QV ignition caps and rotors | FerrariChat
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QV ignition caps and rotors

Discussion in '308/328' started by mixedgas, Jan 24, 2025.

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  1. mixedgas

    mixedgas Formula Junior
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    Apr 23, 2019
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    Ramona, CA
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    Mike
    #1 mixedgas, Jan 24, 2025
    Hi there, I picked up a pair of ignition caps and rotors for my 85 QV euro from superformance. They are not of the quality that the original parts are (OEM were Magniti Marelli I think). I'm considering sourcing a pair of caps and rotors from Marenello Classic but thought I'd see if anyone has solved this (i.e. best approach to caps / rotors)? Caps seem like they could be workable - I had to drill to deepen the holes for ignition wires, and use the old screws (the new screws were not sharp enough to pierce the ignition wires). One of the rotors didn't even have the center conductor... Thanks for your thoughts.
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  2. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    John Kreskovsky
    #2 johnk..., Jan 25, 2025
    I'd contact them about the rotor. They will likely send you a replacement. I've bought rotors from them and they were fine. FYI, that center piece is not a conductor, it's a spring.
     
    mixedgas likes this.
  3. Sergio Tavares

    Sergio Tavares Formula 3

    Nov 15, 2018
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    Sergio Tavares
    #3 Sergio Tavares, Jan 25, 2025
    There is no Marelli marks, this is repro, please take care
    Tom Yang made a video about the distributor cap was blank on top where marked Marelli originally and he said the copy dimensions were too tight. I believe this is may be the mold shrinkage effect from casting reproductions.
    Take care and only use original parts
     
    mixedgas likes this.
  4. moysiuan

    moysiuan F1 Rookie
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    Nov 1, 2005
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    #4 moysiuan, Jan 25, 2025
    Magnetti Marelli caps have not been made by them for some time. Some NOS are still out there, but caps are now reproductions. I think someone bought the tooling, but I have no idea who the current manufacturer actually is.

    Marelli itself was acquired and merged into a Japanese firm, in turn now owned by private equity firm KKR.
     
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  5. ragtop1

    ragtop1 F1 Veteran
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    Larry Warren
    #5 ragtop1, Jan 27, 2025
    What diameter spark plug wire are you using? I believe the original is 7mm.
     
  6. mixedgas

    mixedgas Formula Junior
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    Apr 23, 2019
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    Mike
    #6 mixedgas, Jan 27, 2025
    I bought a full set from Superformance but I'm unsure the diameter. It fit just fine into the cap but the hole wasn't 'deep' enough.
     
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