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Request: Short log from a good or professional tune

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Old Feb 22, 2026 | 04:46 AM
  #1  
m1yeh's Avatar
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Default Request: Short log from a good or professional tune

Show off your tune!

If you think you’ve got a good or professional tune, please post a short log. I want to get a better understanding of what is normal and set realistic goals for tuning.

(I suspect I have unrealistic goals and am hoping this will help me put my laptop away)
Old Feb 22, 2026 | 10:38 AM
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From what? Turbo? N/A? Street? Dyno? Track?
Old Feb 22, 2026 | 02:21 PM
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Originally Posted by curly
From what? Turbo? N/A? Street? Dyno? Track?
I’m interested in how good can a street driving turbo tune get. I’m focused on AFR spikes on tip in, lift off, EAE, short pulsewidth, low loads, and boost control behavior during a pull.
Old Feb 23, 2026 | 10:27 AM
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Might be better for you to post your tune and a datalog, with a description of any issues you're having.

Logs don't tell the whole story. For instance, if there's an AFR spike on tip in or lift off but it can't be felt, it's not an issue.
Old Feb 23, 2026 | 10:56 PM
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So... My car is regarded as having a decent drivability tune by some folks. Don't know too many "pros" who can make a good drivability tune anymore unfortunately, don't put the laptop away if you are unsatisfied. I agree with curly. Also if you're boost/MAP line is not smooth, that is a sign of a minor boost leak, not an EBC issue.
Make sure you have sequential fuel working and timed in the reasonable range for tip in, but don't fuss if it feels good.
I also run 20% authority in my EGO control with medium steps and fast refresh, but try to set it up for 70F. Doesn't need to be perfect unless you are try to pass emissions, just needs to feel good, that is the most important thing.
But WTF do I know
Old Feb 24, 2026 | 05:10 AM
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You will not get a near perfect drivability without "leaning" on the rich side, or spend a significant amount of time fine tuning throttle tip in and low loads.
If this is a weekend car and gas mileage is not a top priority, just have it a bit richer than 14.7.
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