OK, I got the stock motor tuned well with the twin turbo kit and 8 psi of boost. But I have a 402 turbo-specific engine sitting here so I installed it this weekend.
I have the 15000HZ patch in. As soon as I go WOT the HZ jump to 12700-13000 or so. The car doesn't shut off but acts like it has a rev limiter on it. The rpms in this case were about 4800 but it won't accelerate, just barely speeds up.
A/F is not completed yet, but at WOT was 12:1 or so. Boost was only hitting 9 psi as the engine won't accelerate at all.
With the 15000HZ patch you still have nothing past 12200 hz to tune with. Seems like too much of a coincidence that this is exactly where I am having problems.
Has anyone here tuned an LS2 with a maf past 12500 HZ or so? Is it possible that since I am exceeding the maf table it is limiting the engine?
Jody