Cylinder head temps

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Tom-B
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Re: Cylinder head temps

Post by Tom-B »

As someone who wants to improve my CHTs and later install a PowerFlow, my AP is ordering an Arizona Baffle Kit from Diamond. The Diamond Part Number is D41-7166-11-00_2.

I have a nice PDF with Pics of this but being a very new poster to this great forum, I am struggling with how to attach this PDF.
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Rich
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Re: Cylinder head temps

Post by Rich »

As it happens, Today I was helping my mechanic research what settings to use when installing a new JPI system (an EDM830, IIRC) into an Arrow. Since the plane did not already have a CHT gauge we had to figure out where to set the redline. In the process I looked ours up. I had forgotten that the green zone, according to the AFM goes clear up to 475 F, with redline at 500, and a yellow between.

We finally did dig up the specs for the IO360 variant in this plane, and 500 is indeed the max.

Of course, this is not for continuous operation, but I'd forgotten how high these numbers were.
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5
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astaib
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Re: Cylinder head temps

Post by astaib »

Hello,

I’m interested by the pdf.

Thanks!
Arnaud
DA40 Star 180 / 40.026 / 2001
Wingtip, landing and taxing LED (Whelen)
Skitube
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Steam gauges
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perossichi
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Re: Cylinder head temps

Post by perossichi »

Installed Arizona baffle last week. Cyl 1 is never more than about 370 even at best power.

Chandelles really raise temps. Will try soon.

Seems to work very well.

Many thx to those in the forum who told me about the new baffle

P
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astaib
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Re: Cylinder head temps

Post by astaib »

Hello,

Unfortunately the dealer in France is unable to order it.
It sees that they cannot find the reference.

Can you help?

Thanks.
Arnaud
DA40 Star 180 / 40.026 / 2001
Wingtip, landing and taxing LED (Whelen)
Skitube
GNS430 NON-WAAS
Steam gauges
Non certified ADS-b
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Steve
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Re: Cylinder head temps

Post by Steve »

Arnaud:

The part number is: D41-7166-11-00/2

JPG attached:
Baffle002.jpg
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astaib
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Re: Cylinder head temps

Post by astaib »

Thank you Steve.
Arnaud
DA40 Star 180 / 40.026 / 2001
Wingtip, landing and taxing LED (Whelen)
Skitube
GNS430 NON-WAAS
Steam gauges
Non certified ADS-b
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Re: Cylinder head temps

Post by gtmize »

Would running ROP solve a hot cylinder?

I'm curious as I had a Columbia 400 once upon a time which the factory insisted on running LOP .. and it did fine.

Elsewhere in this forum the consensus seems to be to stay ROP. Perhaps you have GAMI injectors?
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astaib
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Re: Cylinder head temps

Post by astaib »

Hello,

When I run LOP i’m Fine now. CHT are around 375 and balanced. But when I follow the poh value for ff i’m Above 400 and cylinder 1 has higher CHT than other.
So i’m Cruising lop now, the side effect is 7 knot slower, but I save fuel!
Arnaud
DA40 Star 180 / 40.026 / 2001
Wingtip, landing and taxing LED (Whelen)
Skitube
GNS430 NON-WAAS
Steam gauges
Non certified ADS-b
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