2020 Supra Documents Added to TIS

Discussion in 'General Supra Topics' started by Jeff Lange, Jul 4, 2019.

  1. Jeff Lange

    Jeff Lange Well-Known Member

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    Repair manual, New Car Features, Collision Repair, etc., has been added to TIS as of today (the repair manual was actually posted earlier with the B46, etc., but then removed, it's back with only the B58 listed).

    If you want to take a look you'll need to have or buy an account.

    http://techinfo.toyota.com/

    Jeff
     
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  2. OP
    OP
    Jeff Lange

    Jeff Lange Well-Known Member

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    #2 Jul 4, 2019
    Last edited: Jul 4, 2019
    Quick notes:

    • Full engine model is B58B30M.
    • Power is listed as [email protected] to 6500, which is interesting. Flat torque curves are common these days, but a flat power curve almost always means it is being limited by the ECU and/or being under stated.
    • Doesn't require premium fuel (87 octane AKI or higher).
    • "Toyota Genuine Motor Oil SN 0W-20 C5 for GR Supra" engine oil is specified, 0W30 is also acceptable.
    • BMW Frostox HT-12 engine coolant is specified.
    • Crank and rods are forged of course.
    • Steering wheel is 373 mm
    • Automatic Gearbox Oil ATF 3+ transmission oil is specified.
    • Exterior mirrors are heated, auto-dumming and have power folding.
    • Canada/US curb weight is listed at 3397 lbs.
    • Mexico curb weight is listed at 3461 lbs.
    • Fuel tank capacity is 52L
    • Canada/US model code: model code: DB43L-ZRLA, Grade: RZ.
    • Mexico model code: DB41L-ZRLW, Grade: RZ.
    • Front brakes: 40/44mm piston size, 348x36mm 2-piece floating rotors
    • Rear brakes: 44mm piston size, 345x24mm 2-piece floating rotors
    • DOT4 brake fluid is specified.
    • Rear differential is a BMW 215LWS model with 3.15:1 final drive.
    • BMW Hypoid Axle Oil G4 is specified for the differential.
    • Heated power seats with a memory system on the driver's seat.
    • A spare tire is not provided, only a repair kit.
    • Front wheel alignment: toe-in: 0.27° +/- 0.20°, camber: -1.63° +/- 0.50° w/o(AVS), -1.75° +/- 0.50° w(AVS), caster: 7.58° +/- 0.50°, steering axis inclination: 17.35°. Toe is adjustable, camber is adjusted by replacing the steering knuckle.
    • Rear wheel alignment: toe-in: 0.23° +/- 0.20°, camber: -1.83° +/- 0.42° w/o(AVS), -2.00° +/- 0.42° w(AVS). Toe is adjustable.
    I'll edit this post to add anything I think is interesting as I come across it.


    Jeff
     
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  3. HcNine-Six

    HcNine-Six Active Member

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    Appreciate the update!

    I have access to TIS and been checking it a few times a week.

    Thanks!
     
  4. s219

    s219 Well-Known Member

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    Interesting -- BMWs with the B58 list 89 octane as the minimum. I wonder how much the max HP number is dependent on this. The engines will adjust timing based on octane (or rather, detection of detonation related to octane) so it's conceivable this plays into the rated HP number. Makes me wonder if the "low" 335HP number for the Supra's B58 is tied to the lower octane limit.
     
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  5. TheDude22386

    TheDude22386 Member

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    Been waiting to see something pop up. Just saw it today as well. Mirror caps look easier then I thought they would. Will be waiting for the rest of the carbon fiber instructions.
     
  6. dvq

    dvq Member

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    I was wondering about this, because I've seen the Toyota diff described as an "electronic active limited slip differential" with the capability to "fully lock" the diff "instantly".

    From what I can find on the 215LW (Spline) is an open diff -- and I've read the Supra isn't getting the M Sport Diff.

    Does anyone have any other technical details?
     
  7. kona61

    kona61 Well-Known Member

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    I do not have any documents, but the car definitely has a LSD. It would not be able to slide like it does without one.
     
  8. OP
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    Jeff Lange

    Jeff Lange Well-Known Member

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    "The rear differential carrier assembly used with the electronically controlled limited slip differential connects to the left and right drive shafts via multiplate wet clutches. The clutch is intermittently and steplessly controlled by the electronic control motor in response to driving conditions."

    The Supra uses an electronic torque vectoring LSD. 215LWS is the M Sport differential.

    Jeff
     
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  9. MA617M

    MA617M Well-Known Member

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    Doesn't sound like a torque vectoring unit, merely the lock up of the lsd plates are controlled electronically?
     
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  10. BRX

    BRX Well-Known Member

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    It's Torque Vectoring similar to how Auto LSD works on Toyota Trucks. It uses the brakes to prevent wheel slippage to "simulate" an LSD in an offroad situation rather than an actual LSD on the street.

    I assume the A90 diff is electronically controlled to simulate a mechanical torque vectoring diff by utilizing sensors to detect when to engage/disengage the clutches.
     

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