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B.o.v Vacuuum Line

R33ram

By R33ram,
in General Maintenance

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R33ram Enthusiast

R33ram

Posted
Posted

Hi guys,

just a quick question.

Got some vacuum hose from ebay in silicone blue 5mm from ebay and replaced my 4mm rubber ones just to spice up the look abit.

car was holding boost at 19/20 psi fine.

soon as i put the silicone blue one on from b.o.v to plenum was strugling to hit 14/15.

went back to my normal rubber one and back to normal.

is it 5mm to big or the quality crap of that silicone hose cause it feels real soft compare to my rubber one hard type ones...

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https://www.sau.com.au/forums/topic/409370-bov-vacuuum-line/
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89CAL Grand Master

89CAL

Posted
Posted

sounds like it has a leak somewhere, did you use clamps on either end of the vac line? If not try that, otherwise go buy some good quality vac line. I have turbosmart lines everywhere, some places not even clamped and never have any issues

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