I have a cat that needs modding 
...well, cleaning actually 
On a serious note i'm up for the Silvia sounds
...well, cleaning actually On a serious note i'm up for the Silvia sounds
It is a Bov i'm afraid to say, they are common here in Aus under the hood of rb30 powered commadores.
In your first post I think your confusing a wastegate with a boost controller at the start, the wastegate isn't to protect the engine, it's to protect the turbo from air spinning it backward as pressure builds up at the throttle body when it closes. There is much debate as to wether this has any effect on it at all but for piece of mind most people drive with them.
What you were describing at the start was what the boost controller does, vents excess pressure while accelerating.
One other thing, if you do not have a bov installed, what you'll here is air cavicating over the turbine wheel when you let off throttle. Known in certain circles as 'Pigeon flutter'
What you were describing at the start was what the boost controller does, vents excess pressure while accelerating.
One other thing, if you do not have a bov installed, what you'll here is air cavicating over the turbine wheel when you let off throttle. Known in certain circles as 'Pigeon flutter'
Last edited by NebT.O., .
FGED GREDG RDFGDR GSFDG