[s-cars] Forge BPV's ??(diverter valves)

[S4audinut at aol.com]

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In a message dated 01/30/2003 6:02:48 PM Eastern Standard Time,
joeamund at online.no writes:

> Hello listers!
> Does any of you have any experience with the Forge BPV's?
>

I do and they cured some large problems for me.

> ( http://www.forgemotorsport.com/s4.asp?cat=audis4&catalog=AUDIS4DV )
>
> I am a bit puzzled over the two types diverter valves, one is the FMCL007P
> closed loop all aluminium with a piston and the other is a FMDVR-Race also
> aluminium but with a diaphragm and four different springs.

I used the larger piston/diaphram piece. Supposed to have excellent staying
power, it certainly handle my blowoff well and sounded like a shotgun when we
closed the throttle at the end of the dyno pull, scared the shit and all out
of me the 1st time till I figured out what it was.

>
> I would  think the piston  type would be more durable, since I am having a
> lot
> of trouble keeping the Audi RS2 BPV to hold in my car at all. the diaphragm
> is
> ripped almost apart after som months of driving and they are expencive too,
> let alone the power loss.(which is the worst...)
>
> I probably should have gone to a bigger dimention when I did the plumbing
> on
> the IC, but is currently running two identical RS2 BPV, and wanted to hear
> your opinion before i purchase two new ones.

Get rid of one of the BP valves and plumb the big forge in. Use stiff
Silicone, mail me offline and I will get you a source. Also plumb for 1" as
this is the valves nipple size and heavy silicone doesnt like to stretch.
Mine works beautifully with one.

>
> Best reg Joern,MTM RS
>
>
>