Re: RPM are cool on youtube; Horsepower is cooler in the air

Mark Boesen Wed Mar 14, 2012 11:25 pm

proctor wrote:
proctor wrote:Rusty is right, higher compression, BMEP we call it here, brake,mean,effective pressure
gives more horse power at the same RPM. But at this point I am getting out of my
depth and need Puffie the young mechanical engineer who just introduced himself
to come in and explain it all to me.
I never tire of Rusty's adventures. John
What I was trying to say was that the indicated horse power = PLAN/33,000
Where P= pressure or bmep, L = stroke, A = area of cyl bore, and N = RPM
So that increasing any one of the variables will increase the power, in Rusty's
case increasing P.
John

Yes, but not at the same RPM.

http://en.wikipedia.org/wiki/Horsepower

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