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whoosh noise without a bov? - n/a problem 

 

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 Post subject: whoosh noise without a bov? - n/a problem
Posted: Sat Jun 07, 2008 9:46 am 
Getting Side Ways
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G'day fellas,

I can normally figure out my own car problems but this one has me stumped.
when i change gear i hear a surge of air venting out somewhere under my bonnet, i can not pin point the problem area but it's getting more noticeable.
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Posted: Sat Jun 07, 2008 10:17 am 
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yeah i get that if i wind out first and shift hard right before it hits the limiter.

Got me stumped to? Sorry couldnt help
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Posted: Sat Jun 07, 2008 10:28 am 
Getting Side Ways
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inlet manifold leak?

 

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Posted: Sat Jun 07, 2008 2:23 pm 
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^Hope not, i will go check soon.

It only happens on cold starts, mainly around 5 in the morning.

Cheers guys.
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Posted: Sat Jun 07, 2008 2:43 pm 
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got extractors?

i had the same sound between 3000 and 4000rpm.
it was a crack in my extractors
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Posted: Sat Jun 07, 2008 2:56 pm 
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nah only a 2.5" redback.

The whoosh is there at any revs and it doesn't get louder.
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Posted: Sat Jun 07, 2008 10:54 pm 
Parts Gopher
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aftermarket airfilter maybe?

 

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Posted: Sun Jun 08, 2008 10:38 am 
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cracked/split intake pipe?? like so many taxi intakes...(but thats usualy due to lpg back fires)..

 

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Posted: Sun Jun 08, 2008 11:25 am 
Parts Gopher
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just get a turbo and bov to fix it, the noise will soon be unnoticable
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Posted: Sun Jun 08, 2008 12:19 pm 
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^haha, the worst part is it's loud and sounds like one of those ebay pos n/a bov

I don't use after market filters, the paper ones work great with a larger snorkel.

I just went out and had a look and i couldn't hear anything as of yet.

I checked as much of my intake i could in the wet and it seems fine, she is still sucking hard from the mouth.

My theory is that the radiator cap is releasing excess pressure as the cap is on it's way out?

* I just had a look at my clutch cable (3 months old) and she sits fairly tight and is rubbing near the extractors, this isn't normal as far as my old clutch cable is concerned, is anyone else's sitting close and tight? *
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