Family member got a 1960's vw as a first car.
Never checked the oil because it was a vw and nothing under the hood needs looking at.Started knocking and nowhere to stop so went another half mile until clear of traffic.
When it died this is what was jammed between the top of the crankshaft and...
I have read the to and fro comments and think the main difference that is not taken into account by dangerzone is tyre loss on a dyno.
Axle mounted dynos prove this.
Most or all of this is sorted by using a properly tuned aftermarket computer.
There are still suitable motors available without vvt and multivalve.
Small auto conversions typically rev at about 5000 rpm for takeoff and a bit less for cruise.
Most LS conversions leave out that stuff anyway.
A hydrostatic drive system from a small tractor might suit.
This system has been used in aviation before.
The Sperry Rand ball turret drive used this system.
One lever controlled speed and direction.
This unit weighs just under 10 kilograms.
When I decided to build an aircraft I went to the pre build course run by SAANZ.
The first thing I remember presenter Bruce Cooke saying was that you don't know what you don't know.
A very well run weekend.