Budget UK conversion

  • LRBen
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Replied by LRBen on topic Budget UK conversion

Posted 1 year 10 months ago #208007
Thought I might give a bit of an update on this as quite a bit has changed in the last year.
I took it off the road around about July last year as the insurance ran out and I had some upgrades that I wanted to do.
Firstly I upgraded the battery to a 12kWh BMW hybrid pack as I mentioned in my last post. I also upgraded the control system from the ECU that I designed initially to the “Zombieverter”. An open source ECU from Damien Maguire, more information of which can be found on the Open Inverter Forums.
The Zombieverter turns a lot of the conversion into almost a plug and play setup. Utilising canbus to talk to the components as if they were still in their original environments. I had to do a bit of work in incorporating the Outlander motor control messages into Zombie, but with some help from the Open inverter forums it wasn’t so bad and now the Outlander Motor has native support in this application.
The Zombieverter already supported the Outlander Charger and BMW battery pack contactor box so that was a very easy setup.

I also removed the gear linkages completely and just left it in 2nd gear. I replaced the gear stick with a simple Forward, Neutral, Reverse switch. I also switched out the radio for a
single din android auto touchscreen. I pulled out the middle vents and 3d printed a mount for my BMS display and also a holder for my phone. Still haven’t gotten around to getting any more of the dash dials to work, however I might do a bit of work on that later this year.

Back on the road in November, the perfect time for convertibles! Still no heating which makes the commute to work a bit of a slog in winter. But it’s proved very reliable. The cold weather has a big effect on range, in the winter months when the battery temperature goes below 0c it will struggle to do the 28 miles to work. Now in summer I can get over 40 miles with the same battery with an efficiency of around 4.5 miles per kWh.

In spring time regen was added to the list of Zombieverter features and I was part of the initial testing of that feature. Regen is something I thought I didn’t really need. But well tuned regen on the throttle is completely transformational to driving. It gives you effortless control over your speed with just one pedal and I rarely find myself needing the brakes anymore. I have it setup to light up the brake lights if my regen goes past a certain percentage, which I think is rather important!

I haven’t got anymore photos, because honestly I don’t take much care of the aesthetics of this car so it doesn’t look great. It’s my daily workhorse, rear window is covered in Duct tape where the plastic has split, the interior is pretty messy, and the outside is rather run down. But it never lets me down and saves me £10 a day in fuel commuting to work.

Future plans are to maybe look at getting some of the dash dials working again. I also need to look at the suspension again. Not sure if it’s cheap Poly bushes or something off with the hydrolastic suspension but it’s a very hard ride.
Apart from that I don’t really plan on doing that much to this car in the near future. I have a Land Rover 110 I’m in the middle of converting right now. When that is done I might revisit the F and maybe do another one from the ground up. I’m thinking a bigger pack, around 24kWh, with CCS fast charging would give me all the range I need. Maybe a slightly more powerful motor, 100kW rather than the 70kW I have now would probably be nice. Also I might have to invest in a cabin heater next time around!
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  • Cobber
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Replied by Cobber on topic Budget UK conversion

Posted 1 year 10 months ago #208010
in the South East Australian climate (Victoria, Tasmania, much of NSW and parts of South Australia) both heating and air conditioning are essential for a daily driver without those two little luxuries a car would be next to useless in reality. In the UK climate you could probably do without AC but I imagine that a heater is absolutely essential.

So whilst cars designed to be EVs have these features and more, integrated into their designs, these features may prove difficult to incorporate into the conversion, especially in a the limited interior space available in a car as small as the MGF.
That's not  to say just that these problems can't be overcome, but it is to be considered. 

You harsh suspension will most likely be because the hydra-gas spheres have probably lost all their nitrogen gas charge and have been pumped up with fluid to build up the ride height to compensate. Which bring us to another potential problem with doing a conversion on a MGF..... whereas a car with a conventional suspension system can have stiffer or softer springs easily made and installed to compensate for the inevitable differing weight and balance of the conversion, this may prove difficult with an MGF, as such a TF with it's conventional suspension would be a much more suitable candidate.

"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

Last Edit:1 year 10 months ago by Cobber
Last edit: 1 year 10 months ago by Cobber.

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  • EllisoJo
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Replied by EllisoJo on topic Budget UK conversion

Posted 1 year 10 months ago #208011

Your harsh suspension will most likely be because the hydra-gas spheres have probably lost all their nitrogen gas charge and have been pumped up with fluid to build up the ride height to compensate. Which bring us to another potential problem with doing a conversion on a MGF..... whereas a car with a conventional suspension system can have stiffer or softer springs easily made and installed to compensate for the inevitable differing weight and balance of the conversion, this may prove difficult with an MGF, as such a TF with it's conventional suspension would be a much more suitable candidate.

I totally agree with Cobber's observations above.

Congratulations on achieving the upgrades you have incorporated.  A cheap TF with an engine with HGF maladies would be a good starting-point for your next iteration.  You may recall that I visited a couple of years ago with a Silver TF.

I now drive an EV as well as that TF.  I found the single-pedal style of driving tricky to get used to, and I had the same thought about brake lights!  Now that I AM used to it, I find that it encourages a relaxed and energy-efficient, (= range increasing) driving style.

