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Home✈️Aircraft🚁HelicopterGasser Model RC HelicoptersOther › Which fuel are you using
03-18-2012 01:14 PM  7 years ago
Blkmerlin1

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E wenatchee Washington U.S.A

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Coleman fuel with 32:1 lawnboy mix runs great no problems about $9 a gallon.
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03-18-2012 01:22 PM  7 years ago
Eury

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Dover NH USA

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I dont see the point in running SEF94. I looked at it and it costs as much as nitro. Once you start burning that stuff, why put up with the lower performance of a gasser if you are willing to spend that much on fuel?Nick Crego

Citizen #0168
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03-18-2012 01:23 PM  7 years ago
Carey Shurley

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Orlando, FL - USA

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before this is over I think there will be a gasoline alternative for our use that winds up improving power, doesn't smell awful and doesn't break the bank. Just a matter of timeProprietor - Gas Powered Helicopters
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03-18-2012 01:29 PM  7 years ago
Pistol Pete

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Seffner, FL

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Given: Coleman is being used in gassers. Proven here daily.

AS per Wiki:
Coleman fuel has an octane rating of 50 to 55 and a flammability similar to gasoline, it has none of the additives found in modern gasoline and cannot be used as a substitute for gasoline, kerosene or diesel fuel in modern engines.[4] Its high heat of combustion and lack of octane boosting additives like tetra-ethyl lead will destroy engine valves, and its low octane rating would produce knocking

What are we missing? Other than the lack of gasoline smell?
~~Enjoying the hobby one flight at a time~~
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03-18-2012 01:32 PM  7 years ago
Rototerrier

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Fayetteville, GA - USA

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My point exactly Eury. But, I believe the biggest arguments are going to be the flight times and additives.

Even at these prices, it would still be more "economical" to fly Gassers because of the 20-30 minute flight times. But, those prices are still nuts and I probably really would switch back to nitro and sacrafice flight time if I weren't given a choice and were forced to pay that price.

As far as additives go, I believe the argument is usually related to the carb and the stuff in pump gas breaking down rubbers seals, etc.
Considering you could buy a new carb with the savings in pump gas every 2 gallons, that really isn't much of an argument either. I am still running on some pretty old carbs now and couldn't tell you how many gallons I have thru them. It's well over 2 gallons

Stink...yea, pump gas stinks. I did try Coleman for a couple gallons but couldn't get it to work with my Dubro fuel pumps..the cheapo hand cranks. The stuff went everywhere. Not sure what happened there but I had 2 pumps and flowed thru both. If I wanted to try to find a better fuel pump that wouldn't leak with coleman, I would probably switch back to get that stink gone. Just not in the mood to deal with it for now. Until these pumps give out on me, I will just keep on keepin on with pump gas.
Gassers Rule, Nitros Drool, Electrics...uhhh...Joule?
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03-18-2012 01:55 PM  7 years ago
fastflyer20

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N. Tonawanda, NY

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Ethanol around here is wreaking havoc in small engines, was not an issue until one year ago. Different areas of the country have different gasoline blends, so if it has not hit your area yet, it may at some point.

I don't mind the smell of gas but my wife does, running Coleman has completely eliminated the smell complaint.

Sparx has said that SEF is available in 5 gallons, that is when the price may come in line with the cost of Coleman. Always good to know your alternatives...
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03-18-2012 02:40 PM  7 years ago
Carey Shurley

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Orlando, FL - USA

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try the MPI fuel pumpProprietor - Gas Powered Helicopters
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03-18-2012 02:57 PM  7 years ago
Rick~K

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WV - U.S.A.

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Anyone running Coleman in their TRM engines?
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03-18-2012 03:12 PM  7 years ago
Carey Shurley

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Orlando, FL - USA

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yeah, thats all I've been running in themProprietor - Gas Powered Helicopters
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03-18-2012 03:30 PM  7 years ago
Rick~K

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WV - U.S.A.

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Thanks, good to know since the one I'm getting ready to start will be living in the house.
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03-18-2012 04:44 PM  7 years ago
rbort

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Franklin, MA - USA

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Carey
In FL you can get racing fuel at that gas station right next to Bithlo, I forget the octane rating may be 94 not sure but it doesn't have the additives in it or whatnot as I remember. Rick gets that stuff right there we stopped for him to pick some up.

-=>Raja.
MA 1005 Hanson 2703D, 4300 flts
Spectra 27 3DMax, 3422 flts
Whiplash V1-2 Hanson 300, 1890 flts
Whiplash V2 Hanson 300, 800 flts
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03-18-2012 04:44 PM  7 years ago
turboomni

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East of the Equator

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before this is over I think there will be a gasoline alternative for our use that winds up improving power, doesn't smell awful and doesn't break the bank. Just a matter of time
If you could make any fuel you wanted for our Zenoah heli engines what would you have to do to make more power? Guys run Colman 50 octane with good results. Guys run pump 87 with good results. Guys running alittle over 90 octane say it's good but any higher most experts seem to agree it is not advisable to use high octane much over 90 like aviation fuel.race fuel, as you will get diminishing returns in power.
I would think you could design a Zenoah heli engine to be run on Aviation or 100+ octane race fuel specifically and make more power than ones that we now use which can run on far lower octanes. But I'd bet the race fuel designed Zenoahs wouldn't like Coleman!!
I may be wrong in this but it's like putting super premium gasoline in a Toyota Corolla. It is a waste of money.
Setup is everything, All my heli's can fly far better than I can pilot them
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03-18-2012 07:15 PM  7 years ago
James Kovach

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canton, oh - US

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I dont see the point in running SEF94. I looked at it and it costs as much as nitro. Once you start burning that stuff, why put up with the lower performance of a gasser if you are willing to spend that much on fuel?
You cannot do a direct gallon to gallon comparison between nitro and gassers. It takes 3-4 gallons of nitro to get the same run time as one gallon of gas/SEF/etc. So you would have to be paying close to $100 per gallon of gas/SEF/etc for it to be the same running cost.
Sparx has said that SEF is available in 5 gallons, that is when the price may come in line with the cost of Coleman. Always good to know your alternatives...
I live in a area that is big into drag racing so getting VP Racing products is not all that difficult. We have large warehouses around here that do nothing but distribute Racing Fuels, Heating Fuels and Farm Fuels. I am able to get 5 gallon drums of SEF94 for $55. So it is costing me a few dollars more than the Coleman I pay $10 a gallon for.

