Today's Message Index:
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1. 06:37 PM - Catto Props and HP (Brian Alley)
2. 08:13 PM - Re: Catto Props and HP (Fred Weaver)
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| Subject: | Catto Props and HP |
I had Craig Catto build a prop for N320WT and installed it just before Airventure
last year. I asked him to build it for a 160HP 0320. My 0320-A2B was a low
compression 150HP motor until late last week. I installed 8.5:1 pistons and new
rings in freshly honed cylinders and made my first flight Friday with 160HP.
The results were quite impressive. Observations will be listed as Before/After
the compression increase. The process of installing new pistons only took 3
days.
Static RPM 2130/2250
Climb at 120 mph ft/min 1100/1600
RPM @ 22" MAP 2440/2650
Cruise @ 22" MAP 150/165
During my next flight, I plan to do a full throttle run to see what max rpm will
be. I'll also try setting power to the old cruise rpm to see what MAP is required
and what the fuel flow will be. Should be interesting to see!!!
BRIAN ALLEY (N320WT)
CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
Message 2
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| Subject: | Re: Catto Props and HP |
It's about fricken time.......
----- Original Message -----
From: Brian Alley
To: TailwindForum ; tailwind list T-wind
Sent: Monday, October 16, 2006 6:36 PM
Subject: Tailwind-List: Catto Props and HP
I had Craig Catto build a prop for N320WT and installed it just before
Airventure last year. I asked him to build it for a 160HP 0320. My
0320-A2B was a low compression 150HP motor until late last week. I
installed 8.5:1 pistons and new rings in freshly honed cylinders and
made my first flight Friday with 160HP. The results were quite
impressive. Observations will be listed as Before/After the compression
increase. The process of installing new pistons only took 3 days.
Static RPM 2130/2250
Climb at 120 mph ft/min 1100/1600
RPM @ 22" MAP 2440/2650
Cruise @ 22" MAP 150/165
During my next flight, I plan to do a full throttle run to see what
max rpm will be. I'll also try setting power to the old cruise rpm to
see what MAP is required and what the fuel flow will be. Should be
interesting to see!!!
BRIAN ALLEY (N320WT)
CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
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10/14/2006
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