Bov stuck open on idle!
#1
Newbie
Thread Starter
Bov stuck open on idle!
Is a tial bov supposed to stay open on idle? Mine seems to stay open. And if u push gas it closes. Is this normal? Should I put a stiffer spring in it?
#2
Evolved Member
#3
Newbie
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#4
EvoM Guru
iTrader: (1)
This is normal.
#5
EvoM Guru
iTrader: (12)
How come cars have different vacuum? What causes the vacuum to change
It's a bit difficult to explain without a boost gauge, but remember that an engine is an air pump. It's just built to withstand a flame front.
As stated before, this is normal. Cars will have different vacuums depending on the engine model. Strong vacuum is a sign of a healthy engine because the rings are sealing well. More aggressive cams with greater overlap can decrease vacuum.
Vacuum is useful for many subsystems in the car, but mainly the brake booster and sucking fumes out of your valve cover. In general, vacuum changes when you put your put on the gas, idle kicks up, or you turn on your AC. Or when the turbo wakes up...
Last edited by Pal215; Aug 4, 2017 at 09:58 PM.
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