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Cobb AccessPort Subforum for discussion about AccessPort software and tuning.

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Old 04-24-2011, 07:02 PM   #1
iceman1680
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How's my log? (no pr0n)

First time logger here with my Cobb AP. Don't know much about this so help would be greatly appreciated.

Mods are Exedy Stage 1 clutch, Cobb Stage 1, Cobb intake, APT UICP. Did some research on what to log so let me know if I should add/subtract parameters. No AFR gauge. Temp was 79* and humidity was 49%. Elevation negligible. Relatively flat ground. Did one practice run before logging.

Boost doesn't look right and that knock is concerning me. The other numbers I have no idea about so please feel free to inform/educate me. Thanks in advance.
Attached Files
File Type: csv datalog8.csv (10.6 KB, 75 views)
File Type: csv datalog9.csv (7.7 KB, 53 views)
File Type: csv datalog10.csv (6.8 KB, 52 views)
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Cobb AP (Stage 1)
Cobb SF Intake
APT UICP
Exedy Stage 1 Clutch
Dunlop Direzza Sport Z1 Star Spec
TWM Performance Short Throw Shifter w/base, cable & transmission bushings

Last edited by iceman1680; 04-25-2011 at 01:14 AM.
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Old 04-27-2011, 03:05 AM   #2
iceman1680
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Anyone?
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Cobb AP (Stage 1)
Cobb SF Intake
APT UICP
Exedy Stage 1 Clutch
Dunlop Direzza Sport Z1 Star Spec
TWM Performance Short Throw Shifter w/base, cable & transmission bushings
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Old 04-27-2011, 03:18 AM   #3
SiliconTek
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What exactly about the boost is concerning you? Your knock is fine so long as it isn't repeatable, even then 1-2 counts isn't going to kill anything.
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Old 04-27-2011, 05:20 AM   #4
iceman1680
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Originally Posted by SiliconTek View Post
What exactly about the boost is concerning you? Your knock is fine so long as it isn't repeatable, even then 1-2 counts isn't going to kill anything.
Thanks for the reply. Boost fluctuates at peak...several times before finally tapering off. Shouldn't it peak early and slowly taper, with only one incline and one decline?
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Cobb AP (Stage 1)
Cobb SF Intake
APT UICP
Exedy Stage 1 Clutch
Dunlop Direzza Sport Z1 Star Spec
TWM Performance Short Throw Shifter w/base, cable & transmission bushings
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Old 04-27-2011, 05:30 AM   #5
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Originally Posted by iceman1680 View Post
Thanks for the reply. Boost fluctuates at peak...several times before finally tapering off. Shouldn't it peak early and slowly taper, with only one incline and one decline?
Not necessarily, some Evo X's do and some don't. With a proper tune that can be accounted for but on the OTS's it is pretty common. Go checkout Cobb's Dyno Database and look at other customers running the OTS maps. Some are pretty bad, take a look at the Evo X's in the Texas area, one in particular had pretty shitty boost curves until they got a protune the second time.
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2008 Evo X GSR
Self-Tuned
360hp/372tq

Quote:
Originally Posted by Eleanor Roosevelt, 1936
America is all about speed. Hot, nasty, badass speed.
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Old 04-29-2011, 01:23 AM   #6
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Boost is normal for OTS map. I have the same boost fluctuation and that could be corrected by a Pro tune just like silicontek said.

I am having the same knocks as yours I don't think its dangerous. I am not an expert maybe shadowcell and golden will post for their thoughs.

Let me know if you want to compare with my logs
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