New RCGF Stinger 20cc RE and SE engines spark plugs

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10-04-2023, 07:42 AM

#26

kmeyers

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Quote:

Originally Posted by karolh

How did the 17x6 prop perform ?

That small of a prop should do a fine job of ruining the motor in short order ( IMHO ).

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10-04-2023, 08:19 AM

#27

karolh

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Quote:

Originally Posted by kmeyers

That small of a prop should do a fine job of ruining the motor in short order ( IMHO ).

Really !! Most everyone I know uses a 17x6 as the go to size prop.for 20cc gas engines.

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10-04-2023, 09:11 AM

#28

Truckracer

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Quote:

Originally Posted by karolh

Really !! Most everyone I know uses a 17x6 as the go to size prop.for 20cc gas engines.

Agree 100% on the 17-6 being the go to prop on the 20. I’ve tried other sizes, but overall nothing works as well as the 17–6.

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10-04-2023, 12:39 PM

#29

kmeyers

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Quote:

Originally Posted by RCPILOT99

Stinger 20 se performance 16x6 fiberglass prop idle 3500 peak 9400 pulls my seagull models ultimate bipe from 50 feet to 400 feet in 7 seconds two flights today came home and cleaned muffler and plug and added permatex will fly again wed hopefully things will stay together for a while so i can finally put the cowl on.

My bad, after I read this post I saw the pic of the twin 40, I thought that was the engine going to the 17 x 6.
I have 4 twenties and run 17 x 6 or 16 x 8 depending on the plane. I shoot for 8300 rpm.

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