Increased MPG

SlowRollin · 09-28-2014, 10:47 AM

How about this.... HFC and CBE. Better flow but no change to the air/fuel mixture. Nice performance increase too? Of course, Fast Intentions seems like the winner for both parts.

Jordo! · 09-28-2014, 02:10 PM

Quote:

Originally Posted by SlowRollin

How about this.... HFC and CBE. Better flow but no change to the air/fuel mixture. Nice performance increase too? Of course, Fast Intentions seems like the winner for both parts.

Better flow (i.e., more air) + same mixture ratio = more power and poorer MPG. It will add fuel to maintain same AFR via fuel trims to target. The faster exhaust can escape, the more air can be sucked in, so same result whichever side you improve flow on.

On a related note, everyone will make less power and have better MPG in the summer and more power/worse MPG in the winter, all else being equal...

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09-28-2014, 10:47 AM	#1 (permalink)
SlowRollin Base Member Join Date: Sep 2014 Location: Orlando Posts: 46 Drives: 14' 370z Tour/Sp AT Rep Power: 12	How about this.... HFC and CBE. Better flow but no change to the air/fuel mixture. Nice performance increase too? Of course, Fast Intentions seems like the winner for both parts.