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#Post#: 25062--------------------------------------------------
EVO 7-77 Seven Cylinder Radial
By: 660magnum Date: October 14, 2013, 12:29 am
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He's running it on Methanol/Synthetic lubricant/Nitro but the
engine will also run on 20:1 gasoline and synthetic lubricant.
It has a CD ignition with a single 28 degrees BTC sensor with a
PIC chip to program the retard for start and the timed sequence
for the other six cylinders besides the master cylinder. It uses
seven coils and high voltage lines and 1/4" X 32 spark plugs.
The primary voltage is set up to be 12V on LiPo batteries. This
guy makes these ignitions. CH Ignitions
HTML http://ch-ignitions.com/
77cc 6000 rpm looked like a 26 X 10 prop. Looks like a very
reliable idle at 1500 but he had it going at 1000. He says it
runs 5500 on gasoline with that prop.
HTML https://www.dropbox.com/s/qniseyrprig6hwi/Evo%207-77%20Glow%20.mp4<br
/>
#Post#: 29895--------------------------------------------------
Re: EVO 7-77 Seven Cylinder Radial
By: 3000 FPS Date: December 20, 2013, 8:37 pm
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Wow. That is really something. Makes those chainsaw engines
look pretty simplistic.
#Post#: 29926--------------------------------------------------
Re: EVO 7-77 Seven Cylinder Radial
By: KilliansRedLeo Date: December 21, 2013, 12:57 pm
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I'd say! Amazes me that people just go out and build these
things! And your right makes chainsaw engines look crude by
comparison!
#Post#: 29928--------------------------------------------------
Re: EVO 7-77 Seven Cylinder Radial
By: Chainsawrepair Date: December 21, 2013, 1:21 pm
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:o :o
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