Perry Mick wrote:
I'm considering building a new engine for my plane, 2-rotor NA.
Since I
want the 13B-REW front thrust bearings and the rear engine mount
points,
it should be based on the 3rd gen REW engine. But since I'm not
turbo-charging, I think I should use 89-91 NA rotors and rotor
housings?
Higher compression ratio and the rotor housings would have the
exhaust
splitters in them for noise reduction. Hopefully these parts are
interchangable. Also looks like I would retain the 2nd gen front
cover
with CAS.
Perry, if you want power you need to go for a peripheral port. Then
you will have more power than Tracy, rather than less (his exhaust
isn't blocked with the "spitters"). My .02.
Turbos are so nice too, reduce noise. I just got my 90 Turbo RX-7
going with a fresh engine, makes much nicer car. I was delayed getting
it going because the engine wiring harness was melted internally and
shorting out.
Next project will be homemade NA PP with trick throttles to change the
"cam" timing. I will dyno it and share the results.
Hans
Maybe someday Hans, but I want to just do an engine swap and keep
flying. No major mods to make it work
--
Perry Mick
Perry, Are you having problems with your current engine?
Paul Lamar
No, not at all. It's just a thought, make a new engine based on the
13B-REW for the airplane, larger intake would breathe better, more power
hopefully, and it will have the rear mounts that I will build a mount
for eventually. It would still swap right into the mount I have now with
the oil pan plate. I have 420 hours TT and 255 on the new engine.
Then I take the engine that's in my plane and put it in my 86 RX-7. I'm
driving an 88 RX-7 now, the 86 is in the hangar with a coolant leak in
the engine. I miss the 86 because it has a better stereo and a backseat
for the kids. But I may just go econo and rebuild the extra 86 engine in
my hangar for the car, it also failed internal coolant leak at 209,000
miles. I started to disassemble that engine: on the rear housing the
wall is corroded away at the bottom between the coolant passage and the
combustion chamber. There is also a very small crack on the exhaust port
side, where exhaust pressure actually pushed part of the coolant o-ring
through the crack into the coolant passage.
--
Perry Mick
Custom Composite Props
mick@bridgingworlds.com
http://www.ductedfan.com
Your current plane engine must be a bit strange intake wise as it has a 3rd gen
front end housing and 2nd gen center and aft end housings.
The 3rd gen front housing has larger intake ports.
Paul Lamar
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