Crank Trigger Signal (was monitoring RPM)

[Christopher Bruno]

Bruce Plecan wrote:
> 
> I may be wrong on this but I believe GM does the "look at" for timing
> calcs every cylinder.
>   Jus a quick reference, How many times does the crank turn on a
> Top Fueler during a pass (yes martha, without tire spin), 3.0:1 gears
> 48" tall tires works out to like 315.  Course this is in way less than 5
> sec.s..  Jus something to think about...(Heard with tire growth was 290)
>   Bruce  Cone shaped Hats may become available on a lend/lease
>               basis,  Lend me your cranial abilities, I'll lease ya a hat

I'm not trying to nitpick and this probably doesn't mean anything
anyways, but (since I'm an ME I have to add my $.02)  when the
top fuelers dump their first and second clutch through the run 
they effectively change the gear ratio.  I think it is probably
a better estimation to say that the RPM's are kept at a constant
level throughout the run.  For approximation say 8000 RPM at 3.5
seconds and you get 467 crankshaft revolutions.  That's still
pretty impressive...
-- 
Christopher Bruno
Teradyne
My cone shape hat is no longer conical because everybody just 
whacked me on the head for that response....