Good luck with the Land Rover 110!
 

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Replied by Airportable on topic Budget UK conversion

Posted 1 year 10 months ago #208012
As I mentioned on another post there was an f on eBay with a Tesla motor, it was unfinished but at £800 I was sorely tempted.
However as I noted elsewhere, it could be a health hazard, I had one hell of a bollocking for buying a set of wheels, just think of the problems I’d have suffered if I’d bought that.
The long silence could be attractive though.
M

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  • Cobber
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Replied by Cobber on topic Budget UK conversion

Posted 1 year 10 months ago #208013
Yes there is a big problem with possibility of upsetting the Minister for War to the point of them crossing the floor and voting with the opposition!

"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

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  • LRBen
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Replied by LRBen on topic Budget UK conversion

Posted 1 year 10 months ago #208020
On the heater front, it would be quite easy to put one into the current setup. I have enough space in the engine bay to mount a HV water heater, again the Outlander heater is commonly used. Then I can route it through the hoses from the cabin heater matrix that already come out into the engine bay. Alternatively I could replace the heater matrix with a HV PTC heater for direct heat, then route the HV cables in the same manner as the original hoses. But that is a bit more work
If I had some spare battery capacity for my current commute, or a smaller commute I would have definitely do the water heater option. As it is I generally just take the spare ICE car if the windscreen has frosted up and take that as the sign that it’s too cold for the MG that day. The rest of the time I use a coat and heated seats.

On a related note I am putting a PTC heater element from a VW ID3 into my Land Rover 110 heater box. Actually that part I have already done and tested, it can push out up to 10kW of heat! So the Land Rover will not be cold, nor will the windscreen take long to defrost. But the battery on that will be at least 50kWh.

Suspension wise I did get all the spheres refurbished during the original conversion process. However I am putting some extra weight over the front which is probably not ideal. One idea I have seen in the past is to replace the front spheres with that from the Rover Metro, same subframe but the spheres were designed for the weight of the engine. So they should be calibrated better for taking the weight and also be a straight swap.

As for F or TF for a future conversion, current UK rules make the F more favourable. As pre 2001 vehicles are eligible for 0 tax as you can change the engine size to 0cc. Anything newer (like my F by two months) is taxed on CO2 emissions which cannot be changed on a V5 logbook. I also personally prefer the look of the F headlights.
However there are some changes on the way regarding conversion regulations (not anytime soon but the cogs are moving) so this may change things.
 
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Replied by LRBen on topic Budget UK conversion

Posted 1 year 10 months ago #208021

I do remember. It’s changed quite a bit since you last saw it. I think you might have seen the starting strip down of the 110 project back then as well.
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Replied by Cobber on topic Budget UK conversion

Posted 1 year 10 months ago #208022
It is good the hear that you have solutions in mind to tackle the lack of a heater.

I'm glad that you find the aesthetic of the MGF headlights  a positive as they have nothing else going for them, they are functionally speaking, bloody awful!
A birthday candle sitting in half a beer can with an old plastic bag as a lens would make a more effective headlight!
 

"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

by Cobber

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Replied by BruceTF135 on topic Budget UK conversion

Posted 1 year 10 months ago #208074

That is a superb conversion and very well written up.
Would it have been possible to locate all the batteries where the fuel tank was in order to retain the use of the passenger seat ?
Did it just need a bog standard MOT or an additional engineers report ?
Here's a weird thing, not related the the post other than its very presence.  This post is attributed to me as a visitor.

Now, I have a vague interest in EV conversions to the MGF/TF but not so much as to offer any opinions.

I most certainly didn't write this post.  I know it was over a year ago but this is the first time I have seen it.  It doesn't particularly bother me so I see no reason to ask that it be deleted  (I can't delete it myself).

Can anyone explain what might be going on here?

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Replied by Airportable on topic Budget UK conversion

Posted 1 year 10 months ago #208075
This post is attributed to me & as with Bruce I was not the author. Although I have an interest in an EV conversion, I wouldn’t be moved to write a critique on the original author’s work.
There is, on eBay, an f complete with a Tesla motor already installed & with many other interesting updates, it is/was on at £800; I consider that a bargain, especially as it comes with the original engine & all the other original parts which have been removed.
Had I had more time I would have snapped it up, although there would have been resistance from my wife (hardly a great shock considering the number of pies I have my fingers in).
M

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Replied by Cobber on topic Budget UK conversion

Posted 1 year 10 months ago #208076
When I look at the post in question it has my name on it, this has happened before, who ever is looking at it will have their name on it.
There is a glitch in the software that is doing this, It had been cured but it's probably returned with the software upgrade.
I'll bring it to the attention of the senior admin.

I've brought it to their attention and I have no doubt it will be sorted in the fullness of time. Sorry for any confusion caused.

"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

Last Edit:1 year 10 months ago by Cobber
Last edit: 1 year 10 months ago by Cobber.

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Replied by generous_dad on topic Budget UK conversion

Posted 1 year 10 months ago #208078
I did not write it either but attributed to me.
I have trouble remembering my own credentials, never mind accessing someone elses log in.

Is any Mod able to work it out?
Last Edit:1 year 10 months ago by generous_dad
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