???? They wouldn't work at all if they didn't adapt. That's why they use sensors for temp, pressure, speed, O2 input... that's all for the computer to deliver the proper timing and fuel charge for conditions. That's the whole basis for why computers in cars were developed! And you're absolutely right, if they can't adapt your vehicle would run only under a specific set of environmental conditions. Which is exactly why they do adapt.Originally Posted by mbeach
My point is for a little more investment in time and money, someone wanting performance rather than hoping another will drop a custom chip in our laps can have it, now. Grass Roots Motorsports has an excellent article this month about this very thing, including going over installation (couple hours) and tuning (couple more hours) on a street car.
Again, if custom ECU replacements didn't adapt they'd be worthless. All the works teams, racers and performance enthusiasts wouldn't be paying for and installing them. Adaptability is the most basic feature of an ECU. The ones I installed and tuned over ten years ago had features just now appearing on OEM ECU units.
addendum: After looking over the AEM unit mentioned in the previous post I can certainly say it's not advanced at all over the Haltech unit. The AEM unit is a daughterboard which is piggy-backed with a stock ECU. The Haltech unit is a complete replacement unit. The AEM unit is limited to OEM ECU's that it can work with, whereas the Haltech is only limited by various engine configurations, which is addressed by the various models they have. Additionally, the Haltech allows "in-flight" tuning where the AEM unit is a static download/upload arrangement. Apples to Oranges folks.
Reply With Quote