[s-cars] New 5 cylinder vs. AAN

[JC]

Nice post Cody.
Never thought about the fact you can estimate rule of thumb RPM limits from
stroke.  Cool.
I sure likes me some science. (Tastes like chicken.)

---- current ----
1995.5 S6 Avant
2003 E46 M3 Cic
2008 A3 2.0tDSG
---- past lives ----
2006 A4 2.0TQA
1998 A6Q 2.8 PES G2
1989 200TQA SJM
1990 CQ
1997 A4 1.8TQ Wett
1987 4kCSQ

John J. Cunningham
jc at j2c3.com
US Mobile +1 (617) 750-5025
China Mobile: +86 (0) 136 8175 8180

>
> crankshaft resulting in wear. In the real world the maximum
> average speed of a piston is about 25 meters per second. This
> means a theoretical engine with a stroke of 100mm must not
> exceed about 7500rpm. If the stroke were 75mm the engine
> could do about 10,000rpm before piston speeds become too
> great. Of course many other factors are involved (weight of
> the piston, weight of the connecting rod, and the ability to
> flow enough air to make it worthwhile), but that's the gist of it.
>
> -Cody (mobile)
>


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