---------------------------------------------------------- Tailwind-List Digest Archive --- Total Messages Posted Mon 10/16/06: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:37 PM - Catto Props and HP (Brian Alley) 2. 08:13 PM - Re: Catto Props and HP (Fred Weaver) ________________________________ Message 1 _____________________________________ Time: 06:37:20 PM PST US From: Brian Alley 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? ________________________________ Message 2 _____________________________________ Time: 08:13:37 PM PST US From: "Fred Weaver" Subject: Re: Tailwind-List: 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? ------------------------------------------------------------------------- ----- 10/14/2006