OP
Silly Sausage
you clearly are not a trained mechanic :/
for starters.... a starter motor doesnt ignite fuel..... it only spins the engine fast enough for the combustion of the fuel/air mix to ignite, meaning the 'engine' takes over (starter 0-600RPM, engine 400RPM+)
the starter has to overpower the engine when the pressure gets to its peak.... ie at BTDC where chamber pressures will not be as great as when the engine is running through combustion but still pretty high and the faster the engine spins the higher those pressures get but luckily they will be met for a shorter period the more RPMS the engine is turning at
why do you think when you start your car up it sounds more like a 'pulse' than a smooth turning motion...... the drop is the high pressures 'slowing' the motor or.... putting load on it
You're obviously a brilliant mechanic!
Try an engine forum, you may have more success there with your ideas. :smilielol5: