i just got done installing my HKS SSQ and mny ATP UPP and when i rev it up the turbo flutters really loud after i let off the gas. is this normal or is something wrong?
On low boost it flutters, but after like 4psi it will make a loud high pitched sound, I love it. It doesn't seem like anything is wrong, if it flutters at higher boost some of the lines might be hooked up wrong, it happened to me.
later
Tighten the spring down . You really dont want it to open much until your in the boost range. You will get less flutter. Flutter is normal though. You should here the hks on my car. :evil:
my BOV is cranked all the way down pretty much and it lets off at about 10 under vacuum, but anything lower than that and you dont hear a thing. Anything over 10 vacuum and that baby screams!
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