225 goes forged

Discussion in 'Megane Projects' started by tokiido, Nov 5, 2018.

  1. Hi ......

    i am Thomas , came from Germany ....so sorry for my English :grimacing:
    drive my Rs F1 since 2007. a great car ....
    but after good 112000km came what had to come



    He ran until then with 290bhp @ 1,5 bar of boost
    i changed the exhaust , complete Miltek with downpipe and 200 cpi CAT
    big intercooler
    stainless steel pipes
    deatschwerks 580cc injectors
    and bpc2 maping

    Now I rebuild it completely !!
    My wish would be stable 400 bhp as I use it daily.
    Parts and pictures follow ....
    Genty likes this.
  2. Hi Thomas
    You will need a Mk3 fuel rail really, internally its larger and the feed is in the middle, also then you can use the raising rate feature.
  3. still work in progress :innocent:

    Block mods :
    roughly cleaned, sandblasted, frost plugs removed


    after some days :

    drilled and honing @ 83,7mm
    fresh paint
    ARP bolts for the crankshaft
    King XP bearings
    new oil sprays
    new oil pump
    Wössner pistons 83,5mm with 8:1 comp
    Pec H beams
    ARB bolts for the clinderhead
    crankshaft is finely balanced
    Wear parts are all new
    Installation dimensions all checked and tolerances kept
    [​IMG] [​IMG] [​IMG]
  4. [​IMG] [​IMG] [​IMG]
    Genty, tof73 and Jamie230 like this.
  5. wow, i wish, another great thread i feel, look like you spending a fair bit on this engine, whats the plan in term of Horse Power and Torque?
  6. Yes, that's the way it will be !!!:laughing:my plan where stable ~400bhp@ limited ~500Nm

    next step , cylinder head
    also a original F4R774 head !!!!

    mods :
    Milling plan
    milling valve seats at an angle
    new seals
    ClioRS camshafts
    ClioRS valve springs
    all valves polished
    Meg3RS Camshaft wheels (dephaser is out off :sunglasses: )
    all Channels enlarged and adapted to the manifolds

    [​IMG] [​IMG] [​IMG] [​IMG] [​IMG]

    alles orginal Renault sport Teile !!!

    and here is the complete belt drive system ...

    the dephaser has a locking pin in the idle state.
    and since the 774 has no phase adjustment, I have sealed the banjo bolt, and the cavities in the wheel with 2k liquid steel poured out....


    timing looks great and has no problems !!!!
    i had only the bridge at the cams and the crankshaft pin ....
    Since the phase adjustment is not running, the wheels need no special timing position

    to be continue.....
    Genty, tof73 and Poppaboost like this.
  7. Exhaust manifold and turbo :

    my old manifold is full of heat cracks, and i planed some upgrades ...
    so i buy something else :sunglasses:
    I hope that the good optical quality works also in the technical way.

    manifold from SAStrust
    4way EGT system
    flange plan milled
    revised edges on the turbo flange
    [​IMG] [​IMG] [​IMG] [​IMG] [​IMG]
    on the pics only two of these, but but they are 4...
    the turbo is a normal meg3RS (15T) but upgraded by Ladermanufaktur[​IMG] [​IMG] [​IMG] [​IMG]

    i know !! not the best choice.
    but for me a good option.
    Genty likes this.
  8. Nice project.
    Looks like they use 9 fins on the exhaust turbine compare to 11 on HL turbine.
    This is a good choice to get more flow out of the small tdo4 housing. Not sure you will se 400 Hp but would love to see the results.

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