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Total Newbie With Bov Query

Greenwich-biker
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Greenwich-biker Contributor

Greenwich-biker

Posted
Posted

Hey Guys...

Total newbie here, so pls excuse this dumb question - I wanna fit an aftermarket BOV to my R33 gts-t, so in preparation I blanked off the plumb back hose. This made the engine run very rough, and a fair bit of air hissed from the factory bov outlet on idle. Will this happen when the new bov (GFB basic) is fitted? Was this normal?

Thnx

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https://www.sau.com.au/forums/topic/265398-total-newbie-with-bov-query/
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Jared.r33 Newbie

Jared.r33

Posted
Posted

Hi there, yes that is normal, the stock blow off valve will leak air when driving off boost causing the engine to run roughly when the air return hose is not connected. they're not designed to vent to atmosphere. My car did the same thing but once you fit a aftermarket one it'll run normal again. I wouldn't recomend driving it with the stock blow off valve running vent to atmosphere either mate.

TTT Grand Master

TTT

Posted
Posted

the aftermarket bov will most probably fit in the place of the factory one.

so until you have that ready to fit, unblock all hoses and leave the factory one on there as it is supposed to.

once you have the new bov, remove the stock one.

block off the big return hose.

attach the new bov and attach the small vacuum line to the new bov.

adjust it as required.

keep the stock bov..

you'll want it back soon

blitz r33 Collaborator

blitz r33

Posted
Posted

trust me,your car we stall,probably not straight away but it will.

everyone on here told me it would but i ignored them and stalled at an intersection and nearly got wiped out by a truck.

i don't know if this happens to every R-33 GTS-T but i have to get mine tuned for it.

am i right or wrong guys?

TiTAN Grand Master

TiTAN

Posted
Posted

that's correct. it might not stall all the time but it will stall and when it does you will look like an idiot at the lights/intersection. an aftermarket MAF based ecu can be tuned to cover up the issue or a MAP based ecu which wont care what sort of bov or if you even have a bov on there.

(OO)SKYLINE(OO) Grand Master

(OO)SKYLINE(OO)

Posted
Posted
So true.

Hehe! Yep.

yup, they're right. yet if you manage to boost your car high enough for the stock bov to give in, buy a GTR bov. problem, solved.

True, I know the stock GTR BOV can handle over 300kW if not a bit more with no problems.

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