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Thread: Trial - put the top airbox pipe back in and see...

  
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    nry's Avatar
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    Trial - put the top airbox pipe back in and see...

    Okies, on Sunday I put the top airbox pipe back in to my Z16XE MK4. I left the bottom pipe out and am still running the Vectra intake pipe.

    Darn me if the engine isn't transformed, smoother and faster throttle response, improved low rev 'power' and coming off the throttle is much smoother too. I will try it a few times further, but my test hill (Greenhead Bank for those who know the area) usually sees my car top out in 5th at a shade under 80mph (road closed for private testing yada yada) yet today it was (for the first time ever) creeping up and above this. It has never managed this in the 142,000 miles I've owned it...

    So, curiousity has the better of me - for those that have done the 'airbox de-restriction' mod, put your top airbox pipe back in and see if you notice any difference?

    Answer the poll and pass any comments in this thread - the pipe is the easiest one to get to as you only need to take the top off the airbox, so not difficult or time consuming to put back in for a while.

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    Bubba's Avatar
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    I have just done this tonight, took it for a quick spin, not sure if it has made any different, will need to drive it for a few days and see how it is, i would say its about the same but only done a quick 20 minute drive with it.

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    i want to try this but the old bit went in the bin

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    I've also have no flat spots anymore...nice and smooth all the way through the rev range.

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    Quote Originally Posted by nry View Post
    the pipe is the easiest one to get to as you only need to take the top off the airbox,
    Not so ... Mines 200 miles away and then I've got 6 bolts to undo to split the airbox














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    Quote Originally Posted by Ffoeg View Post
    Not so ... Mines 200 miles away and then I've got 6 bolts to undo to split the airbox









    You always have to go one better

    Borrow mine if you want!

    Which reminds me...

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    take a guess which i voted for in the pole

    On a more serious note i dont have the air box pipes anymore as they were just taking up room in the garage but i will be keeping an eye out in this thread as it could make for some interesting reading

    AOC top 15 car at PVS 2009 & 2010
    313.7bhp/343Ibft


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    Reminds you?


    Im' worried now

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    might give this a shot tomorow
    Observe the masses and do the opposite

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    I wish you buggers with this sudden mod discovery would've found all this out about 5 months ago before i did it That aside, a few weeks ago would've been nice as that's when i finally threw the airbox pipes out


    Anyway, after you've ran it a while, post back your findings.

    Though that's possibly a bad idea & these could be your best findings - as the longer you run it, the more you'll get used to it & the less you'll notice any change.

    Anyone else having a crack at this feel free to post up your views of the 'results'

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