Levorg manual transmission conversion

Discussion in 'Subaru Levorg Modifcations' started by Peter S, Oct 23, 2019.

  1. Peter S

    Peter S New Member

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    Hi gang,
    I’m new here and thought I would kick straight off!
    i Am shopping for a new wrx or Levorg. Want the Levorg but the Cvt is very much holding me back. My question is, has anyone:
    - completed a Manual conversion (either the 6sp manual wrx box, or STI 6sp)
    - is thinking about it or has investigated how?
    - can it be done ? Costs? Parts needed?

    noting subaru themselves made a 6 speed STI Levorg as a show car a couple of years ago -

    many thanks all, love the Levorg !
     
  2. IANDLP

    IANDLP Member

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    Can it be done-yes. Is it worth doing-unsure. Getting it to talk to all the electronics is the challenge and not sure yet that the Eyesight can be programmed to work as it should without fault
     
  3. Oz B-Spec

    Oz B-Spec Member

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    As IANDLP mentioned, yes it could be done and probably fairly easily too, as one would assume that the standard WRX gearbox would bolt up fairly easily to the FA20 in Vorg, considering its the same engine in the WRX. The STI however, maybe a little more difficult, as the STI box is mated to the EJ motor and so may not easily bolt up to the FA20 (unless of course, the bell housings between the WRX and STI are interchangeable?).
    Mechanically, you'd need a modified driveshaft, clutch system (the standard WRX setup would be the first choice). With the WRX manual gearbox, you may be lucky to find out that the front CV's transfer over to the Vorg, however, if the track between the Vorg and WRX are different, then you'll either need to have new ones made or the WRX ones modified to suit. Also for consideration is working out how the factory dash will pick up the engine revs and speed. An aftermarket ECU may be needed to get it running right.

    EyeSight will be a difficult one to get operating, if at all, as my understanding is that it heavily linked in with the 3 front cameras, braking system and CVT, so you may have to sacrifice cruise control and collision avoidance, but, who cares if you have a manual Vorg!

    Cost-wise, it would be a pricey exercise unless you're doing most of the modifications yourself. I would estimate over 10K AUD to do it with very "rough" estimates below;
    Gearbox - 1500-2000AUD
    ECU - 2000AUD
    Tuning - 1500AUD
    CV's - 200-500AUD
    Drive Shift - 500-1000AUD
    Unknowns - 2000-3000AUD (switches, sensors, wiring, labor etc)

    The exhaust may need to be modified if the manual box encroaches on it, although I would think not as I believe the CVT's are bigger than the manual gear anyway.

    Oh and make sure that diff's in the WRX and Levorg share the same ratios otherwise you need to put a WRX diff in as well I would think.

    See, simple to do :)

    Hope this helps.
     
  4. IANDLP

    IANDLP Member

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    We have utilised a WRX gearbox and rear diff (non STI) but I have been advised (yet to confirm) that bolt pattern is shared. Tailshaft is a combination of the WRX front section before the centre bearing and Levorg rear section. Front driveshafts from the WRX are a straight fit as they share the same track and splines to the hub. We also linked the WRX ECU etc without issue. Almost everything works bar what’s mentioned below.

    Issues so far evolve around the Eyesight and active cruise. Still trying to nut those out. Normal cruise control functions as it should. But without the Eyesight system being operational legality of the conversion is unobtainable.
     
  5. Peter S

    Peter S New Member

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    iandlp!
    Sounds like you are getting close!
    Would love to hear more about this. with such a conversion I wouldn’t have thought a state based engineering report is needed. E.g. Eyesight isn’t a compulsory roadworthy feature.
    where are you based in au?

    thanks all -
     
  6. IANDLP

    IANDLP Member

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    Engineers report is required as M/T was never an option on these vehicles. Although not compulsory, it is technically against the law to remove safety features fitted standard to a production vehicle eg pre tensioners, curtain airbags, eyesight etc.

    Based in Sydney
     
  7. Peter S

    Peter S New Member

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    So it’s been a while so I thought I would just check in.
    Iandlp - How is the manual project is going? Do you have a driving manual levorg? Any major challenges ? Who did the work in the end?
    Cheers
    Peter
     

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