Mazda Injector numbers for Cobb AP

dimanche 22 mars 2015

Will anyone share their Injector size numbers for the Cobb?



I see the stock red is listed as 369 in the AP when on a P-1 position.



I see the stock yellow is listed as 476 in the AP when on a P-2 or Aux position.





From the Cobb math, I see:



The reds flow 290 on P1

The yellows flow 390 on P2/3

What do the blues flow? (best guess is 440)



*******************from Cobb Help file************************

To calculate a starting value for a different injector size than stock, use the following formula:

New Size Value = (New Injector Size / Original Injector Size) * Original Size Value.



*******************from Cobb Help file************************



For example, let’s say you are replacing your factory RX-8 Bank 1 injector set (290cc) for after market (or other stock sizes) 390cc injectors.



The formula would look like:

New Size Value = (390cc / 290cc) * 369;

New Size Value = 496



In light of the stock yellows on a P2 or P-3/Aux using 476 for an AP inj size I wonder if I should go with the 476 like the stock P2 size when the yellow is on P-1.





For the blues in P2/3:

New Size Value = (New Injector Size / Original Injector Size) * Original Size Value.



New Size Value = (440 / 390) * 476

New Size Value = 537



So, go with these values and scale the MAF to these injector sizes?




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