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lee.logan(at)gulfstream.c
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 Posted: Mon Oct 15, 2007 9:45 am Post subject: Fuel Flow Setting |
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Anyone know how to increase the fuel flow to my IO-360 during takeoff?
I've been all over the internet on this one and can't find much info on the
subject. I am flowing 16.9 gph on takeoff at full power but it is not
enough to keep my egt and cht numbers down (I'm seeing 1450 egt on
takeoff). I'd like to bump my takeoff fuel flow up to around 18 gallons.
According to John Deakin's formula, 16.9 gph is about right for 180 hp, but
my engine is pumped up a little and needs more gas, I think. I have to
throttle back to cool it down and climb at fairly high indicated airspeeds
to keep it there. At cruise, all is well.
Is the control for this on the fuel throttle body or somewhere else?
Lee...
Lee Logan
Government Programs and Sales Support
Gulfstream Aerospace Corporation
Savannah, Georgia
This e-mail message, including all attachments, is for the sole use of the
intended recipient(s) and may contain legally privileged and confidential
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that you have either received this message in error or through
interception, and that any review, use, distribution, copying or disclosure
of this message or its attachments is strictly prohibited and is subject to
criminal and civil penalties. All personal messages express solely the
sender's views and not those of Gulfstream Aerospace Corporation. If you
received this message in error, please contact the sender by reply e-mail
and destroy all copies of the original message.
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Steve Glasgow
Joined: 10 Jan 2006
Posts: 674
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| Posted: Mon Oct 15, 2007 1:22 pm Post subject: Fuel Flow Setting |
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Lee, my understanding is FF is directly related to HP. Don't know what you mean by pumped up? How much etc?
I would look into the mixture setting it may be running to lean and causing the problem. Look for the rich/lean adjustment.
Call who ever manufactured your Injection System.
Cappy
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Steve Glasgow-Cappy
Cappy's Toy
RV-8 N123SG |
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ronschreck
Joined: 04 Aug 2006
Posts: 192
Location: Gold Hill Airpark, NC (NC25)
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| Posted: Mon Oct 15, 2007 3:07 pm Post subject: Fuel Flow Setting |
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You didn't mention which fuel control you have. I have a Airflow
Performance and there is a main jet that you can remove and put in a larger
size. They also handle Bendix controllers.
http://airflowperformance.com/html/cat_16.html
Ron Schreck
RV-8, "Miss Izzy"
Gold Hill Airpark, NC
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libertyva(at)msn.com
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| Posted: Tue Oct 16, 2007 8:51 am Post subject: Fuel Flow Setting |
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Lee,
You are right in following John Deakin's advise.
I have a carb on my 0-360 A1A.......
I have installed the enrichment kit
AND drilled the jet larger.......it really brought the temps down.
The FF on TO is more connected to the induction system than HP....I think.
The published numbers in the POH's are very misleading as they are done for OEM installs.
Each setup should be tweaked, but I don't see many people talking about it.
Good Luck
Bob Martin
RV-6
0-360 c/s
> Subject: Fuel Flow Setting
| Quote: | To: rvsoutheast-list(at)matronics.com
From: lee.logan(at)gulfstream.com
Date: Mon, 15 Oct 2007 13:41:40 -0400
--> RVSouthEast-List message posted by: lee.logan(at)gulfstream.com
Anyone know how to increase the fuel flow to my IO-360 during takeoff?
I've been all over the internet on this one and can't find much info on the
subject. I am flowing 16.9 gph on takeoff at full power but it is not
enough to keep my egt and cht numbers down (I'm seeing 1450 egt on
takeoff). I'd like to bump my takeoff fuel flow up to around 18 gallons.
According to John Deakin's formula, 16.9 gph is about right for 180 hp, but
my engine is pumped up a little and needs more gas, I think. I have to
throttle back to cool it down and climb at fairly high indicated airspeeds
to keep it there. At cruise, all is well.
Is the control for this on the fuel throttle body or somewhere else?
Lee...
Lee Logan
Government Programs and Sales Support
Gulfstream Aerospace Corporation
Savannah, Georgia
This e-mail message, including all attachments, is for the sole use of the
intended recipient(s) and may contain legally privileged and confidential
information. If you are not an intended recipient, you are hereby notified
that you have either received this message in error or through
interception, and that any review, use, distribution, copying or disclosure
of this message or its attachments is strictly prohibited and is subject to
criminal and civil penalties. All personal messages express solely the
sender's views and not those of Gulfstream Aerospace Corporation. If you
received this message in error, please contact the sender by reply e-mail
and destroy all copies of the original message=======================
&g======
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Peek-a-boo FREE Tricks & Treats for You! Get 'em! [quote][b]
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Dale Ensing
Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC
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| Posted: Tue Oct 16, 2007 10:44 am Post subject: Fuel Flow Setting |
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Bob,
I would like to learn more about the enrichment kit you refer to. I have an O-360 A1A, carburetor, high compression pistons and LASAR ign. with C/S prop.
Dale Ensing
[quote] ---
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Dale Ensing
RV-6A
Aero Plantation
Weddington NC |
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