Re: Not for Nuthin' But Close!
The combustion chamber design has some hemispherical properties, so more timing didn't seem to do any good. The fuel is 100 octane unleaded Sunoco 260GTX. The only fuel settings I can mess with are power enrichment (only active in closed loop), and injector pulsewidth multiplier vs manifold vacuum. For this reason I decided to run the car in open loop at all times and take control over the amount of fuel going in. With it in closed loop the ecu kept commanding the afr to be richer and richer and I couldn't get it under control. Attached are photos of both the injector pulswidth multiplier and the minimum spark table.
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