GT350R Race Car Build

Discussion in 'Road Racing Forum' started by Black Boss, Dec 2, 2016.

  1. Black Boss

    Black Boss TMO Addict

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    Fabrication of OilCooler mounts and test fitment completed. Modified the Radiator support, welding on two vertical supports, and bent up some 2" Aluminum stock for the lower mounts:

    IMG_4233.jpg

    Drilled front lower frame rail and installed 2 rivnuts to attach lower mounts:

    IMG_4234.JPG
     
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  2. ArizonaBOSS

    ArizonaBOSS Because racecar. Moderator

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    Rivnuts are my favorite fastener.

    Is this going to go in front of the radiator or off to the side? The cooler looks sizeable--another 948?
     
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  3. Black Boss

    Black Boss TMO Addict

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    Mine too!! The Oil Cooler is going in front of the radiator. Another 948!
     
    Last edited: Jul 11, 2017
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  4. VoodooBoss

    VoodooBoss Rick Moderator

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    Are you going to run the stock trans and diff coolers? My experience in hot weather is the trans cooler gets the job done but the diff runs hot.
     
  5. Black Boss

    Black Boss TMO Addict

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    Yes -- With the carbon canister removed I'm hoping the Diff cooler get's more airflow. If not the vacant Engine Oil cooler slot will get re-purposed for Diff cooling!
     
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  6. ChrisM

    ChrisM TMO Intermediate

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    Today I learned that rivnuts are a thing and that I am in love with them.
     
  7. Black Boss

    Black Boss TMO Addict

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    Completed Seat and Harness install. The Blue accents continue:

    IMG_4253.JPG
     
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  8. ArizonaBOSS

    ArizonaBOSS Because racecar. Moderator

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    Going with glass or lexan for the windscreens?
     
  9. Black Boss

    Black Boss TMO Addict

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    Lexan --Optic Armor
     
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  10. Black Boss

    Black Boss TMO Addict

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    Got the Brakes today:

    IMG_4284.jpg

    Theses things are a work of art!

    Installed front caliper brackets:

    IMG_4282.jpg
     
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  11. drano38

    drano38 Wayne

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    Nice to see the car coming together.
    I'm sure it will be a beast on the track.
     
  12. VoodooBoss

    VoodooBoss Rick Moderator

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    I can't wait to see the rest of the brake package installed on your car.
     
  13. Tob

    Tob TMO Advanced

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    I'm a bit shocked at the caliper nut torque figure of 40 lb-ft. I don't know the particulars of the stud shown but from a cursory visual (admittedly far from precise) inspection, the torque figure will barely impart enough stretch on the stud to properly retain the caliper. Have any other views of those brackets?
     
  14. JAJ

    JAJ TMO Intermediate

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    The caliper nuts don't do much except keep the caliper from falling off. The torque spec from Ford is huge considering that all the loading on the bolts (or studs) is in shear, not stretch. If they're tight enough not to vibrate loose, they're tight enough. I torque my OEM T60's to 100 ft-lbs, and if I were running studs instead of bolts (which I just might be), I'd be at around 60 ft-lbs. Anything more stresses the fastener without providing any benefit.
     
  15. ArizonaBOSS

    ArizonaBOSS Because racecar. Moderator

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    If those are the Radi-CAL motorsports calipers like on the 350S, they are gonna be sweet.

    Regarding the caliper nut torque, the Brembo motorsports stuff calls for 80 ft-lbs, but I'd wager that AP Racing knows a thing or two about how brake systems work ;)
     
  16. Swiss Boss

    Swiss Boss TMO Race

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    Those caliper are sweet. Your going to love them. Did you get the 1" pad version?

    I installed them in the Boss last winter. Brake fade is a thing of the past, pedal stay consistent trough the entire session.

    The final test will be at Indy in a couple weeks. I was able to completely cook the Brembo in 3-4 laps
     
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  17. Tob

    Tob TMO Advanced

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    I would assume them to know their work as well. But JAJ, I respectfully disagree. What creates friction at the nut is the amount of stretch in the stud. If it is not stretched properly, and that is dependent upon material properties, heat treatment, size, etc, the nut will indeed come loose from vibration/heat cycling (using jet nuts and the like can work to stake the nut) and encourage fatigue.
     
  18. Black Boss

    Black Boss TMO Addict

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    Yes Radi-CAL.

    Another shot of the caliper bracket:
    IMG_4291.JPG
    Got the Diff in today:

    IMG_4289.JPG

    And test fit the planned Diff breather line/vent:
    IMG_4292.JPG
     
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  19. Black Boss

    Black Boss TMO Addict

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    Lower Arm and Rear Spring Assembled:

    IMG_4294.JPG
     
  20. Black Boss

    Black Boss TMO Addict

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    Got the half shafts and most of the rear suspension in today, along with the rear caliper brackets:

    IMG_4370.JPG

    IMG_4369.JPG
     
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