Ok I gotta ask FP LA ?
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RE: Ok I gotta ask FP LA ?
It's like auto manufacturers, i.e. Mercury Grand Marquis GS or LS etc. Sounds good. The FP is OS's older version of their bushing engines. Their newer versions are called LA. I have never heard of any specific meaning for the letters other than to designate families of engines.
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RE: Ok I gotta ask FP LA ?
I second that.
I was talking to a tech at hobby services (warranty dept for OS etc) I asked that very question he basicaly said almost word for word what Jim stated.
I was talking to a tech at hobby services (warranty dept for OS etc) I asked that very question he basicaly said almost word for word what Jim stated.
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RE: Ok I gotta ask FP LA ?
While the letters are not important, what IS important is whether the engine has a bushing or ball bearings. For instance, on the OS 40 FP and 40 LA, the crankshaft is supported by a bushing. On the more expensive engines, such as 40 FX or the new AX series, the crankshaft is supported by ball bearings. While these engines are a bit more expensive, they are considerably more powerful.
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RE: Ok I gotta ask FP LA ?
They may both contribute. I don't know for sure that the porting IS different. After all, if you found one type of porting that worked better than another, wouldn't you use that porting in all of your engines? I used to build Machines for the automation industry, and I can tell you first hand that the machines with bearings felt 10 times smoother than their bushed counterparts.
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RE: Ok I gotta ask FP LA ?
ORIGINAL: MinnFlyer
. . . wouldn't you use that porting in all of your engines?
. . . wouldn't you use that porting in all of your engines?