Ok first things first...

Car in question is a MY98 WRX. Had a Turbosmart BOV (atmospheric wank), has Turbosmart bleed valve too.

With the atmo BOV, could flog it in any gear no problems whatsoever... But being me, I'm not a fan of atmo BOV's so I put a stock one on. Since then smashing the right foot into the firewall now gives boost cut (or whatever else causes the feeling of hitting a brick wall).

I've wound down the bleed valve with no success.

Is this something silly like I have put the stock BOV back on the wrong way or something else.

Any help is much appreciated!

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

have you got a leak anywhere? i remember on my old ra i had a crack in a T-piece an it let it over boost? have you got a boost gauge?

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cant put the stock bov backwards on a 98, as the hose diametre is different between inlet and outlet.

No boost gauges here...

Diameters looked the same when I was putting it back on? Or maybe I was shoving the pipe on too hard

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

LOL i somehow did! on a FMIC though. Was wondering why it was fluttering wierd

Will have to check on mine but almost positive that the hose from the tmic is nearly double the other side of the bov

Oh in that case, I forgot to mention that the hose is not official Subaru, but rather something that fitting from the floor of my shed. Seemed to fit both ends of the BOV.

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]

hahaha maybe it is in back to front then? does it sound like its spooling any harder that it was before you fitted it?

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Simple John.....
The atmo bov was leaking when it should have been sealing under boost (and the bleed was set up without anyone picking this leakage happening), the new bov is sealing properly hence the boost overshoots & you head butt the dash!.....

Wind it down a little and it should stop.....

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^^^ He said he tried that. I was thinkin that.

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