Megane 265 swap

Discussion in 'FI' started by Thomas Riach-Brown, Feb 11, 2020.

  1. Thomas Riach-Brown

    Thomas Riach-Brown

    Messages:
    5
    Car:
    Clio rs 197 cup
    Hi I'm looking to swap my engine which is a clio rs 197 cup to a megane 265 if possible, is there any help that you could give me on what I need to get to all work properly and possibly be 350bhp?

    Many thanks
     

  2. Beany

    Beany Platinum Member

    Messages:
    2,311
    Location:
    Doncaster
    Car:
    RB 200 cup
    @youngarthur has a mk3 Megane engine in his and had endless problems, you’d be best putting in a mk2 meg engine

    Or just buy a 265!
     
  3. Thomas Riach-Brown

    Thomas Riach-Brown

    Messages:
    5
    Car:
    Clio rs 197 cup
    Well I have my clio 197 with its blown engine on the drive and was wondering whats a good engine to swap it with and what bhp could I possibly get.
     
  4. DS197

    DS197 POTM Winner - June 2017 Paid Member

    Messages:
    1,670
    Car:
    Clio 197
    MK3 lumps seem to be very good for tuning so I don't see why you couldn't get 350bhp with an uprated intercooler/exhaust. The only issue is the torque, especially as you can only use the MK2 gearbox. May also be worth looking at how much it would cost to forge a MK2 engine.
     
  5. Thomas Riach-Brown

    Thomas Riach-Brown

    Messages:
    5
    Car:
    Clio rs 197 cup
    Is there any possibility using the mk3 gear as well or won't it fit?
     
  6. DS197

    DS197 POTM Winner - June 2017 Paid Member

    Messages:
    1,670
    Car:
    Clio 197
    It will fit if you're handy at fabrication but it's not plug and play like the MK2 gearbox.
     
  7. Beany

    Beany Platinum Member

    Messages:
    2,311
    Location:
    Doncaster
    Car:
    RB 200 cup
    The mk3 gearbox won’t fit sadly..

    best bet is to find a mk2 meg engine & gearbox, stick a hybrid turbo on and forge it.
    @Big Ben has had it done and running somewhat 300ish plus bhp & torque which in a Clio shell is plenty.

    At the end of the day depends what you want the car for? Could save your money, buy another Clio engine forge and supercharge that!
     
  8. lewishunter98

    lewishunter98 Paid Member

    Messages:
    660
    Location:
    Southampton
    Car:
    Racing Blue Clio 197
    Someone has fitted a MK3 box in a Clio, but as above as far as I'm aware it's definitely not a straight fit.

    Sent from my ONEPLUS A5010 using Tapatalk
     
  9. kimbe

    kimbe Paid Member

    Messages:
    5
    Location:
    Finland
    Car:
    Clio R.S. 200 & Laguna II GT
    Who is this famous Someone and is there any story and pics about that project anywhere?
     
  10. youngarthur

    youngarthur

    Messages:
    323
    My 197 has the 265 engine, and 225 box, running 320/340. The Engine/box/intercooler were fine, many other problems encountered, all now sorted, and car runs well. The 265 engine/225 box, will fit easily, the 250 box would fit, but needs bulkhead cutting, to get a good fit. Run the 225 rad, its has a larger capacity than the 197rad. A few people have overheating problems mine were overcome, after finding fan was blowing the wrong way around. I has sensor problems, all now replaced. Its easy to fit 225engine/box, and tune to around 280/300 torque, much more, and its best to forge. 250 engine goes to 320bhp easily, 360, with turbo change.
     
    Sean197 and Beany like this.
  11. Thomas Riach-Brown

    Thomas Riach-Brown

    Messages:
    5
    Car:
    Clio rs 197 cup

    What's the possible power you could get out of a mk2 265 engine and mk2 gear box?
     
  12. Big Ben

    Big Ben Winner - POTM February 2018 Paid Member

    Messages:
    5,660
    Location:
    Herts
    Car:
    197
    That’s hard to answer as it depends on what supporting mods you are adding.
    A stock 265 engine with standard turbo will produce about 310-320bhp after mapping

    Add on aftermarket turbo and crazy fuelling and 450+ is achievable
     
  13. Thomas Riach-Brown

    Thomas Riach-Brown

    Messages:
    5
    Car:
    Clio rs 197 cup
    Do you know if its plug and play with the engine and gear box also do you need a new wiring loom with new keys because I currently have keyless entry and push button start on mine.
     
  14. youngarthur

    youngarthur

    Messages:
    323
    I use the 225ecu with the 250 engine, the loom will needs some modifications.
     
  15. Big Ben

    Big Ben Winner - POTM February 2018 Paid Member

    Messages:
    5,660
    Location:
    Herts
    Car:
    197
    Engine dynamics or RSTuning can sort the loom and code the keys. Everything will work like factory
     

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