Sender: <marv@lancaironline.net> (Marvin Kaye)
To: lml
Date: Wed, 13 Nov 2002 08:58:16 -0500
Message-ID: <redirect-1862087@logan.com>
From: "Mike Hutchins" <mhutchins@attglobal.net>
Reply-To: <mhutchins@attglobal.net>
Subject: RE: [LML] Continental TSIO550 Power vs. RPM vs. MP
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Allan,

My chart is from TCM and is for a TSIO-550-B and is dated 5-31-91, Curve No.
91-083. It shows curves for Rich Limit, Best Power, Peak EGT and Best
Economy up to 75% Power. After that, it only shows a narrow range around the
rich limit up to 350 HP. No RPM, MP, or relative EGT's are given for the
chart.

At 350HP it shows a range of 245-255 LBS/HR (40.8-42.5 GPH using 6 LBS/GAL).
At 263HP the Rich Limit is:   155 LBS/HR (25.8 GPH)
             Best Power is:   126 LBS/HR (21.0 GPH)
             Peak EGT is:     110 LBS/HR (18.3 GPH)
             Best Economy is: 105 LBS/HR (17.5 GPH)

Another chart from TCM, Curve No. 91-085, indicates 75% power can be
achieved in any number of combinations of RPM and MP when running Full Rich.
The following all give the same 263 HP:
     2700@29"
     2600@30"
     2500@31"
     2400@32.8"
     2300@34.6"

These figures all came from the TCM TSIO-550-B Detailed Model Specification.
You should be able to buy this from TCM, unless they changed their policies
since I bought mine (7-9 years ago).

Hope this helps. It's not exactly what you wanted, but it's close. Maybe
George Braly has some data from his dyno that he can share with us.

Regards,
Mike Hutchins


-----Original Message-----
From: scherr [mailto:scherr@direcpc.com]
Sent: Tuesday, November 12, 2002 8:40 PM
Subject: [LML] Continental TSIO550 Power vs. RPM vs. MP


Does anyone have a set of charts that show the relationship between
power/RPM/MP for the TSIO550, for rich or lean of peak?  By fuel flow?