Stock Bov's Always Fluttering

[dave32gtr]

Hi everyone. Done some googling and resurch but I can't find an answer (probably just my computer skills there, or lack of). Ok my problem is, I have a r32 GTR, and the BOV's will vent continuously. The car has been sitting still for about 9 months and this problem as arisen since then. Put your foot down and its all good. Drive down the highway and the BOV will continuously flutter while the car hold .2 or .4 of a bar of boost. I have taken them off thinking that I might be able to service them or just lubricate them. However they seem to be a sealed unit. I can't see any cerclips etc to access the internals. Any help or ideas would be much appreciated. The car is running a little rich so I was thinking there might be a air leak somewhere. Not sure if this is going to be related or not. Last of all I will be away for the weekend so if I dont reply for a few days it's not for being rude.

Thanks again Dave

[R.3.2.G.T.R]

what turbos u running? My gtss would light shuffle on light load (certain area), although it was my apex induction kit that I would hear whooshing

[luke gtr]

They should flutter a little, its how the car maintains the correct boost pressure.

Even the slightest hint of off throttle, and they will start to open.

If you really want to try lubrication, take them off, and try some wd40 straight down the guts.

Eg, where they plumb back to the intake.

Or try someone else's.

I'm running glad gtrs, and they constantly shuffle and flutter, could be the turbos if not stock.

Good luck.

[dave32gtr]

Na they are stock turbos and it is a stock engine, with pod filters. The BOV's will flitter even when the turbos are trying to boost. So then the car wont boost properaly. The only way to get the car to boost is to take your foot off the accelerator, then put your foot down. Really anouying as I can't just drive up a hill on the highway as the car wont boost passed .4 of a bar due to the BOV's opening. So I am thinking what ever it is that tells the BOV's to open (ie vacum hose?) must have a leak. However I thought I would just service the BOV's if I could while I have them off.

[TwentySix]

dont think his refering to the curtain rev or cruising speed rb26s flutter ???

check the timing !! hopefully u will be suprised

[SargeRX8]

I do this with my car, rb25, it's hilarious, very light throttle it's like a sneeze which won't end. I believe it is normal. I can't do it anymore with my new turbo though

[abr33]

Check the lines that actuate the bov's, might be cracked, and not getting enough pressure to keep valve shut off under boost, bizzare that when you take it off and hit it again it works..