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Dont get me wrong... obviusly tuners know what they're doing, but there are reasons they're not making bigger numbers with all these after market parts. I would like to see how they determine fueling. From your graph (making less torque) I could almost guess your running leaner than optimal. Some tuners say max power is ALWAYS made at ARF of 12:1 or less.
12.1 if you're forced induction. Compared to an NA application, that's pretty rich. Optimal for our VQ engine is 12.5 - 12.8 to make the most amount of power.
12.1 if you're forced induction. Compared to an NA application, that's pretty rich. Optimal for our VQ engine is 12.5 - 12.8 to make the most amount of power.
Japtrix tuner also indicated the same numbers. He also said that is better to run rich in our engines. One more thing that he mentioned that got me heated was that a 370z with just exhaust and Stillen Gen 3 pushed 298hp. I was like daayyymm...why me?
Talk to Cobb and look at their map notes for stage 1 and 2. Make sure you check out the air fuel ratio graph and you'll see the dip at WOT.
I dont know where youve been but the problem is Cobb therefore there will be no talking to them. If their factory map yields more power than their stage two, than there is a problem dont you think
The true power of the A.P. is the custom tune . All G37 are not the same even if we have the same bolts ons. Sounds like downloaded maps are a waste of time ...
04-19-2009, 09:36 PM
I forgot to say that it was a different Dyno.
