BarelyAWake
New Member
In my experience dual ignition is without a doubt beneficial, there's a pronounced difference with "crisper" ignition, far less fouling as well as a perceivable power gain. Generally speaking, the smaller the displacement - the more such effects are noticeable as it's a matter of scale.
Most small prop planes have dual ignition, while they're usually true redundant systems with dual mags as well (which ofc changes things a touch) as you can switch from one to the other or both - it's very obvious the difference between a single & duals, it'll pick up a coupla hundred RPMs at the least (it's under load too, even at idle as there's no "clutch" in a plane heh).
Granted - with dual mags, there's more power to the system - but I've also had a Mazda pickup w/dual but a single coil as well as my ultralight, which had a Rotax two stroke. When I got it the engine was "stock" in that it had single plugs - I shortly swapped out the head for duals. Unfortunately I couldn't convert it to a true redundant system complete with dual mags - nevertheless there was a very similar gain as I experienced with the far larger Cessna, I attributed this to the difference in scale, an alteration tends to have a larger impact the smaller the motor *shrug*
Do I think it's worth the fuss & bother w/our bikes? ... I guess that's up to you. I've not bothered w/mine as I don't really see a need for it, ya won't crash into the treeline on takeoff if ya foul a plug and the power gain is there - but not enough for me to rework a head to get it.
If they were a readily available aftermarket upgrade? Heck yea - I'd get one fer each of my rides lol
Most small prop planes have dual ignition, while they're usually true redundant systems with dual mags as well (which ofc changes things a touch) as you can switch from one to the other or both - it's very obvious the difference between a single & duals, it'll pick up a coupla hundred RPMs at the least (it's under load too, even at idle as there's no "clutch" in a plane heh).
Granted - with dual mags, there's more power to the system - but I've also had a Mazda pickup w/dual but a single coil as well as my ultralight, which had a Rotax two stroke. When I got it the engine was "stock" in that it had single plugs - I shortly swapped out the head for duals. Unfortunately I couldn't convert it to a true redundant system complete with dual mags - nevertheless there was a very similar gain as I experienced with the far larger Cessna, I attributed this to the difference in scale, an alteration tends to have a larger impact the smaller the motor *shrug*
Do I think it's worth the fuss & bother w/our bikes? ... I guess that's up to you. I've not bothered w/mine as I don't really see a need for it, ya won't crash into the treeline on takeoff if ya foul a plug and the power gain is there - but not enough for me to rework a head to get it.
If they were a readily available aftermarket upgrade? Heck yea - I'd get one fer each of my rides lol
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, I didn't think about that. But you did it because of space right? not performance. Basically on engines this low quality it isn't harmful, but it isn't helpful either, it just does nothing.
To answer taco's question it costs $40 plus shipping for the CDI and then around $20 or $25 for a coil. Hope that helps 