Complaining

[Clive Apps Techno-Logicals 416 510 0020]

> 
> From: A70Duster at aol.com
> Subject: Soap box
> 
> Phil writes
> 
> << Most engines need 15 to 20% more fuel than stoich to
>  make peak power and 10% less to make peak efficiency. >>
> 
> and
> 
> <<at 12.8 and second 7000 rpm has a max pw of 7.57ms.>>
> 
> Three helpful tidbits and a bunch of complaining.  If you need to unsubscribe 
> then

BEFORE THIS TURNS INTO A FLAME WAR:

If you consider advocating for accuracy as complaining
maybe YOU should put on your cowboy hat and ride out of town

we need facts
not 1/2 fact half baked ideas, backed up by ego and attitude

check your ego/attitude at the door
this forum is for exchanging ideas and facts

I see a lot of mis-info info here and it becomes a problem for 
people that do not know the theory and/or practice of engine design
and mistakes in these calculations can expensive very fast

If you don't know know, don't guess, and if you do guess, say so

most engines do make max power at about 12:1 A:F ratios
and max fuel efficiency at about 16:1
these are right at the +20/-10% stoich numbers
and 7000 RPM on a 4 stoke is ~14ms ~80% PW

60x1000x.8/7000/2

Clive