Q45/MPV Brake Upgrade Sanity Check - Page 2

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  1. #11
    CelicaSupra.com Member
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    Found a machine shop here and they recommended to bore out the mpv rotors to fit over the wheel hub. And then of course redrill the holes on the rotors. Any reason why this wouldn't work? Makes sense to me but wasn't sure if that route would impact wheel fitment or anything

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  3. #12
    CelicaSupra.com Member BillyM's Avatar
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    Do you want to do machining once, or do you want to do machining every single time you change front rotors?

    (Hint: Only one is a good idea, the other one your machine shop suggested...)

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  4. #13
    CelicaSupra.com Member
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    Good point didn't think about that . I was thinking path of least resistance.

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  6. #14
    Member HachiRolla's Avatar
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    Q45/MPV Brake Upgrade Sanity Check

    When I did mine I had to machine the outside diameter of my hubs to get them to fit inside the rotor, not confident you could machine the rotor to fit over the hubs like that.

    Mike


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    Mike

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  7. #15
    Supra since '86 rsdeo's Avatar
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    Don't waste your time... See here for the perfect swap.

    Look for a set of 1990 to 1992 Infiniti M30 front wheel hubs. They are designed for a floating disc, are 4x114.3 and use the same bearings as our cars. Just change out the studs to 12x1.5mm (Nissan uses 12x1.25mm).

    The wheel center bore is 66.1mm, machine down to 60.1mm if you really want to.

  8. #16
    CelicaSupra.com Member BillyM's Avatar
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    Fun fact about using the stock wheel hub, you can leave the entire thing assembled, put a bench grinder on the floor at a 45deg angle, and slightly lower the control larm onto the spinning grinder to home-machine your own pieces.

    --billyM
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  9. #17
    CelicaSupra.com Member
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    I just got the hubs and rotors back from the machine shop. 200 bucks for the whole job. What's the advantage of the M30 hubs other than you don't have to machine them? I tried to source them knew and rock auto doesn't sell them.

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  10. #18
    Supra since '86 rsdeo's Avatar
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    They are designed for a floating brake disk and the MPV disk clears them.

    Nissan dealer or do what I did find them here.

  11. #19
    CelicaSupra.com Member
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    So tonight, I get everything put back together and I go to put the hubs back onto the spindle and......the mpv rotors don't fit Did I check fitment before getting them re-drilled? Of course not!

    Am I retarded and not do something right or are these the wrong rotors? I researched this a 100 times and triple checked the dimensions on the rotors I ordered match all the threads on this topic....grrr. https://www.celicasupra.com/forums/sh...ighlight=300zx

    1992-1995 MPV Front (4wd only)
    Number of Bolts/Holes: 5
    Bolt Circle Dimension: 4.5"
    Discard Thickness: 1.024"
    New Surface Thickness: 1.1"
    Outside Diameter: 10.86"
    Overall Height: 2.515"
    Vented/Solid Design: Vented

    Rotors ordered DURA-GO BR31161 {#125227} Info If you convert the mm specs to inches, they match the specs above.

    Discard Thickness 25.908mm (1.02 inches)
    Nominal Thickness 27.94 (1.1 inches)
    Height 63.8 mm (2.511 inches)
    Lug 5
    Outer Diameter 275.7 mm (10.85 inches)
    Pattern 114.3 mm
    Type Vented
    Alternate/OEM Part Number(s): 125227

    HELP!

    As you can see in the pics below, the rotor hits the caliper bracket on the strut assembly. There's no way this thing is going to clear and allow the hub to completely slip into its place. Now, it's possible i have the rotor on backwards but if you flip it then the rotors sticks out way to forward and will foul with the wheel. FYI - I took the dust shield off to get a better look at what the rotor is hitting.

















    Quote Originally Posted by rsdeo View Post
    They are designed for a floating brake disk and the MPV disk clears them.

    Nissan dealer or do what I did find them here.

  12. #20
    CelicaSupra.com Member gamble's Avatar
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    Oh man, so close yet so far. The rotors go on the outside of the hub, like slim em right over the lug studs like you are putting the wheels on.
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