Dangers of Running Rich, 3sgte owners Options

[jgreening]

Well, ten days into ownership of the 3sgte and I can safely confirm what everyone else has said over and over....these engines run very rich. I have read many posts about this and about the fact that Toyota made it this way to avoid lean conditions. However, I would imagine that running an overly rich condition cannot be good for the engine over time either. I am wondering whether for engine longevity and reliability purposes, us 3sgte owners should take action either through an S-AFC or stand alone to lean out the A/F ratio. Obviously, we can see some horsepower gains from doing so but I am particularly interested in responses dealing with engine life.

[Supersprynt]

No, that doesnt make any sense at all, LOL sorry I tried but I cant make a darn thing outta that.

Your pump doesnt divide anything up, its a pump. Its function is to pump fuel, thats it. Your ecu, using sensor like the AFM, O2 sensor, boost sensor etc..determines the a/f ratio. The pump only knows pump, pump more, pump less.

The reason for upgrading a pump is because at some point the pump becomes a bottleneck. Whereas, it physically cant pump the amount of fuel the engine demands, thats when your in danger of burning your cylinders and detonation.