Why the 2G bov is worthless [Merged 9-8]

[Yoshi]

mine holds about 14-15 with no problems but thats not gonna be for long getting a greddy type S

 

[Maverick3169]

It will usually start to leak around 15psi.

 

[blkwidow]

Mine leaked to about 13 psi

 

[Maverick3169]

I don't doubt it. Most of the people I've spoken with (who had a 2G DSM), said that the CBV started to leak right at 15psi.
But I've also spoken with a few people that told me it started leaking as soon as 12psi. Either way, the 2G CBV is not something to keep.

 

[1glaserturbo]

Not a lot, around 14-16 lbs. Seeing as the most common upgrade for you 2g guys is to grab a 1g BOV, which uncrushed will hold a little more, crushed, upwards to about 25 lbs I believe



Chris

 

[AJGoldie]

Not a lot, around 14-16 lbs. Seeing as the most common upgrade for you 2g guys is to grab a 1g BOV, which uncrushed will hold a little more, crushed, upwards to about 25 lbs I believe



Chris

21

 

[-DSM2NR-]

the 2g leaks at 15psi

 

[kmoore]

I have a 2g Eclipse GST and i was just wondering why is the 1g BOV so great? Or, why is the 1g better than the 2g one? I was thinking about getting a Greddy type s, would this be a better buy than the 1g? Any answers would be greatly appreciated.

 

[4G63Boosted]

The 2G BOV tends to leak at around 9 or 10 psi, this means you're loosing boost pressure, and power. The 1G BOV can handle about 17-20 psi, and can be modified to hold even more. The Greddy Type S BOV is also a good one. I ran one on my last DSM and was very pleased with it, and I am currently running a modified 1G BOV on my current DSM. You can pick up a 1G BOV much cheaper than the Greddy, but either one you choose you won't be disappointed. You will need an adapter flange to make either one of these BOVs fit your stock intercooler pipe though. They can be picked up from most of the vendors on this site, or used from the classifieds section for a pretty good price.

 

[xveganxcowboyx]

I believe the 2G tends to hold to 13PSI or better, not 9-10. They usually run that high or more boost stock.

But yes, the 1G BOV will hold more boost, will do it cheaply, and can be recirculated.

 

[kmoore]

Thanks guys you just answered my question!

 

[97GSTee]

mine leaks at 11

 

[the_mork]

If its in good condition it will hold stock boost and 1-2psi more, if its in bad condition (most of the time) it will not even hold that consistently. Either buy an adapter or new upper intercooler pipe and a 1g bov or buy a bov from an evo 8 which should fit right into your current upper intercooler pipe and hold a bit more boost. If you plan on more than about 18psi then I suggest getting a new upper intercooler pipe with either a 1g or greddy flange.

A new UICP will give you better airflow and your choice of either a greddy or 1g flange.

A greddy flange must be used with a greddy bov which will usually be a choice that will allow you to run as much boost as you'd like but it is more expensive to buy the bov.

A 1g flange will allow you to run a 1g bov which will allow you to run way more boost than a 2g bov, some 1g bovs can run almost 20psi without modification and with a dodge garage mod (use the search button) can hold about 25psi. This is also a relatively cheap choice at $30-$50 for the bov and if you ever want to turn the boost up higher you can always buy a forge bov with a 1g flange for about the same or a little bit less than a greddy bov and be able to hold just as much boost as the greddy or even a bit more.

The easiest way to tell what your bov leaks at is a boost leak test (search button again) this will not only tell you at what point your bov leaks but also if there are any leaks in your piping which you can then fix for better power and fuel economy.

 

[ricktb]

I'm pretty sure my stock 2g CBV (BOV) leaks EARLY like at 5psi, it leaks almost all the time but I'm pretty sure my 16g turbo can push enough air to raise the boost to 12 psi even while leaking.. seems to me this is a dangerous situation since the turbo is almost always working extra hard to keep the relatively low boost levels.. I think this shitty BOV is responsible for killing my t-25, and possibly my brand new evo 16g for the same reason.

If you think about it the intake is suppose to contain the boost, if the boost leaks then the signal to the wastegate will come late, thus causing the turbo to keep spooling past the usual point to maintain 10-12 psi or whatever yours is set to. upgrade the stock 2g bov if you want to keep your turbo healthy, nevermind keeping your car tuned