Opinions on HKS Super SQV
 

im looking at buying one to replace the POS ebay unit. 5-8psi 2.5 inch IC pipe

I'm a big fan. Just remove the 'whistle tip' and they don't sound like some ricer bullshit while doing their thing.

They also sell a recirc fitting which you should pick up since I see you are still on a stock ECU.

Oh, and grab something similar to this to make install painless:
http://cgi.ebay.com/ebaymotors/2-5-S...ht_3227wt_1178

thanks for the link that was my next look around. and my car runs fine with the bov vented to atmosphere. im going to have a megasquirt by spring
do you have a youtube video sound clip

I like mine but get a little compressor surge at the low boost levels 1-2psi. overall I would definitely buy one again

I like the Synchronic valves a lot better. Plus you can get one in a bypass valve style housing, and not have a big stupid ricer wart hanging off your intercooler piping.

I bought one a month back however still have to hook it up. Ebay one... The black colored ones are shitty. Paint is the primary cause why they leak. Also there wasnt a single smudge of grease in there.

I ended up sanding it a bit to make the surfaces flat (no more paint) and added grease everywhere. Also the screws that hold the dark vader helmet on.. They leak like shit since they are drilled all the way through so i used some rtv sealer to seal them up on assembly.

Currently the bov does not leak however i still wonder how it will vent.

The reason why i bought it was to see how it works since the pics tend to miss some very important details.. the middle chamber is connected to the intake manifold chamber via very tiny holes.

my friend has one on his sr20 and it does get compressor surge at low boost but other than that its a good bov for what its worth.

OK so I've finally hooked my wastegate back up so for the first time i got to hear the ebay ssqv i bought few months back...
I get a little of surge however its not the turkey sound surge you hear with no bov.

Long story short i did few modifications to the ebay one and its not leaking any more.

First thing there wasnt a single drop of grease on there...

https://www.miataturbo.net/attachmen...ine=1318631980

https://www.miataturbo.net/attachmen...ine=1318631980

It was also leaking a shit load in the front where the Darth Vader helmet bolts on.

I took fine paper on the edge of the sharp counter and sanded the face smooth and even.

https://www.miataturbo.net/attachmen...ine=1318631980

I also did the bottom where it mounts to the bottom plate.

https://www.miataturbo.net/attachmen...ine=1318631980

The holes are tapped all the way through and it was leaking through the holes so i used gasket maker rtv to seal them up.

https://www.miataturbo.net/attachmen...ine=1318631980

All done. Not a single leak.

https://www.miataturbo.net/attachmen...ine=1318631980

For the 30-40 bucks i spent on it...i'll buy it again. This replaced a Forge VTA BOV.

I bought the same black one to replace a genuine 1st gen HKS.... Spent a lot of time messing with it, I ended up cutting the spring some, sanding the shaft, sanding the mating surfaces and greasing it. I think it should be working fine now, as far as I can tell by making it actuate w/ a mityvac just haven't had time or motivation to try it again. It was compressor surge city as shipped.

Even if it does work better now, it's only a matter of time until the diaphragm tears and your right back where you started (beat down junk). Spending a dollar on nice parts now will save you a lot of heart ache later.

Tial q is by far the highest quality BOV on the market, Next in line is the precision BOV, just my opinion.

I currently use a forge atmospheric. Absolutely love it, nice woosh sound and its a quality unit.

Agreed.

Or you could just throw your current pos away, plug the hole, and not waste any money on it.

Thats what i was using and switched to the ssqv...

Any reason for the switch?

im glad i ditched that pos the ebay piece. i love the sspv, nice sound, decently loud, doesn't need to see boost to make noise i think anything around +or- 10 vac. +1 for messing with the kids with "fast Honda's". it wouldn't bother me if in 5+ years im replacing it, itll probably be a different setup by then anyway.

No leaks while in vacuum if spring is too soft.
Doesn't rely on intake pressure to open the plastic valve...Too soft of spring will cause leak at cruise, too strong of a spring will not allow it to open at low boost.
The ssqv design takes the current manifold pressure as a base instead of the pressure before the TB.
Dual valves.. 1 small for small intake manifold pressure changes, 1 big for big pressure changes.
At last it sounds better than a compressor sound.

The only reason why i dont like the ssqv is that rubber piece however the forge has the rubber o rings that rip so there's some maintenance there too.

i am using a ssqv with the purple insert. sounds great. havent had leaks or surging. i had this same valve on a different car, used for over 3 combined years now and havent done maintenance on it...still works flawless. i bought o ring when i took it off the other flange and put it on the 2.5 hks flange pipe i got on ebay.

Why buy an SSQV when you can get a Tial?