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slow&rusty slow&rusty is offline
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Join Date: May 2005
Location: Houston
Posts: 4,355
The device that is dirty and reads "TWM Induction" on top is a boost sensitive Fuel pressure regulator (adj. FPR). It needs to reference a signal off the intake manifold and then raises the fuel pressure using its built-in diaphram. It will typically raise fuel pressure 1 psi for every 1psi of boost it detects and needs a vacuum line connection to your intake manifold. These adj. FPRs are good for well over 3bar by the way, as your idle fuel pressure will be almost 3bar (45psi).

I have installed alot of these FPRs over the years and have had very good luck with them.

The BOV does not have to be re-circ, and I have set mine up to vent to atmosphere. The BOV prevents compressor surge and damaging the turbo when the throttle body is closed between shifts and there is XXpsi trapped in the intercooler piping that backs up against the spinning compressor blades on the turbo.
It needs to be connected downstream to the intake via vacuum.
Yasin
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Old 11-05-2010, 04:43 AM
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