Author Topic: Electric Esprit  (Read 1600 times)

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Offline Chuck Nukem

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Electric Esprit
« on: Monday,June 03, 2019, 12:22:13 PM »
Revolutionary minds were at work to undertake the of powering an Esprit with 1,000 D batteries...Take notes Elon...

https://www.copart.com/lot/29552319

This is how its done boys.

Offline surfguitar58

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Re: Electric Esprit
« Reply #1 on: Monday,June 03, 2019, 12:43:22 PM »
First person who says "that'll buff right out" will be banned for life!

Yikes! We are definitely still on the learning curve when it comes to electric cars. The one Richard Hammond rolled down a hill in Switzerland apparently burned for 3 days!

https://www.engadget.com/2017/06/10/amazon-star-richard-hammond-involved-in-ev-crash/

t
"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away."
Antoine de Saint-Exupery

Offline 4129R

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Re: Electric Esprit
« Reply #2 on: Monday,June 03, 2019, 01:04:48 PM »
Samsung Galaxy batteries?

Offline Rosco5000

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Re: Electric Esprit
« Reply #3 on: Monday,June 03, 2019, 03:28:54 PM »
Ouch, the problem with fiberglass cars is that they burn particularly well.  Yuck what a mess, though I did think a lightweight Lotus would make a good electric conversion candidate if the gas supplies ever dried up completely.
First person who says "that'll buff right out" will be banned for life!

Yikes! We are definitely still on the learning curve when it comes to electric cars. The one Richard Hammond rolled down a hill in Switzerland apparently burned for 3 days!

https://www.engadget.com/2017/06/10/amazon-star-richard-hammond-involved-in-ev-crash/

t
As for burning electric cars we just had a local accident on a boat ramp where the electric/hybrid SUV rolled into the water when it wasn't put in park.  When they pulled the car out of the water it proceeded to light itself on fire...  Maybe not the best choice for launching your boat.
1974 Europa Special
1969 Europa S2
1970 Lotus Elan +2
1978 Austin Mini - 1275, big brakes
1991 Ford Explorer - Lifted on 33s, custom lift and radius arms
2005 Chrysler 300C - chipped, lowered 22s
2011 Cadillac Escalade - Stage 3 cam, Headers, CAI, 2,600 stall converter

Offline lotusfanatic

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Re: Electric Esprit
« Reply #4 on: Monday,June 03, 2019, 09:28:06 PM »

Offline JR73

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Re: Electric Esprit
« Reply #5 on: Tuesday,June 04, 2019, 02:46:19 AM »
Ouch, the problem with fiberglass cars is that they burn particularly well.  Yuck what a mess, though I did think a lightweight Lotus would make a good electric conversion candidate if the gas supplies ever dried up completely.

That's probably what Mr Musk thought with the Tesla Roadster - Basically an electric Elise that was built at/near Hethel.

At least there's a useful front repair section for someone on that Esprit! Saying that i bet the commonly smashed bits under the front (radiators, fans and ducting etc) have been removed for the conversion....

I read something last year about electric cars involved in accidents are meant to be quarantined for so many days afterwards to be monitored for fires.... Fire brigades have been issued with instructions as to where to cut a section out of Teslas in order to safely severe the power lines to isolate the batteries (which very much reduces the vehicle to scrap) in order to lessen the chances of them from bursting into flames....

Think I'll stick to petrol power for the foreseeable......!
« Last Edit: Thursday,June 06, 2019, 03:54:34 AM by JR73 »

Offline Bodzer

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Re: Electric Esprit
« Reply #6 on: Saturday,June 08, 2019, 01:24:53 AM »
I suppose I had better stick my head above the parapet now. I was in the process of converting my Europa to electric. I tested it recently and it went just fine (and it also stopped just fine). I’m using four Tesla model S Battery modules running a system voltage of 100 volts. They are widely acknowledged to be the best batteries out there for energy density. However, they are quite precious. They mustn’t be over discharged then over charged. They must be charged when the cell temperature is above freezing. There must be some battery management system in place or a conflagration of biblical proportions WILL occur. Looking at the pictures of the Esprit it looks like it was using earlier Tesla battery modules from an electric SMART car.

