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  #1  
Old 12-31-2019, 05:11 AM
bryannortje bryannortje is offline
 
Join Date: Jan 2017
Location: Gold Hill - NC
Posts: 145
Default IO-360 Fuel Injection

Hi Guys

I wonder if someone can help. I have an IO-360 Parallel valve 180Hp w/CS prop. At WOT full rich I only get 13.8-14 gph fuel flow which seems low based on some reading I have done.

What should I expect to see and whom would you guys recommend to send my fuel servo in to for a IRAN check and service. I am based in NC.

Thanks
Bryan
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  #2  
Old 12-31-2019, 05:38 AM
Dean Pichon Dean Pichon is offline
 
Join Date: May 2006
Posts: 529
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Hi Bryan,

I typically see 16.5-17.0 GPH on take-off with the same engine/prop you describe. Your flow does sound low. Is your fuel flow sensor well calibrated? I assume you are seeing that flow at a low altitude (<1500 feet)?

I have an Airflow Performance injection system. I have had it serviced only once by Don Rivera at Airflow Performance. Very good service from Don.

Good luck,

Dean
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  #3  
Old 12-31-2019, 05:50 AM
bryannortje bryannortje is offline
 
Join Date: Jan 2017
Location: Gold Hill - NC
Posts: 145
Default Fuel Flow

Hi Dean

Fuel flow in gph reading is within one gallon over 4 hrs of flying. Our field elevation is 740ft.

Thanks
Bryan
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  #4  
Old 12-31-2019, 06:18 AM
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Mark H Mark H is offline
 
Join Date: Jul 2011
Location: Indianapolis, IN, USA
Posts: 86
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I would suggest you call Airflow Performance. They are located in Spartanburg, SC. Your fuel flow sounds low, but you should do some EGT tests before sending in the servo. Don at Airflow Performance can help you with what to look for.
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  #5  
Old 12-31-2019, 07:21 AM
bryannortje bryannortje is offline
 
Join Date: Jan 2017
Location: Gold Hill - NC
Posts: 145
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Wilco - thanks Guys
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  #6  
Old 12-31-2019, 07:40 AM
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airguy airguy is offline
 
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,070
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Agreed, that sounds low by 2.5-3 gph.
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Garden City, TX VAF 2020 dues paid
N16GN flying 650 hrs and counting! IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #7  
Old 12-31-2019, 07:42 AM
TS Flightlines TS Flightlines is offline
 
Join Date: Apr 2010
Location: Ridgeland, SC
Posts: 2,578
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Brian---youre at Gold Hil-----Kahuna and Ron Schreck are both there and could possibly help.
Don Rivera is an easy flight to Spartanburg---

Tom
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Joint Venture with Aircraft Specialty
Teflon Hose Assemblies for Experimentals
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Ridgeland, SC
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  #8  
Old 12-31-2019, 08:49 AM
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JonJay JonJay is offline
 
Join Date: Jan 2007
Location: Battleground
Posts: 4,348
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Check the simple stuff first. Make sure you?re hitting the stops for throttle and mixture.
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  #9  
Old 12-31-2019, 08:54 AM
Bavafa Bavafa is offline
 
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,318
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Also, make sure your fuel flow reading is calibrated and reading correctly.
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N825SM RV7A - IO360M1B - SOLD
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  #10  
Old 12-31-2019, 09:48 AM
Full Throttle Full Throttle is offline
 
Join Date: Aug 2018
Location: Norwalk, CA
Posts: 40
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Bryan,
What is you RPM and Manifold Pressure when you see those low fuel flow readings?
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