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Discussion Starter · #1 ·
car: 08.5 MS3

I have included a couple of logs (From AP).
Running Stage1 stock vehicle map v1.03.
Stage1 for Stock Vehicles. 93 octane fuel.

I know..they are not graphed but deal with it.

I am running 93 octane fuel.

Also, what the difference between actual & equiv A/F ratio.

The car feels damn quick but kind of nervous about that lean spot when I hit boost.

Considering running the stage 1 stock vehicle map for 91 octane to see if it richens up the mixture.

Logs 2 & 3 were WOT..not sure what gear.
Log 4 is partial throttle not sure what gear.

http://www.mazdaspeed forums.org/forum/attachments/cobb-access-port/2777d1232577948-ap-logs-questions-datalog2.xls
http://www.mazdaspeed forums.org/forum/attachments/cobb-access-port/2778d1232577948-ap-logs-questions-datalog3.xls
http://www.mazdaspeed forums.org/forum/attachments/cobb-access-port/2779d1232577948-ap-logs-questions-datalog4.xls

*just remove the space between mazdaspeed & forums in the link.

-C
 

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I was running the Stage 1 stock 91 octane V1.03 for the last week and was getting huge boost spikes in the 22 psi range. Target is 17.5 psi!! I switched back to the installed stock map...
 

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[quote author=dread link=topic=134100.msg2882337#msg2882337 date=1232633976]
I posted this on the other forum as well. this is your data. More people will look at it if its graphed


[/quote]

acidbbg,

Based on this graph, what is your question? Fuel pressure, knock retard, boost, and air/fuel ratio look on target for a stock setting.

Fuel Pressure: above 1600psi, GREAT
Boost: spikes around 17psi, levels off to 15psi, OK FOR STOCK
Knock Retard: never above 1.5, GREAT
Air/Fuel Ratio: around 12~12.5, GREAT
 

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Discussion Starter · #5 ·
My concern was as soon as I hit boost...I am seeing a lean a/f.

in the datalog2...

At 2415 rpm I see 3.48 boost with a/f 13.67
at 2844 rpm i see 17.4 boost with a/f 12.49

in datalog3

at 2589 rpm i see 4.5 boost with a/f 14.11
at 2659 i see 11.31 boost with a/f 13.52

in datalog4
at 2590 rpm i see 3.92 boost with a/f 15.88
at 2659rpm i see 11.6 boost with a/f 13.52
 

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That is why you should not load up your car below 3000k rpm. That being said you don't have significant knock at that point so your good. Don't worry about it and enjoy your car.
 

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I'm sure dread meant to say you should NOT load your car up under 3000k rpms. I think the log looks pretty good for a stock car.
 
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