---------------------------------------------------------- JabiruEngine-List Digest Archive --- Total Messages Posted Fri 09/20/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:37 AM - Carb Jetting (BobbyPaulk@comcast.net) 2. 08:05 AM - Re: Carb Jetting (GERALD A. APPLEFELD) 3. 12:58 PM - Re: Carb Jetting (George Andre) ________________________________ Message 1 _____________________________________ Time: 07:37:46 AM PST US From: BobbyPaulk@comcast.net Subject: JabiruEngine-List: Carb Jetting List Finally finished up the Conditional Inspection and flew yesterday. Changing out the 285 needle jet to a 290 dropped the max EGT on the hottest cylinder from 1425 to 1349 with most cylinders about 1220 to 1250. All cylinders were at or way under 300 deg. CHT. This was taken at 1200' AGL turning 2750 RPM @ 24" MP and indicating 124 mph Bobby ( age 75 ) Zodiac 601 XL "B" Jabiru 3300 S/N 1141 Sensenich 64" x 51" Prop Bing Carb 260 Main & 290 Needle Jet Status - Flying 188 hrs. Do Not Archive ________________________________ Message 2 _____________________________________ Time: 08:05:35 AM PST US From: "GERALD A. APPLEFELD" Subject: Re: JabiruEngine-List: Carb Jetting Bobby, What did you get for fuel flow with the 2.90 jet. I started using that and got a higher fuel flow-over 6 GPH at cruise. Like you my EGT's and CHT are good with it. Jerry On 9/20/2013 10:37 AM, BobbyPaulk@comcast.net wrote: > List > Finally finished up the Conditional Inspection and flew yesterday. > Changing out the 285 needle jet to a 290 dropped the max EGT on the > hottest cylinder from 1425 to 1349 with most cylinders about 1220 to > 1250. All cylinders were at or way under 300 deg. CHT. This was taken > at 1200' AGL turning 2750 RPM @ 24" MP and indicating 124 mph > Bobby ( age 75 ) > > * > > > * ________________________________ Message 3 _____________________________________ Time: 12:58:54 PM PST US From: George Andre Subject: Re: JabiruEngine-List: Carb Jetting If at 1200 AGL, are you in Colorado or Florida? Makes about a 6000 foot diff erence. Other big question is how does the speed and fuel burn/flow change w ith the new jet? I expect you traded cooler EGT for slower speed and less ec onomy. (And sooty spark plugs). Sent from my iPhone On Sep 20, 2013, at 9:37 AM, BobbyPaulk@comcast.net wrote: > List > Finally finished up the Conditional Inspection and flew yesterday. Changin g out the 285 needle jet to a 290 dropped the max EGT on the hottest cylinde r from 1425 to 1349 with most cylinders about 1220 to 1250. All cylinders we re at or way under 300 deg. CHT. This was taken at 1200' AGL turning 2750 RP M @ 24" MP and indicating 124 mph > > > Bobby ( age 75 ) > Zodiac 601 XL "B" > Jabiru 3300 S/N 1141 > Sensenich 64" x 51" Prop > Bing Carb 260 Main & 290 Needle Jet > Status - Flying 188 hrs. > > Do Not Archive > > > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message jabiruengine-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/JabiruEngine-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/jabiruengine-list Browse Digests http://www.matronics.com/digest/jabiruengine-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.