Hi All, I'm wondering what the ideal cracking pressures should be for AAZ injectors with Kerma's GTD nozzles. I'm running them in a fresh AAZ 16psi of boost, stock pump, intercooler, 2 1/2 inch exhaust, all in a Syncro Double Cab. Any help is appreciated. Jeff.
As I understand it, AAZ injectors are dual stage (e.g. smaller "pilot" injection, followed by larger main injection). I would suggest leaving them at the stock main cracking pressure which I think is 155 bar like the single stage TD injectors. Going any higher starts to affect pump timing.