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Discussion Starter · #1 ·
This may have been covered, but I can't find it. I have a flat spot about 3700 to 4300 RPM's. I have done the exhaust de-baffle, the intake mod. (air cleaners from Pep Boys,etc.), JSD, Cobra FI2000R. I am trying to get the flat spot to go away. The settings on the FI2000R are 2-3-4 at this time. I live at 4500 feet above sea level. Any thoughts?
 

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Discussion Starter · #2 ·
I could be wrong, but it feels like a lean mixture issue. It is only noticable at FULL throttle.
 

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I had a flat spot in about the same region and the PCIII took care of it for me...

Not sure if the FI200R can fix the flat spot or not as I dont know what the root cuase was. 

After Dyno tuning my A/F chart shows they added fuel before 4k and removed fuel from 4k to redline... Unfortunately the FI2000R cant do that.


:doorag:
 

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Discussion Starter · #5 ·
JUTAH, thanks for the reply. That's kind of what I was looking for. I may go with the pc111. At least now I have a clue. Thanks again!
 
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