Re: air temp compensation on fuel maps question
Rang EMS today. I was right, for fuel map air temp compensation you need to increase fuel slightly as temp goes down (martin this is assuming that the A/F ratio is correct at 40 deg. In that instance you quote you would retard timing to prevent detonation and you would do this in the air temp compensation of the ignition map i.e decrease ign timing as air temp goes up. This is a good feature to use) cause the air is more dense with more oxygen, hence more fuel can go in. This temp comp thing is not really that important as it is really for very very fine tuning.
By the way Martin, the turbo setup that I'm doing is nearly ready, just waiting on the wastegates from turbonetics as they are completely out of stock of racegates. When finished will send pic.
Your EMS8860 will have a Autotune function soon. I'm actually getting the software to test but it should be available in the next few months. This is a huge step for a EMS in this price range. Stay tuned (pardon the pun)