Boxer cv boot xref | FerrariChat

Boxer cv boot xref

Discussion in 'Boxers/TR/M' started by bjunc, Apr 25, 2025 at 7:48 AM.

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  1. bjunc

    bjunc Formula Junior

    Jun 18, 2023
    407
    Miami, FL
    Full Name:
    Robert
    Hi all,

    Does anyone have first-hand experience using a Porsche / Lobro part for the CV boots on a Boxer? I've purchased boot kits from Maranello Classic Parts and Superformance in the past, and they've both failed prematurely. Looking to go with a Lobro part this time around, hoping the quality will be better.

    As an exercise, I bought another kit from Superformance, and a few Lobro parts that have come up in various xref threads. I then took a few measurements:

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    Lobro 300508 is the P/N that comes up most often, but as you can see, it's a bit different than the Superformance part.

    Thoughts?
     
  2. samsaprunoff

    samsaprunoff F1 Rookie
    Silver Subscribed

    Jun 8, 2004
    4,395
    Edmonton, AB Canada
    Full Name:
    Sam Saprunoff
    Good day Robert,

    I will see if I can dig up where I bought mine and a part number, but I remember that the box did list Porsche's as being one of the manufacturers that the boots could be used on. These boots have lasted around 15 years and only recently noticed that the header heat is affecting their shape. I cannot recall, but have you tried to reduce the area heat temps? I had my headers ceramic coated, but also wrapped the boots with thermal wrap...both of which I am sure extended the boot's life.

    Cheers,

    Sam
     
  3. 4right

    4right F1 Rookie
    Rossa Subscribed

    My set only lasted a very short period of time after an engine out rebuild. Switched to a silicon set that have lasted for the past 5 years so far without issue. You can Google them, there are plenty of options.
     
  4. bjunc

    bjunc Formula Junior

    Jun 18, 2023
    407
    Miami, FL
    Full Name:
    Robert
    I haven't yet done anything in that area to reduce temps. I was considering wrapping the headers in a ceramic fiber "blanket", but I have a few other projects to get through before I start tackling the headers.

    I ended up chickening out on the Lobro boots, and installed the Superformance boot since it was dimensionally the closest to what I measured on the CV.

    I might look into the "aero" or "high-speed" variants for next time.

    https://www.pegasusautoracing.com/productdetails.asp?RecID=5549
    https://www.race-parts.com/gkn-108mm-od-size-15-cv-tripode-joint-fast-boot?gQT=1


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