Search found 26 matches

by Barry Murfett
Mon, 07 Aug 2017, 08:00
Forum: For Sale/Wanted
Topic: 1986 BMW 318i EV for sale
Replies: 0
Views: 807

1986 BMW 318i EV for sale

Full electric home conversion done 8 years ago. 39 of 160Ahr Thunder Sky batteries, 8" DC Motor, Curtis controller. Has been driven for 8 years as an EV and so the batteries are getting tired. Crusing speed 95kph (flat road) , range 50km. Approx 400,000km on speedo, 55,000km as EV. Had engineer cert...
by Barry Murfett
Thu, 25 Jun 2015, 16:26
Forum: Batteries, charging, management and monitoring
Topic: Whats a battery life span
Replies: 13
Views: 2202

Whats a battery life span

My EV is now 6 years old and I calculated 1,200 cycles. I've had a few batteries completely fail and I've replaced them. The bank, as a whole, appears to have the similar capacity to new but cannot provide the same current so the car doesn't accelerate as quickly and the top speed has dropped. They ...
by Barry Murfett
Mon, 04 Mar 2013, 18:08
Forum: General EV Discussion
Topic: Curtis Controller Repairs
Replies: 1
Views: 743

Curtis Controller Repairs

I have 2 Curtis 1231C controllers which are both dead. Does anybody repair these? I suspect the suppliers reply will be to send back to America at my expence, which could be be a waist of money. I don't mind giving them to somebody to have a go. I am not in a real hurry as I have a temporary unit in...
by Barry Murfett
Wed, 16 Jan 2013, 19:55
Forum: Technical and conversion discussion
Topic: Low Resistance Tyres
Replies: 6
Views: 1469

Low Resistance Tyres

I will needing some new tyres on the front of my electric BM soon. I've heard a lot about low rolling resistance tyres and the ones on the back are labled as such. But, is one tyre better than another and is it just some writting on the side wall the keep the greenies happy? Is there a measurment fo...
by Barry Murfett
Fri, 23 Nov 2012, 14:47
Forum: Electric motors and controllers
Topic: Software for Curtis 1243
Replies: 1
Views: 1040

Software for Curtis 1243

I am not too sure what I am looking for. I think I need some software to configure a Curtus 1243-4302 controller.

Anybody any ideas?
by Barry Murfett
Wed, 28 Mar 2012, 14:47
Forum: General EV Discussion
Topic: Air Conditioning
Replies: 0
Views: 570

Air Conditioning

I have been playing with getting the air conditioner working in my EV. I have bought a 1440 V DC motor and ran a fan belt to the original air con compressor. (My main drive motor doesn't have a shaft out both ends). It sought of works, the electric motor is rated at 144 volts whilst me car is 120 vo...
by Barry Murfett
Tue, 17 Jan 2012, 14:55
Forum: General EV Discussion
Topic: Vic Registration for EVs
Replies: 1
Views: 829

Vic Registration for EVs

I've had a win. I just got a $200 cheque from VicRoads as a rebate on my over charged registration over 2 years. Full EVs get the same $100 rego discount (in Victoria) as hybrids and for some reason I was not getting my discount so they have sent me a cheque. I did have to chase it. I read about the...
by Barry Murfett
Sun, 12 Jun 2011, 18:13
Forum: Electric motors and controllers
Topic: Faulty Curtis
Replies: 4
Views: 1472

Faulty Curtis

I have the standard Curtis 1231C, it has been going fine for 2 years then it appears to have stopped. I run through the test steps on Page 29 (Fig 18) of the manual and all is OK until the 'Check for Controller Output' and there is no voltage coming out (B+ to M-). I wired up 12 volts to motor and i...
by Barry Murfett
Wed, 25 Aug 2010, 23:17
Forum: For Sale/Wanted
Topic: For Sale: Warp9, SuperCaps, Curtis Controller
Replies: 17
Views: 2181

For Sale: Warp9, SuperCaps, Curtis Controller

Stefan,

Are the super caps for Sale?

Can reply directly to BMurfett@gmail.com
by Barry Murfett
Wed, 25 Aug 2010, 22:51
Forum: Technical and conversion discussion
Topic: Air Con Motor
Replies: 4
Views: 1361

Air Con Motor

I want to get the air con going in my EV. The car originally had air con so I thought I would use the original compressor and drive it with a motor running off my batteries. My main drive motor does not have an auxilary drive shaft. Does anybody know where I can get a 1KW 120V DC motor? I looked at ...
by Barry Murfett
Fri, 09 Apr 2010, 16:01
Forum: Technical and conversion discussion
Topic: EV Car Wiring Diagram ?
Replies: 9
Views: 2706

EV Car Wiring Diagram ?

One comment on the ZEVA circuit diagram: It would appear that the emrgency red button is low voltage and just operates the contactors. I would prefer to see it directly cut the high power circuit. If somthing goes wrong in that EZMS box the red button may not function as required.
by Barry Murfett
Mon, 29 Mar 2010, 14:45
Forum: General EV Discussion
Topic: Temperature Gauge
Replies: 6
Views: 1039

Temperature Gauge

Does anybody know of a digital temperature gauge with a remote sensor which will go up to 100 degress C ? I am after a reasonablly priced unit to go on my Curtis controller and also the air outlet of my motor. I have manager to get the Curtis controller to switch in to over temperature go slow mode....
by Barry Murfett
Mon, 29 Mar 2010, 14:36
Forum: General EV Discussion
Topic: Throttle Potentiomenter
Replies: 8
Views: 1553

Throttle Potentiomenter

Well I pull the unit out and the actual varable resistor part has been sealed so I couldn't clean the contacts etc. It turns out to be an actaul Curtis product, PR6 ? I think.

