11-29-2017, 03:08 PM
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CC Member
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Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
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Not Ranked
CSX3170 EFI tuning
I had my FAST EFI tuned today by a very knowledgeable tuner (FAST Man EFI)
he converted me from Alpha-N to Speed density and did a great job. The car starts instantly, is razor sharp, and has a very stable idle. Power is over the moon now that fuel air ratios are correct. We tried loading the engine by shifting into second and third gears and applying increasing brake and throttle pressure it just slid the front tires and spun the rears. I will have to log the sensors at a long track to get the engine up to where it is really working and make sure F/A is correct. If any of you are contemplating going to EFI I highly recommend Holley because their self learning algorithm is so much faster and better than FAST. My engine builder told me alpha N was the only way I could go because my cam was so radical, boy was he wrong. Now I need to work on the handling and we will have a competitive car again.
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