Quote:
Paul wrote:
Where did this idea come from ? This is incorrect, in fact the opposite is true. Lean mixtures burn slower. One demonstration of this is the lean intake backfire, which many CIS 911 mechanics are familiar with. The cold running mixture is too lean, for a variety of reasons, and the mixture is still burning when the intake valve opens and the fuel in the intake ignites.
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This is contrary to what I have known for years. Without getting into a long and complicated discussion, can you provide proof of your claim. I think you misunderstand the entire concept, but I have also been wrong before. I am eagerly awaiting further explanation of your theory.
I am quite surprised that someone has not responded to your claims already, unless you are correct. On the CIS engines, I thought the mixture burned too fast and backfired into the intake before the valve closed. ????