real time dyno?

[David M Parrish]

> From:          "John Faubion" <jfaubion at beaches.net>

> >2) You do not want to suck away 200 HP, only enough to cause an
> >RPM drop.  Yes, at higher torque, you need to suck away more torque
> >to get a reliable RPM drop. 
> 
> I was told a few days ago that if you applied a known load to an engine you
> could calculate engine torque using the know load and the amount of rpm
> drop. Got any ideas on what the formula would be?

Ah! So that's were that question came from! This is the first I've 
heard of such a method.

---
David Parrish
Actually, my reply was rather tongue-in-cheek.