Unk Greg Posted November 7, 2011 Report Share Posted November 7, 2011 Posting here...have a two stroke thumper now and wondered about fuels available. It is a high compression two stroke...and what little fuel i had is gone. Previous owner said mixed premium gas, castor oil, and acetone to help with blending.Not looking for racing fuel per se....just like to keep this machine on it's regular diet.Any help out there re:Apology up front as to whether or not answered somewhere b4...i can' t bring up the search and keybd. to track down topic.Thanks. Quote Link to comment Share on other sites More sharing options...
BadTrainDriver Posted November 7, 2011 Report Share Posted November 7, 2011 E85? Quote Link to comment Share on other sites More sharing options...
imprez55 Posted November 7, 2011 Report Share Posted November 7, 2011 I used to make up some nitro mixtures for r/c stuff. I know I have a recipe sitting around a bum hdd somewhere around here if you still want it (based off sunoco pump gas). If you're looking for a learning experience and are going to play around with acetone mixtures, I have a list for you (I would suggest ~10% castor at all times to keep it 2-stroke friendly though). These are all just things I have heard are in various other racing fuels and things I have picked up from chemistry:avgasBenzeneHexanesHydrazine Methanol Methyl tert-butyl etherPentanePropylene Toluene Xyleneetc. (many organic solvents fit the bill because of their highly flammability and low vapor pressure)I'm not sure if you are trying to experiment on your own or what, but everything listed is very dangerous; not just for their flammability but things like benzene, toluene and xylene are carcinogens as well so don't let them touch you (fun fact: DMSO, another solvent, will readily be absorbed into the skin, and then you taste garlic). As for legitimate, tested 2-stroke recipes, I cannot help Quote Link to comment Share on other sites More sharing options...
Moto-Brian Posted November 7, 2011 Report Share Posted November 7, 2011 2 stroke thumper is a contradiction... 4 strokes are considered thumpers... On the note of fuels, why does it need such special fuel? Let us know what you have and we'd be better to answer...My opinion is that if it is a race built motor, you probably could stand to use something like VP C12 and mix with a QUALITY 2 stroke oil. There is a shit pile out there and we at KTM, use the Motorex 2 stroke oil and we probably put over 60 HARD hours on our 2 strokes and allow Joe Public to ride them in those hours. They come back looking great and (knock on wood), no engine failures... Now, they are not race built and have anything special, really. However, what the newest technology incorporates, is probably what some older "race" builds incorporate.I'd say it lies in a quality fuel and quality oil, but stay away from Dr. Frankenstein and mixing exotic chemicals into the fuel. Today's race fuels are really good and mostly used by top race teams and can be proven to have exactly what you need w/o having to mix in extra stuff that will really do you no benefit... Quote Link to comment Share on other sites More sharing options...
DoughnuT Posted November 7, 2011 Report Share Posted November 7, 2011 My buddies and I, have always ran cam and castor oil in our race engines. Have used VP "c16" and castor oil also, but didn't see enough gains out of it, to justify the cost, so we went back to cam. Mainly because it is easier to get here, with a race track close.These are engines built for racing "sprint karts," which run up to 550cc engines. We have used stroker, big bore, etc set ups, and still used the cam and castor oil. Depending on how much the engine has done to it though, will decide on what fuel you need. Quote Link to comment Share on other sites More sharing options...
Unk Greg Posted November 7, 2011 Author Report Share Posted November 7, 2011 Thanks all....got the bike and the fuel used was mixed up by previous owner along the lines of the opening....did not get the "formula". VP keeps coming up in conversations.Racing engine in bike....and looking to not change out fueling.Appreciate all the info. Great help. Quote Link to comment Share on other sites More sharing options...
Unk Greg Posted November 7, 2011 Author Report Share Posted November 7, 2011 Thanks guys pointed me in the right direction. Coupla stops got my mixology beakers and local dealer for VP....castor oil too. Good to go. Thanks again. Quote Link to comment Share on other sites More sharing options...
fuelit Posted November 8, 2011 Report Share Posted November 8, 2011 Hay Little! we are a Renegade Race Fuels dealer. They put out some great Moto Fuels. PM me and I can hook you up with some great fuel. Quote Link to comment Share on other sites More sharing options...
fireman_343 Posted November 8, 2011 Report Share Posted November 8, 2011 Where can I get the renegade race fuel at? I've heard good things about it, but can't find it anywhere Quote Link to comment Share on other sites More sharing options...
fuelit Posted November 8, 2011 Report Share Posted November 8, 2011 D'Amico Petroleum, Inc.380 Exchange DriveColumbus, Ohio 43228614-308-0021 Quote Link to comment Share on other sites More sharing options...
fireman_343 Posted November 8, 2011 Report Share Posted November 8, 2011 Thanks.. Will have to check into that for my little 125 road racer Quote Link to comment Share on other sites More sharing options...
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