4age 16v oem ecu rev limiter research

[ZDoman]

I know that U.S. AFM ae86s are revving only 7200, so some US guys buy ecu from europe to have revlimit at 7800..

I had some ecus which seemt to be revving to 8000, but I never believed too much in the stock rev-meter.

I have a friend who had about 4 hachies for rally 2000-2006. He got an ECU hacked by an electric man, which were revving until 9000. but he didn't find any advantage with it as it was a stock engine, so its lost..

Will anyone check the timing crystal inside your ecu? I have heard it several times that if you change the clock-crystal you can raise the revlimit. but it will change the ignition and fuelling aswell. I tried it once in the past, but didn't put in enaugh work and knowledge, the original crystal was working on 4MHz, and I had one from an old video tape recorder of 4,72 MHz, but the car didn't start. My electric friend told me something about that the steps in MHz raise must be multiply-able of each other (????) because it won't work. Also you need to change it to a specific amount only - I think you don't need too much - around 8200.. so go and find a good ecu planner electric man and then please share your result