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Performance Tuning Beginner and advanced tuning | Tools of the trade

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Unread 09-23-2014, 05:41 PM   #1
mrr23
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Default put car on dyno today

K/n fipk
Bbk headers
1.7 yella terra rockers
Hi flow cats
B&B x-pipe
stock mufflers with bypass
2.73 gears
Auto
Stock tune



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Unread 09-23-2014, 05:44 PM   #2
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Unread 09-23-2014, 05:53 PM   #3
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Nice and flat torque curve.......

But looks like some sort of stumble at around 5250 rpm.
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Unread 09-23-2014, 09:43 PM   #4
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we talked about that. figured could be ignition related.
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Unread 09-24-2014, 12:01 AM   #5
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Were any misfires logged?

Did AFR look OK? I've seen some VE tables that had pretty messed up cells in places.
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Unread 09-24-2014, 08:35 AM   #6
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first run

tredalign.com/vette/dyno/run1.mp4

run 2

tredalign.com/vette/dyno/run2.mp4

run 3

tredalign.com/vette/dyno/run3.mp4
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Unread 09-24-2014, 08:36 AM   #7
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I know geoff did have the hptuners hooked up but I didn't look at the log personally.
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Unread 09-24-2014, 10:45 AM   #8
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First rule of thumb is (or some tuners need to learn: SHOULD BE), stop tuning as soon as any mechanical or electronics problem is noted and don't resume until after it is fixed. I've seen far too many YouTube videos of engines blowing on a dyno to feel comfortable seeing someone not following that rule.
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Unread 09-24-2014, 10:52 AM   #9
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This was only baseline runs. No tuning.
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Unread 09-24-2014, 11:37 PM   #10
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OK, sorry, I am confused. You are running a stock tune with those mods that were done to your car?
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