Pilot VAF to MAF converter

[PingPong]

Pilot VAF to MAF converter allows  you  to  convert an existing Volume Air Flow Meter to a Mass Airflow Meter.

I have translate  the  software and installation manual to english, because a lot of english users ask for it on my email, also there is  a hardware difference between russian and english versions- english version has an onboard usb interface and other connectors.

Here is more details about this device  
The brains of the conversion is a RISC microcontroller clocked at 12.8-MHz. This device reads the MAF sensor and calculates the equivalent volume of air, scaled to the VAF sensor’s characteristic from a special table of conversion. This calculated volume is then used to create a voltage signal which is sent to the PCM. The system is designed such that the PCM thinks the airflow is being measured by a VAF, necessitating no changes be made to the PCM itself.

The converter  supports two operating modes:

1)Simple mode for  VAF meters with reference voltage  in range of 0-5V

2)Universal mode  for VAF meters  with reference voltage in range of 0-12V  on LE-jetronic and other old style  engine management systems.

Also this version of the converter  has an  additional precision DAC for  best perfomance.

The converter has an upgradable firmware future, so if we’ll add some new features  to software or firmware  you can download and  make upgrade for  free very easy.

also you can find a lot of  installation examples  on russian  here

If someone interesting in it and  have any questions - let me know  

Thanks

[axisofjustice]

I'd possibly have interest but what kind of price range are we talking?

[wazzu70]

Very cool. This will be useful for many.

Too bad I switched to MAP based system.

[axisofjustice]

I'm considering map based too, one less thing to buy/hassle with.

[wazzu70]

Well, you have to buy the ECU that uses that metering. As far as I know there is no conversion available for us.

MAF is nice though. You do not need to recalibrate the VE map with adjustments to the engine, the sensor does that for you since it measures air entering the engine.

[PingPong]

1. Current price is $200 (includes shipment and taxes)
2.  We have ordered new PCBs and  made some software, firmware and hardware modifications  to comply with Virtual Dyno

[PingPong]

I am sorry there was disabled images for non registered users on Pilot Engineering  forum - fixed! now you can see pictures!

[Darky]

Hi guys

Just wanted to let you all to know that I have done this and it is awesome!

The Good Points
1. Throatle response or improvement is just blood amazing! Total massive improvement.
2. Although some members state that your not going to get any power improvements doing a maf conversion, and personally I agree with them, that is providing you have a perfectly serviced and tuned vfm. But Given that the average vfm is going to be atleast 30 years old. NO one has a perfectly serviced vfm.
So there are performance improvements to be had by this as it very actually tunes itself using your o2 sensor.
3. There are other functions of this device that are still being developed for example the intake air temperature sensor and that should improve this device even more.
4. Technical assistance is great, Pin is very good and knows what he is doing but has to translate things and you know what they say. Lost in translation!
5. The auto tuning device is great but very funny as it says too lean too rich or something in Russian. But it was so much fun driving your car like it was stolen and revving the crap out it to get that extra point at 5000 or more rpm.
6. He has changed from these green boards to red printed circuit boards and they are usb, but that doesn't work to well on some Windows programs so now it has a hc-06 connected to it. Ie Bluetooth. That's right my maf conversion is Bluetooth. Great!!!
7. I think it would also improve the fuel economy too, but I was too interested in fanging it!!! So much of a improvement with throatle response!!

The Bad Points
1. Pin needs a PayPal account. At the moment it's western union so it felt a bit dodgy!
2. I killed a board I believe by static, but not sure and I think this should be in a plastic enclosure with only terminals accessible. So when you handle this pcb be careful!

In conclusion this is a great mod and I highly recommend it, I can rate this as possibly the best mod I have ever done, either this or the e46 purple tag steering rack mod. It's hard to choose which I prefer more!!

Anyone who needs assistance with this I'm pretty active here so I'll be able to help!

Cheers Rohan

[Froos]

Hi im really interested in this, barndoor needs to go! What maf's should i get?

[Darky]

Hi Froos

I started with the m44 maf, but then in a update Pin added intake air temp and engine temp and the m44 maf does not have that in it so I ended up going with a e46 maf. 0280217124

But don't forget you need a trumpet in your air intake filter box just like existing square one only round and bigger and then about 100mm to the maf. Otherwise uneven air flow and problems! So grab the entire upper part of the e46 air filter box as well.

I have done the tune on the maf side still going with the intake air temperature obviously not as easy as I have to wait when it's warm, hot, cold and hotter colder etc etc.

There are lots of things that can be added to this device rpm, o2, IAT, engine temp, throatle position, maf in, vfm out.
I only went with o2, IAT, maf in, vfm out.
The rpm sensor on our cars is not compatible with this device, it will blow it up to many volts. Not sure about throttle position sensor.

Hope this helps Rohan

[Froos]

Hi rohan, what is the outside diameter of the e46 unit? Ill hook it up to this:

[Darky]

Hi Froos

The outside diameter of the maf and vfm are identical, that's not going to be your problem.

I did this to an m42b18 bone stock.
So in 720 deg ie 2 rpms each cylinder sucks for 220 deg. And that's not a lot of overlap. Making maf conversions on our cars hard.
But I have those air pulses smoothed out by first the inlet manfold and then the curved rubber boot.

In your setup you would have longer duration cams but your maf is going to have a direct line of sight of the trumpets.

Put simply I don't know!

But I would like to find out!

[Froos]

Sweet! I have longer duration cams. I recon it will take some time to get it tuned but thats ok i have access to a rolling road just need my exhaust fixst