I then increase the return spring pressure and this has stopped it being sticky.

A simple soultion in the end.
by Barry Murfett
Thu, 25 Mar 2010, 20:41
Forum: General EV Discussion
Topic: Throttle Potentiomenter
Replies: 8
Views: 1553

Throttle Potentiomenter

Thanks for the replies. I am not sure the actual make of the pot but it a silver box with an arm which rotates through 90 degrees and a micro switch bolted on the outside as an after thought. I have seen a few cars with them. It controls a Curtis controller. It has been in daily use for about a year...
by Barry Murfett
Mon, 22 Mar 2010, 14:41
Forum: General EV Discussion
Topic: Throttle Potentiomenter
Replies: 8
Views: 1553

Throttle Potentiomenter

I have the standard throttle potentioment (silver box with arm which rotates though 90 degress and a bolted in micro switch) which everybody appears to use. Mine has become sticky, I cannot depress the accelorator and get a smooth acceleration. Particuarly pronounced in reverse due to low gear r rat...
by Barry Murfett
Tue, 01 Dec 2009, 14:42
Forum: General EV Discussion
Topic: Towing a Generator
Replies: 26
Views: 3248

Towing a Generator

I was thinking.... To extend the range of an EV I could tow a small trailer with a diesel generator set in it. As I drive I might be drawing 100 amps so if I had the generator say charging at 50 amps it would increase my range by 50%. Stop for lunch for an hour then off you go again. I assume people...
by Barry Murfett
Tue, 24 Feb 2009, 16:50
Forum: General EV Discussion
Topic: Heater-- Demister
Replies: 91
Views: 19103

Heater-- Demister

I have recently put the ceramic core from a domestic 240 Volt fan heat in to replace the water heater core. Fortunately it is relatively easy to get at the orginal heater core on my car. I am running 120 Volts. The ceramic core would only draw 4 amps which is not enough to really work as a demister ...
by Barry Murfett
Fri, 13 Feb 2009, 19:56
Forum: General EV Discussion
Topic: Setup an e-xpert 502
Replies: 1
Views: 529

Setup an e-xpert 502

I've a TBS Electronics e-xpert 501 gauge on my car, all connected up and working. It runs through a 10:1 converter. I have 38 120ah Thunder Sky batteries. All the features work (volts, ampres, AH etc.) but I'm having trouble getting the State of Charge % to read correctly, it show a very high percen...
by Barry Murfett
Tue, 03 Feb 2009, 17:14
Forum: General EV Discussion
Topic: Insurance
Replies: 37
Views: 5036

Insurance

I have found an insurer at a reasonable rate. It is the Just Cars magazine insurance arm. The quote is about 20% more than my regular similar size petrol car. Vigil was the other insurer who gave a quote but it was too expensive. I was interested to note in the resent meeting minutes that somebody g...
by Barry Murfett
Tue, 16 Dec 2008, 19:37
Forum: General EV Discussion
Topic: Insurance
Replies: 37
Views: 5036

Insurance

Not going too well with getting insurance. So far the only company will to quote are Vigil. Refusal from AAMI, Shannons, RACV. I primarly just want third party property cover (you know the story, run in to a Rolls Royce). Which companies do people have their cars covered with? Could you please list ...
by Barry Murfett
Fri, 12 Dec 2008, 17:16
Forum: General EV Discussion
Topic: Insurance
Replies: 37
Views: 5036

Insurance

I've just been knocked back by the RACV for insuring my EV. Which insurance companies will insure EVs? Is there any thing I should or should not say as I am answering the questions about the car?
by Barry Murfett
Fri, 28 Nov 2008, 23:51
Forum: General EV Discussion
Topic: Reverse Cycle Air Conditioning
Replies: 12
Views: 2984

Reverse Cycle Air Conditioning

Does any body know where I can get some pricing and purchase these Masterflux compressors and controllers? They look lick a good unit for an air con in an EV. Is there any other suppliers of 120volt DC compressors for car air con applications. I have contacted Masterflus and they haven't answered me...
by Barry Murfett
Mon, 24 Nov 2008, 15:47
Forum: General EV Discussion
Topic: Quiet Vacum Pump
Replies: 2
Views: 586

Quiet Vacum Pump

The vacum pump I am using makes a bit of noise as it is pumping the air out. The noise appears to be from the air outlry tube. I have made up a tempory 'silencer' by perforating a piece of plasctic tube and wrapping it in some open weave cloth. What do other people do? Is there a standard method used?
by Barry Murfett
Wed, 22 Oct 2008, 14:56
Forum: General EV Discussion
Topic: VIC Roads Auto Engineers
Replies: 12
Views: 3078

VIC Roads Auto Engineers

The engineer that Ross Blade uses is Peter Turner. Peter is based in Guildford which is near Harecourt where Ross is. I am also doing a BMW. My intial VicRoads engieer contact was with Archie Robinson. (Yes I beleive he did the CERES cars. Contact Rhys Freeman <rhys@ceres.org.au> for more info). I h...
by Barry Murfett
Thu, 04 Sep 2008, 23:54
Forum: General EV Discussion
Topic: BMW 318 conversion
Replies: 6
Views: 1070

BMW 318 conversion

I am 3/4 of the way through doing a E30 318i conversion. I am using DC motor and 120volts (38 X 120AH batteries). Still don't know range and speed till it actually hits the road.
I have the measurments of the bell housing which will be very helpfull for adapter plate machining.