i have an 01 a4 1.8t with giac-x chip and dv, im running around 15psi and spiking 18, my diverter valve came with the tuning kit to change out when running higher psi, but i dont remember wich color is in wich psi range and if i need to change colors. i tried searching couldnt come up with anything.

 

in PSI

Green - 5-15 PSI

Yellow - 15-23 PSI

Blue - 23-30 PSI

Red - 30 + PSI


or in bar

Green: 0.3-1.03 Bar
Yellow: 1.03-1.58 Bar
Blue: 1.58-2.06 Bar
Red: 2.06+ Bar

 

so do you think i should put the yellow one in or no..... and does it make any sound difference or performance differance at all

 

if you use the strongest spring it will not recirculate the air the spring will not be moved by the air. go w/ yellow like you said definatly.

 

if your not expirencing any boost issues or problems holding boost leave it alone, i still have the green spring in mine and I spike at 23psi and hold at 19psi and have no problems

 

I have found that the yellow spring was less spikey but didt let me hold enuff boost (15psi) , green one i have found to be more spikey but lets me hold more boost (18psi).

 

yeah i had the same problem yellow doesnt hold as much but less spiky(18psi) green hold a sh!tload more for me(23psi)

 

Yea I spike 23 and hold around 18 with my green spring on X chip tuning...

 

Well i have a 98 1.8tqm with giac and n75j and i fall down to around 8 at redline....should i go back to the green spring?