Too much boost
 

hi m8 my car is set to 1.4 bar and since yesterday its boosting at 1.67 and its spooling up a lot quicker about 3500 revs it hits full boost but it dosent seem to pull as well also when you put your foot down the car judders really bad.

any ideas what could be wrong???

cheers rich

Look for a split or detached pipe, especially at the waste gate actuator but check the pipework generally.
Letting it over boost, no matter how much fun IS A BAD THING

its over boosting but its not pulling as well?

What model/year is it, ie my03 (2003) STI type UK for instance.

its my96 sti v2

shurely that would give off that burning cluch smell?????

If you have an avcr you can adjust the boost duty down a wee bit, that should dropp your peak boost.

I got my 2003 sti mapped by andy f and unknown to me it had a leaky up pipe gasket causing later full boost, when i got this fixed the car was over boosting, problem solved by turning the duty down slightly

If your clutch is slipping the rev counter will move round the dial when you put your foot down but the car will not pick up corresponding speed.