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.
There are tons of superchargers for nearly every engine platform, but especially the common ones.