---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Tue 09/23/08: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:40 AM - Re: 1977 Cheetah (flyv35b) ________________________________ Message 1 _____________________________________ Time: 04:40:44 AM PST US From: "flyv35b" Subject: Re: TeamGrumman-List: 1977 Cheetah Fletcher should have certified the prop with a 63=22 pitch as well as the 61=22 pitch. Cliff ----- Original Message ----- From: teamgrumman@aol.com To: teamgrumman-list@matronics.com Sent: Monday, September 22, 2008 7:53 PM Subject: Re: TeamGrumman-List: 1977 Cheetah With porting and polish on new Lycoming cylinders, the O320 dynoed at 175 hp before leaning. Leaned at near sea-level, it went to 188 hp. As flown , it had a Power Flow and a 61 inch pitch Sensenich prop. I wonder how it will fly when the engine gets broken in. -----Original Message----- From: jwellum@aol.com To: teamgrumman-list@matronics.com Sent: Sat, 20 Sep 2008 6:48 pm Subject: Re: TeamGrumman-List: 1977 Cheetah Very impressive!!! What mods were done to the engine=3F I have been curious about the performance of a cheetah with a few modifications. Jeff In a message dated 9/20/2008 2:20:37 P.M. Central Daylight Time, teamgrum man@aol.com writes: I just finished restoration of a Cheetah, 1670 TTSN. Engine by LyCon, who else. It dyno'd at 188 hp, leaned, at 2725 rpm. With a Power Flow, a nd a 61 inch pitch Sensenich [61 inch pitch], static rpm was just a touch o ver 2400 rpm, leaned. Yesterday was the first flight. Climbed at 1500 fpm at 92 knots right from take-o ff (1536 feet) to 4500 feet. Straight and level at 4500 feet i t easily ran over red-line. Too easily. Needs at least 2 inches more pitc h. Flew to Lancaster pushing a 20 to 30 knot headwind all the way. Two ho urs into the return flight, I took it to 12,000 feet, turned red-line and t hen some, easily. Needs more prop. Complete instrument panel upgrade. 2 430s, 340 audio panel and a 327 t ransponder. JPI EDM 700. Digital tach. Mitchell gauges, AuCountry eyebro w, Nu-Lites. 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