Goth etal what do you think of this idea? | FerrariChat
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Goth etal what do you think of this idea?

Discussion in '348/355' started by fatbillybob, Aug 20, 2009.

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  1. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,274
    socal
    #1 fatbillybob, Aug 20, 2009
    So I found this exhaust company that sells the insides of mufflers so you can make your own. When I had my 348 on the road it ran so amazingly clean right to the low side of the limits in california! I bet you could get one of these cars to pass even without cats...well maybe. Or with a little help from NoDoubt have a smog chip just for the smog test.

    Anyway, what would happen if you cut open the cats and removed the insides and replaced them with perforated tube and stainless steel wrap and then rewelded the cats so they looked legal but were really now mufflers? If you could get a 348 or 355 quiet enough just from this you could run straight pipes all the way out the back and loose a huge amount of weight and still look legal and may be not too loud either. In an early 2 can 348 that could be nearly 75lbs iirc.

    What do you think? Does a muffler so close to the headers kill power?
    Could you make a cat/header muffler quiet enough?
     
  2. ferraridriver

    ferraridriver F1 Rookie

    Aug 8, 2002
    4,152
    Bay Area Calif.
    Full Name:
    Dave
    #2 ferraridriver, Aug 20, 2009
    I'd be concerned about the loss of backpressure on the intake flow.

    It may not be a concern, but I wouldn't be supprised if you lost power.
     
  3. gothspeed

    gothspeed F1 World Champ

    May 26, 2006
    10,244
    U.S.A.
    Full Name:
    goth
    #3 gothspeed, Aug 20, 2009
    You wouldn't lose HP from having 'straight through' mufflers as long as the packing was tight ...... if the packing is loose, then it would allow the exhaust flow to 'expand and cool' which would lose velocity, taking some HP with it.

    I am actually working on version II of my 355 exhaust ....... then we can do an 'invitational dyno day' ........... :) ....... I just need my TIG welder back from its 'service refresh' ....... hopefully they should be done with it by tomorrow ....... :D
     

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