hey all,
so i posted about this b4, the impeller went into the housing and people seemed to think it was a bearing failure,(which it could very well be), but i was also thinking it could be caused by a possible compressor surge. the charged air having no were to go but push impeller forward into housing seems to make a little sense. let me know wat u guys think, also is there a recommended replacment "bov" for the vortech unit??, i know the stock one is not technically a bov but maybe its worth an upgrade
thnks
jonny




ps-all english teachers keep comments to self

 

well, seeing that its a SC, and that there is no part of the compressor housing that is close enough to destroy the fins that close to the shaft, i dont see how surge had any part. looks like it sucked something up or your intake pipe got sucked in and rounded off all the fins.

either way, the comp cover couldnt touch in those areas of the wheel unless the wheel came off and flew around all crazy inside the housing.

 

yep just got a call from vortech and it was compressor surge, just as i was worried, i guess the stock bov is no good, anybody have a good one for an sc??

 

How can air get behind the wheel and "push it forward"? that makes absolutely no sense at all. the only way the wheel could move forward towards the compressor cover is if the shaft snapped and the wheel came off and just went buck wild in the housing.

looks like something crazy happened, but compressor surge cant get air behind the wheel unless the wheel was loose and was flopping around to begin with. the supplied bov works just fine.

and how did you JUST get call from vortech at 8:30PM in california?

you're leaving out some details here.

 

No details left out, maybe I was a little off with my time I talked to them at around 430 ish, and that is wat they said the problem was, u can call and ask if u want (805) 247-0226, they can give u some more info, I have heard a Lot of mustang/ camero guys say that the stock bov is crap, so maybe I'll just get a diff one to b safe

 

would it be a warranty issue if the bearing had been the culprit?

idk either, what boost were you running? sc compressor surge just sounds iffy, or maybe a VT copout to not have to fix it for free.

either way , ghey.

pick up a bosch dv unit, they are good for many many moons and can hold over 20psi. or pick up a forge DV.

 

I'm running 12 psi, I thought bearing failure at first too, I know some of the people up there and there pretty cool I don't think there screwing me, plus there giving me a whole new sc at cost, the 12 psi pulley voids the warrenty, but surge does make sense especially if I had a better pic or u could see it urself, if the bov fails wat happens?? It's there for a reason, plus when I took it off the gasket had been destroyed

 

this is just nonsense. compressor surge didnt ruin those fins with the shaft still in tact and everything still snug as a bug. it just wont happen.

and IF your bov gasket was "destroyed", you would have been leaking boost and helping it Blow Off.

compressor surge=cop-out.

 

The shaft was way loose, I'm pretty sure something broke, can a surge cause the shaft to break?? If the bov didn't function wat problems occur??

 

The Vortech blow off valve is a good unit. Was your vacuum line attached?

From Vortech:
Maxflow Racing Bypass/Blow-off Valve flows 320 CFM@8 PSIG and features a compact design that is ideal for imports and others with tight engine compartments. These units will retrofit to standard HKS/Greddy style mounting pads and out performs anything its size.


I'm still using mine with out difficulties. I realize I should change mine out for Mondo higher capacity unit but haven't.

Again from Vortech:
High-flow Mondo Valves (550+ CFM@10 PSIG) are recommended for applications creating more than 12 PSIG and are mandatory for any system using a cog drive belt. These units can be adaptable to all types of supercharged and turbocharged installations, mounted at any angle.

They also have a new even greater capacity bov:
The billet aluminum bv57 Bypass Valve flows 1300 CFM@10 PSIG. It features a large rolling diaphragm configuration with –4 AN signal hose connection and dual filtered vents that allow for quick valve response. The valve head attachment method provides valve articulation for perfect sealing to the mechanically retained valve seal.