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Hi. I have a 2018 Mustang Ecoboost. I am currently researching the idea of slapping a Tesla motor in the trunk of my Mustang for more power to the rear wheels. If anyone can point me in the right direction of what parts I would need and how much they would cost, please let me know. I plan to only use the EV motor when drag racing, and a 25 mile range.
 

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You're keeping all the petrol stuff up front? Is your car front wheel drive or rear wheel drive? being rear wheel drive, and keeping all the original engine and drivetrain, once you put a tesla motor in the back (that'll essentially replace the diff completely and maybe a good chunk of the rear suspension) how to you plan to drive power from the stock engine to the rear wheels?

Second general question, which applies to it being a hybrid with the engine in front and tesla motor in the back, Or if its a full electric conversion, What batteries are you planning on using? What capacity will the pack have and where abouts in the chassis do you think it'll fit?

Answering those 2 questions will quickly show that your idea won't work and instead you need to approach this very differently.

If it were me, I would put the tesla motor in the rear, ditch all the petrol stuff and go full electric
 

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Build a trailer, put a Tesla motor and batteries in the trailer cuz the whole shebang weighs half as much more than what your car does, then show off your drifting skillz to your pals on Instagram in keeping it all from Jack-knifing and cracking the whip as you smoke four tires at once.

If you really wanted power, you'd ditch that Barbie Jeep ecoboost engine and stick a roots-blown 502 in it.
 

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You're keeping all the petrol stuff up front? Is your car front wheel drive or rear wheel drive? being rear wheel drive, and keeping all the original engine and drivetrain, once you put a tesla motor in the back (that'll essentially replace the diff completely and maybe a good chunk of the rear suspension) how to you plan to drive power from the stock engine to the rear wheels?

Second general question, which applies to it being a hybrid with the engine in front and tesla motor in the back, Or if its a full electric conversion, What batteries are you planning on using? What capacity will the pack have and where abouts in the chassis do you think it'll fit?

Answering those 2 questions will quickly show that your idea won't work and instead you need to approach this very differently.

If it were me, I would put the tesla motor in the rear, ditch all the petrol stuff and go full electric, At one time I read an interesting article on this topic, if you are interested visit the website here.
I agree 100%, I think this upgrade will be more difficult than it seemed at first glance. What about suspension and brake upgrades due to changes in overall weight?
 
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