Turbo and Brake Vacuum Servo

Discuss general engine, turbo and supercharger conversions in this section

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pilt
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Post Sat Jan 19, 2008 1:59 am

Hi,

Was just looking at my stock 325 engine and thinking about how I am going to do the turbo setup and was wondering about the Vacum Servo and Boost!
It looks like there is a one way valve in the line to the servo to stop positive pressure but was wondering if it will hold up under boost! :eek:

Has anyone had to change it?

Cheers

Dan
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Gunni
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Post Sat Jan 19, 2008 9:00 am

it´s fine
With great challenges comes great engineering.

Gunni
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Ant
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Post Sat Jan 19, 2008 2:27 pm

same as that Gunni

no issues as long as the nrv is in good order, cheap part to replace if you're worried dude.
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hoshy
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Post Wed Mar 12, 2008 4:03 pm

Do these ever see pos pressure in NA? Snap shut of throttle for example?
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Gunni
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Post Wed Mar 12, 2008 4:53 pm

no, because there is a non return valve, it can only take pressure away from the vacuum booster not put any in.
With great challenges comes great engineering.

Gunni
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hoshy
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Post Thu Mar 13, 2008 1:16 am

I meant was there ever a situation where an NA engine create positive manifold pressure. Not that the brake system feeds the intake - although, hmm. That could be cool. Pump the brake to make yourself go faster :)
E46 M3 CSL but dreaming of another E30.