Does it matter where VAF goes on turbo setup?

[323Foreword]

I connected the VAF to my FMIC. Before I had it coming out of the turbo like the BPT came from factory. But now I don't have the same fan, I changed it.

The car runs and idles fine. Is anyone running like this?

[D323]

I plan on running that way...

does it leak on you much?

[atomicEGT]

my vaf is where it belongs- in the garage with the rest of the useless junk i pulled off the car :p

[D323]

my vaf is where it belongs- in the garage with the rest of the useless junk i pulled off the car :p

lol, agreed. Map Sensor pwns and is the way to go... but for those of us that are cheap for the time being... I'll try the blow through method.

Just make sure that your BOV is after the VAF (closer to the throttle body)

[323Foreword]

Just make sure that your BOV is after the VAF (closer to the throttle body)

If blowoff is before VAF?

[*PL*]

If blowoff is before VAF?

lol, begin by understanding the principe of a BOV and you will answer your question.

[ScOrTGtC]

its better if its before.. its much better so the Vaf can see how much air is fomming in.. also how much is released.

[D323]

its better if its before.. its much better so the Vaf can see how much air is fomming in.. also how much is released.

Do you mean the BOV before the VAF? If so, then no, then you have air going backwards through the VAF. Air backwards thru a flapper door = very bad for flow readings.

When the TB closes the air bounces back. The BOV opens to keep the air from reaching the turbo. Its recommended to keep the BOV as close as possible to 6in away from the TB.

IMO you want the setup to be Turbo ~> IC ~> VAF ~> BOV ~> TB

This keeps the air from going backwards through the VAF and keeps the BOV as close to the TB as possible.

[323Foreword]

I connected the VAF to my FMIC. Before I had it coming out of the turbo like the BPT came from factory. But now I don't have the same fan, I changed it.

The car runs and idles fine. Is anyone running like this?

I changed it around and the car idles smoother alittle higher and before when I stopped really fast car use to shot off.

[Lex]

I changed it around and the car idles smoother alittle higher and before when I stopped really fast car use to shot off.

With that setup, that VAF wont last too long on there ....

[Denis]

my vaf is where it belongs- in the garage with the rest of the useless junk i pulled off the car :p

WERD! Standalone FTW....!

[elscotto80]

With the VAF there, it cant be good for flow at all. Put it where Mazda designed it to be.

[BuGS]

Where do you have your IAC hooked up at???

[323Foreword]

Where do you have your IAC hooked up at???

I have it plugged up

[elscotto80]

I have it plugged up

How in the F is your car running?