Dual EI O/IO-320, fixed pitch numbers

[cjensen]

I'm not exactly sure where to put this since I am asking a question with regard to a 320, electronic ignition, and the propeller has something to do with it too...

Moderators...move anywhere appropriate...

My prop maker, Fred Felix, has asked me to see if I can find some numbers from people running DUAL ELECTRONIC IGNITION on your O/IO-320 with fixed pitch props. Most of the EI manufacturers claim about a 6% increase in HP with DUAL setups. Specifically, dual LSI Plasma II's or Pmags are the two I'm considering here.

Anyway, Fred asked for this type of info...

Chad,

Any information that includes speed and RPM matched for any given flight condition is useful. Most important is full throttle straight and level flight with a fair estimate of density altitude. This gives a good measure of the engine’s power versus the aircraft flat plate drag.

Regards,
Fred

We are trying to find the best numbers for pitching my prop correctly for 168-169hp out of the 320.

Please, 320, dual EI, and FP props only...

Thanks!