Port timing 91FX Vs 91SxH
09-15-2003, 06:23 PM
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Port timing 91FX Vs 91SxH
Hiya.
Just a general question regarding the exhaust port timing of the above mentioned engines. I have measured the 91Fx @ 135 Degree (Exhaust port open). Was wondering what the differences with the Heli engine are?
Any help appreciated
Thanks
CP
Just a general question regarding the exhaust port timing of the above mentioned engines. I have measured the 91Fx @ 135 Degree (Exhaust port open). Was wondering what the differences with the Heli engine are?
Any help appreciated
Thanks
CP
