Jason S asked:
I came from the mustang world and don’t know **** about turbo’s. I know this is the weakest turbo car you can get, but u gotta start somewhere. The HKS SSQV BOV is the **** and I would love to here that sound every day but I heard it was bad for VW and Audi turbo’s and you should get a forge 007 DV. But I love the HKS. It there that much of a difference in lag? (Also combining this with a short ram intake) is the HKS going to hurt my car? This is out there but…can you combine the two???
ok, i will try to break this down as easily as possible.
the job of a bov as you probably know is that it releases built up excess pressure from the turbo.
the problem is that most cars that run boost from the factory-VW/Audi Applications, WRX’s, DSM’s, among others, because they are designed with a turbo from the factory they are designed to retain that boost inside the vacuum system instead of releasing it into the atmosphere.
If you run a normal BOV on a system like this, all of that air will release to that atmosphere when it should still be in the system, and will cause your engine to lean out and will do potential damage to it. An upgraded diverter valve will make you some noise like you probably want but will not cause harm to the engine.
you didn’t buy a weak motor, you just don’t know anything that you’re talking about. learn some things and it won’t seem so weak.
I was in the same situation only a few weeks ago. I ended up purchasing a Forge Hybrid DV/BOV. It allows you to run either full DV, full BOV, or a 70% DV, 30% BOV hybrid mode. I first tried running full BOV and it worked for a short time, then suddenly wouldn’t push past 5psi boost. The ecu probably wasn’t getting enough recirculated air and throwing off the engine. I am currently running in full DV mode, and the car runs fine. I think ECS sells a HKS SSQV kit for our pesky 1.8′s but I have no experience with how our cars handle them.
With the potential for turbo damage, I would recommend just getting a oo7, and combined with an intake, you will hear some whistling from the valve.