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George is right. But he needed to state that Turbocharging also has a LOT
of issues.
Any time you are boosting an engine you need to understand as much as
possible. I have hundreds of hours on my Supercharged engine with no
issues.
George's company makes Turbocharged kits for Bonanzas and I make
Supercharged systems for the same version of the IO 550. Enough said.
No mater what engine you are flying with if you do not pay close attention
to your temps and trends you are asking for problems.
As far as requiring 70 HP to drive the supercharger that is not the case. A
Supercharger and a Turbocharger use about the same HP from the engine to
maintain Sea level HP to about 17,000 ft.
A lot of questions can be answered by going to the aerosupercharger.com
site.
You can contact me off line at (702) 682-2389
Rick Schrameck
Supercharger Legacy
World Record Holder for speed @ 347 MPH
on 3/13/05 8:28 PM, Marvin Kaye at marv@lancaironline.net wrote:
Posted for "George Braly" <gwbraly@gami.com>:
I have provided engineering support for one such effort and I have done the
number crunch in relation to another.
There are a LOT of issues, besides the noted large amount of Hp that is
siphoned off of the crank shaft to provide the boost.
Regards, George
"""
Of late I have heard a lot of pros and cons to the idea of adding a
supercharger to my IO550 (non-pressurized) Lancair IV. Some startling
information (right or wrong) tells me that the supercharger consumes as
much as 50 - 70 HP for the belt driven unit. Clearly, if that is true,
it would require a significant boost from the supercharger just to get
back to where I start out horsepower wise. The purpose of this message
is to get at the facts. I would sincerely appreciate any and all posts
that might shed light on this issue. The more information, the better,
especially if there is anyone reading this that has one, has had one, or
is considering one.
Berni P Breen
"""
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