I too am an engineer that thrives on building what I think will work and testing for validity.
I know exactly what you speak of about other racers thinking that anything new won’t work. I love proving them wrong, but it’s really not much fun when they don’t have open minds and admit it…
I’ve been thinking about power kart lifts that can lift/drop, are very light, fold flat or turn into trailers and start my gearbox karts (laydown and shifter roadracing). Not giving up but will likely have to compromise.
Aerodynamics are my favorite pursuit. I’ve had radiators of several sizes mounted in most locations on karts and am still pursuing more. I’m on my 18th setup now.