Greetings at you all.
Recentlyish I put a GTR BOV on my R33 GTS-t sedan just for fun and perhaps a little more Bov noise.
All was good for a day or so, then it started doing the weird fart noise at about zero psi.
I thought it may have been because I did the small hose inside a larger hose trick, so I got a 38mm - 28mm reducing style hose and put that on but it still does it.
So I made up a plate from some aluminium sheet and drilled some smallish holes in it to use as a gasket, thinking that the reduced flow to the plunger might help.
It gave me the flutters, so I made the holes bigger and back came the fart noise again.
If I block off the bleed hole on the outside of the BOV will this fix it?
That is the next thing I was going to try.
I have tried a different GTR BOV and it still farts at the same zero psi and put my GTS-t Bov back on and the farts stopped.
Yes the GTR spring is softer than the GTS-t and I guess the GTS-t bov leaks back into the piping but the GTR leaks out.
The car may even be more responsive with the GTS-t bov on?
Knowing that many people have used GTR bovs on GTS-t's and that this fart issue has come up before (as I have searched heavily but found no fixes). I am at a loss and am wondering if there is a reason it happens and a way to stop it.
If all else fails, I'll just use my GTS-t Bov again. No big issue.
In case it matters, I have K&N panel filter, silicon intake pipe, Stock Turbo, 10psi actuator, R34 smic, gutted cat and 3" catback blitz exhaust.
Any wisdom is much appreciated.
TL;DR ???
Why does a GTR BOV on a GTS-t Fart?
How can the flatulence be stopped?
Rob.