Paul,
>From your attachments there are two that stand out...
Where the hottest point on the apex seal is located and the amount 
of oil required to cool it.
Mazda's research decided to use a port in the housing at it's center 
to cool and lubricate the seal..... allowing it to smear oil over 
the entire top of the housing.
Now here is the million dollar question.  How much oil would you 
have to add to the fuel spraying into the ports to achieve the required 
amount of oil needed at the center of the apex seal?
See attached 1

 Barry Bordes

The early RX8 had the oil supply cut back due to California draconian emissions regulation.
A lot of RX8 engines failed.
Initially the RX8 oil injector was in the center of the rotor housing.
The same as the 13B. It was in the center because the apex seals caught the 
fires of hell when the peripheral exhaust ports first opened in the 13B all gens.
That is why the center of the seal runs much hotter than the rest of it.

Later in the RX8 series they added side oil injector ports as now the RX8 has side
exhaust ports. The sides of the apex seals take to most heat.

We don't spray oil into the intake. We mix at least one once per gallon with the fuel.
That does a better job of lubricating the entire  rotor housing and apparently
cools the cast iron apex seal adequately for a peripheral exhaust port normally aspirated.
rotary.

I am not so sure for an iron seal turbo engine.

We mix 2 ounces per gallon with the Iannetti seals in the time to climb engine.
Up to four ounces per gallon do not affect the ignition.

We have have also ran it very very lean and very very rich with no sounds or indications
of knocking. It does not have knock sensors however. If Racing Beat thought
knock was possible they probably would have installed knock sensor on the TTC as they
well knew about them. The Motec would instantly shut the engine down if it had detected
knocking.

There is some work in the UK running the rotary with Iannetti seal with no oil.

In 19 years of the newsletter with 750 people nobody has ever reported knocking. 
Some have over 2500 hours.

I have driven rotaries for at least 750,000 miles and I never noticed or heard
knocking. I have owned seven rotary powered cars since 1973. No turbo's so far.

Mistrial ran the turbo on kerosene and all other weird things they
could think off in an attempt to destroy an Iannetti apex seal.  No seals
were cracked of destroyed. I am not sure even if they got it to detonate or knock.

Those dummies on youtube that claim knocking sounds are clue less. All one needs 
to do is connect an O-scope to the Mazda knock sensor. There have been knock 
sensors on rotaries ever since the 3rd gen RX7. They are probably hearing a trashed muffler 
system rattling. 

It is quite well known that if you mess with the amount
of boost on a turbo third gen RX7 you will fracture a stock cast iron
apex seal. My advice is.. if you are going to boost a turbo 3rd gen RX7 take it
apart and install Iannetti Sl/ni apex seals. 


Paul Lamar