what _IS_ a good cruise A:F ??

[Johnny]

Gregory R. Travis wrote:
> 
> On Thu, 27 Mar 1997, Evert Rosseel wrote:
> 
> >> It often doesn't if the "pinging" is mild, of short duration, and/or
> >> occurs at very low power levels.
> >
> > Knock usually only occurs near full load (gas pedal to the floor),
> > but also depends on engine speed. (See further).
> 
> Knock can occur at relatively low power levels.  For example, most
> cars with EGT systems will knock at highway cruise speeds (which typically
       ^^^^^^^^^^^^^
> demand only 12-30% of the engine's maximum power) if the EGT system is
                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> defective.  My own truck, a Toyota, will knock (detonate) at 40MPH at a
> steady cruise on a flat road.  This is at approximately 20% of its
> maximum power output.

Uh oh, you left a small nit for me to find here. I think you mean EGR
don't you?

Otherwise, you seem to be right on the mark as usual greg. Great web
site too. Hadn't been by in a while, looks like you've been busy.

-j-