FAST XFI 2.0 Question

John Nechiporchik · 05-02-2016, 01:08 PM

When changing the tune up mode from Speed Density to ALPHA N on the FAST XFI 2.0 system, what changes, besides the configuration parameters, are needed to facilitate the switch? The application is a 350 LT1 stock eliminator car. We are dyno testing the motor tomorrow so I would like to develop a base tune for Alpha N , open loop.
It is my understanding that the MAP sensor should be removed from the manifold and allowed to see atmosphere with the electrical connector attached and the hole in the manifold where sensor was removed should be plugged.
Is this the correct process?
Also, I have fuel and timing tables from another LT1 stocker that I can use as a starting point.
Thanks for your help.
John

05-02-2016, 01:08 PM	#1
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 315 Likes: 78 Liked 12 Times in 6 Posts	FAST XFI 2.0 Question When changing the tune up mode from Speed Density to ALPHA N on the FAST XFI 2.0 system, what changes, besides the configuration parameters, are needed to facilitate the switch? The application is a 350 LT1 stock eliminator car. We are dyno testing the motor tomorrow so I would like to develop a base tune for Alpha N , open loop. It is my understanding that the MAP sensor should be removed from the manifold and allowed to see atmosphere with the electrical connector attached and the hole in the manifold where sensor was removed should be plugged. Is this the correct process? Also, I have fuel and timing tables from another LT1 stocker that I can use as a starting point. Thanks for your help. John