Boost controller options + solution to my low boost problem

[Pat Dooley]

something you might consider is a mechanical device:
http://boostvalve.com/

I don't know about the K series turbos but it works very well on the
garretts.  My Merkur holds 18 psi steady, never a spike, never a problem.

> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of james accordino
> Sent: Friday, October 04, 2002 8:13 PM
> To: Marc Swanson
> Cc: audi list
> Subject: Re: Boost controller options + solution to my low boost problem
>
>
> I think the only real downside to the manual system is
> the lack of automatic safeguards.  That's why it's
> called a "schrapnel knobben", right?  This is fine to
> me as long as:
>              you use good gas always(no 87 octane)
>              you really KNOW your car/engine
>              you know when it's knocking and drop
> boost
>              you can "tolerate" a blown engine
>
> What I mean by tolerate is that it's not an end of the
> world situation like you just blew the 20 grand mill
> in your new S8 and they voided the warranty because of
> your mods.  Dig?  I think by your posts that you meet
> all of these criteria, so why not go for a $20-50
> manual boost system using bypass air?  I would spring
> for a good pressure regulator.  Some of the cheap
> Chinese ones aren't very accurate and will leak or
> change pressures on their own.  BTDT, with shop air.
>
> Jim Accordino
> --- Marc Swanson <mswanson at sonitrol.net> wrote:
> > As some of you may know from my previous ramblings
> > I've been having a
> > problem where I could not seem to get over 8psi with
> > a Charlie Smith
> > spring.
> >
> > Just for kicks last night I tried plugging the
> > wastegate signal line to
> > eliminate it as the problem area.
> >
> > So out I go on a drive where I come to a stop and
> > nail it at an
> > intersection.. figuring that if the car was going to
> > overboost I'd see
> > it and back off.  I matted the throttle and before I
> > could even blink my
> > car was screaming at 25psi!  Woah!  So much for my
> > thoughts on a leak or
> > an oversized turbo ;-)
> >
> > In any event this made me realize that the only
> > reason my 4ktq with the
> > old CIS setup hit 12 psi with this spring was
> > because of the WGFV,
> > pressurizing the upper WG chamber (DUH!).
> >
> > So now I'm in the market for some kind of external
> > wastegate control and
> > I thought I'd get the lists opinion on the pros and
> > cons of the various
> > setups out there:  manual vs. electronic, bypass vs.
> > upper chamber
> > pressurization (ala CIS WGFV), etc.
> >
> > I'm leaning toward the el cheapo manual setup since
> > I don't think I
> > really need anything more than a device to give me x
> > psi over stock.
> >
> >
> > Thoughts?
> >
> > Thanks!
> >
> > --
> > ----------------------------------
> > Marc Swanson, Software Engineer
> > Sonitrol Communications Corp.
> > Hartford, CT
> >
> > Email: mswanson at sonitrol.net
> > Phone: (860) 616-7036
> > Pager: (860) 948-6713
> >  Cell: (603) 512-1267
> >   Fax: (860) 616-7589
> > ----------------------------------
> >
>
>
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