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7500 RPM, WOT, 14.xx afr, 35 degrees 0 knock!

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Old Oct 26, 2007, 03:02 PM
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7500 RPM, WOT, 14.xx afr, 35 degrees 0 knock!

logging software has down syndrome....




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Last edited by justboosted02; Oct 26, 2007 at 04:51 PM.
Old Oct 26, 2007, 03:23 PM
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Your logger isnot logging fast enough. It does not log everyparameter at the same speed. There is no way in hell you are running at 7500 rpm 14.xx afr with 35* of timing. What happens is you see that big jump in timing from 14* to 35* and the AFR richens up is when you let off the gas, the RPM and TPS do not log as fast there. You have some spots in there wher you have the same RPM for 4 lines in a row. The data does not always line up correctly. You need to log 2 byte load, you are logging ECU load which will not read higher than 160.
Old Oct 26, 2007, 03:38 PM
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you forgot to mention: 35 degrees, 0 knock, 21% TPS
your logger is just behind a bit with some values.

Last edited by mplspilot; Oct 26, 2007 at 03:40 PM.
Old Oct 26, 2007, 03:54 PM
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next time post in straight columns

what mods are on the car?
Old Oct 26, 2007, 04:06 PM
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I can't believe someone would actually look at this log and think it's accurate and complain about their "dangerously lean" tune. At least he didn't name the tuner, though I'm sure we can all guess who it is.

To the OP - It should be obvious that you're not running 35 degrees of timing, 13+ afrs and no knock at 7000 rpm. I figure it would be a very big clue for you that you only got those kinds of readings when you shifted.

Last edited by robertrinaustin; Oct 26, 2007 at 04:08 PM.
Old Oct 26, 2007, 04:51 PM
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Originally Posted by Evoryder
next time post in straight columns

what mods are on the car?
it was straight when i posted it
Old Oct 26, 2007, 04:54 PM
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Originally Posted by robertrinaustin
I can't believe someone would actually look at this log and think it's accurate and complain about their "dangerously lean" tune.

Im so sorry your highness..............

but the log says 7500rpm 100% TPS and 14 afr, i didnt know the software sample rate sucked so bad, makes me not trust any of the other data either
Old Oct 26, 2007, 05:21 PM
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Originally Posted by justboosted02
it was straight when i posted it
I did see it said 100% tps...what datalogger are you using? It's definitely something going on with the software...35degs advance is insane
Old Oct 26, 2007, 05:46 PM
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Originally Posted by Evoryder
I did see it said 100% tps...what datalogger are you using? It's definitely something going on with the software...35degs advance is insane
logworks 2, i was logging 10 channels, ill try it again with less channels and hopefully it will work better.

also i was logging on my buddies laptop which is EXTREMELY slow, so maybe using my own laptop will work better.
Old Oct 26, 2007, 06:51 PM
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make sure you have sufficient memory in the laptop(obviously) and also, log the neccessary windows...

TPS, LOAD, TIMING, A/F, IPW,, AIR FLOW, KNOCK SUM, O2 SENSOR ...

Log again and get back to us. 2500-7200rpm, and then run the gears...1,2,3,4..


One last thing. When posting logs, type" " ...input your logs from excel in between that. It will come out looking alot prettier and easier on the eyes. ONe of my logs for reference.

Code:
TPS	KS	RPM	A/F	BOOST
98.8	0	3531	12.2	12.1
100	0	3625	12.2	15
100	0	3750	12.2	17.2
100	0	3875	12	19.1
100	0	4000	11.9	19.6
100	0	4156	11.9	20.2
100	0	4250	11.8	20.3
100	0	4375	11.8	20.4
100	0	4500	11.8	20.6
100	0	4625	11.8	21.3
100	0	4718	11.8	21.4
100	0	4843	11.9	22
100	0	4968	11.7	21.4
100	0	5125	11.8	21.3
100	0	5250	11.8	21.3
100	0	5375	11.7	21.3
100	0	5500	11.8	21.2
100	0	5593	11.8	20.6
100	0	5718	11.9	19.8
100	0	5812	11.9	20
100	0	5937	11.9	20.2
100	0	6000	11.9	19.8
100	0	6093	11.9	20
100	0	6218	11.7	20.4
100	0	6343	11.8	20.3
100	0	6437	11.8	20.5
100	0	6531	11.9	20.2
100	0	6656	11.9	19.7
100	0	6718	11.9	19.1
Old Oct 26, 2007, 10:42 PM
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I can't view the log but if someone asked what would be the quickest way to burn up an engine I would say - drive stioch under load
Old Oct 27, 2007, 07:42 AM
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Got to remember that each channel is logged one after the other-serial and not in parallel-all at the same time...there will be a lag in the data. One just has to be careful and understand the nuances on the tools at hand.




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