Needle on boost gauge flickering

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09-24-2007, 01:56 PM

O.T

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Needle on boost gauge flickering

hey guys does anyone know what can cause the needle on an autometer boost gauge to flicker.
I'm trying to measure exhaust pressure, I have 4' of copper line and the remaining line to the gauge is plastic.

My boost gauge measuring boost works perfect.

Any help would be appreciated.
onetun

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09-24-2007, 02:18 PM

03dodgeoffroad1

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i dont know for a fact but could it be the cylinder pulse???

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09-24-2007, 03:26 PM

WUnderwood

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some of them do flicker, sometimes it is the gauge or the line is pinched

Mine does flicker

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09-24-2007, 03:40 PM

O.T

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Quote:

Originally Posted by WUnderwood

some of them do flicker, sometimes it is the gauge or the line is pinched

Mine does flicker

So is the reading accurate?

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09-24-2007, 03:48 PM

crownsey54

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i flicker only when am in 4th gear wot.

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09-24-2007, 03:55 PM

TonyB

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Are you trying to read exhaust pressure in the exhaust manifold, before the turbo inlet? If so, I would expect some pulsing. Never measured it, so I don't know exactly what it would look like.

Tony