VS-VY Enhanced Factory Bins

[The1]

anyone with a VT V6 N/A that would like to use enhanced mod let me know, can port the S/C bin mods over to N/A

[The1]

getting pretty excited about the next version, hope you guys are to.

Like to also thank Charlay86 for his work on a heap of the code.

VT-VY Supercharged will be first, then the rest later, but now that we have this new code done i plan on getting stuck into the rest

sneek peek.

If you can guess what they both are i will post up pics of all the new stuff.

[yoda69]

Extended MAF frequency and mgc?
If so, well done lads.

[The1]

bingo!

New version will have:

High and Low Octane Spark Tables 850 - 1650 Cylair
Spark Correction Intake Temp 850 - 1650 Cylair
Injector Multiplier Table 850 - 1650 Cylair
14 MAF tables, now extended upto the PCM Hardware limit of 16226hz
Knock Active Loops
Pin A5 & B10 Inputs Enabled

Extra Data for Logging:
Adaptive Spark for Monitoring Retard Between Hi/Low Octane Tables, not including Knock Retard
A5 & B10 Pins
Knock Active Loops
Injector Multiplier Monitor, Will show current multiplier being used from the Injector Multiplier Tables.

Have also Rescaled the Spark Intake Temperature Table so the Temperature has more resolution in the range you often use. No point having 100c intake or - temps below Zero and above 64 you will be doing extreme spark modding anyway.

IAT.jpg (144.49 KiB) Viewed 4906 times

Now with the MAF being able to scale to 16226hz this should be into the 3bar map territory, i have read that some of the new LSX Card MAF's can do 15-16k hz, there are already sellers on ebay making alloy tubing to fit the card MAF's into standard tubes for use in other cars, so it should only be a matter of loom wiring to be able to use one, also should be alot less restriction with card maf's being there's no screen or obstructions. Will be interesting to test if i can get hold of one. They also seem alot cheaper than the LS6 MAF

Either way a V6 with some decent boost and heads/cam etc should be nice to be able to tune properly.

[ejukated]

Looks like a fantastic feature set. Can the intake temp exis be scaled? Thinking about boosted applications where you fit the iat into the manifold may well see 80+ during heat soak and it'd be good to temporarily remove spark till things cool down

[yoda69]

This is another drawback with MAF, you need to know the air temp at the MAF sensor to be able to accurately calculate the airflow. With boosted applications really need a second air temp sensor in the manifold that can be used for spark control.

[The1]

Not a drawback because of the MAF, you can use either the LS6 MAF airtemp sensor or you can use the stock one from in the airbox, both are within 2c of each other or you could use another sensor depending on its calibration of 0-5v, there is actually a calibration table in the calibration area so if you wanted to use a 3rd party sensor you could recalibrate it yourself. If people want this table i can add it in to the xdf.

In the stock tables the last row was 99c the second last is 64c, so there is basicly no resolution between 64-99c, so i knocked off some range and was able to get some more room to make the table larger and thus run a 1:1 code resolution.

But if you guys think you need more than 64c i can scale it the other way, perhaps like below? Prob Below 11c intake or LIM would be unlikely to need compensation you would only change your main spark tables then offset for hotter.

iat.jpg (143.29 KiB) Viewed 4888 times

[The1]

This is another drawback with MAF, you need to know the air temp at the MAF sensor to be able to accurately calculate the airflow. With boosted applications really need a second air temp sensor in the manifold that can be used for spark control.

the intake temp sensor is only used in the code for spark offset, nothing else.

[The1]

With boosted applications really need a second air temp sensor in the manifold that can be used for spark control.

Defiantly something that could be looked at in another update depending on interest, Could program in a Flag to turn on/off the feature, making one of the spare inputs another temp sensor with another spark offset table. Though thinking about it generally one sensor is enough and mount it where the temperatures are going to be the deciding factor of what spark gets taken in or out, usually where the most heat is created. Let me know your thoughts.

If anyone has other ideas on anything else they'd like to see let us know, if it's doable or not is another question.

[ejukated]

MAF measures the airflow directly, that's why it's calibration table is in g/sec. On a blown application if you don't have your IAT after the inter cooler you're really not compensating for what air temp is actually entering your engine, you'd also have no idea if the inter cooler is working etc.

I'd probably like to see the table sending slightly north of 100degC and starting close to 0degC. There are plenty of places in Aus where those temp extremes are likely.

Since there are a few different opinions here on useable range, is it something that can be madness definable? Probably requires more code tho.

Anyway, it's a really good code base - just a few suggestions