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Choppy power band on stage 1 :/

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Old Jan 2, 2011 | 04:01 PM
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From: Tarmac WI
Choppy power band on stage 1 :/

After driving around with the Cobb Ap, ETS intake, and Buschur upper pipe im a little dissapointed in the way the power feels, although I didnt expect much in the way of gains from these mods, I expected a little more than what I got i suppose. I mean stage 1 is rated at a 19% increase in power, thats almost 55hp granted only 40 will probably be seen at the wheels.. anyways, When I accelerate there is a drop at about 4-5k and from that point it feels wavy for lack of better words, this is especially noticable in 3 and 4th where you move throught the band a bit slower. Anyone else have this issue?? BTW Im runnig the Cobb SF Stage 1 map as the ets and SF systems use a very similar set up.
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Old Jan 2, 2011 | 09:32 PM
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It'd help everyone out if you'd upload a log replicating whatever you're having problems with. Little difficult to diagnose your problem with the amount of info you have given.
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Old Jan 3, 2011 | 09:03 AM
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Choppy sounds like a too-rich misfire, wavy sounds like its shooting above and below the boost target because it is over correcting too much.

Are there any pops / booms when this happens? Do you see any knock?

Monitor AFR, knock, and boost while it happens and report back.
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Old Jan 4, 2011 | 06:30 PM
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From: Tarmac WI
Originally Posted by fostytou
Choppy sounds like a too-rich misfire, wavy sounds like its shooting above and below the boost target because it is over correcting too much.

Are there any pops / booms when this happens? Do you see any knock?

Monitor AFR, knock, and boost while it happens and report back.
Hey Man, hows it going?

Hmm will do, ill see if I can monitor AFR with the AP, but I dont believe I saw it on the monitor screen.

It doesnt pop or boom and there is not knock that is noticable
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Old Jan 5, 2011 | 06:53 PM
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From: Tarmac WI
Here is the Datalog of a 3rd gear pull, peak boost was logged at 21.8
this is the Stage 1 93 Cobb SF intake map, and I am running the flash, buschur uicp, and ets intake.

Hope this helps, 21.8 seems a bit low, stock is 22 isnt it?

let me know what else I can do to help
-J
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Old Jan 5, 2011 | 09:53 PM
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You never attached anything...
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Old Jan 6, 2011 | 04:40 PM
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From: Tarmac WI
Sorry didnt have it zipped the first time.
Attached Files
File Type: zip
datalog2.zip (4.5 KB, 0 views)
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