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Old 02-16-2010, 02:15 PM   #1
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Default RC heli fuel in an off road?

Would this be a horrible mix? I know there are differences in oil mixtures and stuff. I have a lot of Curtis Youngblood Wildcat 30% that I use in my Raptor 90, but I just purchased a Losi XXL. The manual says I should run the Losi Nitrotane fuel for my engine warranty, but is this just marketing BS? Its kind of a pain to carry two kinds of fuel. What do you guys think?
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Old 02-16-2010, 02:33 PM   #2
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it will work, but you won't get peak performance out of the engine. In helis the high oil is used for cooling as well as lubrication, in cars it is just for lubrication.
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Old 02-16-2010, 02:55 PM   #3
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My dad once tried 30% heli fuel with high oil content on his RC10GT (this was about 3 years ago) and he would leave a massive smoke trail lol, it wasn't as fast as the nitro it's supposed to use, but it did work.
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Old 02-16-2010, 03:03 PM   #4
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if you know the exact % of synth / castor / nitro / methanol then you can add extra nitro or methanol to offset the extra oil. You should be shooting for around 12% oil, whatever % of nitro typically anywhere from 20% to 30% and the rest methanol.
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Old 02-16-2010, 03:42 PM   #5
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Yep,its gonna smoke bigtime!!! But thats about it
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Old 02-16-2010, 03:57 PM   #6
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Good for breaking in an engine do not expect much power from that fuel, but you won't damage anything.
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Old 02-16-2010, 04:51 PM   #7
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Quote:
Originally Posted by beastie050 View Post
Would this be a horrible mix? I know there are differences in oil mixtures and stuff. I have a lot of Curtis Youngblood Wildcat 30% that I use in my Raptor 90, but I just purchased a Losi XXL. The manual says I should run the Losi Nitrotane fuel for my engine warranty, but is this just marketing BS? Its kind of a pain to carry two kinds of fuel. What do you guys think?
Your heli fuel is roughly 22% oil content with all of that being synthetic. Car fuel is typically between 8 to 12% oil content with that being a mix of both castor and synthetic oil. At best the performance with the heli fuel is going to be bad, worst case scenario you might destroy your engine.
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Old 02-16-2010, 05:12 PM   #8
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Quote:
Originally Posted by Werks View Post
Your heli fuel is roughly 22% oil content with all of that being synthetic. Car fuel is typically between 8 to 12% oil content with that being a mix of both castor and synthetic oil. At best the performance with the heli fuel is going to be bad, worst case scenario you might destroy your engine.
i wont destroy the engine it just wont perform as well and will need a hotter plug due to the extra oil and it will smoke alot the internal wear on the motor will be less from all the oil lubricating everything so if your not racing and just backyard running it will be fine
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Old 02-16-2010, 05:27 PM   #9
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i wont destroy the engine it just wont perform as well and will need a hotter plug due to the extra oil and it will smoke alot the internal wear on the motor will be less from all the oil lubricating everything so if your not racing and just backyard running it will be fine
Right, and as I said the performance at best will be bad. Worst case scenario he will destroy his engine and for you to say that it wont is taking a shot in the dark because you have absolutely no idea how adept the person is at tuning. As I mentioned helli fuel is a 100% synthetic fuel, so worst case if the engine runs lean it is going to be much more likely that he suffers a catastrophic failure than if he was running a fuel with castor in in it which is exactly why I said "worst case". The fuel is already going to run hotter because of the higher oil content making this scenario all the more likely.
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