Since this thread has actually remained a discussion and not turned into a bash fest (let's keep it that way too), I'll answer these questions that were posted earlier. After all, maybe there is still yet something that can be learned from higher ICP pressures. Perhaps there is a difference between split shots and singles in regards to how they repond to different ICP pressures. Or maybe I just want to satisfy my own curiosity.
FWIW, my truck has 123,000 miles on it, and I'm still running stock AD split shot injectors.
I have an ICP gauge in my truck. It's the 3rd gauge up on my 4-gauge pillar. It's tapped to the ICP sensor, and does not read from the OBD-II port.
No, it is exactly the same as stock. I can flip the switch between stock and any other position on my chip, and ICP at idle remains the same with an average of about 550 psi, at around an 8% duty cycle. Idle quality is also the same between each tune.
There's nothing but hills where I live, so it varies quite a bit. Driving easy and normal, my ICP pressure probably stays below 2200 psi even in my highest setting. However, it typically holds 2500-3000 psi when driving up a mountain pass at a 6-7% grade going about 65-75 mph (so 2000+ RPMs), even when empty. My tow setting maxes out at about 3600 psi at WOT. My daily driver tune will hold at a max of about 3700 psi, and my racing tune holds about 3800 psi at WOT. My stock setting reaches and holds right at 3000 psi at WOT.
I have not. My injectors have not been pulled, with the exception of the original LL injector. However, that was before I bought big oil. I've had my pumps for about 2 years now, and been running high ICP tuning for nearly that long.
Again, please keep this thread on track, as I tried to answer these questions posted in an honest manner, simply to keep discussion going. I'm interested to see how ICP varies depending on the injector type. I've been running the current tunes in my truck for about 2 years now, and regardless of the pro or anti stances for high ICP, so far it has been fine on my truck. To date, my truck still runs very smooth, has no cylinder contribution problems, or any indication at all of injector problems.