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Speed Density tuning

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Old 06-09-2009, 01:56 PM
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Here is the table so u can take a look at it. As u can see mine looks like it was'nt changed.
Old 06-09-2009, 02:01 PM
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spike mlp
Old 06-09-2009, 02:01 PM
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I have a gauge for that
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Originally Posted by amadeospike
Thanks for the info. I have one question. If the OL eq table is based on KPA and operating temperature would'nt it interfere with the PE table if it is set to something other than 1?
Yes.

To quote myself:

Originally Posted by Atomic
Go to the Open Loop Eq table, and put the cruise cells to 1.10. This makes the commanded AFR 14.7/1.1= 13.36 which is very safe for cruise. You need to be careful and follow whatever you have set for the PE enable (< pe enable is cruise). In the WOT cells, keep it at 1.0 so you can accurately adjust the VE table. If its not 1.0 then the PE multipler and the OL multipler combine, so if its 1.10 and your PE ratio is 1.15, then your ratio is going to be 11.62 (14.7/1.1*1.15), which is too rich.
Old 06-09-2009, 02:58 PM
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If you are running N/A and the MAF is not maxed out,running SD will not give you more performance,granted that is if the MAF table is scaled CORRECT using a wideband!!
Do not rely on your narrowbands to dial in your A/F (air fuel),if you want it done correct and accurate get a wideband.
Read the stickies on the hptuners forum and you will get the hang of it
Old 06-09-2009, 04:56 PM
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Originally Posted by Wheatley
If you are running N/A and the MAF is not maxed out,running SD will not give you more performance,granted that is if the MAF table is scaled CORRECT using a wideband!!
Do not rely on your narrowbands to dial in your A/F (air fuel),if you want it done correct and accurate get a wideband.
Read the stickies on the hptuners forum and you will get the hang of it
Thanks.

The reason i went to SD was because i was having backfires when i would spray using the MAF. My MAF had never been scaled though. I also heard that for big nitrous shots it's better to run OLSD to eliminate the risk of O2 or MAF malfunctions which may cause major problems. I want to try CLSD so that i can run stoich and my STFT.
Old 06-09-2009, 05:06 PM
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Your MAF isnt tuned and you are surprised you have problems?
Old 06-09-2009, 05:12 PM
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Thank for all ur help guys. Let me give it a try.
Old 06-09-2009, 05:22 PM
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Originally Posted by Atomic
Your MAF isnt tuned and you are surprised you have problems?
I'm not surprised at all. like i said i was'nt doing the tuning. I took over the tuning and i want to iron out some of the bugs. I appreciate the help. I'll post the tune and scans soon so you guys can see them.
Old 06-09-2009, 06:08 PM
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Originally Posted by amadeospike
Thank for all ur help guys. Let me give it a try.
Not a problem,good luck
Old 06-10-2009, 06:03 AM
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Originally Posted by amadeospike
. . . i was having backfires when i would spray using the MAF. . .
MAF not scaled>spray+backfires>lean=


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