Wondering about a BOV? Try this

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Apr 24, 2003 | 09:57 AM

smew

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Wondering about a BOV? Try this

unhook the recirc hose on the stock valve, and plug it. you are now running 100% atomosphere. If you have no problems, go for it. If you run too rich for your liking, hook it back up and forget about the $150 noise maker...

yeah, I have a $150 noise maker... I felt it was worth it. No preformance gains, but definately loud.

Apr 24, 2003 | 11:43 AM

Zoeb2s

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Car Info: E92 M3, E70, F32, E21

Apr 24, 2003 | 12:05 PM

mmboost

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From: Longing for my ol' white '02 WRX :(

Car Info: 2016 Acura RDX ... meh. Um, nice subwoofer?

I like check engine lights, I like check engine lights,
I like check engine lights, Even if my engines's dead.
I like check engine lights, I like check engine lights,
I like check engine lights, But only when they're red.

Apr 25, 2003 | 09:19 AM

smew

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actually, no check engine light for me... I must be lucky.

or perhaps my Vishnu re-flash might have helped...

Apr 25, 2003 | 09:20 AM

smew

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and fortunately, my check engine light is orange...

Apr 25, 2003 | 01:20 PM

DwithBoost

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Yeah, no check engine light here.

Guess luck is on my side!

Apr 27, 2003 | 06:40 AM

DeliciouSpeed

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Now put it back and tell us the difference. It'll actually run better with it on. Running a bov that dumps atmo on the WRX with the stock ECU is no good. Please come back to earth guys.

Apr 28, 2003 | 03:42 PM

Zoeb2s

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I can't believe u guys are actually doing that with the stock valve...

Apr 29, 2003 | 06:04 AM

WMP

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Quote:

Originally posted by DeliciouSpeed
Running a bov that dumps atmo on the WRX with the stock ECU is no good. Please come back to earth guys.

Simple as that folks. Any MAF car will run poorly with a vent-to-atmosphere BOV unless you use a fuel computer to compensate for the rich A/F conditions during purging. Eventually, continuous rich conditions can wash the bore of your cylinders and lead to premature piston ring failure. The poor fuel economy idea is really just heresay, the ECU is still sending the same amount of fuel there's just less air in the mixture hence the overly rich ratio.

And if you must have a vent-to-atmosphere BOV, the HKS SSQV is infact superior to all other aftermarket models. The SSQV is directly designed after the Denso/Toyota OEM valve found on the 3S-GTE. What makes the design superior is the fact that the valve pulls open rather than pushes open so the more you boost, the tighter the valve holds shut. Theoretically, it will never leak.