[urq] Many questions...

[Louis-Alain Richard]

Ok then, so exhaust pressure is about the same as boost pressure ? I guess
so, since both are "linked" together via the turbo main shaft, more or less.
Otherwise, there must be another weaker/stronger spring in that WR/KH
wastegate. Anyone knows ?

Louis-Alain


-----Message d'origine-----
Craig,

Not on the typ 43 cars and Euro WR cars.
US WX and later KX and MC engines, yes, the intake pressure opens the WG.

I used a typ 43 manifold (uncrackable) on my MC and had to block the
exhaust port (right at the turbo mounting flange).

HTH
Martin


> craigcook at rogers.com
> I'm pretty sure it's intake pressure acting on the lower wastegate chamber
> that opens the wastegate.
>
> Cheers,
>
> Craig.
>