Quote:
|
The point I am try to make is- it may not be necessary to touch the ignition timing at all if you are running the ideal a/f ratio for your particular combustion design.
|
I agree entirely. I believe that is one of the reason folks need to fool around with different water/alcohol ratios and injection rates. They are using those variables to arrive at an optimize point of peak combustion pressures, without changing the physical ignition advance.
That in turn leads to maximum mechanical effeciency and free power that would otherwise go out the tail pipe. One of the many ways WI allows both higher fuel economy and power production at the same time.
If you balance the water / alcohol ratio and water injection rate properly for your car, there should be no difference in ignition advance between the injected operation and when the engine is running without injection off boost.
Larry