 | Home > Maintenance & Modifications > Pondering an electric conversion. Advice welcome |
 
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 862  
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Thanks for the info:
Power steering pump comes with the kit. Hella do a Vacuum pump for the brakes. Will do a bit of research and see how much fettling is needed. https://www.hella.com/microsite-electronic...ps-43.html 
I'm not sure on the DC-DC converter as this will be sourced once the battery is confirmed. But these are readily avialable. I'm stumped on the speedo being controlled by the ECU. I thought it was just a speed sensor. See below: Anyone know what year model they changed them? Click image to enlarge Once the 12v system is powered up. what other bits will need tweaking? Ignition definitely... BIG question.... Motor into clutch makes it manual. Will down tune the motor to run at a max of 4000rpm. (Easy according to supplier) Keeps the interior the same. However if you bypass the clutch completely and use a reduction drive it becomes automatic. Probably the feel of a "real" electric conversion. Motor will then be able to run at max RPM but the drive will reduce this to not wreck the transfer box. possibly need a different electric motor with a bit more grunt. Hmmm.... Will also have to alter the interior a bit but not much. |
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15th May 2022 7:57am |
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| mikeh501 Member Since: 07 Jan 2013 Location: United Kingdom Posts: 1142
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You can get a gps speedo which looks fairly Oem. Greeni has one. Not cheap but totally self contained.
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15th May 2022 9:28am |
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2545 
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The Td5 speedo is not ECU controlled. It’s the same part (made by VDO) from 1999 to 2006.
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15th May 2022 9:40am |
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| mikeh501 Member Since: 07 Jan 2013 Location: United Kingdom Posts: 1142
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Does the transfer box transducer go straight into the speedo then?
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15th May 2022 10:03am |
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 862
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Thanks Retroanaconda
That's what I thought. Good to clarify though. And thanks for your drawing. 
Don't like the idea of a GPS speedo. it may work but can't see the need.  |
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15th May 2022 10:31am |
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2545
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Yes. You could use the older type of speedo but the Td5 one is far superior. |
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15th May 2022 8:43pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16858 
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It's the TD5 Disco2 which has the speedo under ECU control, it's derived from the ABS wheel-speed transducers.
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15th May 2022 9:27pm |
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 862
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Blackwolf
As one of the more knowledgeable contributors anything to add on the above potential issues? What should I expect to just work and what will need a lot of playing?  |
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15th May 2022 9:40pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16858
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You're starting with a Defender, so expect nothing to work!
I don't think you're the first to do this, I am sure I have read of an electric conversion with a Tesla motor connected directly to the transfer box and batteries everywhere. I don't see any reason why it couldn't be done. Once you remove the engine and its supporting electrical system from the vehicle the remainder of the 12 Volt system is very rudimentary. It would be simpler to start with a vehicle without a/c and without ABS, although I see no reason why both shouldn't also be made to work with an EV conversion. I suspect however that this conversion, if done to a decent standard, will be a lot more expensive than you expect. It will suck up many, many hours in labour, and if you are paying for that labour it will really mount up. If your engineering skills are up to it, DIY would be much cheaper. |
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15th May 2022 11:21pm |
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| Ramsay Member Since: 30 Sep 2015 Location: Moffat, Dumfries & Galloway Posts: 625 
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Did you find these guys on your search for companies https://www.electrogenic.co.uk/cars/land-r...icultural#
I like their approach in not going for all out performance but enough grunt to get you around off road. I am interested in how you get on as I am looking at a conversion. As the ranges are short I think converting my Lightweight might make more sense than the TDi. Again it would then do all my short journey work for firewood or ranger work on solar electric. 1995 Defender 110 CSW 1971 SIIA Lightweight |
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17th May 2022 8:13pm |
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 862
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Hi Ramsey
Yes. Their HV solution seems to be quite appealing. However i stopped after receiving the availability and price. I also quite like the idea of working out all the bits of the puzzle too. |
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18th May 2022 6:40pm |
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| LiftedDisco Member Since: 17 Aug 2014 Location: Towcester Posts: 349 
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I’ll watch this with interest…
I take it you’ve come across Vintage Voltage in Wales… I think they have done a number of Land Rovers and am pretty sure that they mate the motor direct to the transfer box. I also have a feeling they needed to run the motor backwards due to their placement of it… I think the direct to transfer box is the way to go - full torque right through the range with no gears to worry about and therefore no additional point of weakness, plus the weight saving of ditching the gearbox. I know the FD at Electrogenic and their route is to retain the gearbox - apparently this is more to do with keeping original stuff in the vehicle in case owners want to revert to ICE at a later date rather than optimising the EV element. In terms of base vehicle, I’d echo the comments above - keep it as simple as possible. Note, losing the gearbox would eliminate your speed sender, so you might end up with a GPS speedo. The other useful resource for bits along the way might be Car Builder Solutions! Good luck, keep us informed… |
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18th May 2022 6:56pm |
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| katana069 Member Since: 28 Mar 2022 Location: Northern Ireland Posts: 43
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18th May 2022 11:23pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16858
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No, it's on the back of the transfer box so won't be affected by the removal of the gearbox. |
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18th May 2022 11:44pm |
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