Rogue_Ant

PM me.

Olli Snellman

For example Vitesse MAF kit also have some additional hardware in it's chipboard.

toddk911

First, you are an unsung hero Rogue!! And probably John soon also as he will be a source of info and advice.

What about non stock MAF's ?

Would this still be a "AFM Massaged" singal to the DME or a true "MAF signal" ?

Is the tuning (timing or a/f) based on rpm or bost or both? I.e. partial boost/partial throttle.....There is different load for 10psi at 3K rpm than 10psi at 4K, etc. So how do you tune for that?

Rogue_Ant

Ah, I see what you are asking.
No for a MAF conversion, no additional hardware for the DME is needed.
IIRC, the chipboard is used to allow a larger (e)eprom, so one can have multiple maps.


-Rogue

Rogue_Ant

Good questions! BTW you caught my typo - This is for a stock AFM car. Most definitely you can use it for non-stock MAFs, but any non-stock will require much more tweaking. I'm not releasing MAF code.

The DME has three separate tables, idle / part-throttle / wot.
Only the part-throttle table is 3-d, and adjust for load.
I'll give a complete overview of how the DME works so people are not tuning blind...


-Rogue

Rogue_Ant

It seems that there is definately a desire for DIY tuning.

So I'll write up an overview of the DME, a how-to, and package everything needed.
I'll have it this weekend for everyone.


-Rogue

toddk911

So I would have to switch back to running barn door stock AFM??

Rogue_Ant

No. You can keep your setup. Just note that the definition file is programmed for an AFM style transfer function. If your current setup is an AFM-style chip, then you can use this setup!
The exception here, is if you have a Vitesse MAF setup, then this tuning solution will not work for you.


-Rogue

toddk911

Ahhh, cool!

oh, also would you have to tune from scratch or would there be some basline tables to start with?

Can't wait for it!

black944 turbo

Very cool idea and I am interested in this as well. I would love to see you coming out with something so I can put together and tune my own maf kit. This will be a while for me, definetly keeping track of this thread.

Rogue_Ant

No tuning from scratch. I will provide a baseline file. So you start with the factory code. The strength in this, is not having to tune cold-start, enrichment, and other tedious tasks that are an absolute necessity with a stand-alone engine management. We use the stock factory code/values for the background stuff. This allows the user to focus purely on performance tuning


-Rogue

Rogue_Ant

Even though it isn't true MAF code, this program will facilitate those who want to do homebrew MAF kits...
Perhaps in the future, I'll release more functionality. But for now, lets just get the DIY community up and running!


-Rogue

joeytoad83

you are the man.

Rogue_Ant

Thanks

I'll include AIT table and baro modifier. This will be helpful for those converting to MAF, as these compensations will need to be flattened.


-Rogue

blown 944

+1

I can say that I have really appreciated Rogue's help with tuning my car.

One other thing to consider is that you can port the AFM in certain areas and polish the whole opening.

Having just switched back to a stock AFM on one car, I can tell you will some certainty that it will make a big difference. Having the ability to tune in a modified AFM or MAF is worth it IMO