I changed my boost gauge from a crappy Megan one to an Autometer and i noticed a drop in Vaccum from 20 to 16. However at the same time i noticed the turbo loose from the manifold. Would that space in between the Turbo and the Manifold cause the gauge to read low vaccum or is it a boost leak some where else in the system?
Turbo-Manifold Vaccum question
Re: Turbo-Manifold Vaccum question (Ca_Silvia)
Bump-no one knows if an after turbo boost leak will effect a boost gauge reading.
Re: Turbo-Manifold Vaccum question (Ca_Silvia)
where did you tap into for your boost reading?Ca_Silvia wrote:Bump-no one knows if an after turbo boost leak will effect a boost gauge reading.
Re: Turbo-Manifold Vaccum question (slo)
being that its on the exhaust side and not intake i dnt think itd measure as a loss in vaccum. but it could i guess cause compressor isnt spinning as fast
Re: Turbo-Manifold Vaccum question (slo)
Back of the manifoldslo wrote:
where did you tap into for your boost reading?
Ok well alittle hard work and i answered my own question. This past weekend i changed every single vaccum hose nissan but on the bastard as well as properly remounted the turbo to the manifold. And my boost gauge is still reading low (15-16 at idle) However the car has significantly increased in pull and is much smoother as the revs increase. Im still pretty stumped about why the gauge is still reading low but i still need to check the boost gauge line and if that doesn't do it i will make a leak tester but at least the hard **** is done.
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mmm240
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Re: (Ca_Silvia)
Maybe because
Ca_Silvia wrote:I changed my boost gauge from a crappy Megan one to an Autometer
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float_6969
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Re: (float_6969)
Mine reads about that (15-16) when at idle... but if i'm in motion and coasting it will vac to about 20-21.
my jetta, also 1.8t, vacs about the same between idle and while in motion in neutral.
my jetta, also 1.8t, vacs about the same between idle and while in motion in neutral.
Re: (trevr)
[QUOTE=trevr]Mine reads about that (15-16) when at idle... but if i'm in motion and coasting it will vac to about 20-21.[QUOTE]
Thats exactly the same as mine. But i have to agree that it might be the difference in gauges.
Thats exactly the same as mine. But i have to agree that it might be the difference in gauges.
Re: (Ca_Silvia)
plug your megan gauge back in... see what it says.
Modified by progman at 11:38 AM 3/10/2008
Modified by progman at 11:38 AM 3/10/2008