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    What motor does your 2023 Model Y have?

    We are very interested in trying a 4D1 drive unit in our Tesla Cobra EV race car because of the potential for better cooling. We currently run a 980 drive unit, but suffer from power degradation as stator temperatures rise. We have located a drive unit, but it does not come with HV cable...
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    Tesla Powered Cobra Race Car

    Here's a link to testing done on one vehicle by Idaho National Labs. They've got test results for all major EV's - but unfortunately not any Teslas. https://avt.inl.gov/sites/default/files/pdf/fsev/batterySoul1920.pdf
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    Tesla Powered Cobra Race Car

    The Spark pack is a little small (18 kw-hr) and according to DOE testing is only capable of putting out about 200kW.
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    Tesla Roadster Prototype Limited Slip Differential

    To be fair to the original seller, it might have been me who told him it may fit the Model S. He provided dimensions that I asked for - I just assumed the unit would interchange once I saw a couple of the basic dimensions.were the same. I don't believe the casing has to be machined, just...
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    Tesla Roadster Prototype Limited Slip Differential

    Prototype Tesla part for the Roadster. I bought this unit from another member for my Tesla powered race car (See thread titled "Tesla Powered Cobra Race Car"). I thought it was identical to a model S differential, however it's not quite (spline count and external dimensions are the same, but...
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    Tesla Powered Cobra Race Car

    We are using a very large radiator and fan with an inline ice reservoir. However, it is possible that the Tesla inverter limits power based on Power demand history as opposed to actual temperatures. We are also looking at both fixed and variable power limiting strategies (i.e. allowing full...
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    Tesla Powered Cobra Race Car

    Yes, we are largely basing our assessment of the Kia battery on that report. The discharge test is 10 seconds discharge/10 seconds rest until the pack is discharged. Our application is road racing, where the throttle is on/off. That being said, we think the real issue is going to be power...
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    Tesla Powered Cobra Race Car

    Thought you might be interested in seeing our Tesla powered race car that we hope to have on track this summer. The chassis and suspension were custom designed in 3D CAD, the drivetrain is from a P85, the battery pack is from a Kia Soul EV, and the body is from a classic 427 Shelby Cobra...