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Simmy's Naked Turbo Project

Discussion in 'XJ Modifications' started by Simmy, Feb 25, 2017.

  1. Minimutly

    Minimutly Well-Known Member

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    Thanks, missed that pic!
    The 900 is pretty roomy "down there", but equally, the airbox hole is massive too, and there is some clearance between the xj900s tyre and the swingarm to get the hot gasses up. Altenatively, the 900s swingarm could be persuaded to fit, and this has loads of room - where the monoshock lived.
    So the oil checkvalve is needed to stop the hot oil seeping through the pump - both of them...
     
  2. Simmy

    Simmy Well-Known Member

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    I just re-read the ride reviews from that Cycle Guide road test of the Turbo. This Larry Works guy seems to agree with me.

    By all rights, the Seca Turbo should be up near the top of my list, since it’s based on one of my favorites, the XJ650 Seca. But it’s not. The Turbo Ls appealing in its own way, but any resemblance between the Turbo’s Rocket Boy looks and the smooth, balanced styling of the XJ ends at the fact that each bike has two wheels and four cylinders. Beyond that, how each 650 approaches street duty is as different as night and day. The normally aspirated Seca makes up speed in comers, while the Turbo—though not as top-heavy as the Honda CX Turbo — feels somewhat ponderous in the twisties. Not enough to keep you from going fast; just enough to make the straights seem more attractive. Call it plain pigheadedness, I won’t argue. But a real turbocharged Seca, one without the slab-sided plastic, would suit me to a T. —Larry Works
     
    k-moe and jayrodoh like this.
  3. fj1289

    fj1289 New Member

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    Awesome build! Well done throughout.

    This is exactly what I wanted to do with my RJ (in the late 80’s!) I remember that article - agreed!





    There’s a couple XJs locally on Craigslist now....might have to make some room with the FJs...
     
  4. Simmy

    Simmy Well-Known Member

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    Thanks @fj1289
    I hope to have a major update in another week or so.
    Paint and graphics are done just need some clear-coat then I can put the body pieces back on.
     
  5. Simmy

    Simmy Well-Known Member

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    The XJ650SecaLJ/RJ Hybrid is complete.
    This project took me exactly 4 years from start to finish.
    Actually its 99% finished, I need to refinish the handle bar switches, already bought new decals for this.

    9.jpg
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    Here is the parts list in addition to a Seca Turbo:

    FZ600
    front wheel, axle, brake rotors, calipers, forks, fender

    XJ650RJ
    fork crowns, headlight and bracket, instruments (RJC electronic tach),mirrors, signals,
    oil level switch & diode pack,
    tank, seat, tail piece, side covers, tail light, rear fender, frame tabs, rear section of frame,
    valve cover, oil pump covers, grab handles

    XJ700N
    rear wheel

    XJ900RK
    rear shocks

    Aftermarket Stuff
    Walbro GSL395 fuel pump
    BoostValve boost controller
    Check valve in oil scavenge line
    Venhill SS brake lines
    Bridgestone BT45's 110/90-16 & 130/90-16 (same size as Radian)
    RaceTech fork springs
    Barnett clutch springs
    BDesigns.ca custom decals
     
    Last edited: Feb 27, 2021 at 4:31 PM
    Franz, k-moe, Minimutly and 3 others like this.
  6. jayrodoh

    jayrodoh YimYam Premium Member

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    Wow! Great paint job!!!
     
  7. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Extreme like!
     
  8. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Beautiful sleeper. The casual observer would never guess there's a turbo on it.
     
  9. Simmy

    Simmy Well-Known Member

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    Exactly, I thought about tarting it up with Turbo badges but this is better to keep the deception.
    It’s still a numbers matching Turbo, if I play with more displacement I will build another motor and leave the original alone. It sure is lighter.
     

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