[s-cars] safe boost limits - Wastegate 101

[S4audinut at aol.com]

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In a message dated 09/19/2002 10:18:27 AM Eastern Daylight Time,
QSHIPQ at aol.com writes:


> > From what I have read on the list the wastegate spring limits max boost to
> > only 1.3 bar Abs, and the WGFV is what is allowing the overboost to get
> > where it is.
> > Is this a correct assumption, if so... winding down the wastegate would
> do
> > little, would it not.
> >
> >
>
> No, The WG spring has more to do with getting these unacceptably high
> levels
> (unless engine totally built) than any SW. I have some VERY aggressive SW
> and
> it doesnt run this high when not in overboost.
> Rod
>
>

Scott,
What I was saying was that people cranking the WG spring down to the bottom
has more to do with getting these high level boost settings in most cases
where I have seen excessive boost: or that a boost controller was used
improperly. I was trying to say that you can crank it down so that it never
wastes, BTDT.
I have SW that runs to 28lbs. then backs down (highest) and some that go's
only to 21 on overboost (lowest). Most people dont get their hands on stuff
that peaks above 25lbs and I have not seen any that stays at 25, so if you
arent using a controller, you probably have the spring cranked too tight
(kind of like you).
Didnt mean to imply anything else.
Rod