Re: [Chrysler300] 500 ci

["Laurence G. Johnson" <laurence_g_johnson@xxxx>]

Dan,
Horsepower is an expressed value that is calculated from torque and engine 
RPM. The foemuls is:

HP = (2*pi*RPM*Torque)/33,000 where:
pi = 3.1416 (2*pi converts linear to rotary motion)
33,000 is a constant expressed as lb-ft/min.
RPM = Revolutions/min
Torque is expressed in lb-ft
Example:

RPM	Torque	HP
1000	220	41.888
2000	315	119.952
3000	410	234.192
4000	365	277.984
5000	330	314.16
6000	260	297.024

Peak torque is at 3000RPM but peak horsepower doesn't occur until 5000RPM. 
This is a typical chart for a warmed over street engine. Plot he points on 
some graph paper and the relationships will be clear.
larry Johnson





> Joe:
>
> I am unfamiliar with how peak horsepower is calculated or whether it has
> anything to do with peak torque. Anyone out there know how to calculate 
> this
> or what the relationships is?
>
> Dan Reitz
> Northridge, CA
>
>
> [Non-text portions of this message have been removed]


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