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Old 10-10-2012, 02:42 PM   #42
Drift-Office
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Join Date: May 2012
Drives: AE86 / FRS / FC3S / GC8 / S14 / R32
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Quote:
Originally Posted by 2forme View Post
Were the dyno runs done with a closed hood on a warm car?

I'm assuming these cars had stock tunes...

In the end, I think the only reason it makes that much power is because of the open hood and much leaner AFR curve.

And how many runs did you do of each setup? I'm assuming you picked the best runs for both stock and each intake?
As stated, all testing was done on a bone stock FRS, and all runs were recorded with the hood open, fan(s) on. Cars were @ operating temp before each run. Each intake test had an average of 4 - 6 runs. I had quite a few more runs with the AiRaid one since I thought we had missed something...

Quote:
Originally Posted by jasper View Post
I have the injen and it was a noticeable difference but other people have been having problems with them mine works great so they might be installing them wrong.
I don't know how they could mess that up, but I'm with you - no issues with the Injen here...yet. I dare say those Injen numbers seem 'legit' since it did feel significantly better (though not as smooth) when I was driving it around the street and freeway.

Quote:
Originally Posted by Crossover Auto View Post
From the early testing, the ECU is highly adaptive to bolt on mods.
Don't you mean susceptible?

Quote:
Originally Posted by Crossover Auto View Post
MAF g/s airflow vs. load/rpm - how much air does each intake flow
Wideband AFR vs. load - how each affects the stock ECU tune
Short term and long term fuel trims changes - how the stock ECU tune is compensating for air flow changes
IAT(intake air temp) from idle to moving @ 40/70mph - how each reacts to air temperature which affects the ECU tune
That's great, but I leave that to the intake manufacturers ~ after all, they're judged by the end result - and based on their collective performance at the end of the dyno run...



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