EvoBoy03

I am just put on my Greddy type s blow off valve tonight and I tried putting it on before but I had problems with my idle and the car shutting off on me with it on. Tonight it seems ok so far but the blow off valve sounds kinda like a vooosh with a whistle at the end at full boost but at low boost it kinda flutters. I am not sure if this is good or bad. The screw is about a quarter of the way out from the top, should I just have the screw mostly out all the way. Any advice would be greatly appreciated also any pics of your type s on your evo would be great.

Thanks
Michael

8th_Sin

The low or partial boost fluuter is normal for the greddy. The optimal setting is usually showing about 5 threads above the nut.

Tuner23

iTrader: (2)

open up the valve and take out the smaller spring, it will blow off at low boost pressures without the stutter. and also hold upon peak boost levels.