How much boost is Bobby using?

Paul Lamar

Paul,
I'm not really sure.  Seems like he mentioned max boost was 35", but I'm
not
certain on that.  I do know that he cruises at around 30".

Mark

How many GPH is he burning?

How fast did you guys cruise going up there?

Paul Lamar


We were cruising between 160 and 170 TAS (mph).  I normally cruise around
190-200 TAS (mph), but I was flying with two RV's, so needed to slow down.
;-)

Mark S.

Any chance of finding out GPH at various cruise speeds mentioned.

van

I would like more pic of his fire wall forward. how much hp is he seeing
with his current setup?

clifton younger

Clifton,

Sorry, I can't help you with pics.  And Bobby doesn't have a web site
either.

Mark

I think I may have one or two.
Here they are.

Another guy supercharged a 2 rotor so let me know if you
want to see some pictures of that.

Paul Lamar

yes! I would :)
clifton younger

Here they are.

Paul Lamar


Has anyone tried the small belt driven blower by paxton that was used on
some shelby mustangs?
http://www.paxtonauto.com/**product.php?id=157<http://www.paxtonauto.com/product.php?id=157

Prices start at around 2,000, and should run way cooler than a turbo. I
know
that a turbo is almost  "free power" using reclaimed energy from the
exhaust, and this will require some HP from the engine to drive it,

So what do you think?


Kevin Alderman

OK if you don't mind the increase in fuel burn and reduction
in range.

Paul Lamar



My question is, when is somebody going to take one of those
supercharger gearboxes and hook it up to a power turbine?
Chris Wood

Why?


Paul Lamar

Maybe run it backwards like compounding, but use the accessory belt drive to
deliver the energy back to the drive train?
Have to roll that one around in my head a bit. Plenty of room up there-

KA



Paul, I didn't quite understand what you're getting at there. Sure,
that Detroit Diesel system exists, but is it practically available for
anyone to slap on a rotary?  If so, why hasn't anyone done it? Cost?
Weight? Heat tolerance? I was only assuming that "home-brew" would be
a more realistic option for the kinds of builders on this list.


-Chris W

This is far too technically challenging for a home builder.

Any new product is a gamble. Old and first Henry Ford said show me
an innovator and I will show you a candidate for bankruptcy.
Never has that been more true than right now.

The DD parts are far too heavy for a rotary powered aircraft.
Diesel exhaust gas is 2 to 3 hundred degrees cooler than a rotary
exhaust.

Here is one guy that started to try something like that in Western
Australia. The turbine is from an R3350 TC aircraft engine.

Paul Lamar