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JETT 60lx

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Old 10-08-2008, 12:08 PM
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RANIERY
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Default JETT 60lx

hello bob, i'm getting a new 60 LX from a friend and i now it comes with the SS muffler. now if i put a 428 muffler, you think i can still run the 10x6 prop or should i stay at the 428 props. i fly 428 and q-40 so getting props it's not a problem and i understand that i might be loosing some reliablility. and can of rpm should i target for 19-20 or 20 over.
thanks ray coletto
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Old 10-08-2008, 12:24 PM
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bob27s
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Default RE: JETT 60lx

Hi Ray.....

Use the SS muffler to start with if you want to turn the 10x6, or something like a 9x8 or 9x9. Nice thing is this engine has the power to turn the props hard, and also has the torque to throttle very well with them

The 60LX will turn a 8.8x8.5 or 8.75x9W close to the same rpm as the 428 engine in that configuration. Keeps the torque, and you get the rpm. You may want to give that a try.

The SS/LX muffler runs best when propped to run between 17,500 to about 18,500 ground peak.

If you put the black muffler on, you might see a little extra if you use the racing props. One prop that works real well is taking the 8.8x9.25 and clipping it to about 8.25" diameter.

The black 428 muffler has to be propped to run at least 18,500 rpm on the ground. Ground peak around 19,000 works nice - back off at least 800 for flight.

I like to try and keep the engine down under 20K rpm most of the time.
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