waste gate operation

[Konstantin Bogach]

No, it is not same. If you pinch off lower hose there will be no pressue to close wg pushing
against wg spring (no ecu envolved). If you have 1.2 bar spring and bad full trottle switch
(ecu will not add pressure on top of the spring) when boost a value >1.2 bar wg should open
and exaust bypass the turbo. With lower hose pinched off you have ~1 bar (atmosphere) at lower
chamber and wg is always closed. If you pinch off hose from fv there will not be much effect I
think. Never tried though. I think it may cause a vacume leak

Konstantin Bogach.

>
> > Ameer,
> > my knoledge of it kind of shaky cause I have some questions on it as
> > well but to my shaky one the lower chanber hose (bigger one) is
> > connected to intake manifold and waste gate frequencny valve mixes
> > manifold pressure with atmospheric pressure. Lower chamber pressure
> > opposes WG spring and mixed pressure assist spring. I never saw
> > discription how it works. This is what I came to using deduction method.
> >
> > If you pinch off lower hose you will get overboost very easily.
>
> A friend of mine suggested that we pinch one of the hoses, I think
> for the WGFV, to up the boost for fun.  I declined on the offer,
> thinking if it was that easy, there wouldn't be a market for chips.
>
> What are the effects of doing this type of thing?  Does it equate to
> bleeding off pressure from the hose going to the ECU, making it not
> see the actual boost?  Or, what?  I'm not yet at the point where
> things are all making perfect sense.
>
> I was thinking, ever since someone mentioned that it takes load
> and not rpm's to build boost (which is evident just from driving), that
> I would probably learn alot from that Corky Bell book.  I'll have to
> get one of those.
>
> Thanks,
>
> Ken
>
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