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Wanted 935 Boost Valve ...

Des, going back a few years now but I purchased a precision air flow regulator, if my memory serves me well, it was plumbed into the inlet manifold ? to the regulator mounted under the dashboard, then from the regulator to top side of the diaphragm inside the wastegate,
this in effect puts a small amount of pressure on the wastegate preventing it from opening at 0.8 bar giving more boost and more power, you can then control the pressure of the air flow into the wastegate thus adjusting the boost pressure by the regulator,
so the answer to your question is find a company that supplies pneumatic parts, you will need the precision air flow regulator, a few fittings, and a few metres of air hose to do the job, it was a relatively cheap mod, the other mod I would recommend is the APEXI boost control unit,
as you know more boost means more heat with end result of engine detonation, I ran my turbo safely at 1.2 bar, was putting out over 400bhp, and flames on the over run, anyway since when did you have a turbo ??
 
Hi Des, the best type is the ball valve type, don't go for the bleed valve ones, they're inefficient.

http://www.forgemotorsport.co.uk/content.asp?inc=product&cat=0029&product=FMUNOS
will get you started.

David
 
Adjustable?

Why not just have the boost set to 11 or "max" at all times...

Surely, your right foot is the regulator? [:D]
 
Des - I presume that you've already asked Bob Watson?
Might also be worth talking to Richard Chamberlain at Chimp Tune - he needs something to turn down the wick on that beast of his!
John
 
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