355 Subframe | Page 2 | FerrariChat

355 Subframe

Discussion in '348/355' started by drbob101, Dec 3, 2014.

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  1. mseals

    mseals Two Time F1 World Champ Lifetime Rossa Owner

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    The frame I have is PN 64973300

    Mike
     
    mseals, Dec 3, 2014
    #26
  2. Dave rocks

    Dave rocks F1 World Champ BANNED

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    Hey Mike, we were talking cross members, not the entire frame.
     
    Dave rocks, Dec 3, 2014
    #27
  3. mseals

    mseals Two Time F1 World Champ Lifetime Rossa Owner

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    Last edited by a moderator: Sep 7, 2017
    mseals, Dec 3, 2014
    #28
  4. mseals

    mseals Two Time F1 World Champ Lifetime Rossa Owner

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    Ah so...!

    Nevermind!

    :D
     
    mseals, Dec 3, 2014
    #29
  5. SoCal1

    SoCal1 F1 Veteran Owner

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    Serious, whats the difference?
     
    SoCal1, Dec 3, 2014
    #30
  6. drbob101

    drbob101 F1 Rookie Owner Silver Subscribed

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    Just on appearances it appears to me to be heavier gauge steel.
     
    drbob101, Dec 3, 2014
    #31
  7. Dave rocks

    Dave rocks F1 World Champ BANNED

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    I don't know, Tim. But if they have different P/N's, they are different in some way....
     
    Dave rocks, Dec 3, 2014
    #32
  8. SoCal1

    SoCal1 F1 Veteran Owner

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    May be for a clearance issue or something real silly like no tabs for the ebrake :)
     
    SoCal1, Dec 3, 2014
    #33
    Zamboniman308 likes this.
  9. ShineKen

    ShineKen Two Time F1 World Champ Silver Subscribed

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    Last edited by a moderator: Sep 7, 2017
    ShineKen, Dec 11, 2014
    #34
  10. ShineKen

    ShineKen Two Time F1 World Champ Silver Subscribed

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    Last edited by a moderator: Sep 7, 2017
    ShineKen, Dec 11, 2014
    #35
  11. SoCal1

    SoCal1 F1 Veteran Owner

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    Some serious pocketing going on there

    Well who makes it?
     
    SoCal1, Dec 11, 2014
    #36
  12. ShineKen

    ShineKen Two Time F1 World Champ Silver Subscribed

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    I don't know who makes it. It was posted on one of the Japanese blogs. I am going to Japan for Tokyo Auto Salon Jan 8th. I'll ask some of the shops. I didn't know the product existed until the blogger posted it.
     
    ShineKen, Dec 11, 2014
    #37
  13. F1moving

    F1moving Formula Junior BANNED

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    Mine has yellow showing through a few scratches as well. Interesting.
     
    F1moving, Dec 11, 2014
    #38
  14. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    Last edited by a moderator: Sep 7, 2017
    308 GTB, Dec 11, 2014
    #39
    ShineKen likes this.
  15. johnk...

    johnk... F1 World Champ Owner

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    Maybe to protect the bottom of the engine/trans from being what bottoms out over curbs? Obviously, also stiffer
     
    johnk..., Dec 11, 2014
    #40
  16. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    Right, John...
    .
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    Last edited by a moderator: Sep 7, 2017
    308 GTB, Dec 12, 2014
    #41
  17. 4rePhill

    4rePhill F1 Veteran

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    Despite all the talk of how thin the metal is that the cross member is made of, they only really have issues due to incorrect usage, i.e. being used to jack the car up by placing a jack in the middle of them.

    They were never designed for this purpose on the road cars and do not have a reputation for failing from doing their original designed job of adding rigidity to the sub-frame.

    On Challenge race cars, I doubt that the thicker version adds that much additional rigidity, but what it does allow is for a single jack to be used to lift the car in the heat of a race when necessary.

    And let's be totally honest here, cars that are running with bent cross members (355's and 348's), do not suddenly become wild handling, uncontrollable cars do they? - So they're not Mega-critical to the structure (I wouldn't advise running a car without one though!).
     
    4rePhill, Dec 12, 2014
    #42
    308 GTB likes this.
  18. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    Thank-you for that "Like," Ken.

    Yes, John. The front and rear Challenge cross members are stiffer than stock with their triangular cross-sectional welded additions...


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    They certainly provided a lot of protection for the bottom of the engine and transmission when Challenge cars ran over curbings when they raced...




    1:58 - 2:06

    :)
     
    308 GTB, Oct 20, 2022
    #43
  19. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    Well put, Phill.
     
    308 GTB, Oct 20, 2022
    #44
  20. GTO Joe

    GTO Joe Formula 3 Silver Subscribed

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    Looks like just a piece of angle iron welded to the cross member and yes, good for what you described.:)
     
    GTO Joe, Oct 20, 2022
    #45
    308 GTB likes this.
  21. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    You described it well, Joe. An angle iron welded to the cross member. The picture I posted eight years ago shows that the cross members are the lowest points on my car's chassis.

    It would be a simple matter to convert a stock cross member to a Challenge cross member.
     
    308 GTB, Oct 20, 2022
    #46
  22. ShineKen

    ShineKen Two Time F1 World Champ Silver Subscribed

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    I was trying to find pics of the challenge cross members to see what the actual differences were. You might be the only one who's posted clear pics on Fchat. I never knew challenge had different ones. You learn something new everyday with these cars :).
     
    ShineKen, Oct 20, 2022
    #47
  23. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    308 GTB, Oct 20, 2022
    #48
    ShineKen likes this.
  24. 308 GTB

    308 GTB F1 World Champ Rossa Subscribed

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    To stray a bit from this thread, the lowest point on my 550 is the front section of the undertray where the vent louvers reside...


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    Road and track mileage took their toll on that undertray section and several louvers were cracked and missing. Rather than getting a new undertray, I had my shop fabricate this screen to do the job of engine bay venting...


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    It gets scraped every so often but there are no louvers to break off. :)

    The NACA duct provides cooling of the cam belts via ducting. That's stock on the Maranello.
     
    308 GTB, Oct 20, 2022
    #49
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