I need to know the F355 valve lift. Other than this the Dyno Sim computer modeling is going well. If anybody has head flow numbers, or even port diameters, that would be a big help too. JM3 (yes I searched until the cows came home)
I was close with 9.5, but not with a very accurate method. I will share the results of my work when I am done. Basically, I have a program that will run simulations for cam timing, and suggest what is best based on requested parameters. Surprisingly, but also not a surprise, the stock timing is not bad. At first, one might think that the F355 motor has some compromised timing for emissions reasons, but it is not very much. Perhaps that is why the cars respond so well to altered exhaust. Some good custom headers and 70mm cats, not store-bought stuff, and a truly big (not just loud) muffler should really complement some cam tweaking. Thanks again, Jay
I have everything in place, and have run 1600 different cam timing scenarios (!) This took about 3 minutes (!!!!) I have learned a lot, and I am making corrections to the software to be as much like the known real world as possible, before I start moving any cam gears around. JM3
