Did the ability to burn auto fuel affect engine choice?

danielhv · #1 08-23-2010, 07:03 PM

Of course Im thinking way far ahead... but I always imagined a 180hp (or 200 if I strike it rich!) fuel injected engine... Long story short, a friend is letting me fly his cessna 150, and paying HALF the price per gallon for auto fuel is becoming a bad habbit of mine. To the point where I cringe paying $3.80/gal for 100LL!

So my question is did this play into your engine selection? From what I have read so far... the only way I can do mogas is to get a D rated Lyc. O-360. Lose the fuel injection, and be happy with about 170hp...

Rhino889 · #2 08-23-2010, 07:20 PM

IO-375?

Injection and 197hp mogas / 210hp 100LL

Greg Arehart · #3 08-23-2010, 07:44 PM

Daniel,

Definitely affected my choice. I got an 8.5 compression IO-360 Superior, which burns premium mogas. The state will refund my road use tax, so currently I'm paying maybe $2.90/gallon. With avgas around $4.50, and using 7 gal/hour, that translates to around $10/hour in savings. Buy two hours and get one free!

greg

JakeLewis22 · #4 08-23-2010, 08:09 PM

I opted for the AeroSport IO-375. I don't plan to run auto gas but I wanted to make sure I had the option more so because of the uncertain future of 100LL.

Bugsy · #5 08-23-2010, 08:26 PM

I got an aerosport O-360 wanting the option for mogas 8.5 compression. I dont know if I'll ever run mogas but I have the option.

Daver · #6 08-23-2010, 08:36 PM

When I started looking for a "deal" on an engine, I would have jumped on the best deal as long as it would work in my -9A.

The "deal" turned out to be an o-320E2A 150 HP lyc. The fuel required is 80/87 so I think it'll run on regular mogas. 7:1 compression ratio.

As a matter of fact, I've been doing some ground testing using mogas. The engine seems to like it just fine.

With 100ll prices as high as they are, I'm not sorry I ended up with this engine.

Now I just need to figure out how to transport mogas to the airport

Dave

Sid Lambert · #7 08-23-2010, 08:37 PM

I have a mogas burning RV now but like most men I am always looking on to the next and best thing. If I build an -8 it will have a mogas burning engine. If my -4 engine needs to be redone it will remain a mogas burning engine.

It's easy to find a local place that sells relatively cheap avgas but odds are it won't be your home field and it sucks having to stop to get gas on your way home.

johnfurey · #8 08-23-2010, 08:39 PM

Stock Lyc IO-360 from Vans so I could run Mogas if needed but have no intentions of doing so at this time.

Vlad · #9 08-23-2010, 08:42 PM

Bought brand new Lycoming with 8.5 compression.

IowaRV9Dreamer · #10 08-23-2010, 09:46 PM

Quote:

Originally Posted by Daver

The "deal" turned out to be an o-320E2A 150 HP lyc. The fuel required is 80/87 so I think it'll run on regular mogas. 7:1 compression ratio.

I have the same engine as Dave (but still in pieces) and was considering converting it to 160 HP (to match my used prop)... but that means the compression will be 8.5:1.

Will I be able to run mogas with that compression? It is about $1/gallon cheaper around here. As for ethanol, I've been able to confirm that my Andair gascolator, fuel selector don't mind it and I think the Facet pump and red cube will be OK too. That just leaves the engine driven pump and the carb itself....