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Thread: KMiata SCCA Solo XP swap

  1. #1
    High Speed Low Drag aMaff's Avatar
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    KMiata SCCA Solo XP swap

    It's finally getting close enough that I want to get started on prep work for this project since I've got most of the parts needed now.

    The first bit of prep was the steering rack, and so as to not lose the NB rack bolts I figured I'd put the bolts into the threaded holes in the V8R-sourced subframe.
    3 out of 4 had powder coat completely boogering the bolt holes. On the upside, the thread pitch of those holes is M12x1.25mm, which is the M12 tap I don't actually have in stock.
    A quick Amazon shopping trip and a couple days later, the tap comes in.
    After chasing the threads in the good bolt hole and 2 of the 3 bad ones, I realize 1 of the engine mount brackets completely blocks access to the 4th. Improvise and overcome right?

    Turns out, a 5/16" 12-point socket makes a good-enough narrow access tap wrench for an M12 tap.



    Nickolaus G recommended I check the rest of the holes on the subframe, and sure enough, the news is equally "good".

    Nope.


    Nope.


    Nope.


    Nope.


    Nope.


    Next move is to run to home depot to get some 3/8 rod (since I'm apparently out) to make a bore-polishing sanpaper flap tool to clean these out before I try bolting this whole thing to the car. Probably need to clean up the surfaces where the eccentric washers bear on the subframe as the powdercoat is probably way too thick there and might limit adjustment range. I'll re-paint everything to prevent rust, but it'll be a lot thinner than whatever 1/8" of powdercoat they slapped on this thing with no protection on bolt holes....
    ~Andrew
    Atlanta Region SCCA
    114 DP

  2. #2
    No words bazooka joe's Avatar
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    Oh boy! Should be a fun thread !

  3. #3
    High Speed Low Drag aMaff's Avatar
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    SITREP:
    Good news: I got the bores cleared out.
    Bad news: they're banana shaped and the bolts won't go in.



    The bolts bind up solid as soon as they get to the 2nd weld, so it's super warped
    I could bash it in with a hammer, but that's going to lead to some serious suspension bind. And I don't have a 15mm reamer sitting around (and a mill big enough to fixture this damn thing in) to fix it myself.




    I appear to have been the very unlucky person that got a bum part. David with KMiata has been awesome to work with and has been super apologetic. He says he's only seen one of these in the last 2 years once the production kits started going out, and they're going to get another one sent out ASAP. Super frustrating, but I'm glad to be finding it now rather than in a couple months when I'm starting in earnest.
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  4. #4
    High Speed Low Drag aMaff's Avatar
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    Good news: KMiata is having another subframe sent out today.



    While I wait for that to come in, I figure I might as well do some of the small things. I have a depowered NB rack as specced out for the subframe mounts, but didn't realize (until reading through the full documentation) that the 2 small hydraulic fittings on the main tube of the rack housing need to be cut off. So, I did that, then picked up a couple small 3/16" rivets to JBWeld in





    Once it sets up I'll clean that up & throw some paint on it.
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  5. #5
    No words bazooka joe's Avatar
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    You’ll be done for the hill climb?
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    High Speed Low Drag aMaff's Avatar
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    Still no. Timetable's always been to tear it down to start this properly *AFTER* the hill climb in August. I'm just starting to work on some of the finnicky out-of-the-car stuff while I'm here. Probably going to tackle the oil pump / chain tensioner / sump / oil pickup next, but that's a big enough job I keep kicking it down the road. It's not really THAT big, I just haven't been able to string a day together to do it.
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  7. #7
    No words bazooka joe's Avatar
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    KMiata SCCA Solo XP swap

    Quote Originally Posted by aMaff View Post

    Still no. Timetable's always been to tear it down to start this properly *AFTER* the hill climb in August. I'm just starting to work on some of the finnicky out-of-the-car stuff while I'm here. Probably going to tackle the oil pump / chain tensioner / sump / oil pickup next, but that's a big enough job I keep kicking it down the road. It's not really THAT big, I just haven't been able to string a day together to do it.
    Ok, got it! Which one are you doing again?
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  8. #8
    High Speed Low Drag aMaff's Avatar
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    Which hill climb? Chasing the Dragon in Robbinsville, NC
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  9. #9
    No words bazooka joe's Avatar
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    Quote Originally Posted by aMaff View Post
    Which hill climb? Chasing the Dragon in Robbinsville, NC
    Oh, for some reason I thought it was PA? Cool
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  10. #10
    High Speed Low Drag aMaff's Avatar
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    The Duryea Hill Climb (or maybe Pagoda?) in PA is, I think, either the same weekend or 1 weekend either side of Chasing the Dragon. I'd love to make it out to some PHA events sometime, they seem to put on a great show.
    Last edited by aMaff; 07-03-2019 at 11:00 AM.
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  11. #11
    High Speed Low Drag aMaff's Avatar
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    Finally broke the seal on the motor.

    And despite having drained it, completely I thought, after first getting it...



    Maybe there was a bunch stored inside that massive oil pump, that after flipping it over a couple times for various reasons, broke free? I dunno, but I didn't think I needed to drain the sump a second time. I'm REALLY glad I had that pan there or I'd have been boned.
    Thankfully I managed to get most of it into a drain pan without issue. Only a minor spill, all things considered.



    The bolts for the oil pan are SUPER crusty, so I may need to pick up a package of those if they don't clean up in the parts washer, and are actually corroded too badly
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  12. #12
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  13. #13
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    Got the engine torn down as far as I need to:



    Including the mahoosive oil-pump & counter-balance shaft assembly. That thing is...not light.




    Now to spend a lot of quality time cleaning HondaBond and oil off of parts and reassembling things.

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  14. #14
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    I also realized that the engine I got from the scrapper didn't come with the water pump housing. Or rather, I realized, looking at the shape of the new water pump, and the shape of the whacking great big hole on the side of the engine, that there was at least 1 piece missing
    Did a little looking around and realized that, yeah, there's an intermediate housing there that the pump and thermostat bolt to.

    I'm learning new things every day!
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  15. #15
    High Speed Low Drag aMaff's Avatar
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    The new subframe came in on Friday as I was leaving to spend the weekend at the lake w/ the family, so no checking got done, but:

    No hammer or clearanceing needed!



    A couple of the threaded holes needed the threads chased, and some of the lower control arm bolts are a hair tight (that'll just be a matter of cleaning a bit of powder coat). But that the upper arm bolts just fit is huge (and confirmation, if more was needed, that there was an issue).
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