What battery for an Evolution 45GX
#1
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From: East Brewton,
AL
I''m getting ready to put this engine on a GP Yak 54. The manual calls for a 4.8 - 6V battery for the ignition system. Current draw is 500 mAh @ max RPM. My question is, what does a higher (or lower) voltage do for the engine performance, if any?
I am just getting into gassers so take it easy on me.
I am just getting into gassers so take it easy on me.

#2
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It does nothing for performance. The spark generator will charge up just the same, and timing curves also remain unchanged.
Over-voltage will kill the ignition
under-voltage will operate the low voltage cirquit, and limit rpm to about 3000 by retarding the ignition timing.
That is, if the evolution ignition resembles MVVS ignitions.
Over-voltage will kill the ignition
under-voltage will operate the low voltage cirquit, and limit rpm to about 3000 by retarding the ignition timing.
That is, if the evolution ignition resembles MVVS ignitions.
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From: East Brewton,
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ORIGINAL: preivers
It does nothing for performance. The spark generator will charge up just the same, and timing curves also remain unchanged.
Over-voltage will kill the ignition
under-voltage will operate the low voltage cirquit, and limit rpm to about 3000 by retarding the ignition timing.
That is, if the evolution ignition resembles MVVS ignitions.
It does nothing for performance. The spark generator will charge up just the same, and timing curves also remain unchanged.
Over-voltage will kill the ignition
under-voltage will operate the low voltage cirquit, and limit rpm to about 3000 by retarding the ignition timing.
That is, if the evolution ignition resembles MVVS ignitions.
Thanks. The 45 GX does exactly that. I'll probably go with the 4.8V for now just to be on the safe side.



