KitCarlson, still fighting... Options

[McMark]

I'm still struggling to get my KitCarlson EMS running smoothly. It's a challenge when you're tuning FI and Ignition.

I read some threads on ShopTalk Forums where Jake recommends 12 degrees initial advance and 28 degrees full advance, all in at 3000 rpms.

So I dialed the ignition controls in to these figures. Checked the setting with a timing light and what's showing on the EMS monitor seems to match what's showing with the adjustable timing light. This is a wasted spark system and I've been ambiguously warned that a standard timing light "won't work" with a wasted spark system. This doesn't make sense to me though.

The first issue I need to deal with is that the car won't rev above 4000 rpms. When I first started setting this up I had the same issue and adding in advance cured the issue. I trust Jakes recommendation and so I'm looking for other sources of this issue.



Currently my logic tells me that if the system is too rich above 4000 rpms it would respond to more advance. Spark earlier gives the rich mixture more time to burn. I'll be playing around with this idea tomorrow, but I'd like to hear what'cha got to say.

[McMark]

Yes, fiid.

I accept your explanation James. So if the frequency is greater in a wasted spark then 10 degrees will be some short amount of time. The higher the frequency the shorter amount of time 10 degrees is. If you want 10 degrees off 1/2 the frequency, you would double the offset to 20 degrees. That is probably not written very clearly. But makes sense in my head.

I'm out to try it now...