Air Flow Meter Relocation Question

[Mid_Nite_R33]

hey peepz,

Does anyone know if relocating the air flow meter onto intercooler piping is ok to do? would it cause any problems?

Im not too sure because normally uncompressed air runs through the AFM and if it was on the cooler piping it owuld have 1 bar of boost going thru it....

Any advice?

thnx!

[Adriano]

It works fine, however if you run significant boost, then the housing will split/crack. The only real reason i can see for doing it is so you can run an amo BOV without the overfuelling, but for that to work the afm has to be plumbed after the BOV

[The Dan]

There are other benefits like better air mass readings due to temperature differences.

I used to run 1.4bar through mine for a couple of years no problems

[Adriano]

Do you think the reading becomes more accurate as the temp increases?

[TurboX]

You could do this and drill a hole to fit in your piping and seal it like I did.

Lot more here Lot more here

[The Dan]

Do you think the reading becomes more accurate as the temp increases?

It's more accurate overall. Only if you have an aftermarket ECU. It means you can eliminate cooler efficiency as a variable in most cases. It also stops the overfueling on throttle off with an atmo bov like you said.

[Mid_Nite_R33]

Im running 15psi,

Basically i wanna run no BOV at all, put a metal plate behind the factory BOV, this should help me reduce lag on my 2540 and have the flutter noise Yea i noe some might be against that but im bored of my silent car lol

If I kept the AFM in the original position then when back off the accelerator the air would rush backwards throught the turbo and then via the intake/AFM, which would damage the AFM, is that right?

tom

[Mid_Nite_R33]

..given that im running a power FC and Z32 AFM , would I need to get a re-tune done after relocating the AFM?

[Adriano]

I would definately have the tune checked afterward