im not trying to be an ass here, but ive got not only going on 20 years experiance working with R/C fuel; but we mix our own at our club. i haven't had to buy 2-stroke R/C fuel in 3 years. here's my current stock, only the green cool-power is off the shelf fuel.
ive been through about 5 gallons since this past last june. that's a fuckload. R/C fuel is so expencive because only two factories in the US currently have the OK from the fed government to sell nitro methane
AFA what happens to cars when you run it. I can tell you from first-hand experiance its nothing good. my dad had built a bradley GTII kit car in the 70s with a worked over 1800cc vw engine in it. by the time i was in jr high the choke was shot and if it sat any length of time you had to spray starter fluid down the carb. well guess what? no started fluid and me and my buddy wanted to drive it around abit so out came a spray bottle full of 35% cox fuel.
first time it fired it threw a spark plug out the fucking head.
flash forward to 3 years ago. im playing with the auxillary injector controller output on my SMT-6 in my v6 lexus. were doing some messing around to determine how far you can go on various fuels in a gas engine on the highway (between bigminham & gadsden on I59) we had a 3 gallon supply, a pair of 550cc injectors @ around 80psi. once it had ran for a min you could run that engine peachy fine spraying diesel in it and it would gain 4mpg+ on the highway. (by the time we got passed the first 20 miles on the highway the bitch would run a good 2-3 minutes after cutting it off too) kerosene would run OK, but was fairly dirty and produced some carbon in the intake tract (likely atomization problems)
straight alcohol fuels sucked dick VS petroleum. R/C fuel wouldn't run worth a fucking shit (tried FAI (0%) 5% 10% 15%). overheating was common after the first few minutes so was bogging upon any kind of accelleration.
the first time we went out and tried to transition into using alot of R/C fuel the oil turned into sludge in the manifolds, it froze the EGR valve, clogged the throttle body vac switching passages, made a mess on the ACIS flap(varriable intake manifold) throttle blade & clogged the ISC. found oil in the AFMs bypass channel...
the conclusion we found was that it took minimal effort to get maximal gains by leaning the car via the o2 sensors until it was pulling timing out, then adding diesel back into it until it quit. no smoke, cruised like a champ and gained an easy couple of mpg. by the end of that & aero improvements we had the car doing no LESS than 31mpg on the highway and the combined mileage on it was nearly 30. (this on a car that never would do better than 18/24)
so im telling you via real experiance... if you put enough R/C fuel into an engine to do a shit, you're going to run into problems.
leave R/C fuel for engines that can burn it and have their oil feed from the fuel supply and run as a glow motor.
Author
Topic: My car: rx7. (Read 26172 times)