Boost controller options + solution to my low boost problem

[james accordino]

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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