Hi Paul,
you think ? As you can see the ring is retained by four roll pins, is
this a good idea ?
cheers Chris Hoskins.
The role pins are a good idea. They act like 3 keyways. At that
radius the load is low. This was back in the days when people were
lucky to get 150 HP.
Paul Lamar
Hi Paul, how do 4 roll pins act like 3 keyways? I think the 6 or 8
tapped short screws around the peripheral are a much better idea,
especially when the ring gear is a snug fit in the housing. Dave
Mccandless in Perth
Sorry Dave! 4 keyways. I had been working my butt off getting this
RX8 water block so the machinist is happy :-) The weight is down to
.65 pound.
True the extended point set screws would work good as well. This
Ross design is 47 years old. Long before the extended point set
screw was invented.
Paul Lamar
Paul,
Are you going to be selling that Rx-8 pump out/inlet piece?
Dan Gorsline
I am thinking about it if I can get it made.
Paul Lamar
Hi Paul,
I must have missed it. What is the benefit of the water pump piece you
are working on?
I recently acquired a FWF RX8 with Tracy's redu drive and 3 series ecu
from a gentleman who had a mishap. I plan to put it on a Murphy Rebel
I'm building. I am looking for ways to improve it before I install it.
If I like it I will likely build an Aluminum version.
He said it worked well but a little warm climbing on hot days. Warm will
be welcome here in MN -10 today. If you know of anyone running one on a
bush plane I'd be interested in prop suggestions.
Regards,
Todd Olson
Long storry. It is designed to work with a p-port slide throttle.
In theory that gets the lowest fuel burn for a given amount of HP.
It is basically a copy of the 4 rotor intake system Mazda used
to win Le Mans on a fixed amount of fuel.
It is best to keep the throttle as close to the rotor housing as possible.
Years of experience.
Here are some old pictures of the earlier block that weighed 2 pounds.
You need to fix the cooling system. Take some pictures of what you have
and send them to me. Who owned the airplane before you?
Do you have my book "How to Cool Your Wankel."?
The p-port is the way to go on a bush plane as you will get out of shorter
fields with an extra 50 to 75 HP.
Paul Lamar
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