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Exhaust header sheilding questions

Discussion in 'Mondial' started by moysiuan, Mar 7, 2022.

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  1. moysiuan

    moysiuan F1 Rookie
    Silver Subscribed

    Nov 1, 2005
    4,192
    Canada
    #1 moysiuan, Mar 7, 2022
    On my 1988 3.2, what is the metal the header heat sheilding is made of, is it aluminum? Was there some sort of fibreglass insulation inside/under the metal cover that degrades over time?

    How did they get these covers on, I presume they were of different pieces welded together. Did any other Ferrari's of the era use this type of heat sheilding, it seems like a very labour intensive part to make. Did the 308's/3.0 Mondials also have the same headers and sheilding?

    Do these headers have thick enough construction that they generally last forever?
     
  2. schelle_pelle

    schelle_pelle Karting

    Oct 22, 2021
    204
    Berlin, Germany
    #2 schelle_pelle, Mar 9, 2022
    Only the Cat-Versions had the additional wrapping/shielding. EU Non-Cat Versions had plain stainless headers.
     
    moysiuan likes this.
  3. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,116
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #3 Rifledriver, Mar 9, 2022
    It was very soft aluminum welded in place with a white fibrous material used as insulation. It was used on all cat equipped cars and on precat air injected cars. It was also used on all turbocharged cars and all TRs.

    The headers were usually not a problem but we did replace some that were driven for extended periods not running well and overheating a pipe or pipes.
     
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