston

.
by roddilkes
Fri, 16 Sep 2011, 17:29
Forum: Batteries, charging, management and monitoring
Topic: Winston Chung accused of Fraud
Replies: 1
Views: 963

Winston Chung accused of Fraud

Edit - moved to general discussion, more appropriate.
by roddilkes
Fri, 05 Aug 2011, 15:10
Forum: Batteries, charging, management and monitoring
Topic: LFP users, who can measure cell's capacity?
Replies: 7
Views: 1486

LFP users, who can measure cell's capacity?

I have noticed the same thing on two cars now with Thundersky batteries. My EV Mighty boy was about two years old with LFP batteries and the capacity was down from 90Ah to about 75Ah. Admittedly that pack had a hard life and it used very early model LFPs. My current car I noticed the other day the B...
by roddilkes
Thu, 28 Jul 2011, 16:48
Forum: Technical and conversion discussion
Topic: Mini or Moke conversion
Replies: 25
Views: 7876

Mini or Moke conversion

Darren Hamley has converted a Moke in Perth. He drives it every day and it is a great conversion. Mokes are very light weight and have plenty of space in the back for batteries, very simple. I suspect the crash safety rating would be somewhat less than a Jumbuck (which apparently is not saying much ;)
by roddilkes
Sun, 17 Jul 2011, 18:57
Forum: Batteries, charging, management and monitoring
Topic: "Winter effect" or dying cell?
Replies: 17
Views: 2609

"Winter effect" or dying cell?

Advice from my experience: - Charge at night and use "Smartpower", ie time of use tariff. Much cheaper. - Use a timer to start the charging so it will usually be finished at about the time you want to drive in the morning. This will keep your batteries (and maybe your bum) warmer on the cold morning...
by roddilkes
Fri, 15 Jul 2011, 07:37
Forum: Batteries, charging, management and monitoring
Topic: "Winter effect" or dying cell?
Replies: 17
Views: 2609

"Winter effect" or dying cell?

Temperature does have a big effect on LFP cell performance. If you can keep them above 20 degrees you will notice much better performance. Unfortunately they don't warm up much with use, unlike an IC engine.
by roddilkes
Tue, 14 Jun 2011, 18:05
Forum: Technical and conversion discussion
Topic: AC vs`DC debate
Replies: 25
Views: 4520

AC vs`DC debate

Good to see some punters are taking up the Proton Jumbuck for conversion :) It is of course the perfect candidate. Front wheel drive for easy engine installation, rear tray which can be cut to drop the battery box into, good load carrying GVM, simple layout. My car has an almost perfect 50:50 weight...
by roddilkes
Sat, 28 May 2011, 07:05
Forum: Batteries, charging, management and monitoring
Topic: Battery Charging
Replies: 3
Views: 898

Battery Charging

As long as the peak charge voltage is not more than about 140V for a 38 cell LFP pack it should be fine.
by roddilkes
Sat, 28 May 2011, 06:54
Forum: Technical and conversion discussion
Topic: Power Steering - How do you control it?
Replies: 2
Views: 912

Power Steering - How do you control it?

I sourced these power steering pumps for EV Works and still have the first prototype in my Jumbuck. I have a switch on the dashboard to switch it off but generally leave it on all the time. The oil actually flows freely through the PS system until you put a load on the steering by turning it, then t...
by roddilkes
Thu, 19 May 2011, 14:08
Forum: Electric motors and controllers
Topic: Faulty ZAPI
Replies: 8
Views: 2062

Faulty ZAPI

Unfortunately the ZAPI controllers had a bit of a reputation for smoking. It is a shame as they looked good on paper. I nearly bought one years ago when I was converting the Mighty Boy. The regen feature was attractive but I subsequently found out that it doesn't work well with series DC motors anyw...
by roddilkes
Wed, 20 Apr 2011, 21:06
Forum: For Sale/Wanted
Topic: Wicom BMS for sale
Replies: 0
Views: 220

Wicom BMS for sale

I have a Wicom BMS for sale for a good price.
It is for 32 cells and has the touch screen.
It is unused, purchased late last year, I had every intention of testing it but got waylaid.

Below cost price!
PM or email me about it.
by roddilkes
Wed, 20 Apr 2011, 00:03
Forum: Batteries, charging, management and monitoring
Topic: a good BMS and charger with very competitive price
Replies: 2
Views: 1038

a good BMS and charger with very competitive price

If anyone is interested I have a Wicom BMS for sale for a good price.
It is for 32 cells and has the touch screen.
It is unused, purchased late last year, I had every intention of testing it but got waylaid.
PM or email me about it.
by roddilkes
Wed, 30 Mar 2011, 22:34
Forum: Technical and conversion discussion
Topic: AC-50 or BLDC for Calibra conversion?
Replies: 39
Views: 9661

AC-50 or BLDC for Calibra conversion?

312V controller 94-96 cells, I am running 90 cells~288V currently, due to upgrade to 94 shortly. I have in the past seen 350A at 270V on the meter but the current controller has been derated to about 280A peak. It is still pretty punchy esp. for overtaking. The motor does get quite hot on a 100km ru...
by roddilkes
Wed, 30 Mar 2011, 18:43
Forum: Technical and conversion discussion
Topic: AC-50 or BLDC for Calibra conversion?
Replies: 39
Views: 9661

AC-50 or BLDC for Calibra conversion?

Scotto, It may be worth having a look at my car as a baseline. Thanks for the mention Richo. I understand you are in Perth. If you can make it down to MR I would be happy to show you and discuss BLDC details. I have updated the page with more info: http://www.ev-power.com.au/-ROD-S-GARAGE-.html I ha...
by roddilkes
Tue, 22 Mar 2011, 01:55
Forum: Batteries, charging, management and monitoring
Topic: Dashboard Display Modules and Touchscreens
Replies: 37
Views: 6091

Dashboard Display Modules and Touchscreens

Well considering you don't have much actual experience I think people reading your posts should take your commentary with a large grain of salt. Relaying second hand information is quite different to experienced individuals providing good advice. This forum could use posts from a few more people wit...