why 30%
#5
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Join Date: Oct 2008
Location: Ocoee, FL
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RE: why 30%
Switched from 20% to 30% Cool Power for my YS140L one hot & humid summer day at a regional contest. Once the needles were set, I experienced huge power plus a reliable idle and it seemed glow plugs lasted 2 - 3 times longer.
Steve
Steve
#6
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RE: why 30%
YS engines are a high performance engine and IMO, any type of high performance engine will perform better, with better quality and higher octane fuel.
I run 30% nitro in all my engines. Only had 2 dead sticks with my YS 140/160's over a ten year period. Glow plugs lasted forever.
I'm now running 175cdi's and still using 30% nitro. They will idle for ages at 1700rpm and then throttle up without any problems.
Most of the flyers i know that are having problems with YS's, are using lower nitro fuel.
I'm positive that the reliable idle and running is helped greatly by using 30% nitro.
I run 30% nitro in all my engines. Only had 2 dead sticks with my YS 140/160's over a ten year period. Glow plugs lasted forever.
I'm now running 175cdi's and still using 30% nitro. They will idle for ages at 1700rpm and then throttle up without any problems.
Most of the flyers i know that are having problems with YS's, are using lower nitro fuel.
I'm positive that the reliable idle and running is helped greatly by using 30% nitro.
#7
Senior Member
RE: why 30%
ORIGINAL: DAVE KEPHART
Why do YS 160/170's run so much better on 30% ,or am I just mistaken.What fuel would work best?I still run Powermaster 20/20 is my YS 140 ,but its been my understanding that the bigger ys's thirst for more nitro
Why do YS 160/170's run so much better on 30% ,or am I just mistaken.What fuel would work best?I still run Powermaster 20/20 is my YS 140 ,but its been my understanding that the bigger ys's thirst for more nitro
I think the reason they do is fairly straightforward. Higher nitro is a higher density blend. It can carry more heat away from the engine because of the extra mass. Coupled closely is the fact that higher nitro introduces more oxygen in the combustion chamber and would run lean unless the needle is richened. So, you have higher density (more mass) and more fuel (also more mass), both of which remove heat better. The engine isrequiring a larger amountof fuel per charge and develops maximum HP while maintaining its cool. Bestof all worlds