Subaru Tech All We'll Drive

Street Tune vs Dyno Tune

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Old 02-28-2009 | 03:38 PM
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Originally Posted by specVmatt
nope, tune is fine.

arent you getting tuned again because your tune is messed up?
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Old 02-28-2009 | 04:55 PM
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lol, its not my tune though. im pretty sure its because i was tuned with garbage in the car, i seafoamed the car and it took the junk out.. so now i need to be retuned. plus i went with a cai instead of the sri. the tune itself is fine.
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Old 02-28-2009 | 07:18 PM
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I learned how to tune. Granted its on Mitsubishis, but using the ECUFlash program is pretty easy once you figure it out. Also run a scanner to check for knocks. On my old Eclipse I sqeezed out about 28 FWHP and 30 ft-lb TQ. Only paid $75 for an hour on the dyno. I think I walked away pretty good. Got the AccessPort because its a little easier and I'm lazy lol.
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Old 02-28-2009 | 07:23 PM
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Tuning really isn't that difficult if you know what you're doing and what editing certain tables,will do to the engine's performance.
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Old 02-28-2009 | 07:29 PM
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Originally Posted by Matt M.
Tuning really isn't that difficult if you know what you're doing and what editing certain tables,will do to the engine's performance.

How do you learn just that... everything I seem to find seems to be super generalized... not if "you are experiencing x you should adjust y" and/or "if you want A then you should do B"... etc...
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Old 03-01-2009 | 01:21 PM
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tuning seems too hard for me.. id rather leave it up to someone that feels comfortable with it. I like the tune from 3gsucks, he does good work.
Old 03-02-2009 | 11:20 AM
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All tuning is mainly adjusting your ignition timing, and your A/F ratio. I practiced it by studying a stock map and reading forums on where these should run at. Then use a rom you get off the internet and practice using the program. Mess around a little. Then when you go to the dyno for the first time, tune the car by advancing the timing, or leaning the car out (usually just on top end) little by little, and you should see small gains on the dyno. Again, make sure you have a good scanning program for knocks and such. It's really easy to do. Just got to be patient.
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Old 03-02-2009 | 02:46 PM
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This^^

But, knowing what causes knock, general mechanical knowledge, fluent on volumetric efficiency is key. A lot young/novice tuners use numbers rather than the theory of what the tuning is doing..............if that makes any sense.

By no means is it "easy" or readily learned. Most tuning is learn by trial and error, hours of logging editing, and experience.

Well that's my perspective on it at least.
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Old 03-02-2009 | 03:24 PM
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^ +1... by the time you see the numbers, you've already got things happening. The trick is to learn what the changes are going to do before you actually see the numbers. In that way, you're not experimenting, but accurately predicting
Old 03-02-2009 | 03:54 PM
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all i get out of this is.. "pay an expert tuner to tune your correctly to make the most power in the most reliable way."
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