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    1. · Registered
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      Discussion Starter · #1 ·
      Hi Everyone,

      I'm new to the whole EV conversion thing so please bear with me.

      I recently bought a Steyr Haflinger that's been sitting for 40 years in a bush (photos attached of its current state). It will require me to build an entire new body for it and this presents a fun opportunity to do something slightly different with it. The vehicle is fairly light, has plenty of space to store batteries underneath, doesn't need to go very fast, doesn't need much power or much range - sounds like it might work?

      So here's the question: What parts would we recommend for this? Obviously cheap and available is the main consideration (UK based).

      Power would need to be in the 30-50hp range with similar torque. The motor would need to be quite light as it hangs off the back of the gearbox. Max RPM would need to be around 4000-5000 rmp (this would achieve 40mph with current gear set, easily fast enough!). For example one might consider a turned down Nissan leaf motor?

      Battery - another interesting one. You can fit almost anything underneath it in a custom battery box, however after a bit of research Volvo XC60 battery such as this one would fit underneath without a custom battery box: 2021 VOLVO XC60 EV HYBRID BATTERY 32299419 | eBay I'm aware there's a lot more to consider here than 'does it fit' so I'm open to suggestions.

      The final main question: The gearbox and diffs on the Haflinger are intgral to its design and therefore can't be removed. The motor must drive the gearbox. Therefore the question is: to clutch or not to clutch?

      Happy to answer any questions. I'm new to EV swaps but have experience restoring vehicles and a Physics degree to back it all up. Coding/ canbus etc is all new to me so lots to learn. Any suggestions appreciated greatly. Should I go ahead I'll use this forum to keep people up to date should they wish.
       
    2. · Registered
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      8,498 Posts
      I recently bought a Steyr Haflinger that's been sitting for 40 years in a bush (photos attached of its current state). It will require me to build an entire new body for it and this presents a fun opportunity to do something slightly different with it. The vehicle is fairly light, has plenty of space to store batteries underneath, doesn't need to go very fast, doesn't need much power or much range - sounds like it might work?
      ...
      Battery - another interesting one. You can fit almost anything underneath it in a custom battery box, however after a bit of research Volvo XC60 battery such as this one would fit underneath without a custom battery box: 2021 VOLVO XC60 EV HYBRID BATTERY 32299419 | eBay I'm aware there's a lot more to consider here than 'does it fit' so I'm open to suggestions.
      Are you thinking of just one of those? This is a typical plug-in hybrid battery, meaning that is configured for a voltage similar to typical battery-electric vehicles, but also that it is much smaller than any EV battery at only 11.6 kWh. That capacity might be okay, given the performance expectations, but might not be enough. Connecting two of these in series would be too much voltage for readily available components to use and manage, and connecting in parallel has its own management problems.
       

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