Bypass/Blowoff valve thoughts

[djza2u1]

Just spend the money for the turbosmart and you wont regret it.

 

[Abilor]

Are you talking to me? But I want to grab coins! I will investigate this turbosmart of which you speak...

Dude go for the turbosmart! We can compare valves!

 

[Abilor]

Dude, thing is pricy. I dunno. No backfire? For real? Would I want to run this in hybrid mode? I was thinking of getting a hybrid BPV/BOV back in November, and everyone here said I was nuts, go forge. Why the change of heart? What's so keen about the turbosmart?

Convince me to spend...

 

[djza2u1]

First of all you get what you pay for. The BOV/BPV set up that i run has not problems, and i have constantly checked the vacuum/boost with my dashhawk. In fact i hold my peak boost 360rmp longer with the forge and turbosmart, but with the turbosmart i peak 130 rmp earlier.
And it is from Australia, I've never hear or anything bad come out of that country. Except Crocodile Dondee 3

 

[john blutarski]

Gentlemen... I love the Forge for performance and price but I got tired of the sound and I think the TS sounds the best. That's right, I switched it out just because I think it sounds better. As for holding boost, they both performed similar for me.

 

[Abilor]

At the Store of the Blasphemer, Woe Art Thou of Whom We Do Not Speak (SOTBWATOWWDNS), are they basically just painting turbosmarts with their own custom color scheme? Are the seven different versions all turbosmarts? And are they reliable to buy from?

 

[DaleNixon]

Yes they are reliable man.

I'm pretty thrilled with the Forge, I'm just being selfish and wanting to hear a different BPV. You'd definitely want to run it at least hybrid but most likely recirc.

 

[patty AT forge]

People use the two terms interchangeably but they aren't the same. Blow off valve = atmo. Bypass valve = recirc. We make both. You absolutely cannot run a single piston (or diaphragm) bypass valve on a MAF car, there will be a massive vacuum leak at idle and whenever the valve vents.

And for those wanting our valve without the sound... just wait.

 

[Rotus8]

People use the two terms interchangeably but they aren't the same. Blow off valve = atmo. Bypass valve = recirc. We make both. You absolutely cannot run a single piston (or diaphragm) bypass valve on a MAF car, there will be a massive vacuum leak at idle and whenever the valve vents.

And for those wanting our valve without the sound... just wait.

I'ts hard to wait, now you have given a hint. Any more info? I like the performace of the Forge, but the tink sound is a bit weird...

 

[funksilver07]

My Forge BPV performs flawlessly, I have zero issues with the sound. This piece installs in 15 minutes and holds boost. Personally, I don't see the point in spending almost twice the $$$ on other units (as good as they may be) and then run in recirc. mode, whats' the point? You've spent all that extra money to not use the VTA. (shrug) If your tuned for it fine but if not run a Forge, it's a great part.

 

[DaleNixon]

NOOOO!!! Don't take away the mario coin!

 

[SpooledupRacing]

ok.. I id not read it all but here is the difference..

BPV's will push the air back into the compressor keeping the turbo spooled during shifts..

no u wont have full psi between shifts.. but with a bov your compressor will drop normally to 2psi or less (most the time back to hg) and u will have to spool from a stop again..

with a BOV the air pushed back into the compressor will keep the turbine spooled at 4-5 psi during a shift so u dont loose all boost.

I still say bov and get all of the air out of the system so u dont have any back surge on the compressor..

 

[john blutarski]

ok.. I id not read it all but here is the difference..

BPV's will push the air back into the compressor keeping the turbo spooled during shifts..

no u wont have full psi between shifts.. but with a bov your compressor will drop normally to 2psi or less (most the time back to hg) and u will have to spool from a stop again..

with a BOV the air pushed back into the compressor will keep the turbine spooled at 4-5 psi during a shift so u dont loose all boost.

I still say bov and get all of the air out of the system so u dont have any back surge on the compressor..

Dave,

I think you're misunderstanding it a bit. Any air that would help spool up the turbo quicker would need to be routed back to the intake tract pre turbo. This can only be accomplished with a recirculating valve (BPV or hybrid). A BOV blows all that air to atmosphere and has no way of recirculating it. In regard to compressor surge, we're talking about post turbo air backing up against the compressor wheel. This can happen with either a BPV or BOV and is fixed by simply adjusting the spring tension of the BPV/BOV.

 

[Abilor]

I'm very happy with the turbosmart. I spin right up to 16 psi when I mash it, and I hold it very well. I threw down and won my first street race the other day, so it's smiles all around as I rib my boy at work here about it. I love the sound, I've had no backfires, shudders, idle issues, or any other evils associated with BOV. The hybrid truly seems to work as best of both worlds so far. My mileage has improved a bit too, as long as I don't get on her. 32 highway is now 34. Glad I got it. The forge is awesome too though, it was one or the other..

 

[Nokkers3]

I've had the TurboXS Hybrid BoV for about 5 months now and I really like it. It's well constructed and easy to install. It's also not very loud, which some people might like. I haven't used any other BoV/BPV so I can't really compare, but I don't regret buying the TurboXS.

 

[ericm]

And for those wanting our valve without the sound... just wait.

I'd buy a stock appearing non-leaking BPV that didn't make any wierd noises.

 

[J-Villa]

why did this thread get so big? this forum is full of bov/bpv threads. just SEARCH

 

[redwinqs]

I'ts hard to wait, now you have given a hint. Any more info? I like the performace of the Forge, but the tink sound is a bit weird...

+1, anymore info on "waiting"..?

 

[filphil]

I'ts hard to wait, now you have given a hint. Any more info? I like the performace of the Forge, but the tink sound is a bit weird...

Forge is coming out with a new BPV that doesn't have the PING sound and will sound more like a traditional blow off(for lack of a better word) sound.

 

[PCspeed3]

Cobb's should be out in a month or so. The other day when I was down there they said they have all the parts for their BPV, they just have to assemble them when they get some time.