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Old 09-10-2008, 07:10 PM   #1 (permalink)
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flat spot when punched

Recently installed K-N cold air intake kit and all is well except when you floor it. It takes off right away and quickly falls on it face for a half second then catches up and away we go! Any tips clues suggestions?
We are dealing with a 2007 SS with the 5.3 of course.

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Old 09-22-2008, 08:30 PM   #2 (permalink)
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2007 Bogg

I am not sure how many miles you have on the Impala, It could be the fuel filter?
Check with your local tuner guy. Are you planning on doing a cat back exhaust,
you may want to tune after you do the exhaust and 160 Deg Stat.

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Old 09-23-2008, 06:29 AM   #3 (permalink)
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maybe something to do with the tune (DOD OR tcs), if youre spinning the wheels then it falls flat, then picksup up again, I'm willing to bet its the TCS/Torque Management, which can be tuned out.

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Old 09-28-2008, 06:58 PM   #4 (permalink)
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flatspot

Thanks for the tips guys!
Now that I think about it,I'm not sure if I had the traction control on or off as 04 Detroitls mentioned! The car only has 7300 miles on it so I can't believe it is a failure of other sorts. I don't believe it did this until I put on the air intake but it's not like I make a habit of seeing how much fuel and rubber I can burn every time I drive it. I'll experiment some more when the chance arises and see what results I get and let you guys know what's up.
Thanks again!

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Old 09-29-2008, 05:22 AM   #5 (permalink)
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IIRC the torque mgmt stays on even if TC is off (so you dont grenade your trans) there are aftermarket tuners/pcms (stay away from piggy back chips ie Jet) that will adjust your shift points, fuel maps, etc so you can get every ounce of fun out of it ;)

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Old 03-24-2009, 08:33 PM   #6 (permalink)
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Probablly the TC/electric pedal

Ive noticed something similar in my 2007 SS with 33000 miles... I think flooring it may cause some unexpected results due to the electric pedal and the logistics of the traction control. I wouldnt worry about it, just dont slam the pedal like me

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Old 03-25-2009, 03:14 PM   #7 (permalink)
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Sounds like you just need a good aftermarket tune OR a Dyno tune.Also you may want to run a lower temp thermostat,esp if you are getting a performance tune.

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