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Over boost
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<blockquote data-quote="AlucarD" data-source="post: 213315" data-attributes="member: 1703"><p>tkk, </p><p></p><p>Yes, stick to stock Gain to see what happen first. 850c on the EGT looks ok for 1.2bar but I would personally go for 800c since our weather is hot here. But then again. It depends on your tuning. I know that for my car 800c means full boost at 1bar.</p><p></p><p>Regarding boost creep, I googled something from Clud DSM under their FAQ.</p><p></p><p><u>My boost is too strong. Is there a fix?</u></p><p><u>My boost won't stay where I set it - it keeps going up. Is there a fix?</u></p><p>This is called boost creep, and occurs when the turbo is pushing somuch air that the wastegate, even when fully open, cannot dump all of theintake pressure. This results in a continual increasein intake pressure, and is common with upgraded turbos, especially withupgraded downpipes - the exhaust would rather flow through the turbo/exhaustthan the more restrictive wastegate, which spins the turbo ever faster. Cars with this problem can develop mind-blowing (and engine-blowing) intakepressures in a hurry.</p><p></p><p>The general solution to this problem is to port the oxygen sensor housing, turbine housing and/or wastegate to allow themto dump more air. Otherwise minor malfunctions of the wastegate may also exhibit themselves as boost creep. Some people use an external wastegate for better pressure control.</p></blockquote><p></p>
[QUOTE="AlucarD, post: 213315, member: 1703"] tkk, Yes, stick to stock Gain to see what happen first. 850c on the EGT looks ok for 1.2bar but I would personally go for 800c since our weather is hot here. But then again. It depends on your tuning. I know that for my car 800c means full boost at 1bar. Regarding boost creep, I googled something from Clud DSM under their FAQ. [u]My boost is too strong. Is there a fix? My boost won't stay where I set it - it keeps going up. Is there a fix?[/u] This is called boost creep, and occurs when the turbo is pushing somuch air that the wastegate, even when fully open, cannot dump all of theintake pressure. This results in a continual increasein intake pressure, and is common with upgraded turbos, especially withupgraded downpipes - the exhaust would rather flow through the turbo/exhaustthan the more restrictive wastegate, which spins the turbo ever faster. Cars with this problem can develop mind-blowing (and engine-blowing) intakepressures in a hurry. The general solution to this problem is to port the oxygen sensor housing, turbine housing and/or wastegate to allow themto dump more air. Otherwise minor malfunctions of the wastegate may also exhibit themselves as boost creep. Some people use an external wastegate for better pressure control. [/QUOTE]
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