Compressor Surge on s14 sr20

[GSXRJJordan]

Doesn't sound like it's blowing off much at all. Ready for the shocker...

It has nothing to do with your BOV.
(as long as the BOV is blowing off at all, it's working. Note about the SARD: no rubber seals. It's just a metal piston against a metal wall, and gets lubricated by the small amount of oil blown through the hotpipe. On the first boost after a long period of sitting, it'll stick. Once it opens, you're in business.)

Now back to the issue: your vacuum setup. Either you've got your BOV tee'd off on some other vacuum source (like the MBC), or your manual boost controller is absorbing some of the change in pressure. MAKE SURE YOUR BOV HAS IT'S OWN VACUUM SOURCE FROM THE COLDPIPE/INTAKE MANI.

Oh, and one more thing - BB turbos are weaker than journal bearing, not stronger. That doesn't mean you've permanently damaged your S14 BB turbo - as Gabe said, many people run their turbos hard (with compressor surge) for years before it becomes a problem.

Fix your vacuum source, and your problem will go away.

/thread. That's one more Zilvia tech problem solved before breakfast