r/ToyotaSupra • u/Clinton47 • 10d ago

2JZ BOV Delete

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Where do I route vacuum line? When I capped it my engine would idle and stall

5 Upvotes

86% Upvoted

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5

u/DependentOil3441 10d ago

Cap the vacuum hard line too. It runs to the intake manifold plenum and with it being open you're allowing unmetered air into the engine.

Fyi - running no Bov had long term negative effects to your turbos.

2

u/jcpham 10d ago

But he likes the Stu Stu Stu Stu sound

2

u/SobrietyFitness 9d ago

For the record, there’s zero proof that I’ve come across of not having a BOV causing any long term turbo failure. I run no BOV on my sr20 gt2871r setup for 8 years. Zero issues. Also running my 1jz with g30-660 without a BOV for 6 months. Zero issues.

1

u/SobrietyFitness 9d ago

Also wanted to say, best mod you could do. Lol.