BOV controller

[s2_bo]

I saw the other day that Turbosmart have developed a BOV controller. See here

Effectively just a controller that uses a solenoid to adjust when and how much air is going to the BOV/DV cap.


I wonder if any of our resident mappers could code an adjustable controller like this in to an ecu remap.

Could be used to open the BOV/DV early, not as far or late to give a bit of compressor stall when you want to impress your mates

[Jamo]

This system is in effect as standard on the S4 cars and it's one of the 1st things to be deleted by tuners and home modders

[s2_bo]

ohh ok, ill get my coat then..

[Jamo]

I actually was interested in well when I 1st saw it, had the same idea controlling via vems

[prj]

This system is in effect as standard on the S4 cars and it's one of the 1st things to be deleted by tuners and home modders

Huh???

[Jamo]

The bi-turbo's control the dump valve via the ecu and N249 valve. They perform the N249 delete

[prj]

Ah yes, I thought you were talking about 2.2T

[4WheelDrifter]

This system is in effect as standard on the S4 cars and it's one of the 1st things to be deleted by tuners and home modders

Yup. Jamo is correct. It's the same on 1.8Ts. I did that years ago on the A3. It comes with a small vacuum reservoir so that the ECU can operate the DV when it likes. Deleting allows you to throw that and a load of check valves and hose in the bin.

So that kit would be a good waste of money IMHO.

The S3 also has that damn SAI and N112 crap I still need to get around to ripping off.

[prj]

N249 supposedly helps fuel economy by reducing pumping losses though?

[4WheelDrifter]

N249 supposedly helps fuel economy by reducing pumping losses though?

Supposedly. I can see the theory. But I can still get up to 45mpg (<6.3L) from my A3 1.8Tq on a trip.
As far as I can tell it's a lot of unnecessary junk under the bonnet.