> That is interesting data Francois. The late stock Mazda

sequential turbos
had abraidable compressor housings to improve the efficiency of
the compressors.

I am sure glad you are monitoring all these parameters. Most of the

guys

on here are reluctant or don't have the electronic knowledge to

properly

instrument their setups. They are willing to fly it until it
breaks however :)

Tom Parkes are you still flying without a intercooler? Are you

monitoring

your intake manifold air temp?

Paul Lamar

The highest intake temp I have seen is 120 deg. but I have to admit

that I

have to press a button to see the intake temp so I may be missing some

high

points, like take off.  My intercooler also gets PLENTY of air.

Dave Leonard

I think Francois was referring to the temp out of the compressor before
the intercooler. On the other hand his intercooler is not as well
located
or as well ducted as yours IMHO.

Paul Lamar

Correct Paul, I was indeed referring to the temp out of the compressor
before the intercooler.  After the intercooler, we have intake
temperatures between 105 and 130°F, so pretty much in line with Dave's.

BTW, we have totally changed the ducting of cooling air to the
intercooler, it was unsatisfactory as you correctly pointed out.

I wouldn't run a turbocharged rotary hard with no intercooler, it makes
for a pretty thin detonation margin... if any.

Francois

 
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