Greg & Wayne's 1993 240 Electric - the eVolvo

carnut222 · 2017-07-25T11:11:33+00:00

Most people who do EV conversions choose some tiny sh*t-box like a Daihatsu Charade or Mitsubishi Mirage (both appropriately-named LOL!) but we wanted it to...

jamesinc

Question, why did you not use an automatic transmission? Also would it be possible to not use a gearbox at all?

pastry

we've literally just covered that, Boss!

carnut222;114212 wrote With respect to direct drive vs having a transmission, it all boils down to the motor, controller and batteries being used. Even cars like the Tesla have a gearbox...granted it is only 1 reduction ratio. Direct drive to the wheels with no reduction ratio puts a huge strain on the motor and batteries when starting off as the current draw is huge. For a drag strip car it may be OK, but not practical for a normal car that's coping with start-stop traffic, hills etc.

carnut1100;114250 wroteTrue direct drive is problematic. Electric motors make a lot of torque from zero, but pull a lot of amps to do so.

[...]

Autos are rarely used because in stock form they suck power big time.

carnut222

jamesinc;114283 wroteQuestion, why did you not use an automatic transmission? Also would it be possible to not use a gearbox at all?

Hi James. Most of that has already been answered in the threads. Auto trans requires hydraulic pressure at all times so saps power. Direct drive draws extreme current when starting from a dead stop, and blunts acceleration depending on type of motor and batteries/controller. Production EVs use a reduction gearbox and high rpm AC motors. We have a DC motor that is only good for 6500 rpm so to achieve highway speeds and also decent acceleration, at least 2 gears are required...we use 2nd and 3rd in the M45 gearbox. We do go into 4th (1:1 ratio) if driving at speeds over 80 kph for any length of time. Thanks for the questions!

jamesinc

@carnut222 oh I missed that post... this thread has been very active!

carnut222

Hmm, would love to get one of these salvage Teslas cheap and upgrade our EV...imagine the possibilities! :)
https://www.pickles.com.au/damaged-salvage/item/search#!/search-result?q=(And.ProductType.Vehicles._.All.keyword(tesla).)

PaddlerEd

There's a mob in the UK who are doing Tesla powerpack conversions into classics - some might not agree with what they have done, but they are pretty cool.

https://www.facebook.com/electricclassiccars/

carnut222

PaddlerEd;c-140407 wroteThere's a mob in the UK who are doing Tesla powerpack conversions into classics - some might not agree with what they have done, but they are pretty cool.

https://www.facebook.com/electricclassiccars/

I think they're the ones who did the 911 and Range Rover seen on Fully Charged - NICE!

Philia_Bear

carnut222;c-140379 wroteHmm, would love to get one of these salvage Teslas cheap and upgrade our EV...imagine the possibilities! :)
https://www.pickles.com.au/damaged-salvage/item/search#!/search-result?q=(And.ProductType.Vehicles._.All.keyword(tesla).)

Berry automotive have a written off t8 xc90 they are parting out
15kwh battery pack and a 80hp motor set

Vee_Que

They write them off pretty well!

carnut222

Philia_Bear;c-140418 wrote
carnut222;c-140379 wroteHmm, would love to get one of these salvage Teslas cheap and upgrade our EV...imagine the possibilities! :)
https://www.pickles.com.au/damaged-salvage/item/search#!/search-result?q=(And.ProductType.Vehicles._.All.keyword(tesla).)
Berry automotive have a written off t8 xc90 they are parting out
15kwh battery pack and a 80hp motor set

Yeah I went and looked at the Berry one when they got it about a year ago?? Told Mark I'd take the battery pack if price were reasonable but never got a price. I suspect the asking price may be well more than what it is worth to me and pretty much anyone else, but you never know! The Volvo pack is a bit of an odd shape so would have to be reconfigured. Probably same for Tesla packs, but they contain smaller modules.

carnut222

The other thing is the Tesla stuff is now open source code, whereas not sure how difficult it would be to get the Volvo bits up and running again? I guess if you just go down to basic battery pack and charger it might be possible to get that part usable.

Philia_Bear

carnut222;c-140449 wrote
Philia_Bear;c-140418 wrote
carnut222;c-140379 wroteHmm, would love to get one of these salvage Teslas cheap and upgrade our EV...imagine the possibilities! :)
https://www.pickles.com.au/damaged-salvage/item/search#!/search-result?q=(And.ProductType.Vehicles._.All.keyword(tesla).)
Berry automotive have a written off t8 xc90 they are parting out
15kwh battery pack and a 80hp motor set
Yeah I went and looked at the Berry one when they got it about a year ago?? Told Mark I'd take the battery pack if price were reasonable but never got a price. I suspect the asking price may be well more than what it is worth to me and pretty much anyone else, but you never know! The Volvo pack is a bit of an odd shape so would have to be reconfigured. Probably same for Tesla packs, but they contain smaller modules.

They paid like $4k for the entire car
I think this is a make them an offer sort of thing

carnut222

Philia_Bear;c-140454 wrote
carnut222;c-140449 wrote
Philia_Bear;c-140418 wrote
carnut222;c-140379 wroteHmm, would love to get one of these salvage Teslas cheap and upgrade our EV...imagine the possibilities! :)
https://www.pickles.com.au/damaged-salvage/item/search#!/search-result?q=(And.ProductType.Vehicles._.All.keyword(tesla).)
Berry automotive have a written off t8 xc90 they are parting out
15kwh battery pack and a 80hp motor set
Yeah I went and looked at the Berry one when they got it about a year ago?? Told Mark I'd take the battery pack if price were reasonable but never got a price. I suspect the asking price may be well more than what it is worth to me and pretty much anyone else, but you never know! The Volvo pack is a bit of an odd shape so would have to be reconfigured. Probably same for Tesla packs, but they contain smaller modules.
They paid like $4k for the entire car
I think this is a make them an offer sort of thing

I'm afraid to ring Mark at the moment as I just saw his Facebook post about them doing a RWC on an orange 245L that may be on the market soon...Nooooooo! :)

jamesinc

@carnut222 featured https://www.facebook.com/ozvolvo/

carnut222

jamesinc;c-140865 wrote@carnut222 featured https://www.facebook.com/ozvolvo/

Cool - thanks! :)

PJQ

Hi Greg and Wayne,
Congrats on a really valuable thread for anyone interested in EV conversions.

I notice you’ve got a fan blower for the motor and oil cooler for the controller, have you had any dramas with battery heat or cold in our climate?

We don’t have the prolonged freeze of the northern hemisphere winter, but the last couple of months in Melbs have been damn frosty. Then we’ve got the other extreme to think about.

Battery temperature problems come up in articles and discussions. This article at the excellent Electric Revs site describes the root cause and research on a solution.
https://electricrevs.com/2018/09/06/researchers-create-self-heating-battery-cells-for-speedier-winter-charging/

Confession - snuck on here to ask about this, I don't have a Volvo ;) Having a project in mind I'm on the learning curve for EV conversion, in the info-gathering stage. My XP Futura Coupe is undergoing ground-up resto. While its a rolling shell is the perfect time to build in battery compartments and fittings for EV conversion.

Cheers,
Pete Q

Spac

Does anyone know what the crashed Teslas sell for?

ramrod

try the damaged auctions pickles and manheim

timbo

Spac;c-145118 wroteDoes anyone know what the crashed Teslas sell for?

In the USA they're going for upto 5k under brand new price. That was for a car with front and rear impact

carnut222

ramrod;c-145127 wrotetry the damaged auctions pickles and manheim

A few have sold and/or been listed recently but not sure whether you can access the sold price. I should get Iceton onto it! :)

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