If you see something that does not look right please let me know.
Paul Lamar
Is that air-filter going to be able to handle the vacuum that turbo
unit is going to generate?
I think our IO540 has a bigger air-filter, and it isn't
turbo-charged. And it has a lot of metal to keep it from collapsing.
Also, you have what looks to me like a 2" or so exhaust from a
turbo-charger not connected to anything.
You had said something about a compound... are those to feed your
"compound" driver?
Best I can do just looking at a picture or three.
I wish I were looking at this thing from 3' away....
Regards, Steve Thompson
That is the largest air filter available. No doubt there will be some
pressure drop.
That 2 inch pipe has a disk in it with a one inch hole in the
exhaust
manifold to dump excess pressure.
Nothing compound about this engine. Just a LOT of HP.
Paul Lamar
Will you be using your multi spark ignition? I will be wanting one
for my single rotor in the future. Andrew Campbell.
Thats on back burner until we get a confirmation on the patent.
Hopefully in April but there is no guarantee. It is the Government
after all.
We have an MW Aussie ignition on the TTC engine.
Paul Lamar
Hi Paul, I think Steve is on to something. The Lancair I built had an
intake air bypass which was opened after take off. This reduced the
intake filter pressure drop. Potentially lots of Hp there! Ray
Tolhurst
That's true. Mooney's had those and they would pick up one or two
inches of manifold pressure. We have something like 60 or 80 inches
of manifold pressure to work with. If it is a problem I will build a
bypass after we test it. I used to rent a Mooney from time to time.
Paul Lamar
But, seriously. you need to know what the "CFM" is of that air
filter, and what it is that your turbo unit wants/does.
If they are way out of line, it will keep you from n% HP until you
open the ram feed.
Regards, Steve Thompson
My guess is 900 CFM.
The riot act was read to us by Jim M. The prop will kick up a lot of
crap. We will install a bypass once it is in the air if it proves to
be a problem.
Paul Lamar
Paul, Enclose the filter in a carbon fiber housing and ram air feed
the box. There are also some really large area flat filter made by
K&N for late model high performance cars as well.
Larry Childs
What I've seen on a few engines that are heavy breathers, are two
or three of those type filters (in parallel) that feed into one
breather line.
And, at no time did I think of using ram air below 2000 AGL. Most
places, when I take off during the day, you can see junk in the
air when looking at the horizon. And as you cross through
2000-3000 AGL you see the air get clearer. That particulate is
not the best thing to suck into an engine.
Regards,
Steve Thompson
Paul,
I would suggest using a "cyclonic" filter as they have very little
filter losses.
They use it on some helicopters in sandy situations and Dyson copied
the system
for their "bagless" vacuum cleaners. Easy to make.
Ray Tolhurst
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