FW: [s-cars] Bosch bypass blowup

[mlp]

-----Original Message-----
From: mlp [mailto:mlped at qwest.net]
Sent: Friday, August 23, 2002 8:31 AM
To: Matthew Russell; Audi list
Cc: konecc at snet.net; smarinello at telocity.com; JShadzi at aol.com
Subject: RE: [s-cars] Bosch bypass blowup


I know they are pricey & for that matter, probably a little ricey, but....
having had one apart, that Greddy "Blow of Valve" (ricer tech "You want /
need to attach a hose where!? and plumb it back into what? Your INTAKE
tract?  That'll kill the sound!  What kind of car is this?"

Can you say a "venturied" barrel (i.e. semi rolled lip) at the piston
opening?

If you have to redo your plumbing anyway, how about a significantly larger
(say @ maybe as much as a 1.5" OD vs. the stock 1") passage from high
pressure side to where ever you want to release your pent up gasses yearning
to be free.  It's certainly bigger / more capacity than the 1.25" plumbed
TurboXS BPV currently on the car.

Possibly a better, single BPV solution to those big turbo applications which
in the past I'm told Audi & others have tried resorting to using two BPV's
in parallel to forestall stall.  Much, much simpler plumbing.

What, at least based on a very scientific bench "finger" poke test, seems to
be a very positive "on/off" opening action ~ i.e. no leaking around the
edges, partial opening with high pressure in the intake manifold.  Stiffer
even, yes than a shimmed TurboXS.

Oh yeah, and did I say Very, if not slightly muted in our particular
application, very Ricey looking?

m "back from shopping the Home Depot Plumbing, Pipes & fittings department &
älmost running again" lp

~-----Original Message-----
~From: s-car-list On Behalf Of Matthew Russell
~Sent: Friday, August 23, 2002 6:57 AM
~
~Javad, Steve, et al-
~
~Although I agree with you all, I have also heard of failures with the Forge
~and Bailey units, too.
~My 92 is MTM 1+ currently.  I'm running the Audi TT BPV, which was only 30
~bucks and hasn't failed yet.  (My VW parts guy looked at me kinda
~funny when
~I bought it, but that's the least of my problems.)
~
~Check the archives, there was a lot of discussion about this a few months
~ago.
~
~-Matt, CT
~92 s4
~