No, what I meant is that IF your air meter is working properly that even with all the bolt on mods, the car should be able to adjust the fuel so that you do not run lean. In other words, the stock fuel system can keep up with the amount of power you will make with all of those mods. If you relocate or your air meter is NOT reading accurately, you could end up with a lean condition.
I wasn't really talking about the "power" itself rather the power compared to what the ECU can adjust to.
Basically, if you have a G3, you're better off getting the car on the dyno and obtaining your a/f ratios. OR...if you have the software, watch the timing during a pull. If you see timing start to decrease through the run, that means your car is going lean and the ECU is pulling timing to compensate...NOT good!
Nice numbers btw!
Quote:
Originally Posted by semtex
I disagree.
I started off with a CBE and HFC. I never dyno'd before this, only after, so my baseline is with the CBE and HFC.
Baseline: Max = 291.7whp. My only mods were the Stillen cat-back exhaust and the Berk HFCs.
Then I went and added the G3 intakes.
After: Max = 306.4whp.
Net gain = 14.7whp.
Then I added headers.
This first graph shows HP and A/F:
This one shows torque:
So I should be running really lean now, right? And when I get a tune and get my AFR adjusted, my HP should go back down as a result of the AFR correction, right? But it doesn't. And keep in mind that AFR correction is pretty much the only thing a tune is good for right now, because timing adjustments just get bounced back, so it's not like we're offsetting HP loss via AFR correction with HP gain via timing advancement.
Sharif at Forged Performance did my tune, and he made sure the AFR is where it ought to be.
Final number: 318.1
Unless I'm missing something, it does not appear that my gains from the G3 intake were at any point negated by AFR correction, which leads me to conclude that the gain I got from the G3 was legit, and not simply because it caused my engine to run lean. |
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Chris
Current: 2014 WRX Stage I + SPT / 2013 Hayabusa 202HP
Former:09 370Z 7-AT PW/Ark Type 2 exhaust/Evo R lip/TSW Nurburgring carbon