> Posted for <daveleonard@cox.net>:
>
> > I've had multiple conversations with David about oil injection... and
yes,
> >his
> > RV installation includes the stock oil injection system, and I believe
he
> >uses
> > Amsoil.  Last time we spoke Dave advised me that the oil injection
system
> > really doesn't "inject" the oil in the sense that it enters the
combustion
> > chamber as a mist or stream, rather that it causes a droplet of the oil
to
> > emerge from the injection port and then be wiped away by the apex seal.
> > FWIW.
>
> Except, have you forgotten that there are 4 oil "injection ports?  2 in
the
> rotor housings and 2 in the intake manifold.  At least the ones in the
intake
> manifold are probably intended to aerisolize the oil.
>
> Dave Leonard
>
> [Thanks for keeping me honest.  You're right, I'd forgotten about the
nozzles
> in the manifold and never asked Dave about them.  Next time we speak,
> though....
>
>         <Marv>            ]

In the third gen RX-7 and definitely in the RX-8, the oil is injected only
into the rotorhousing.  I believe this is the case on David Atkins'
installation.
I have been so happy with the wear (or lack of) when using pre-mix that I
will continue to use it.  The only measurable wear on my 856 hr. engine was
on the apex seals (very little) and *no* measurable wear anywhere else.  The
step wear on the side housings was exactly the same depth as when I put the
engine  together.  I did not have the sidehousings ground flat before
assembling.

Tracy Crook