We now have Mazdatrix dyno runs on the 2 inch steel tube welded RX8
p-port
engine.
Far more torque and HP than the RX8 high power engine in the
6000 to 7500 RPM range. This is the range we use with the 2.85:1
PSRU.
This had a 52 mm Weber carb which unfortunately is smaller
than the 58 mm Weber carb we used on the 2nd gen p-port engine
dyno runs. The 52 mm carb is showing signs of being too small.
The 2nd gen P-port engine is now running in Mark Suspinski
Mustang II. Hopefully that will fly soon.
Dave Lemon commented that the engine had extraordinary stand off
fuel/air mist
above the carb with the stock RX8 exhaust manifold. This is to be
expected
as organ tuned p-ports don't like exhaust back pressure. We use ram
air plenum's
so this is not a problem for us. A supercharger exhaust manifold
and
stright through
muffler reduced the stand off and increased the power. Dyno run B.
More pictures on Monday and perhaps a video of the engine running on
the dyno.
--
Paul Lamar ...No rotor no motor.
Looks great! The side exhaust doesn't seem to be hurting too much..
Matt-
I am relieved about that too :)
--
Paul Lamar ...No rotor no motor.
And it seems like it's probably easier to build a p-port Renesis than to
build a manifold with all of them skinny side ports..
Matt-
Yep.
Paul Lamar ...No rotor no motor.
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