Need real world data concerning one Slick mag and one electronic ignition

[Bevan]

While I consider it to be very robust, I wouldn't consider the LSI to have "no" moving parts. It has one very important moving "assembly" bolted to the crankshaft behind the spinner. This whirls around at crankshaft speed with all it's vibrations in very close proximity to the engine case and the "pick up" module. Is it significant? Well, if you put a second pickup in there for reliability and the first one failed mechanically, that event may also take out the second. If there were truly no moving parts, this could not happen. Probably very robust as is and I've never heard of a catastophic failure but still wouldn't want a newb to believe that there are "no" moving parts. Please corrct me if I'm wrong.

Bevan

[dedgemon]

True the magnets are moving. Of course everything is moving in some reference frame!

Actually my point was that I chose not to use the crank sensor to drive both LSI's because there is a small possibility that something (thrown alternator belt for example) could take out both systems. By using the crank sensor for one and the hall effect for the other, and two batteries, I feel like its about as robust as I can make it.

Originally Posted by Bevan

While I consider it to be very robust, I wouldn't consider the LSI to have "no" moving parts. It has one very important moving "assembly" bolted to the crankshaft behind the spinner. This whirls around at crankshaft speed with all it's vibrations in very close proximity to the engine case and the "pick up" module. Is it significant? Well, if you put a second pickup in there for reliability and the first one failed mechanically, that event may also take out the second. If there were truly no moving parts, this could not happen. Probably very robust as is and I've never heard of a catastophic failure but still wouldn't want a newb to believe that there are "no" moving parts. Please corrct me if I'm wrong.

Bevan

[Snowflake]

Is there an EI solution that bolts on where the conventional mag goes, and uses the conventional mag's mechanism for driving the signal? ie. unbolt a mag, bolt on a block in it's place that does it electronically? Just wondering if there's something that doesn't need parts bolted on to the crankshaft up front. I'm a little concerned about failures up there too.

Rob

[N941WR]

Originally Posted by Snowflake

Is there an EI solution that bolts on where the conventional mag goes, and uses the conventional mag's mechanism for driving the signal? ie. unbolt a mag, bolt on a block in it's place that does it electronically? Just wondering if there's something that doesn't need parts bolted on to the crankshaft up front. I'm a little concerned about failures up there too.

Rob

Rob, yes there is, it is called the E & P-mags. Here's the link.

The E-mag is strictly electronic while the P-mag is the same unit but with a small generator built in so it is self powering should ship's power go away.

I'm running dual P-mags and think the world of them. In fact, I thought so highly of them that myself and a partner developed an in cockpit monitor/controller for them call the EICommander.

[Norman CYYJ]

There are absolutely no parts bolted to the crank shaft for the LSI system. The sensors are bolted to the front of the crank-case. There are small magnets mounted in holes in the flywheel they are the only moving parts.

[RV7ator]

Why would you want to put two different ignitions systems with the concommitant increased parts count (and maintenance time and cost for mags) on an engine? If you're squeemish about e-ignition reliability, why would you consider putting even one on in the first place? Is it that your desire for performance and fuel efficiency has you selling out your concerns about safety (as in eveyone has a price)?

The performance advantages of e- over mags is well known. I've substituted a mag for a P-mag at another's request and observed the performance deterioration. Mags bring nothing to the party.

I've run Lightspeeds and P-mags; I'd stick with P-mags. I've experienced mag failures. I won't use 'em again given the good e- options we now have.

John Siebold

[Guy Prevost]

Just another data point. I've got one Slick mag and one Lightspeed II+ ignition. The lightspeed has been perfect and carries most of the load. The Slick mag has had two ADs already.

[gasman]

One bendix and one LS hall effect. Great starts. 350 hours. No leaking seals, easy to time and has never been out of time. One moving part, the shaft that has the magnet that spins past the puck-up. This unit is soo easy to install......... a caveman could do it.