Engine load vs RPM and torque

[Bruce Plecan]

----- Original Message -----
From: Matt Beaubien <mbeaubie at gpu.srv.ualberta.ca>
To: <diy_efi at efi332.eng.ohio-state.edu>
Sent: Wednesday, April 07, 1999 6:46 PM
Subject: Engine load vs RPM and torque

Alan Lockheed  Golden CO.  Used to have a engine modeling program using
parameters, thou I haven't seen hhim advertise lately.
Bruce


> Hi all,
>
> This is a little off charter but is still related somewhat (especially to
> those with artificial aspiration.)
>
> I'm looking for some software or code (Matlab, Working Model etc...) that
> will allow me to calculate the loads seen by the piston, rod, etc for
> various torque/speed combinations. For instance, is it better to make 100
HP
> using 15 psi of boost at 5500 rpm or 100 HP at 6500 RPM using 7 psi of
> boost...
>
> I'd like to be able to input the weights of the piston and rod, and the
> torque value to obtain their loadings. Most people will tell you the
largest
> loads are seen on the exhuast stroke at TDC, but that doesn't explain why
> those turbo Honda's start bending rods at 10 psi...
>
> I have a small single cyl that I'm going to be putting a blower on. In
it's
> current configuration, the factory tells me additional revs will seriously
> comprimise reliability. OK, but with the blower, what is the ideal speed
for
> my desired HP?
>
> Repond off list if you feel compelled. Thanks.
>
>
> Matt Beaubien
> mbeaubie at ualberta.ca
> 3 x 510
> 1 x 300ZXT
>