It's actually been a while since we had a BOV thread!
This is a discussion on "The BIG BOV thread" (Where all bov question threads get merged) within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; It's actually been a while since we had a BOV thread!...
Yea we've been overdue.........Originally Posted by Trainrex
PSM Bugeye..Cobb Stage 2
I learned something new. I am a VW guy and know the 1.8T motor like the back of my hand and know they didn't like the BOV's at all. they were strictly diverter valves, is that what you guys usually use? like a recirculating valve?
Yup. The factory bypass valve is rock solid up until 19-20psi, and works flawlessly.Originally Posted by DragonEye
so, say you dont want to go with a BOV after the 20PSI what do you go with? in VW's they usually use an aluminum bypass valve... but i dont know how the setup is otherwise.Originally Posted by Trainrex
on the 240SX SR20DET, i used a turbo XS BOV in it and yea it ran rich, but it was needed because of the way i had the motor installed.
After 20 psi you will need to go with an aftermarket unit. A recirculating unit is ideal.Originally Posted by DragonEye
Originally Posted by Trainrex
I was against the use of an aftermarket BOV as well, but recently found the HKS SSQV at a price that I couldn't turn down.
I just installed it last night, in about 5 minutes, and my car runs NO different than it did before (i.e. no performance loss as some people indicate WILL happen)...the blow-off sound isn't annoying either.
I'm running 89 octane and I can't tell a difference.
all depends on how much boost you are running, how fast you let off the gas, and so on...Originally Posted by REXtard04
i guess i just heard it too much... the nice thing about those though is that you can still recirculate them, but yes they are a kick but design, very solid
You may not feel a difference while driving, but you'll be running way rich between shifts, and if you have a catted uppipe......then :
and if you have no cats, you'll most likley be shooting flames between shifts(i don't think the po-po will take to kindly to this)Originally Posted by Kush
I want my subie back.
my two nutsOriginally Posted by Trainrex
[image deleted by Trainrex]
ScoobyDMC #009 - making dirty jokes since before you were making dirty diapers.
Originally Posted by Blarg