the Official "NA Tuning" thread
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From: formerly versionJDM
Originally Posted by FF2Skip,Jan 23 2007, 03:49 PM
I'm still trying to get used to seeing "lean" A/F's from my sc'er point of view. Any thoughts on what a stroked motor would like to see? I hope to get a little datalogging in Thursday(1052U).
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Originally Posted by HvRRZ,Jan 23 2007, 01:05 PM
tune! badly. You should be making more power then that. May be something wrong with the motor?
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From: VA/MD
Originally Posted by wildcardtrd,Jan 23 2007, 08:06 AM
yea, so the engine doesnt have to work as hard to spin the drivetrain, so the power "freed up" translates directly to the ground...
...at least that's how it makes sense in my mind...
...at least that's how it makes sense in my mind...
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Originally Posted by versionJDM,Jan 23 2007, 02:02 PM
you're thinking like a Turbo owner. the more you lean out an engine the more power it will make, to a certain point, and then BOOM! s2k's like to run leaner than average. for example, my WOT AFR is 13.9:1. my car loves it there. now on a boost application that kinda AFR would like pistons on the pavement, but on the s2k it makes the car ufcking scream.
but from my experience I have seen Dozens of factory fresh trucks/ SUVs, which dont seem to run to much timing, run over 14:1 all day long, the chevy trailblazer runs over 15:1 throughout the entire powerband.
just food for thought.
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From: formerly versionJDM
Originally Posted by BlownAP,Jan 23 2007, 05:29 PM
lol that is sooo funny......... from a tuning stand point he may be right. 13.5+ a/f's is kinda a no no.
but from my experience I have seen Dozens of factory fresh trucks/ SUVs, which dont seem to run to much timing, run over 14:1 all day long, the chevy trailblazer runs over 15:1 throughout the entire powerband.
just food for thought.
but from my experience I have seen Dozens of factory fresh trucks/ SUVs, which dont seem to run to much timing, run over 14:1 all day long, the chevy trailblazer runs over 15:1 throughout the entire powerband.
just food for thought.
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From: Los Angeles, CA
Originally Posted by burak,Jan 23 2007, 06:00 PM
what could be wrong? My car only has 36000 miles on it, I changed the oil every 3000 miles. I know the previous owner did take car of the car.
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Originally Posted by HvRRZ,Jan 23 2007, 06:54 PM
not sure exactly ...only you would now if there was anything wrong. The power curve looks smooth and healthy, but your not making good power for the mods you have done. I'd suspect it could be do to your tune. Most with similar mods are around 215whp.
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Originally Posted by burak,Jan 23 2007, 08:28 PM
You are right , that's exactly what i was expecting to see. I was disappointed with the number that my car put out but I am happy with the performance.
no doubt I'm sure the car feels a lot freeir with those mods.
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From: Lewisville, TX
Originally Posted by burak,Jan 23 2007, 10:28 PM
I was disappointed with the number that my car put out but I am happy with the performance.