what _IS_ a good cruise A:F ??

[Gregory R. Travis]

On Thu, 27 Mar 1997, Johnny wrote:

> 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?

Yes.  I meant EGR.  *blush*  So much for fast-n-furious typing.

greg

greg		greg at indiana.edu	http://gtravis.ucs.indiana.edu/