Quote Originally Posted by Muzz View Post
My opinion - If the 90% of turbo oem cars come with a recirculation valve, when the manurfactures are all focoused on keeping costs down, then theres obviously reason for them using one. They dont just go sticking random parts in there cars, they do testing and evaluating, if it was worthless it wouldnt be there.


What about a cat converter? Its there for emissions, so is a recirculation valve.

Garret states that compressor surge is bad for their turbos, what have you got to show them to be wrong?
People who have not rebuilt their turbos after 4-5 years of dosing.

Im not saying it doesnt do any damage, im just saying its so little, its not worth worrying.


Also, you keep neglecting my evidence.

Nizpro doesnt use them, responsible for the 1153hp xr6t, and you would think at those heat levels, premature wearing should be exaggerated.

Prodrive, the guys that run the subaru WRC car, and various other race cars, seem to think its unnecessary in the road going concept.

The guys responible for the Aqua subaru dont seem to think that its needed.

Many people on calaisturbo have been dosing for years without rebuilding turbos. Youd think they would stop dosing if it was so clear that it damaged turbos.

O, and my friends, have been dosing for years now, i we've yet to rebuild a turbo.