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  1. 13-01-2007 11:20 AM #1
    BlitZ
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    bell mouth exhaust tip?

    Hi all.. need some opinions..

    you reckon it would smooth the sound?
    make it louder (trumpet effect) ?

    or both? or do shit all?



    Assumption: car is piss loud.. and almost unmuffled
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  2. 13-01-2007 01:03 PM #2
    fatboyz39
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    exhaust ...ahhah wtf???
    .............
    Last edited by fatboyz39; 13-01-2007 at 09:49 PM.
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  3. 13-01-2007 01:33 PM #3
    EfiOz
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    Some of the F3 teams, most notably TOMS, used to run "megaphone" exhausts that had a tapered opening. It probably started at about 2 1/4 and ended up at 2 3/4 over a foot or so of length.

    F%$#in' loud, though!!
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  4. 13-01-2007 07:41 PM #4
    BlitZ
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    Quote Originally Posted by fatboyz39 View Post
    exhaust ...ahhah wtf???

    do that for your intake...ill be 'fully sick'
    ahaha

    like the spoon muffler... and some aftermarket ones...

    is there a reason for the tappering
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  5. 13-01-2007 07:42 PM #5
    BlitZ
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    Quote Originally Posted by EfiOz View Post
    Some of the F3 teams, most notably TOMS, used to run "megaphone" exhausts that had a tapered opening. It probably started at about 2 1/4 and ended up at 2 3/4 over a foot or so of length.

    F%$#in' loud, though!!
    very interesting.. however is it muffled at all? or is it str8
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  6. 13-01-2007 09:49 PM #6
    fatboyz39
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    Quote Originally Posted by BlitZ View Post
    ahaha

    like the spoon muffler... and some aftermarket ones...

    is there a reason for the tappering
    didn't mean it that way bro.....
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  7. 14-01-2007 09:26 AM #7
    egSi
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    im pretty sure on a street car the tip has no big impact on exhaust note

    what exhaust do u have atm? spec II or something?
    oh wrd!
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  8. 14-01-2007 12:55 PM #8
    EfiOz
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    Quote Originally Posted by BlitZ View Post
    very interesting.. however is it muffled at all? or is it str8
    No mufflers but we ran straight 25/8 and 23/4 pipes and they were relatively quite (still 94db trackside).
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  9. 14-01-2007 10:01 PM #9
    EG5[KRT]
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    i dunno about teh spoon exhaust but i c on motorbikes they have that same taper ur talking about.. so i think they must do something for noise.. coz i see on alot of yoshimura exhausts on motorbikes.
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  10. 15-01-2007 09:55 AM #10
    BlitZ
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    Quote Originally Posted by egSi View Post
    im pretty sure on a street car the tip has no big impact on exhaust note

    what exhaust do u have atm? spec II or something?
    haahaha GF bought me a welder for christmas...
    I welded myself a straight pipe - no muffler..

    Its deadly loud.. but it also has a crazy bububububububu at about 3k... I want to try and tune it... ehhehe
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  11. 15-01-2007 09:57 AM #11
    BlitZ
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    Quote Originally Posted by EG5[KRT] View Post
    i dunno about teh spoon exhaust but i c on motorbikes they have that same taper ur talking about.. so i think they must do something for noise.. coz i see on alot of yoshimura exhausts on motorbikes.
    yeah .. eheheh thats why i kinda want to try it.. I just want some technical info before fplking out some money to to an exhuasyt shop to open the mounth for me
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