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I know... I being a forum whore....one more question: Is it normal for pressure at IC to drop as you

Old 08-02-2005, 04:02 PM
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Default I know... I being a forum *****....one more question: Is it normal for pressure at IC to drop as you

go from say 4K-6K in 5th or 6th?

Does it drop as the temp rises. Didn't go over about 50 celcius but dropped to about 2200mbar. Started at about 2480. Is this normal or is DV too loose?
Old 08-02-2005, 04:08 PM
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Default Perfectly normal. Controlled by the N75 duty cycle...>>

Which controls the wastegate The N75 gets it's cues from the ECU and the various signals it receives from the sensors. Sounds like your DV is holding fine.
Old 08-02-2005, 04:10 PM
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Okay, that makes sense. So it drops in proportion to the temp increase at intake. Right!?
Old 08-02-2005, 04:13 PM
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Default Not necessarily....>

Temp is just one factor and usually results in timing being pulled back. N75 duty cycle is more related to RPM's and command boost requests..
Old 08-02-2005, 04:21 PM
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So... it is normal for all of them to down boost as you approach redline?
Old 08-02-2005, 04:32 PM
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Default Yup...here's a pretty normal snapshot of the pressures..

<center><img src="http://images6.fotki.com/v75/photos/7/7305/776545/allmodscopy-vi.jpg"></center><p>
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