Best BPV for correct operation of Guardian Angel

[BuddySpeed3]

Hey guys I tried searching but haven't found a whole lot. I'm having a little bit of a problem here. I just recently installed the Guardian Angel V3, and I have the Forge V1 BPV installed with the red spring (no shims).

I set the settings on the GA to 10 psi to make sure it works. The LED lights up, but the car still hits 21 psi. I tried servicing the BPV, and tried the weakest yellow spring, and it still does not reduce boost.

I proceeded to install the OEM BPV, and it works perfectly! The car never exceeded 10-11 psi. The Forge V1 BPV doesn't seem to cooperate with the GA. I'm wondering if it's just worn out or the piston surface area is just too small for it to be pushed open when the GA triggers. Stratified recommends the Synapse BPV, but I am just curious as to which BPV you guys would recommend that without a doubt works with the GA.

Thanks!

[MS3Shadow]

Blue, two shims?

Sent from my Pixel XL

[BuddySpeed3]

Originally Posted by MS3Shadow Blue, two shims? Sent from my Pixel XL

I tried yellow with two shims and it won't dump boost. I've put the oem bpv back on until I figure out which bpv works well with the GA. I don't wanna start tuning for power until this is sorted lol

[Vansquish]

You don't need a BPV. You can just straight pipe the whole thing . . .

[BuddySpeed3]

Originally Posted by Vansquish You don't need a BPV. You can just straight pipe the whole thing . . .

Haha boost all the time woo hoo! Some diesels are at 0 psi at idle.

[MSMS3]

There is a reason many of us have found that at boost levels up to 20 psi or so, the best bypass valve is the OEM. It is extremely well designed.

[BuddySpeed3]

Originally Posted by MSMS3 There is a reason many of us have found that at boost levels up to 20 psi or so, the best bypass valve is the OEM. It is extremely well designed.

It would seem that way, because it works flawlessly when the GA kicks in. Which Bpv are the Guardian Angel people using?

[g00s3y]

Why not just stick with the OEM if everything is working as is? Stay around 20 psi for the time being, until you can sell the Forge and get something so you can have the boost turned up a bit more reliably, if that's what you are going for.

If you are staying around 20psi or less, and the stocker is doing it's job, no need to change out until it's not working anymore.

[Yatta]

Originally Posted by MSMS3 There is a reason many of us have found that at boost levels up to 20 psi or so, the best bypass valve is the OEM. It is extremely well designed.

The only thing Mazda did wrong on it was to make it a non-serviceable part... the design is quite a bit more complicated than it looks... (so I agree, it is the best) but I still like my Synapse BPV... (off-topic, sorry) for a GA? I agree, use OEM.

and I wouldn’t be surprised to find out that Mazda *intended* it to leak at boost levels above 20...

[BuddySpeed3]

Originally Posted by g00s3y If you are staying around 20psi or less, and the stocker is doing it's job, no need to change out until it's not working anymore.

Originally Posted by Yatta I wouldn’t be surprised to find out that Mazda *intended* it to leak at boost levels above 20...

I went ahead and sealed the oem bpv at the top flange that normally leaks with epoxy to see if it will be able to hold my boost target of 22 psi. The problem is that its very quiet. I also ordered a cobb xle bpv which should hopefully work flawlessly with the GA. Thanks for the input guys!

[MSMS3]

Uh, its supposed to be quiet. if you want armpit fart sounds to impress middle school boys and Honda ricers, look elsewhere. Your aftermarket intake should let you hear it release.

[BuddySpeed3]

I must say the Cobb XLE BPV is a solid piece! I installed it and it works perfectly with the GA.

[MSMS3]

Originally Posted by BuddySpeed3 I must say the Cobb XLE BPV is a solid piece! I installed it and it works perfectly with the GA.

Is it louder than stock? Don't tell us you were really just going for a noisemaker that was GA friendly.

[BuddySpeed3]

Originally Posted by MSMS3 Is it louder than stock? Don't tell us you were really just going for a noisemaker that was GA friendly.

It's louder than stock, but quieter than the Forge V1. Tbh I just wanted something reliable that works with the GA. It seems to work better with the GA than the OEM valve. The Forge piston diameter is way smaller than the Cobb valve and didn't open at all when the GA activated. The Cobb valve also has very good response time. I also like the fact that the sound the Cobb valve makes is simple and to the point. No more swords clashing under the hood!

Although I never had any issues with the Forge V1 other wise.

[torquemaniac]

I use a Forge V.2 with no problem...