doosh
RCTalk Basher
Hey guys i have been using 16% nitro in my truggy i am going to up the ante and finally run on 20% would i need to tune again? if so would i need to go richer or leaner?? thanks
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Fuel percentage tuning??
- Thread starter doosh
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OfnaHyper
RCTalk Qualifier
you will need to re tune. because the fuel has more nitro in it would prosume you will be able to lean it slightly. I tend to stick with the same % throughout the engines life. My savvy was run in on 25% and i've never changed it. Even the brand. Different brands contain different oil content. Its what the engine gets used to.
its like the wife makin you a cup of coffee with 2 sugars, then the next day makin one without sugar. You ain't gonna be happy.
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2revo1maxx
Hardcore RCTalk User
Richen the needle just a little bit. It's always good to look for a lower oil content while you're at it.
You can't just say to richen or lean it on a 4% nitro change. Put it in and tune according how it runs/engine temp.
2revo1maxx
Hardcore RCTalk User
Ok, if it's tuned good now, then it will likely need to be richened a little. It might be a little rich now, it might be a little lean now, I don't know.
I sure as hell wouldn't lean it like in post #2.
It's always a good idea to richen it a little when adding nitro content, I can say that.
I sure as hell wouldn't lean it like in post #2.
It's always a good idea to richen it a little when adding nitro content, I can say that.
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Start back at factory settings and tune for temp and performance. Never just richen or lean an engine because of a nitro % or fuel type change.
2revo1maxx
Hardcore RCTalk User
So if an engine was running fine on 10% and you switched to 30% you would just set it to factory specs and start there?
Going from 16% to 20% is not much of a jump, but as a general rule most people richen their hsn just a little bit when going to a high nitro.
Going from 16% to 20% is not much of a jump, but as a general rule most people richen their hsn just a little bit when going to a high nitro.
I never go back to factory when switching fuels. I just run it and tune according to what it needs.
2revo1maxx
Hardcore RCTalk User
Yeah me too, no hard feelings guys. I just stated what seems to be the most common advice given on the topic.
