Aaaaahhhhh. Now I get it. I had read your original post yesterday, but DemonSVT had said otherwise, and when I came back to review what else had been added to the post I didn't go back to see your first post, so it was kind of a one opinion against another opinion thing, with me forgetting a little, and reading too quickly to properly take in what people were saying.

Thanks for spelling it out for me Pascal. I think we were on different wavelengths because I was still thinking that the Bypass valve was for preventing compressor surge and the Blow Off Valve was for preventing overboost, as DemonSVT had said. So when you said that they both prevent compressor surge I took that as meaning they are the same thing, just set up to vent in different spots.

And Demon, sorry for saying you were wrong about them being different, when you were actually right. I didn't mean to really come out and yell YOURE WRONG, but I think it kind of came out that way in one of my posts.

Bob

A little knowledge is a dangerous thing.