275 R

Discussion in 'Megane Projects' started by DOOOOK, May 3, 2017.

  1. eb28b284dc3995a352097fd8452ece41.jpg
     
  2. I did another track day yesterday but unfortunately I had to get home like this...
    4e4aa8379daba953c23a060090fa0dfe.jpg
     
  3. What was the issue?
     
  4. I had a great start to the day with news that my entry was accepted into Challenge Bathurst. A public road which closes just a few times a year for special events on our best known track. So, track day practice required.

    This time around I placed the microphone in the engine bay rather than in the rear hatch space. Some interesting noises going on there which you rarely hear sitting in the cabin. I know it sounds loud but it is a sensitive microphone. Anyway, you'll hear the "dose" (compressor surge). After four years of high RPM gear changes I wonder if it took its toll?

    So, when I lost power there was a few noises and an almighty racket. I already had a Stage 2 Engine Dynamics turbo. I'd love it just to be an oil seal or cracked pipe. My concern is if it exploded, has it gone into the engine, I/C and or cat converter. If you don't want to watch the whole session, just fast forward to about 6:40 to see and hear what happens.



    Hopefully the inspection will diagnose the fault. Moreover, we need to see the total damage before deciding anything. For fun though, I've been doing some initial research on what's available these days in terms of turbos:
     
    RobbieR likes this.
  5. Sorry to hear, hopefully you get it sorted before bathurst.

    Looking forward to seeing you there!


    Sent from my iPhone using Tapatalk
     
    DOOOOK likes this.
  6. Fingers crossed a cheap fix. But the pessimistic demon in me says, probably not.
     
    DOOOOK likes this.
  7. manugtt

    manugtt RSM Club Member

    Shit! Sorry to read this news man. Well, like a friend says, not a break, is an opportunity to make it faster:wink:
    Cheer up mate!
     
    DOOOOK likes this.
  8. It will be ready for Bathurst, don't doubt that.

    I've put down you and Dave to share a garage. Looking forward to it!
     
    RobbieR likes this.
  9. An initial quick observation indicates damage contained within the turbo which is positive. However, a more thorough inspection required to confirm that.

    I'm thinking a Borg Warner EFR6758 as a suitable replacement.
     
    ianplymouth likes this.
  10. Hi Dooook
    That's what mine is running, very pleased with it, was a bit of a faff to get it fitted but worth it.
     
  11. Hi Ian,
    I'll need to revisit your build thread for the details. I was hoping to use the K-Tec V-band adapter off the manifold and have a custom V-band dump pipe fabricated. Are there other aspects that make it a faff to get fitted?
     
  12. So it sounds like you are not going for the twin scroll one then, i'm very happy with mine, boost starts at around 2k and is on full boost at 3.5k and just pulls and pulls.
    Once i made the adaptor it wasn't too bad a fit, the only V band i used was on the decat pipe, that had to be lengthened by 30mm, the turbo has a bigger exhaust outlet and is higher anyway and then there's the adaptor i fitted as well.

    The actuator that came with my turbo wasn't worth using, it's only set at 11psi, i retrofitted a Turbosmart one that was set at 26psi.

    There is also no room to fit the actuator in its supplied position, that also had to be moved and altered.
     
    DOOOOK likes this.
  13. Given all of that, I think I'll go with the TTE option. Going down the EFR path, or similar, is best with a forged build. A quick estimate shows that for me doing an EFR would be an AUD$10,000 exercise whereas just getting a new hybrid would be a AUD$2,000 exercise.
     
  14. Ouch, how is it going to cost that much, even $2000 for a hybrid is silly money
     
  15. Never found the missing bit
    50165851108_019dab1c6c_k.jpg IMG_20180804_121803 by Ian Austin, on Flickr
     
  16. manugtt

    manugtt RSM Club Member

    :fearscream::fearscream::fearscream: That was a turbine?? Missing bit still in the track possibly!
     

  17. Yes what was left of it
    More than likely :openmouth::openmouth:
     
  18. I stand corrected.The TTE340 is 1,633 Euro. In aussie dollars that's around $2,500

    To make an EFR fit, the things that I would need to get include; new pre-turbo intake, new custom dump pipe, either K-Tec adapter or entire exhaust manifold, new wastegate actuator that would need custom fitting and tuning, custom re-tune and obviously the turbo itself which is around $3,500 alone, then the labour for all that work.
     
  19. a0b22116e49a5fc14b9f3a8da5c6e76b.jpg
    2639fb6666f38a299e625e2ef8bc7aec.jpg

    So far all I need is a new turbo and most likely a new dump pipe with cat.
     
  20. So far all I need is a new turbo and most likely a new dump pipe with cat.

    A bit of welding & that will be good to go.
     
  21. OUCH, Expensive breakdown, I hope you had insurance to tow the vehicle outside the track.
     

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