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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › YP 30%, my experience
05-05-2005 02:11 AM  13 years agoPost 1
GM1

rrElite Veteran

Tallahassee, Florida US

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I got my Wildcat Youngblood Performance 30 fuel order in today, grabbed a case and headed for the field. I am a long time Wildcat 30 helimix flyer and was anxious to try some of the new fuel that is replacing the current 30LV fuel. For comparison, I ran a couple of tanks of the regular WC30 first to get a feel for what the motor was doing and then filled with the new YP30.
Model started easily and I went into hover. My YS 91 required that I lean the midrange 4-5 clicks from where I normally run but it sat well in hover, the motor was smooth, and there was little visible vibration. I went into idle up and made 4 or 5 easy full speed full power passes at 1950 rpm on the GV-1. Model pulled well, so well in fact that I was able to add a degree of top end pitch in all idle up conditions and still maintain 1950 rpm. The motor just kept pulling but the motor temps were almost exactly the same as the current WC30%. I leaned the high speed needle also and made several full power climbouts and full speed passes to get the mix optimized. Power is very good. I transitioned back to a hover after the high speed passes and the model dropped into a 1450 rpm hover where the motor just droned and was extremely smooth. FAI guys love this sound, the model just sits and purrs. The motor is smooth enough that I could add about 10% gyro gain in hover and probably will in idleup also but did not have time to actually try it.
The only negative I could find in the YP 30's performance was that it smokes more than the standard WC30% helimix but even then the smoke was not the eye burning type that I have experienced with some other brands. Since I have only run a gallon, I cannot yet comment on motor and bearing life but I would expect that to be nominal. I flew the fuel in two identical models and experienced similar results with both. Needles were pretty broad and the motors were easy to tune. When you get the mixture correct, the acceleration and top end power are pretty amazing.
I heard Curtis had done his homework on this stuff and from my limited experience, it sure looks that way.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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05-05-2005 02:20 AM  13 years agoPost 2
Kinger

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Granville, OH

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Looking forward to giving this new fuel a try after I burn through my 7 cases of WC30% HV

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05-05-2005 07:20 PM  13 years agoPost 3
GM1

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Tallahassee, Florida US

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@#$%^&!!!
I was hoping to get out today for more testing but it's raining cats and dogs so looks like the weekend before I'll get to try some more YP30%.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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05-13-2005 12:31 PM  13 years agoPost 4
GM1

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Tallahassee, Florida US

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more time
I have now run about 3 gallons of YP 30% through two models. Motors seem to like it a lot. I am definitely getting a lot of power as I have had to add about a degree of top end pitch to each model . Hover is very smooth which has allowed me to turn the gyro gain up about 10% in hover. Models seem very happy.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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05-15-2005 02:57 AM  13 years agoPost 5
bobbyhill4x4

rrApprentice

Watertown NY

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GM1

Thanks for the report, I'm currently running the LV30 which according to the label has the same contents. What is different about the fuel that make YP30 so much better if all content of WC fuel is posted on the label?

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05-15-2005 03:43 AM  13 years agoPost 6
GM1

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Tallahassee, Florida US

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YP
The formula for the fuel was developed and tested by Curtis. I know the lubrication package is proprietary and has been extensively tested but as to what is in it, I can't say because I have no idea except the fuel is 23% synthetic oil and 30% nitro. I finished my first case today with good results. My motor is as smooth as I have ever had and is making excellent power so I can just concentrate on flying well. After flying the regular 30% WC, it is taking a little time to learn how to needle this fuel as it smokes more than I am used to and I tend to want to lean it out but I am doing OK and have toasted only one plug so far.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.

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05-15-2005 09:38 PM  13 years agoPost 7
bobbyhill4x4

rrApprentice

Watertown NY

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GM1, Thanks again

I will pickup a gallon this week and see for myself what everyone is talking about. I hope it will help with some of the tuning issues that I have with my OS50.

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05-16-2005 12:10 AM  13 years agoPost 8
rckrzy1

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Hurst Texas

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Ok I tried a few tanks today of the CY30%.

Let me start with I'm 20% nitro guy, and was flying 20% WC so my findings are based on such.

First try was my TT50 in a raptor, stock muffler, always runs on the hot
side, about 240F and this is not lean at all. Opened needles a tad, found a bit more smoke, but not too bad, flew around, found temps
about 210F , ended up with high end back to starting point and low end
about 1/8 turn richer. Second tank I tried to over load it but she pulled
right through and had quite a bit more power and yet running 200-210 now. I'm happy, raptors happy.

Also noted very broad needle settings on the TT50, before it was 3 clicks each side to rich or lean, now there is atleast 5.

Next came my YS91 powered Pmax. Long story short, hover,high needles no adjustments and low end needed 1/4 richer. For sure
more smoke, not as bad as magnum or coolpower but more than
I like, But the power increase was alot, I found I could not bog it
all, I took my max pitch form 95% to 100% (9.5 to 10.5) and still I
could not bog it, I need to adjust Pmax for more positive mechanical
throw, but as is 10.5 degrees 1800 rpm 720 RT's the climbout
was amazing. If not of the extra smoke I'd be in love. I will see
how much more pitch I can get out of this and decide whether
to stay with this 30%.

I plan to keep using the CY30% in my raptor, and plan to try
it with a CY MP next week for added performance.



Wildcat Fuels

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