I live in Vegas and installed the cam myself and started my tune from a stock file. Fran never tuned my car, but I?d love to see one of his tunes because he makes idle sound amazing with this cam, and mine sounds mild in comparison. I?m glad I read your post and revisited my EOIT tables because I realized that I made a mistake and have my EOIT target 50 degrees earlier than I would like it, so I will be changing that ASAP. I?ll explain my understanding of the process and you can go from there.
This is the way I set mine up, which may differ from person to person after talking to Ed. My injection Boundary table is set to the latest ?time? in degrees, that the engine will finish injecting fuel for any circumstance. I used IVC ? 30, which is also what your worksheet recommends. Based on your IVC at 598, it looks like a good Boundary would be 568 straight across that table.
Keep in mind that all three tables work together and my understanding of the formula is EOIT= Boundary ? (Normal RPM + Normal ECT). My error was setting 50 in the ECT cells at normal operating temps, which is moving my EOIT 50 degrees earlier than I want. I think I will be zeroing out my Normal ECT table at operating temps, and using only the Normal RPM table to make adjustments. The factory has lower ECT cells set higher and I will be leaving those stock for now.
Assuming you Zero the ECT table from 176-max, you will be using the Normal RPM to make the rest of your adjustments. The worksheet says from 3000-4500, your EOIT target should be IVO peak. For your cam 474 is your IVO peak, so set the 3000-MAX cells to 94. (568 ? 94 = 474)
Idle EOIT is where you need to know your pulse width, and calculate the time into degrees of rotation. The target here is for SOIT to be just after EVC. Your EVC is 374, but you can?t simply subtract 196 because that would set your EOIT and your entire injection event would happen with the exhaust valve open. Take a look at the ?Table? tab on your worksheet. At the top it has ?PW in crank degrees total? which varies with rpm. If you add each PW number to 374, that becomes your EOIT Target for that RPM. That is not the number that goes in the cell though. Subtract your EOIT target from 568 to calculate the cell input. Formula looks like: Cell = 568 ? (EVC+PW)
I used the PW calculation up to 2048 because that cell came out to 94 which was your target for 3000-4500 anyway. I wasn?t going to start the PW later in the cycle, to then make it earlier a few hundred RPM later. Also, i just roughly interpolated between cells since the table has many more columns than the worksheet.
I hope that all made sense, hopefully we both learned from it.I know I will be making changes after this closer look. I also took a screenshot of how I would set your car up based on the worksheet you provided. All of the numbers below 2048 in the Normal RPM table assume you put correct PW data in the worksheet.
-Kevin
EOIT Example.PNG