VP Racing bought Powermaster Fuels. Powermasters is a good size hobby fuel company. I'd imagine once they start distributing their own blend of the SEF94 under their label, it will be easier to get and hopefully cheaper as well.

Watch at YouTube

Sparx....
So VP Fuels SEF94 has a lighter smell than Coleman ? Or just smells different ?
It smells different. But it is in the "non-offensive" range like Coleman fuel IMO. It smells kinda like paint thinner. The smell dissipates very quickly as well. Does not linger on your hands like gas at all.

I have ran Coleman as well in both MOdified and stock engines. I had not issues with it. I just find that SEF94 gives a better performance.
*disclaimer: These are my opinions. Agree or disagree, Your Call :)
Let'r Rip Tator Chip
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03-20-2012 05:08 AM  7 years ago
turboomni

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East of the Equator

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Man Sparx you have been running this INFOMERCIAL alot on many forums. Why>? What is your agenda specifically?
I know you will simply say "Cause I Like It " That isn't enough especially even at your prices. I tried for free the SEF fuel today from a big sealed 5 gallon tub. I ran abit over two tanks of Sef and two tanks of my 87 Octane with Penziol Synthetic Marine oil from last October. I wrote it all down and will give a report of my findings in a day or so . It is too late for me to drag the info out at the moment.
But I will say it aint bad.......
Setup is everything, All my heli's can fly far better than I can pilot them
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03-20-2012 02:57 PM  7 years ago
Rick~K

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WV - U.S.A.

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Anyone running Royle Purple?
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03-20-2012 03:08 PM  7 years ago
greenboot

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Marblehead, OH

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A guy was just telling me he uses car gas in his coleman lantern cause it is the same thing and much cheaper. I told him heli guys use coleman fuel instead of car gas. You should have seen the puzzled look on his face.Tom
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03-20-2012 07:53 PM  7 years ago
Toxic Al

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chuluota, Fl

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I am switching my software on my dyno and will be testing more fuels and mufflers, but I was testing a motor today and found pump gas making more power than coleman.I will say it was about 1/4 hp everywhere and more in some areas but with that being said the coleman fuel runs fine and i run it myself. my heli's are in my our bedroom and my wife has no idea and I want to keep it that way. I have not tested any other fuel but will test sef and alky as well. when I get the new software up and going i will put some info so it can be viewed on a stk engine. Peace, Al
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03-20-2012 10:56 PM  7 years ago
turboomni

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East of the Equator

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My experience with SEF went well. In climbout tests it was within pump gas by 10 to 20 rpm headspeed. Sometimes the sef did better ,soometimes the last years [October} gas did better but only within 10 to 20 rpms. The pump gas won overall by a very small margin but it is possible it could have been the other way around too it was so close. The last run on my pump gas it really pulled the best numbers over SEF but I believe it was because the air temp had dropped by 10 degrees or so by that point so don't think that run was a valid one.
Sef idled very well. It idled as good as my old gas. I also flew tanks of each [purging the carb annd tank when changing over fuel] .
On Sef I thought it was smoother somehow ,,on my pump gas I thought then it was smoother so I guess I was trying to notice something that wasn't there.
I frankly think it is a wash. There really wasn't any area I felt either fuel out performed the other in any scenario.
The ethanol in pump gas doesn't seem to hurt performance on our Zenoah engines I guess since these engines can run on 50 octane ,,hell maybe even lower !!
A more powerful engine could be a Zenoah that was designed to run specifically on 100 octane or more ,ported with a higher compression ratio to take advantage of that specific fuel. But forget running pump gas ,Coleman,or SEF in that engine.
Like I posted before putting 94 octane in our engines or at least my Hanson 26 is like putting 94 octane in a Toyota Corrola. It may make you feel good but does you nothing simply because the engine has no way to utilize that high an octane.
Sef 94 did well ,as good as my pump fuel, and after a whole afternoon using both fuels I'll be damned if I could tell a difference.
So I will stay with pump gas at under 4 bucks a gallon with the Penzoil Marine oil.
Setup is everything, All my heli's can fly far better than I can pilot them
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03-20-2012 11:48 PM  7 years ago
S Crutchfield

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Arkadelphia,Ar. usa

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I have been using Amzoil Saber in the past with the Ozark Trail but Bill Meador talked me into switching over to Penzoil 100% synthetic marine oil.
I have read several posts where different engine modifiers are recommending the Penzoil. I intend on changing to it myself as soon as I use up the 2 quarts of amzoil. I think Amzoil is a great product but I feel that the modifiers know their products better than anyone, so I'll go with what they say.
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03-21-2012 01:10 AM  7 years ago
theriddick45

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United States

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I will stick with regular gas as well since I found a gas station that sell 89octane with out ethanol I have been using this gas and love it no worries of ethanol heck my generator is using it as well. Start on the second pull always and my Heli well I got a starter so one turn and it's on.Suzi Janis 800e & 700e 3blade both w/Ikon
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