Huh? Are you kidding?silvino said:Well, stock computer is just as good as saying 'untuned' because the car would be dangerously lean or detonating from too much timing.
Mike_Austin said:Huh? Are you kidding?
Big enough injectors and proper open loop tuning with a piggyback controller and it won't be lean. Enough octane and you wouldn't even see timing pulled on a stock ECU. The stock ECU is VERY good at avoiding detonation as long as you don't run insane boost for the octane. Its signal processing is lots better than an amplitutude based approach like the AEM.
Edit: Just took another look at the dyno graph and it says SAFC/VPC/G-Force. I've heard some G-Force ECUs have reduced timing but many (like mine) only have a raised rev limit and boost/speed cuts removed. It's a very smooth graph and certainly doesn't look like any detonation was occuring.