Like everything, it requires a measure of oversight. I popular myth is that EVs are maintenance free. Wrong. It’s a car designed and made (via robots) by humans so they still need maintenance.

As for burning cars. I seem to recall that early S1 Esprits didn’t need much encouragement to catch fire! Google “supercars on fire” and dozens of photos of very expensive and modern cars/bonfires will come up. I believe petrol also catches fire! I think something like 70 cars a day catch fire in the US alone. In fact, last year I drove down from Chicago to Cape Girardeau and there was a flaming car at the side of the road.

My Europa is off the road again. Not because of the drivetrain but because I’ve stripped the paint off and I’m going to repair the Fibreglass. Then it’s due for a new coat of paint. The motor is in the Elan (gasp!). The process is fully reversible. I’m doing it because I like the engineering/systems integration challenge.

Ducking for cover now!




Offline surfguitar58

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Re: Electric Esprit
« Reply #7 on: Saturday,June 08, 2019, 04:30:21 AM »
I think it is wonderful, Bodzer, that you are coming out as electric. You are very brave.  ;)

All kidding aside, this is a subject that fascinates me and I would love to dig into your project deeper. I'm guessing you are already following this guy's series on youtube: https://www.youtube.com/watch?v=ZfkNQo0ZB6Y

I got fairly far down the road trying to make an electrified boat (13 foot Boston Whaler). The original thought was to buy a wrecked golf cart and simply transfer the battery, motor and controls into the boat. The weight of the lead acid batteries compelled me to look into alternative batteries, then specialized charging systems, controls, better motors... Soon it was snowballing into a very expensive project and it got shelved.

I for one would be very interested to learn more about your project. I will be keeping mine gas though. Jay leno once said it was the automobile that saved the horse as a hobby. When electric cars take over the world, gas cars will still be around for eccentric enthusiasts like us.

Tom
"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away."
Antoine de Saint-Exupery

Offline Bodzer

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Re: Electric Esprit
« Reply #8 on: Saturday,June 08, 2019, 09:52:14 AM »
Thanks Tom for your kind words.

Yes, I have watched Rich before and he is very entertaining! He’s not too far from you I think.  It is pretty amazing what he has been able to do with the wrecked Teslas. I seem to recall that we have your State to thank for allowing Teslas to be repaired by non-Tesla facilities. Massachusetts forced them to comply with the “right to repair” bill. If you want to see what a Tesla battery module fire looks like, have a look at this episode: https://youtu.be/of01p0Q-yUM. He admits that it was over charged.

Personally I have found this series to be the most informative and it what got me interested five years ago. https://youtu.be/75uKVPr_evk

There is one other but it’s not for people of a sensitive disposition. I can send it onto you if you like. The presenter is brusque and opinionated. However, he has dispelled many myths that are (dangerously) spread by so called experts. His analysis of the technology is spot on and it makes for addictive viewing. I like him but I know many others don’t.

I’m not for a second going to say that it’s an economical endeavor. It’s just for fun. Isn’t that the the same as owning a Lotus?!

Regards,

Offline BDA

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Re: Electric Esprit
« Reply #9 on: Saturday,June 08, 2019, 10:10:57 AM »
Bodzer, I wish you had kept  us in the loop with your progress on your electric Europa! That would have been interesting and I don't think you'd have to keep your head down. After all, if Richard Winter can say his favorite Europa was a Smart car engine swap, pretty much anything should be fair game! If you have pictures, time, and inclination to let us know how it progressed, I think a lot of us would be interested.

Offline JR73

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Re: Electric Esprit
« Reply #10 on: Saturday,June 08, 2019, 04:36:37 PM »
Bodzer, your project sounds very interesting - are you going to post some progress info and pics of it?
I don't see why you would have to hide it away from anyone on here?

