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02-09-2006 | 06:06 PM

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Antique

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From: Somewhere, DC

RE: What gas engine to use

I don't need hubs, I make my own...Horizon wants about $80..

That's just for the hub...the bolt and washer are just as ridiculous...

Prop test...G62...Altitude 6800 feet...Temp 55 degrees...Fuel 32-1 oil, 87 octane gas..TNC tach..No muffler..My ignition, timimg at 28 degrees BTDC..Tried more, no difference...
22-10 Top flite 6900
24-10 Zinger 6000
24-8 PK 6000
22-6-10 Zinger 7200
22-10 Zinger 6700
22-10 MSC 6300
22-8 Menz S 7300
23-10 MSC 6000
22-10 DynaThrust 7500
Readings when I lived in Phoenix at about 900 feet altitude were about 400 rpm more on the Zinger 22-10.
I have seen slightly higher and lower readings from different engines...

Update...Different G62, Zinger 22-10, 7000 rpm...Same conditions as yesterday..I would expect all the other numbers to be 300 higher, based on this one...This engine must have had more time on it and is looser..

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