123tom123tom Posted July 1, 2008 Share Posted July 1, 2008 right i have 2 nipples on my external wastegate one at the bottom and one at the top, i am quessing this is the norm looking at threads on here.... my question is where do i plumb those connections into exactly, can some one possibly let me know cheers. Quote Link to comment Share on other sites More sharing options...
Homer Posted July 1, 2008 Share Posted July 1, 2008 It's been discussed a hundred times mate, there's a massive amount of info here if you search. Myself and others have posted up diagrams and detailed descriptions of the plumbing in the last year or two. However in short, the side port on the wastegate goes to the compressor housing with a 'T' to the 'In' on the Boost controller, the top port goes to the 'Out' on your boost controller Are you running a BC, or relying on WG spring? Quote Link to comment Share on other sites More sharing options...
123tom123tom Posted July 1, 2008 Author Share Posted July 1, 2008 It's been discussed a hundred times mate, there's a massive amount of info here if you search. Myself and others have posted up diagrams and detailed descriptions of the plumbing in the last year or two. However in short, the side port on the wastegate goes to the compressor housing with a 'T' to the 'In' on the Boost controller, the top port goes to the 'Out' on your boost controller Are you running a BC, or relying on WG spring? i will be cartting a electronic controller, also you say a t piece into the compressor housing how is that posible, is it a case of drill and fit, why a t-piece and just not a straight connector Quote Link to comment Share on other sites More sharing options...
Homer Posted July 2, 2008 Share Posted July 2, 2008 i will be cartting a electronic controller, also you say a t piece into the compressor housing how is that posible, is it a case of drill and fit, why a t-piece and just not a straight connector The WG will already have a take off for it, a pipe needs to be plumbed to that to a T piece, with one reference to the the In BC port and one to the compressor housing. Both the BC and WG on the spring side need a pressure reference to balance the boost control with the input from the BC out port. It's the BC that will do the work to balance the two pressures to allow full control of boost. Without either the WG cannot be controlled beyond the pressure the spring is set at (either that or it will not be able to keep it steady). Edit - There was quite a good video posted earlier today: http://www.mkivsupra.net/vbb/showthread.php?t=155401 It doesn't explain it all, but it's a start Also: http://www.howstuffworks.com/turbo.htm Quote Link to comment Share on other sites More sharing options...
123tom123tom Posted July 2, 2008 Author Share Posted July 2, 2008 The WG will already have a take off for it, a pipe needs to be plumbed to that to a T piece, with one reference to the the In BC port and one to the compressor housing. Both the BC and WG on the spring side need a pressure reference to balance the boost control with the input from the BC out port. It's the BC that will do the work to balance the two pressures to allow full control of boost. Without either the WG cannot be controlled beyond the pressure the spring is set at (either that or it will not be able to keep it steady). cheers mate, glad your hear i would be knackered. found the diagram on this as well, what i meant by drilling was the compressor housing and then thread some kind of nipple or is it done some other way yeah already seen them, just couldnt get my head round how it is plumbed in Quote Link to comment Share on other sites More sharing options...
Homer Posted July 2, 2008 Share Posted July 2, 2008 cheers mate, glad your hear i would be knackered. found the diagram on this as well, what i meant by drilling was the compressor housing and then thread some kind of nipple or is it done some other way yeah already seen them, just couldnt get my head round how it is plumbed in BTW, check the post again as I added some useful links Which turbo do you have? Nearly all ones designed for petrol use have the port pre-drilled and the flange fitted. If you don't have one, then you'll need to: 1) review which turbo you have bought! 2) remove the compressor housing and drill/tap a thread into it just after the exit from the compressor blades Quote Link to comment Share on other sites More sharing options...
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