I doubt there will be anyone with a faster accelerating Europa?!

Jon


Offline Rosco5000

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Re: Electric Esprit
« Reply #11 on: Saturday,June 08, 2019, 09:05:56 PM »
Bodzer  that sounds like an amazing project!  I personally think down the road if oil dries up our little British sports cars maybe some of the easier types of cars to convert to electric for years of enjoyment. I hope you have taken lots of pictures and choose to share the build at sometime. But as a new type of conversion  I can understand wanting to keep it under wraps until it is complete. Nothing like copy cats and opinions from the ones not taking the leap to new technologies. Good Luck!
Ross
1974 Europa Special
1969 Europa S2
1970 Lotus Elan +2
1978 Austin Mini - 1275, big brakes
1991 Ford Explorer - Lifted on 33s, custom lift and radius arms
2005 Chrysler 300C - chipped, lowered 22s
2011 Cadillac Escalade - Stage 3 cam, Headers, CAI, 2,600 stall converter

Offline Bodzer

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Re: Electric Esprit
« Reply #12 on: Sunday,June 09, 2019, 03:31:19 AM »
Thanks for the positive messages. It is very much appreciated.  I discussed it with Richard awhile back and he was interested as well. Why have I kept quiet? It’s the busiest time at work for me (airline pilot), three small kids, a garden that is going crazy in the good weather and a wife who makes dark comments about selling some of the cars when I’m at work!

The Europa is down to the Fibreglass and awaiting my attention. Mechanically it’s all done but I want to get the body right.

The systems integration has been the most challenging. Fitting the motor was easy. Finding a place for all the batteries was the hardest part. As you all know there isn’t much spare space in any Lotus. The first iteration has the battery pack mounted centrally over the motor. This is fine to get the project moving and to keep all the batteries in one place. However, it’s at the highest point in the car. I could fit two modules (26”x11”x3”) in the front boot and two above the motor. Yes, I am aware that there is a potential fire hazard up front but have you seen where the petrol tanks are on a Porsche 904 or Abarth monomille/bialberos?!

The Europa is almost perfect for a conversion. Small, very light, aerodynamic and above all an interesting car. Early diy conversions tended to be small econoboxes or knackered pick-ups. Good to get moving but it doesn’t make for an interesting car. Well, even after the conversion they still drive like econoboxes and pickups. I still take my hat off to them though. Without them there would be no interest or information at all and I am most grateful for that.

It has to be stressed that all of this is reversible.

Chuck, sorry to have hi-jacked your thread. I’ll start a new one if folks are still interested.

Offline andy harwood

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Re: Electric Esprit
« Reply #13 on: Sunday,June 09, 2019, 05:12:41 AM »
Bozder -  I'd be interested in reading more about your project. Very interesting! I went to the VIR motorcycle races a few years ago with some former Buell engineers/friends, who at the time were the crew for a electric racing bike. Was interesting watching the bike prep, and listening to the riders talking about strategy for taking the curves on the course, as the acceleration is different from gas bikes. I seem to remember that the bike's motor was from a forklift, and at least one of the competitors used a motor from GM's electric car experiment.

Offline surfguitar58

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Re: Electric Esprit
« Reply #14 on: Sunday,June 09, 2019, 05:48:19 AM »

There is one other but it’s not for people of a sensitive disposition. I can send it onto you if you like. The presenter is brusque and opinionated. However, he has dispelled many myths that are (dangerously) spread by so called experts. His analysis of the technology is spot on and it makes for addictive viewing. I like him but I know many others don’t.


Regards,

I am shocked, SHOCKED, to learn that there is offensive content on the internet. however I will steel my sensitive nature if you PM me a link to this presenter.

Sounds like I am far from the only one on this forum that would love to see details of your EV build, so yes, a dedicated thread please!

t
"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away."
Antoine de Saint-Exupery