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Venting The Stock Bov


Dillz

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  • Member
  • Member For: 16y 8m 21d
  • Gender: Male
  • Location: leeming, PERTH
I did this mod tuesday n sounds good I also have a aftermarket bov sittin there but dont use it. it get the flutter but not like the sound of xr2dy4 which was the more sound I was goin for but I can hear when had bonnet up a small suckin noise coming from the t-peice I think the vac line might have a small hole it in. also when I hit it hard (car is stock) at 4 1/2 over rpm I dont get the tutututu its more like the sounds of a phssst but a quick 2 drops any theories??

take off your bov, block the holes up then try it mate

also he's running 13psi as opposed to the stock 6psi so his will always be louder.

Edited by sensoryamusia
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  • Member For: 17y 1m 25d
  • Gender: Male
  • Location: Carindale, Brisbane
wow just had the weirdest thing happen. took off the cross over to change the vac line the first line had on was abit long so I cut it down to fit nicely took for a run n now I dont even get a tutututu it just sounds like a aftermarket bov WTF!!!

that's really random - but still that's lucky as mate, I bought a turbosmart kompact boc and all it does it give the tutututututu sound (which I hate) so I'll need to change it over to get the pssst sound I want when I can be stuffed. post up an audio/video link for it for the rest of us.

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  • Mmmmm......BOOST
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  • Member For: 17y 7m 4d
  • Gender: Male
  • Location: central coast
I did this mod tuesday n sounds good I also have a aftermarket bov sittin there but dont use it. it get the flutter but not like the sound of xr2dy4 which was the more sound I was goin for but I can hear when had bonnet up a small suckin noise coming from the t-peice I think the vac line might have a small hole it in. also when I hit it hard (car is stock) at 4 1/2 over rpm I dont get the tutututu its more like the sounds of a phssst but a quick 2 drops any theories??

I might be wrong on this ,but from my experience the stock bov allows some air to run in the reverse direction at idle and under very light throttle application ,that might be the air noise you can hear

that's why I don't like not running the bov have done it a couple of times and I really think it does affect the just off idle performance of the car

and try replacing the crappy vacumm hose with a piece of good quality fuel hose the same inside dia. the fuel hose is reinforced so wont colapse under vacumm ,my bov seemed to work twice as good when I changed to this hose

Edited by our06t
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  • Member For: 16y 7m 24d
  • Location: Wollongong

ta mate I might get some fuel line. I know that the vac line I got is but rubber doesnt have the threaded stuff in it. I just changed the bov back over to stock and got my other lil mod with the 4cm long vac line with bolt in the top on plug onto the t-peice. gives the tutututu sound.

Edited by robbo k
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  • Member
  • Member For: 16y 7m 15d
  • Gender: Male

Did this tonight on mine, Just abit worried about the really small pipe that comes of the end of the bov. Had to jam the BOV back in so I'm hoping the small hose is still connected properly and not kinked.

Should Ibe worried about this? going to drive to work tomorrow before I pull crossmember off and have a good look

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  • Member For: 17y 8m 21d
  • Gender: Male
  • Location: Slip Sliding Away

You talking about the chair leg tips???

If so then Bunnings sell them. 4 for $4ish. Get the rubber ones not the plastic.

Do yourself a favor and buy some screw clamps from Supercrap so you can easily change them when you get sick of the sound :)

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  • Member For: 17y 2m 18d
  • Gender: Male

What's the size of the vaccum line from the BOV guys!?!!!? Really wanna redo my BOV mod and mount the filter/bov over the cross over. Only way I can do this is to get a longer vaccum line and need it's size. Anyone?!?!!!?

Did this tonight on mine, Just abit worried about the really small pipe that comes of the end of the bov. Had to jam the BOV back in so I'm hoping the small hose is still connected properly and not kinked.

Should Ibe worried about this? going to drive to work tomorrow before I pull crossmember off and have a good look

Mine is massively bent too :tonguepoke:

However, I knew it was going to be bent, and before putting it back on, I tried to almost turn fold it in half, and even half folded, air still goes through really easily.

Edited by RSK
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