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Why is my PE adder table look like this?

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Old Aug 27, 2004 | 04:40 PM
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From: Shelby Twp. Mich
Question Why is my PE adder table look like this?

Why does my tuner have my PE adder vs. Coolant temp look like this?This is my AFR table the 0.00's are from 140-212 degrees....

0.391 0.349 0.309 0.269 0.227 0.186 0.144 0.106 0.064 0.023 0 0 0 0 0 0.047 0.094 0.094 0.094

Scott
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Old Aug 27, 2004 | 04:59 PM
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Originally Posted by Pro Mouse
Why does my tuner have my PE adder vs. Coolant temp look like this?This is my AFR table the 0.00's are from 140-212 degrees....

0.391 0.349 0.309 0.269 0.227 0.186 0.144 0.106 0.064 0.023 0 0 0 0 0 0.047 0.094 0.094 0.094

Scott
looks similar to mine
0.391 0.349 0.309 0.269 0.227 0.186 0.144 0.106 0.064 0.023 0 0 0 0 0 0.047 0.094 0.094 0.094

exact as a matter of fact

140-212 is normal operating temp... looks like at values outside this range it adds more fuel ... the main one you should be concerned with is the PE vs RPM as that is the primary table used in PE mode
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Old Aug 27, 2004 | 05:02 PM
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Ok Horist lol they sure are,Well I guess it is good

Scott
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Old Aug 27, 2004 | 10:30 PM
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I guess it's doing cold enrichment for drivability
(cold just likes richer) and adding a little hot to
fight ping. About the "normal" operating region
it figures the main PE table is representing.
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Old Aug 27, 2004 | 10:52 PM
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From: Shelby Twp. Mich
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Ok Horist and everybody my PE V8 Mult vs.RPM looks like this,What do you think?
1.066 1.066 1.066 1.066 1.066 1.077 1.077 1.088 1.1 1.1 1.077 1.124 1.124 1.124 1.124 1.107 1.081 1.081 1.081
Thanks again for the Helpful info....
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Old Aug 27, 2004 | 10:57 PM
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That's way thinner than I use and I have my MAF
table nudged rich too. I am 1.14-1.15 on a rising
rate. You have a fat bulge in the middle and it
rolls on awfully abruptly. What's with that dip to
1.077? If I had that table I would be pinging like
mad. I think you want some wideband data.
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Old Aug 27, 2004 | 11:05 PM
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my PE vs RPM looks like
1.183 1.183 1.183 1.186 1.186 1.186 1.186 1.186 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131

but mine's a scaled stock table... yours appears to be a custom table...

My IFR table is also scaled by 165% since i'm running larger injectors (using the formulas out their I'm supposed to be like 195% but that was making me WAY too lean)

for setting your PE vs RPM table you're best off doing wot runs and watching your O2s (well you're best using a wideband, but if you don't have a wideband, then narrowband o2s will work) .. shoot for 930s to be safe... then lean out a little at a time... i wouldn't go below 910s

IFR tables are kinda setup and car specific though.... don't just copy and past a table in there... actually tune/dial it in....
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Old Aug 27, 2004 | 11:17 PM
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Originally Posted by horist
my PE vs RPM looks like
1.183 1.183 1.183 1.186 1.186 1.186 1.186 1.186 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131

but mine's a scaled stock table... yours appears to be a custom table...

My IFR table is also scaled by 165% since i'm running larger injectors (using the formulas out their I'm supposed to be like 195% but that was making me WAY too lean)

for setting your PE vs RPM table you're best off doing wot runs and watching your O2s (well you're best using a wideband, but if you don't have a wideband, then narrowband o2s will work) .. shoot for 930s to be safe... then lean out a little at a time... i wouldn't go below 910s

IFR tables are kinda setup and car specific though.... don't just copy and past a table in there... actually tune/dial it in....
Horist it was tuned on a Mustang Dyno by one of our sponsors MY AFR is 12.8 or 12.6 I cant remember?
I have an X1 cam,MTI s2 Heads,1 7/8 Kooks Headers,Fast 90 mm intake ,TPIS 90 mm tb,Bigger MAF composit MAF ends,and 2001 28# injectors ,I no longer have the 26's that came on the 99's.right now I am at .900-.910 mv's at wot and I do get up to 2.5 degrees of KR and sometimes 3 degree's,Hmmm to lean you think?
Scott

Last edited by Pro Mouse; Aug 27, 2004 at 11:26 PM.
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Old Aug 27, 2004 | 11:20 PM
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From: Shelby Twp. Mich
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Originally Posted by jimmyblue
That's way thinner than I use and I have my MAF
table nudged rich too. I am 1.14-1.15 on a rising
rate. You have a fat bulge in the middle and it
rolls on awfully abruptly. What's with that dip to
1.077? If I had that table I would be pinging like
mad. I think you want some wideband data.
Jimmy ,Horist is correct,it is a custom tune,and that dip your talking about may be why I get up to 3 degrees of KR?
Scott
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Old Aug 28, 2004 | 12:48 PM
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From: Shelby Twp. Mich
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Jimmyblue,I made the 1.077 number change to 1.1 so atleast its not a dip,do you think this is a good thing?
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Old Aug 30, 2004 | 09:22 AM
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if its knocking at WOT, then yeah you have something going on not right. What timing are you running?
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Old Aug 30, 2004 | 10:57 AM
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I think you should log and plot your O2 voltages
vs RPM, and your Fuel Air Multiplier vs RPM, and
see what these look like - visually, it will show
you whether there are any funny ups & downs
or a well behaved enrichment (actual and intended).
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Old Aug 30, 2004 | 05:25 PM
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From: Shelby Twp. Mich
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I have 29-30 total degrees of advance @ 6000-6400 range
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Old Aug 30, 2004 | 05:29 PM
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From: Shelby Twp. Mich
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Jimmyblue my o2 readings with autotap vary ,I am going to log tomorrow if I getta chance to.But at wot the last time I checked my mv's were ranging from 885-920 range....
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Old Aug 31, 2004 | 11:20 AM
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Try 26-28 degrees right before and above the pont where its knocking. See which way goes faster at the track
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Old Sep 1, 2004 | 11:37 AM
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1.131 in PE vs RPM is telling the computer to run 13.03 AFR

Originally Posted by horist
my PE vs RPM looks like
1.183 1.183 1.183 1.186 1.186 1.186 1.186 1.186 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131 1.131

but mine's a scaled stock table... yours appears to be a custom table...

My IFR table is also scaled by 165% since i'm running larger injectors (using the formulas out their I'm supposed to be like 195% but that was making me WAY too lean)

for setting your PE vs RPM table you're best off doing wot runs and watching your O2s (well you're best using a wideband, but if you don't have a wideband, then narrowband o2s will work) .. shoot for 930s to be safe... then lean out a little at a time... i wouldn't go below 910s

IFR tables are kinda setup and car specific though.... don't just copy and past a table in there... actually tune/dial it in....
Reply
Old Sep 1, 2004 | 04:24 PM
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Originally Posted by TEA Brent
1.131 in PE vs RPM is telling the computer to run 13.03 AFR
Correct me if 'm wrong, but that's only true if your ifr is accurate. If he scaled his ifr, than you can no longer accurately use that formula.
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