Turbo Nismo

Tial Q ftw!!!!!

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IG: chris___s14

Tantwoforty

Some good information here, thumbs up zilvia

mewantkouki

Hopefully I can save someone $200... The synapse synchronic bov is the biggest piece of shit on the market today. I had one leaked like crazy, it's HUGE, held on by two Allen bolts and a tiny rubber o ring. You cannot run this bov properly on a maf equipped vehicle without recirculating it. Lastly their advertising methods are super sketchy...

The new hks Ssqv isn't that great either, sound sucks and the diaphragm is plastic and overall looks cheaper than the previous version. Nothing bad to say about v2 aside from occasional flutter at high rpm shifting. I'm currently using a forge motorsport bypass valve on my s14 SR and I absolutely love it.

4-20sx

im was running a JGS BOV atmosphere. after letting off throttle, i def backfired like a madd man! a loud ass pop. i think it is best to run recirculated and you wont run as rich!

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"get that nacho out of my face"

usdm180sx

I'm running a 2nd gen hks ssqv recirculated and it runs fine. Nice and quiet and no problems. I had the 1st gen on my s14 and ran it to the atmosphere but I had a map sensor on that setup.

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-Norm!

!Zar!

This is what I am using now, and it works awesome.

Synapse? Fuck all that hype.

Blitz? Those things leak horrible. I've seen wayyyyyy too many shitty ones to ever suggest it to anyone. Matter of fact, Falkon240 has one on his car now and he hates it.

HKS SSQV: I had the older one that was adjustable and it worked awesome. I ran it atmospheric for a while, and then later on recirculated it. Worked awesome either way. Though I have read that because of how it is built, the diaphragm tends to dry rot or something as it gets older? I unno, never happened to me.

Tial is cool. Just big and ugly. Never had trouble when I ran it.

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dreadedfist

In one of Syanpse's BOV videos, they claim that compressor surge is the turbo spinning backwards. That ALONE is reason enough for me not to buy their hype. They also incorrectly set up the Tial BOV in their videos by using the incorrect spring.

In reality, no BOV setup is fine for 99% of the street setups out there. Off throttle surge at low pressures does nothing at all to the turbocharger. And since you're not going to be going WOT all the time, it won't see off throttle surge at higher boost pressures very often. Off throttle surge has never been proven to decrease the life of a turbocharger. The surge you need to worry about is on throttle, on boost surge.

Cars like the Nissan Cefiro with the RB20DET came with no factory valve. They last for hundreds of thousands of KM's.

The aftermarket blow off valve is sold based on hype, using no verifiable data to back up claims about turbo damage from off throttle surge. Either use the OEM valve if the car came with one, or don't use one at all. It's just another part that can leak. And that stupid sounding HKS one you just paid way to much for is just going to vent meter air on an MAF car - Silly.

Deal with it.

teh smithers

I run a SSQV on my SR, vented to the atmosphere. Turbo is a GT28RS. I've had zero issues whatsoever besides the occasional backfire when I shift at low RPM's (simply because it's not recirculated). In the upper RPM'S it holds boost perfectly and vents with zero surge/other undesirables.

!Zar!

You can take out the noise maker on the ssqv.

eff why eyeeeeeeeee

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redline racer510

How bout the new turbosmart that allows you to switch from atmosphere or recirc.

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raz0rbladez909

Just recirc the damn thing, like many have posted there is no point to venting metered air, and if you have good senses can tell it will cause a slight hesitation when you go from recirc to vent.

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2004 Corvette Z06 / 1971 240z

slomar91

No blow off valve for me. Sounds cool, great throttle response. No problems with the stock t25 and no plans on getting one when I put my s15 spec-r on.