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01-31-2016, 09:54 PM
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Join Date: Sep 2007
Location: Florence, AL
Posts: 626
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Quote:
Originally Posted by N427EF
For starters, you need to know what the compression ratio is on your engine.
Any ratio below 8:5 to 1 appears to do well for people running mogas.
A cool running fuel system is required to keep your vapor lock issues in check.
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We are at 7.0:1. O-320B1B.
Quote:
Originally Posted by N427EF
Running 100LL in one tank and mogas in the other is a very good way to test
your system before you go all out on mogas only.
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That's the plan.
Quote:
Originally Posted by N427EF
Before you invest in a fuel transport set up, consider 5 gal cans.
Fill up 3 or 4 to top off your tank and store none of the auto fuel in your hangar. You want mogas to be as fresh as it can be and besides as many
have pointed out, storing gas in your hangar may be frowned upon by authorities
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Yeh, we aren't allowed any cans in the hangar per our lease.
Quote:
Originally Posted by N427EF
Lastly, take advice from people with lots of mogas experience.
You can look forward to a cleaner running engine without lead contamination and deposits on your spark plugs 
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That's why I'm here.
Thanks for the help.
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01-31-2016, 09:59 PM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Quote:
Originally Posted by nippaero
Hey rockwoodrv9a,
Did you know we have ethanol free MOGAS at the Nampa Airport? Payette also has it at the pump. I used to fly up there and fuel before Nampa brought it in this summer.
Are you guys using mogas only using ethanol free gas? What octane? Our Costco gas here contains ethanol.
Mike
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Here ya go:
http://pure-gas.org/
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01-31-2016, 10:05 PM
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Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
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Quote:
Originally Posted by rv7charlie
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I know about the ap. I am at the Caldwell airport, not Nampa. Buying fuel off airport is quite a bit cheaper than on airport. One of my cars runs on premium fuel too along with a bike and boat. 100g goes pretty quick.
__________________
rockwoodrv9a
Williamston MI
O-320 D2A
Awaiting DAR Inspection
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01-31-2016, 10:13 PM
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Join Date: Jun 2015
Location: Alberta
Posts: 84
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No STC needed. Your 0320 should be real happy on car gas.
Just be certain that the fuel contains no ethanol.
I have a 6A. I used to use regular but it now contains ethanol, at least where I live, so I have to use super unleaded. Works great.
if you are still building the plane put in a vapor return line.
As far as gas cans in the hanger, you should never store gasoline or empty cans in a building.
Go to the local bulk fuel supplier and buy a drum of gas. Put a hand pump on it and reuse the drum. You get a little exercise but it only takes a couple of minutes to fill an RV size tank, and it does not require any power.
Be sure to attach a ground wire.
__________________
RV-6A slow build,
serial # 21681. First flight March 1993
Dec 2019 donation paid
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01-31-2016, 10:43 PM
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Join Date: Jan 2007
Location: Mukilteo, WA
Posts: 128
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Be Carefull
Watch out for static electricity. Most airports require that all fueling is done out side of hangers if at all.
https://youtu.be/g7IulTJlifo
__________________
Tom Powers
RV8 (Done)
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01-31-2016, 11:03 PM
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Join Date: Jan 2015
Location: KC, MO
Posts: 374
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__________________
RV-4 - 0-320 (160HP)
www.KCFlight.org
Tinker
ATP/CFI/II/MEI
N617TN
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02-01-2016, 10:39 AM
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Join Date: Mar 2008
Location: Reno NV
Posts: 542
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Mogas without an STC..
Guys: This is not intended to hijack the thread, but one more price advantage to using mogas is that some states rebate the road tax. You may have to jump thru some hoops, but may be worth it. For example, here in NV the rebate is 32 cents per gallon. Dan from Reno
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02-01-2016, 01:32 PM
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Join Date: May 2011
Location: Berlin, Germany
Posts: 84
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There is a good SI (SI-1070S) from Lycoming regarding aviation grade and automotive fuels:
http://www.lycoming.com/Portals/0/te...e%20Models.pdf
__________________
Kai
flying RV-9a, O-320, G3X Touch
a father&son project
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02-01-2016, 03:19 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Quote:
Originally Posted by ChiefPilot
When premium, no ethanol mogas is just over $2/gallon cheaper than 100LL, I'm not sure I understand your point. The delta, at least around here, is larger than it's ever been ($2.15/gal vs. $4.19/gal).
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$1.83/gal for premium vs. $3.57 for 100LL.
The difference based on 100 hrs/yr at 7.3 gal/HR is $1,270.20.
Buying a trailer, tank, hose, etc., going to the gas station, storing the trailer / tank etc. is not worth that perceived savings to me. I am not commenting on the mogas vs. avgas debate.
I did pull my neighbor's trailer / tank to top it off and have never been so scared of driving anything in my life. If I were to tanker fuel, I would go buy an old small pickup and bolt a tank to its bed, raising the cost even more.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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02-01-2016, 04:48 PM
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Join Date: Sep 2007
Location: Florence, AL
Posts: 626
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Quote:
Originally Posted by N941WR
$1.83/gal for premium vs. $3.57 for 100LL.
The difference based on 100 hrs/yr at 7.3 gal/HR is $1,270.20.
Buying a trailer, tank, hose, etc., going to the gas station, storing the trailer / tank etc. is not worth that perceived savings to me. I am not commenting on the mogas vs. avgas debate.
I did pull my neighbor's trailer / tank to top it off and have never been so scared of driving anything in my life. If I were to tanker fuel, I would go buy an old small pickup and bolt a tank to its bed, raising the cost even more.
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Everyone situation is going to be a bit different.
I'm looking at $1.6X vs $4.4X locally...
I won't be buying a trailer, tank, hose, etc. I can typically get by on 20 gallons per flight, so I'll be doing 5g cans.
I pass the MoGas station on the way to the airport, so that's a moot point. Time picking up the fuel is the same as walking the plane to fuel pumps, etc.
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