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AFC---->Uberdata (all in theory)

Old 12-14-2003, 10:15 AM
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Default AFC---->Uberdata (all in theory)

Okay, i read this on pgmfi.org and i figured i would do a walk through and someone could test it out....in theory it should be a good start for a basemap.

Originally Posted by Johnyquest
Stock D16Z6, '95 Civic Ex Coupe
Volvo t3, ~10psi, stock timing, DSM450's, black-top

NE POINTS: 1k,2,3,4,5,6,7,8
LO/HI Cross: 70% / 71%

Settings:
.....LO: ..... HI:
1k: -34 ..... -36
2k: -36 ..... -36
3k: -36 ..... -36
4k: -36 ..... -36
5k: -36 ..... -36
6k: -36 ..... -36
7k: -36 ..... -36
8k: -36 ..... -36

-34 at idle holds it perfect, and -36 is the lowest i can go without a 'bog' if i floor it real quick. It is rich as can be, but better rich than sorry!
Runs awesome, pretty sick power.
Okay we will use this as our example.

First open uberdata and open the bin that goes with your ECU. In this case I will be using a stock bin for a P28 ECU.

Bascially the idea behind this is to use the precentages from your AFC and just use them in Uberdata. First, go to the boost tab and set your fuel efficency at 120...your timing you can set at whatever you like. 1.0 is always a safe setting. Next, select the values in the fuel lo table below 1000rpm and multiply it by 100-35=65% Do the same for the rest of the vaules. and then go into the Fuel HI and do the same as you did for the Low Fuel. if you dont have V-tec Skip this step.

This should be a good basemap to start.

NOTE: This hasnt been tested its all theoretical, if someone would test it then we would know if this would basically work but in theory the numbers seem damn close to what i would plug in for uberdata...although these numbers seem a little lean..so you might want to add like 2-5 onto the AFC percentage (35+5 in this case)...but its really your choice.
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Old 12-14-2003, 10:58 AM
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Default Re:AFC---->Uberdata (all in theory)

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Old 12-14-2003, 11:06 AM
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Default Re:AFC---->Uberdata (all in theory)

Sounds like a good theory.
I think it is about right like that.
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Old 12-14-2003, 11:16 AM
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Default Re:AFC---->Uberdata (all in theory)

Originally Posted by TurboEF9
...
would you like to put a little more input? I dont think this is fine tuned in the least...thus the reason i called it a basemap...but uberdata walkthru explains to use this formula to scale the map (240/450(injector size)*100+5..which is 58....65...58...pretty close..thats why i suggested adding to the 35+(2-5) which would put you in the 60 range....58=rich.....i dont think its that off but i would like to here your opinions on it...
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Old 12-14-2003, 08:42 PM
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Default Re:AFC---->Uberdata (all in theory)

turboef9, could you elaborate? I am planning on using this method for my car and if it's not a good idea, I'd like to know. also what is the better alternative to it? (for a BASEmap)
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Old 12-15-2003, 11:02 AM
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Default Re:AFC---->Uberdata (all in theory)

Depending on how much boost you're planning on running, you'll throw code 10 with those settings.

Using the "AFC hack" as an engine management tool to control boost, while functional, is not really a method of "tuning". Anything at 9psi or above, I would strongly recommended boost modified ECUs. This way, your static timing can remain stock, while still being able to manipulate your ignition able and apply adequate fuel without ruining your MAP sensor input... anyway, this is just how I feel. Not to mention, I have derived this knowledge from personally running the "AFC hack" for 6 months before running boost modified chips.
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Old 12-15-2003, 05:13 PM
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Default Re:AFC---->Uberdata (all in theory)

I'm confused by your post. In uberdata you generally open the stock map and edit it. There are no "boost maps". by changing the fuel efficiency, changing the timing, and scaling for the different sized injectors, that is converting a once stock map to a boosted basemap.

Going by just the FAQ, fuel efficiency=120, timing=1.0(less boost less timing taken away obviously), and for injector scaling it is 240/(injector size)x100+5...in the case of a 450cc injector you get 58.333....so if your afc settings are -38...100-38=62...62 is damn close to 58.33...i would probably round down to 60 just to be on the safe side though. I really dont understand what is wrong about doing this for a basemap.
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Old 12-15-2003, 05:37 PM
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Default Re:AFC---->Uberdata (all in theory)

If that is true, then Blake is scaling MAP sensor input internally which results in loss of resolution of the overall fuel and ignition maps, which we all know is not desirable.

However, I think you are mistaken, as I know Blake would not code that way. From what I see, there are boosted tables. Those sections on the right hand side, that when a stock map is loaded, have null values in them, those are the boost tables. These should be in use on a boosted application.

What you're talking about is simply scaling for larger injectors. The hole in your logic is you're not compensating (or forgetting to explain) MAP input signal when running a "stock" MAP.
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Old 12-15-2003, 05:43 PM
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Default Re:AFC---->Uberdata (all in theory)

i think you should really open up the program and do the steps im suggesting....your map will end up looking like this

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Old 12-15-2003, 05:44 PM
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Default Re:AFC---->Uberdata (all in theory)

Yes, blake enlarged the tables (which is plain to see when you open the app) ... loss of resolution is not an option!!
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