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Induction kit and lexus lights - BINNED!!!!

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Old 12 February 2006 | 07:14 PM
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Question Induction kit and lexus lights - BINNED!!!!

Hi Guys.

As above now completed,just taken car for a spin with the original air box fitted. My question is now its running with the oem air filter the external BOV (Blitz type) is now quiet and does'nt WHOOOOSH as loud now . You could hear the BOV when you lift off before you hit full boost and now you only hear it when you hit 7psi of above (max at 17psi)

I've checked all the pipe work and everything is fine. So all you tech heads out there is this normal! The car is pretty much standard (MY94 STi).

Cheers
Old 12 February 2006 | 07:18 PM
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I would have thought you would here it everytime you change gear and are on boost and when you let off while on boost......
Old 12 February 2006 | 07:37 PM
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Originally Posted by Gutmann pug
I would have thought you would here it everytime you change gear and are on boost and when you let off while on boost......
True, just wondered if anyone has gone back to oem filter box and noticed any difference with the BOV. In theory the sound should be the same but in practice its not! Its boosting to the same psi but the BOV is not as noticable
Old 12 February 2006 | 07:38 PM
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Originally Posted by sti69
True, just wondered if anyone has gone back to oem filter box and noticed any difference with the BOV. In theory the sound should be the same but in practice its not! Its boosting to the same psi but the BOV is not as noticable
Bet it sounds more grown up though and thats no bad thing
Old 12 February 2006 | 07:50 PM
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Originally Posted by Gutmann pug
Bet it sounds more grown up though and thats no bad thing
who wants to grow up.?.....
Old 12 February 2006 | 07:53 PM
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anyone who has a DV for more than 6 months generally
Old 12 February 2006 | 08:31 PM
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Yes I noticed exactly the same with a 94WRX a few years back.
I also found it strange.

But recon you are best off with the standard filter as you are less likely to have MAF issues.
Old 12 February 2006 | 09:25 PM
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As far as I knew the whooshing you was hearing before was air being forced back out of the air filter, you wont hear it with the oe item. (Someone please correct me if Im wrong tho!)

Stu
Old 12 February 2006 | 09:40 PM
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Originally Posted by Stu Smith
As far as I knew the whooshing you was hearing before was air being forced back out of the air filter, you wont hear it with the oe item. (Someone please correct me if Im wrong tho!)

Stu
You could be right there mate, thinking about it...although the BOV is venting off i guess some of the boost pressure will back feed into the turbo and vent through the induction kit but with the oem box there's more volume and so will quieting the noise...i think

And i think this is my 100th post - yippeee
Old 13 February 2006 | 09:11 AM
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I dont run a VTA BOV or induction kit on my P1 but on my old 200sx I ran both and got the noises you are getting. I think its as you say........the BOV doesnt clear all the charge air so some gets pushed back out of the air filter. Mine used to do it mainly at lower revs when the dump valve wouldnt be quite open.

Congrats on the 100th post!

Stu
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