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#1
31-03-2006, 21:34
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Its hard to understand over a forum sometimes mate but my only advice is to check for vacum leaks as this is what it sounds like.
Make sure all your pipes are on tight and split free 
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 Currently 226.4bhp@13psi with a remap to 18psi coming very soon 
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#3
31-03-2006, 23:51
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When the engine is at idle pop the bonnet and cover the dump valve outlets with your hand.If the idle speed picks up or you can feel air leaking then the dump valve is either unsuitable,faulty or needs adjusting?
Generally a dump valve with a plastic inner plate and spring is no good for an s12.
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#4
01-04-2006, 07:34
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Funny that as my Bailey has just started acting funny. At 70 I could not cruise and had to bury the throttle so I disconencted it and problem solved. Just wondering what type to go for next?
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#5
01-04-2006, 10:26
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Adz had a great dump valve when he bought his car. It cost him 120 quid in 3 days doing local driving
 Is the dump valve brand new?
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#6
01-04-2006, 10:56
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 i got this on mine, its ok at the moment, i did have the original standard bailey twin piston dump valve that last about 2 years and then the spring inside snaped, i got a new one as shown above "bailey twin piston EVO" has worked fine since. i made a tee into the pipe from the inlet to the fuel pressure reg. and the actual valve is mounted on the cozzie intercooler. the non EVO ones dont have the little screws around the top as pictured.
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#7
01-04-2006, 17:46
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dump valve
Hi
This is a good site lots of info,the valve i had was a single piston baily no good as it was always venting so ordered a twin piston baily from demon tweeks the guy said the twin piston is the one i require something to do with the air flow meter before the turbo all a bit tec for me  Thanks for all the input Andy
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