So this is a clever way to handle an EV restomod of a classic car - battery goes where the engine went, electric motor goes where the transmission went:
https://www.youtube.com/watch?v=610Amyhpzzk
https://www.jaguar.com/about-jaguar/jaguar-classic/authentic-cars/conceptzero.html
They managed to get 40 kWh of battery in the same space as the original engine, with about 20 kW more power, and about 80 kg less weight... and the ability to completely reverse the modifications.
Looks like a fully-dressed LS1 for a manual transmission is about 225 kg (lighter for automatic, flexplates are lighter than flywheels). A Tremec T56 is about 55 kg wet. And, let's say another 50 kg of fuel, we're looking at about 330 kg.
40 kWh of Samsung INR21700-48G cells is 160 kg.
Hmm.
This might actually stay in the ballpark of an LS1 powertrain's weight even with some accessories and the power electronics...
@bhtooefr Whenever my car gives up the ghost (hopefully not for another 100k miles at least), I want to keep the body and replace the engine with an electric motor.
@USBloveDog One problem in my area is it's usually the other way around - the body rusts out before the powertrain gives up.
Also, this particular project takes advantage of the inefficiency of front-engine rear-wheel-drive packaging. FWD cars are more tightly packaged, so there's less room to put the battery. (Most commercial EVs are designed to have the battery under the floor.)
This is why a *lot* of DIY EVs in the 1990s and 2000s were based on compact pickups - more room for battery.
@bhtooefr Mine is an ‘06 Mustang, so it’s RWD with room for batteries and a rear motor along the drive shaft
@bhtooefr But a pickup would just have more volume for the batteries than a coupe. There’s no replacement for displacement
@USBloveDog Yeah, that's a good candidate for conversion in this style - and the engine bay is quite large, thanks to how giant the Ford Modular V8 is.
Attached is that age-old photo comparing a 4.6 DOHC Modular V8 with a 302 Windsor.
@USBloveDog I'm thinking the way to do it is to design a standard battery module size, and build four battery modules. One goes down where the crankshaft/oil pan was, and then three on top of that. I think it'll pretty effectively fit in the same hole the V8 did, and give you a decent amount of battery.
...now I'm wondering how much battery you could fit in a Small-Block Chevy-sized hole, especially given how much stuff a SBC fits in...
The Jaguar XK6 engine's length, height, and weight (being a DOHC straight 6 with an iron block) almost certainly helped this conversion, though.
Conversely, the SBC is known for its small size and (in Gen III and newer, where aluminum blocks became available) light weight relative to its displacement, thanks to its pushrod valvetrain.