Question about the 3" MAF housing MOD
Mark / Byzan
I am still mulling over your "low budget tuning" modification you described some pages back. The thing I don't understand is how you can actually net more power from this alteration. The reason I'm puzzled is because I'd have thought the ECU, when "seeing" reduced airflow in the hacked MAF housing/sensor, would simply lower the fueling duty cycles to compensate. Naturally, the super-sized injectors would neutralize the reduced on-times but you're still left with a zero-sum result. The only way I can see for a significant boost in power would be through, well, boost. But my understanding is these cars' engines will not raise boost in response to under-par air flow. They simply lower fueling and stubbornly keep the boost curve identical. Can I get a bit of schooling on this?