[Pinscher]

Hi Folks.

I just put a heavier spring in my blow-off valve and now it makes a subtle pawph sound instead of a higher PFFFFTT.

I did notice at higher bost that I still get the PFFFFTT, but it's accompanied by the pawph sound.

I'm running JB4 Map 5 so like 16 psi.

Also, I put the heavier spring in as when I was building boost I constantly hear a ppssshhfff sound, like something was leaking.

I have no boost leak engine codes, ATM

Thanks for any advice you can give.

[924er]

Log a 3rd gear pull and see if your hitting boost target

[iqraceworks]

Originally Posted by Pinscher

Hi Folks.

I just put a heavier spring in my blow-off valve and now it makes a subtle pawph sound instead of a higher PFFFFTT.

I did notice at higher bost that I still get the PFFFFTT, but it's accompanied by the pawph sound.

I'm running JB4 Map 5 so like 16 psi.

Also, I put the heavier spring in as when I was building boost I constantly hear a ppssshhfff sound, like something was leaking.

I have no boost leak engine codes, ATM

Thanks for any advice you can give.

What was the reason for putting in a heavier spring in the BOV? It's going to blow off at a different boost point than before...that's why the sound changed.

[Pinscher]

Originally Posted by iqraceworks

What was the reason for putting in a heavier spring in the BOV? It's going to blow off at a different boost point than before...that's why the sound changed.

I went from sub stock psi levels due to having a boost leak to new stock turbos now running 16 or so psi

[Pinscher]

Originally Posted by 924er

Log a 3rd gear pull and see if your hitting boost target

There is no where around here where i can go 160km/h.

[Pinscher]

Will the lighter spring loose boost once psi is too high?