UICP + 1G BOV - What should I know?

[Silver71]

I'm planning to run a 1G BOV in my setup. My car is stock right now. My main question is, what should I be aware of when I am putting the Dejon UICP on my 2G flanged for 1G BOV with a 1G BOV? Is there any settings I need to change? Can I do this without tuning with ECMLink? Am I going to have to swap out the spring in the BOV? Or can I simply bolt these items on and walk away?

 

[idkiliketurbos]

You just remove your old parts, install the new, and you are done. All it really is doing is helping you hold in the boost you are supposed to be seeing. The uicp will help with airflow a tad since the stock piece is designed poorly.

 

[4Lurker4]

It's just bolt on mods, so take off the old and put in the new. Although I'd do a boost leak test after to make sure you don't have leaks in the process.

 

[c2ypt1c]

Yup, bolt it on and go. Just remember to recirculate it. If you need a UICP pipe flanged for a 1g bov, pm me.

 

[Silver71]

Thanks all. I saw a thread regarding tweaking BOVs, and something about 2G idle being lower than 1G or vice-versa, and something about leaking due to this.

One step further, when I get my Hallman Pro MBC installed, would it then be as simple as turning up the boost a little? Aside from getting gauges to monitor things, etc. Is that step just as straightforward and bolt-on? Or would that step require anything additional?

 

[c2ypt1c]

Thanks all. I saw a thread regarding tweaking BOVs, and something about 2G idle being lower than 1G or vice-versa, and something about leaking due to this.

The 2g bov typically leaks around 15psi, give or take.

One step further, when I get my Hallman Pro MBC installed, would it then be as simple as turning up the boost a little? Aside from getting gauges to monitor things, etc. Is that step just as straightforward and bolt-on? Or would that step require anything additional?

I'm going to relay my personal experience real quick, just to stress the importance of getting a boost gauge.

Back when I first bought my dsm (in 2007) and upgraded my bov, I immediately experienced a boost spike to around 25psi on my t25. Prior to me changing the bov, boost would hold solid at 15psi. This was because my stock 2g bov was leaking. If I didn't have a boost gauge I probably would have blown the turbo and damaged the engine. It turned out to be a faulty wastegate actuator...moral of the story, don't neglect something as simple as a boost gauge.

Anyway, boost controllers are very straight forward. Just like a bov, put 'em in and go. Just make sure you install it properly.

 

[Silver71]

The 2g bov typically leaks around 15psi, give or take.



I'm going to relay my personal experience real quick, just to stress the importance of getting a boost gauge.

Back when I first bought my dsm (in 2007) and upgraded my bov, I immediately experienced a boost spike to around 25psi on my t25. Prior to me changing the bov, boost would hold solid at 15psi. This was because my stock 2g bov was leaking. If I didn't have a boost gauge I probably would have blown the turbo and damaged the engine. It turned out to be a faulty wastegate actuator...moral of the story, don't neglect something as simple as a boost gauge.

Anyway, boost controllers are very straight forward. Just like a bov, put 'em in and go. Just make sure you install it properly.

I'm a little confused as to how this would happen. First, is the stock 2G BOV DESIGNED to leak at 15psi for protection? Or do they leak as they age and wear out? I thought stock boost was set up at less than 10psi, so why would a stock car ever spike up to 25psi just by swapping out a BOV? Unless the stock BOV is supposed to leak by design at higher psi for protection...

Just pondering.

 

[lil corb]

I'm a little confused as to how this would happen. First, is the stock 2G BOV DESIGNED to leak at 15psi for protection? Or do they leak as they age and wear out? I thought stock boost was set up at less than 10psi, so why would a stock car ever spike up to 25psi just by swapping out a BOV? Unless the stock BOV is supposed to leak by design at higher psi for protection...

Just pondering.

It sounds like his wastegate actuator was bad from the beginning and his BOV leaked at the same time masking the wastegate problem. When he fixed the BOV problem the wastegate problem jumped out from the closest.

I agree on having a boost gauge, always has been my first mod on all my turbo cars. Besides watching boost, seeing if you are vacuuming normal is great info as well. (boost leaks at idle, cam timing issue, etc)

 

[zachakagoat]

Of you are interested in just being able to up the boost while keeping the BOV working you can try out modifying the stock BOV which I document in my build thread for about $1.50 http://www.dsmtuners.com/forums/dsm...tterly-stock-sleeper-shock.html#post153161955

You can then save your money as you wait for a full FMIC which you can pick up for just a bit more than the UICP and BOV you are looking at, VRSF has their kit on sale for $310 shipped right now. I never noticed much from just a new UICP and BOV alone so you may be disappointed....