I have an old v8 laying around that’s not very useful to me. Is there a company that sells conversion kits that replace the alternator and starter with an EV motor? I can’t seem to find one.
Edit: like this:
https://gmauthority.com/blog/gm/gm-engines/l8b/
Found one:
https://m.roadkillcustoms.com/e-charger-bolt-on-electronic-supercharger/
And that’s a system that was engineered end-to-end.
Developing an add-on is far more difficult.
Look at the aftermarket supercharger options for most any vehicle. Far simpler than this, and yet there are very, very few, with very limited engine platforms supported.