Jump to content
SAU Community

Recommended Posts

Hi, i want to get the sututu sound and i was wondering how to block off my stock bOv.

Just wondering will it effect anything? if i block off my standard Bov. And whats the difference between getting a Blow off valve and blocking the standard one?

and does anyone knoww how to do it?

a guide would be great

thank u guyz :laugh:

Edited by richar
Link to comment
https://www.sau.com.au/forums/topic/277067-blocking-stock-bov-questions/
Share on other sites

well you take off the standard bov, get a flat peice of alloy or type of metal of your choosing cut to the same shape with the holes for the bolts drilled through it, cut some gasket paper and bolt it down in place of the standard bov, then block of the vac line and plumb back line

it will affect your turbo when changing gears, the air will hit the throttle body come back through the compressor blades and slow it down or stall it so you will get more lag when changing gears but you will have a fully sick sounding car......

i have a blocking plate if you want it... i can post it to you for $15.00.

to get the sound your after, you really need a bigger turbo, and a metal intake pipe to the turbo. the air reversion is what makes the noise, which you get with a bigger turbo, the stock rubber pipe cushions it and you can hardly hear it.. which is what its meant to do.

it also makes releasing the throttle, aka on gear changes or after hard accelerating, very very harsh.. especially compared to the standard bov which feels like theres nothing there.

its not worth it in my opinion.. i have only blocked off the bov to run an aftermarket one in a different spot... i kept the original one on for police issues but blocked it.

to get the sound your after, you really need a bigger turbo, and a metal intake pipe to the turbo.

No you don't, works fine with the standard turbo and a pod filter. he

The main factor I believe to become louder is the amount of boost you run.

I have a GT35R with a metal pipe. On 10PSI (running of the wastegate spring) it wasn't loud at all, at 23 PSI, it's a different story! :laugh:

lol bugger me, everyone I know including myself has just cut out a piece of a beer can and used that to block off the stock BOV! works fine 6 months down the track. Also used a bit of liquid gasket to seal it down nicely.

find someone on crutches and steal the little rubber bit from the bottom or go bunnings :laugh:

NA is better :laugh:

Guest
This topic is now closed to further replies.


  • Similar Content

  • Latest Posts

    • Yes to both! Yes to standard ECU and tune, but exhaust is aftermarket. Unsure on brand. Actually have it sitting in at my desk haha! I have to set it up on my laptop but this is a great next step, will do. So I generally try to shift before 4.5K RPM most times. I largely don't do a lot of high-rev driving, but I will take it up to red 1-2x a week max, as I know the occasional "Italian tune-up" is good for these cars.  Oh wow, is this way better than what I'm getting. Does this mean there's a good chance I have an issue?   Thanks for all the info so far guys.
    • Old Son, did you re-use the Holden ABS in the new shell or try a different module?
    • Yeah, nah. I had the actuator rod off it today. The arm will not move at all. Neither out, nor in. Yeah, you'd think so, but I've been thinking about that. Even when the actuator rod fell all the way off at the beginning of this saga, it would build more boost and faster in lower gears than it would in higher gears, and you'd think that that was the opposite of what should happen. But I strongly suspect that there is a thing with the gearing getting the revs to rise faster, that there must be some transient effect with the gas flow rate rising quickly, that you don't get with the more steady state case of the higher gears. Keep in mind - the gate is not shut in either of my weirdnesses. So things are not "normal". We normally think about a turbo spooling up (below the wastegate target) with the gate shut. I have all sorts of mental models running now where the gate is a little bit open, and having it stuck open allowing gas out while it should be going through the turbine has all sorts of weird effects (in these mental models). I'm thinking in the higher gears, the ex mani pressure builds to the point where enough gases spill out the wastegate to just prevent the pressure rising much more at all, or just creeping up, all the whole the revs are increasing and getting closer to the point where a gear shift becomes necessary.
    • Is it possibly wastegate actuator itself is sticking, or even the rod to flapper? Otherwise I reckon things are getting a bit rusty/worn   Also odd it won't boost in 3rd to 5th, but will in 1st, I'd expect the other way around with it slightly open as there's more time on your way to redline for it to spin up
    • Does anyone know ow what these two plugs are for and if they should be unplugged? Just put the dash back together and can't remember if these were plugged in before or unplugged! (Blue and white plugs) 🤦🏽‍♂️
×
×
  • Create New...