savannahvolvoguy Posted January 8, 2014 Report Share Posted January 8, 2014 Okay maybe this is me being a novice but it seems the car's ecu wouldn't really let the cold air provide a performance boost in turbo charged engines. On older p80 cars without a bps calculate boost pressure using the map sensor and the maf sensor. If the air is colder and more dense the maf would register more flow and the ecu would calculate that there is more boost than there really is. As such it'll dial back the turbo to maintain a level fuel trim. The idea that the intercooler works more effectively is also a negative side effect of the cold weather. Because the boost pressure is calculated pre turbo cooling the warm charge of air causes more space between the air molecules and thus lower pressure. For cars na cars a sense atmosphere is basically like running a small amount of boost all the time. And in that situation would present a performance increase. I'm sure I'm wrong. I'm just trying to figure out how the computer deals with cold air. Link to comment Share on other sites More sharing options...
mattsk8 Posted January 8, 2014 Report Share Posted January 8, 2014 I wouldn't know. The roads over here have been snow/ice covered for almost a week now so flooring it doesn't have much effect when the wheels spin as far as loading the turbo goes. Was -7 this morning, and its supposed to be 39 this Saturday. Glad I don't live next to a river. The plus to it being as cold as it has is that my car's been clean since last Friday. The salt has virtually no effect on the snow when its this cold so it doesn't bombard my car like it will this weekend when this all melts; what a gigantic mess that will be. Link to comment Share on other sites More sharing options...
mattsk8 Posted January 8, 2014 Report Share Posted January 8, 2014 Random fact: when dreaming, your brain can not produce new faces. So, every single person in your dream is someone you've seen before. The ones you don't recognize are usually people who you didn't meet, but still saw their face (someone in the car next to you, walking in the mall, etc.) Evidence to support that even in your wildest dreams, "all you touch and all you see is all your life will ever be". Link to comment Share on other sites More sharing options...
jschaefer7406 Posted January 8, 2014 Report Share Posted January 8, 2014 Evidence to support that even in your wildest dreams, "all you touch and all you see is all your life will ever be". See, Pink Floyd lyrics really DO apply to every day life :D Link to comment Share on other sites More sharing options...
blazen244 Posted January 11, 2014 Author Report Share Posted January 11, 2014 Thanks guys I think I'm going to be looking to upgrade the intercooler. Link to comment Share on other sites More sharing options...
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