In message , Dave Plowman
writes
Similarly, using a supercharger etc increases 'atmospheric' pressure
and the final compressed pressure. If you could develop a supercharger
which was super efficient, you could negate the effect of the throttle.
But you'd then have to adjust the fuel accordingly which would mean the
engine accelerating uncontrollably until it burst. One thing
overlooked with petrol and diesel (or steam) is that all reciprocating
engines have nil torque at TDC and because modern diesels have up to
five bursts of fuel between TDC for ignition and 90 degree after TDC
maximum torque, diesels will always win hands down. I find a lot of
people equate engine power with bhp and don't take torque into account,
hence a PP who was witering on about F1 engines.
--
Clive