Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

RPM

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> JabiruEngine-List
View previous topic :: View next topic  
Author Message
BobbyPaulk(at)comcast.net
Guest





PostPosted: Thu Aug 28, 2014 4:31 pm    Post subject: RPM Reply with quote

DonB,

I just flew today and observed the following:

My full throttle RPM at 100 MPH is 2830. ( From 60 to 1000' )

EGT's are 1200 to 1250 on #1 thru 4 and 6.

Number 5 is about 1300 ~ 1310. Outside air temp 92 degrees.

My Ram Air ducts at the rear tuck back toward the front at about a 45 degree angle following the curvature of the heads.

My conditional insp. is due in Sept and I am planning on tilting the bottom of the carb a little more toward the #5 cylinder.

I still have not heard from anyone who has drilled out the aerator that sits on top of the needle jet and the passage to it.


Bobby ( age 76 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Needle Jet
Status - Flying 224 hrs.

[quote][b]


- The Matronics JabiruEngine-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?JabiruEngine-List
Back to top
pete(at)usjabiru.com
Guest





PostPosted: Fri Aug 29, 2014 4:54 am    Post subject: RPM Reply with quote

If you are considering tilting the carb only do it if cruise egt’s are higher on one side than the other.  Do not tilt the carb based on a full throttle climb reading.  Climb the aircraft to a typical cruise altitude, throttle back to a cruise rpm, let temperatures stabilize and then write down your EGT’s.  If the right side cylinders are consistently higher than the left side then consider tilting the carb.

Pete

From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of BobbyPaulk(at)comcast.net
Sent: Thursday, August 28, 2014 7:30 PM
To: Server, JabiruEngine-List Digest
Subject: RPM

DonB,

I just flew today and observed the following:

My full throttle RPM at 100 MPH is 2830. ( From 60 to 1000' )

EGT's are 1200 to 1250 on #1 thru 4 and 6.

Number 5 is about 1300 ~ 1310. Outside air temp 92 degrees.

My Ram Air ducts at the rear tuck back toward the front at about a 45 degree angle following the curvature of the heads.

My conditional insp. is due in Sept and I am planning on tilting the bottom of the carb a little more toward the #5 cylinder.



I still have not heard from anyone who has drilled out the aerator that sits on top of the needle jet and the passage to it.





Bobby ( age 76 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Needle Jet
Status - Flying 224 hrs.




Quote:
http://www.matronics.com/Navigator?JabiruEngine-List
0
Quote:
1
Quote:
2
Quote:
3
Quote:
4
Quote:
5
Quote:
6
Quote:
7
[quote][b]


- The Matronics JabiruEngine-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?JabiruEngine-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> JabiruEngine-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group