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More turbo questions!

Discussion in 'Engine, Gearbox, Exhausts & Running Gear' started by yellow_chris, Apr 21, 2012.

  1. yellow_chris

    yellow_chris

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    I know everyone will say do a search etc but i have honestly been searching the past 30/45mins trying to find answers to my questions and ive had no luck!

    The questions i have are..

    MANIFOLD QUESTIONS.

    Does a megane 225 turbo manifold fit directly onto a 1*2 head? or is there tapping and drilling needing done? (nevermind this question now,i now know that its a direct fit)

    Is there enough room at the back of the 1*2 engines for a 225 manifold and turbo?


    TURBO QUESTIONS.

    Am i right in saying that the 225 uses a td04 turbo and that these turbos are water cooled? if so...does anyone know what model of td04 as i know there is variations of this turbo.
    Again..is there enough room to accommodate this turbo at the back of the engine?


    DOWNPIPE QUESTIONS

    Will the downpipe from a 225 fit in the space at the back of a 1*2 engine? if so...is it far off from been on the same path of the current exhaust?
     
    Last edited: Apr 21, 2012
  2. yellow_chris

    yellow_chris

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    Have done more searching on a Meganesport forum and found that they use a TD04 14t turbo. so one less question.
     
  3. alexr19

    alexr19 ClioSport Club Member

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  4. yellow_chris

    yellow_chris

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    i have read through that before...great thread but it doesnt answer my questions :smile: thanks anyway mate
     
  5. T.Trophy

    T.Trophy

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    The downpipe fouls the master cylinder on a clio. The reality is you'll need to drop your compression ratio as well, for the work involved you may as well use a garrett set up as the potential upgrades for the future will be a lot higher
     
  6. Cupman29

    Cupman29 ClioSport Club Member

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    There is space for the exhaust manifold and turbo but there isn't for the down pipe so some modification is needed for the brake master cylinder.

    I've never fitted the megane inlet to the 1*2 head but from what I heard it doesn't fit straight on. You will need to lower the compression ration anyway so you'd be as well fitting the 225 head to your block. You'll also need to get an oil return for the turbo.
     
  7. crombie1

    crombie1

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    if you were going to all the trouble of fitting a turbo would you not want to fit a bigger one than a standard megane turbo to start with, seems pointless
     
  8. yellow_chris

    yellow_chris

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    I know all the work needed to fit a turbo and I know what the bhp limits of the td04 are..I am just curious as to how much of the standard megane f4rt parts you can use with serious custom work. But thanks for your replys about the downpipe
     
  9. T.Trophy

    T.Trophy

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  10. Cupman29

    Cupman29 ClioSport Club Member

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    I have the head, inlet and exhaust manifolds, turbo, pistons, crank and rods from a 225 and the block and box from a Clio.

    Still to get the electrics done so not running yet but it all goes together.
     
  11. crombie1

    crombie1

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    are you sure the 225 crank will work ?. if your running a clio box you will be running a clio clutch and fly which i dont think with bolt up to the 225 crank
     
  12. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    Just run f4r crank, no benefit from using f4rt crank.
     
  13. crombie1

    crombie1

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    thats what i thought, i just wondered why he listed a 225 crank
     
  14. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    Iirc he bought all the running gear from andyrg complete so maybe thought it had a 225 crank.
     
  15. Cupman29

    Cupman29 ClioSport Club Member

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    Correct and Andy used the f4rt crank and I have used the clio flywheel with the jc5 gearbox and it bolted up fine.
     
  16. crombie1

    crombie1

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    So anyone thinking about doing this it's not really worth changing the crank ?
     
  17. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    No, no benefit.
     
  18. Cupman29

    Cupman29 ClioSport Club Member

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    Andy's reason for using it was it felt heavier so he thought stronger, that's all.
     
  19. crombie1

    crombie1

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    I'm not clued up on these engines but I no from the Vauxhall forums when people convert to turbo they use the na crank as it's stronger and a na inlet cam.
     
  20. Cupman29

    Cupman29 ClioSport Club Member

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    Why would a na crank be stronger when it is subjected to less torque?

    Doesn't make sense to me.
     
  21. crombie1

    crombie1

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    I have no idea. Guys on the vaux site have been converting na engines to turbo rather than using a turbo engine to start

    My bad, the na crank is lighter but equally as strong as the turbo and that's why its used
     
    Last edited: Apr 21, 2012
  22. Cupman29

    Cupman29 ClioSport Club Member

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    Sure its not just easier to use the na crank on a na engine and it's strong enough for the purpose. Dought it's stronger as for a car manufacturer to do that does not make sense.
     
  23. crombie1

    crombie1

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    No I was wrong. It's used because it's lighter
     
  24. yellow_chris

    yellow_chris

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    thanks for the input guys..

    I now know that the megane exhaust manifold will fit directly to the head and there is room for the turbo.
    The model of turbo used if any one is curious is the td04 14t.
     
  25. crombie1

    crombie1

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    are you planning it ?
     
  26. yellow_chris

    yellow_chris

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    if i can source the megane parts at a reasonable price i might consider a low boost conversion.. ive written up a list of ever part i need just pricing bits up at the moment.
     
  27. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    I have megane pistons/rods/injectors and inlet manifold if your interested.
     
  28. yellow_chris

    yellow_chris

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    if i go down this route im far away from doing the internals lol...
    Id be after a low boost conversion around 6/7psi..ive calcalated it to cost me around £700 with a fare bit of help from a mate who is a pipe welder/fabricator to make up the downpipe and intercooler pipes.
    My brother had an a3 1.8t and it has just been written off so he stripped it of all the extras. So i can get a few parts like air filter with relocation pipe,intercooler(its a universal ebay one but still works none the less),boost gauge and a dump valve really cheap.
     
    Last edited: Apr 22, 2012
  29. crombie1

    crombie1

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    how much ?
     
  30. Cupman29

    Cupman29 ClioSport Club Member

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    I've updated my project thread so take a look to see some issues you might come up against.
     
  31. crombie1

    crombie1

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    where is it ?
     
  32. Cupman29

    Cupman29 ClioSport Club Member

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    In the project section under 172 cup track toy.
     
  33. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    in the for sale section bar the inlet
     
  34. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    Mapping may double that.
     
  35. Cupman29

    Cupman29 ClioSport Club Member

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    Agreed!
     
  36. yellow_chris

    yellow_chris

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    My dads cousin owns a garage in inverness and he does live remapping so again its not to much of a problem. My brother was running an intercooler,decat,induction,throttle inlet pipe and my brother seen good gains after the remap and he was only charged £200. I know mapping is expensive as ive asked wallace performance in Aberdeen for a price as i was curious and they wanted £495!. Im quite lucky with the people i know that can help me out...its just finding the money to start it thats the problem lol
     
  37. scotty2hotty81

    scotty2hotty81 ClioSport Club Member

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    I have mentioned this on another thread, how many Clio turbos have they mapped on a standard Ecu? Remember the Ecu is not designed to work with boost and it takes a lot of work to get it right, get it wrong and you engine won't last long.
     
  38. crombie1

    crombie1

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    i think £700 is way off
     
  39. yellow_chris

    yellow_chris

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    i know ive read as many threads on turbo 1*2s that i could find on here. I know there has been clios that have had failure from been turbod but theres also been ones that run fine. If i was running a lbt around 6-7psi and the mapping was good i see no reason for the engine not to last long unless i was constantly thrashing it/not looking after it i.e servicing etc/been an idiot and turning the boost up past what people call safe psi on standard internals.
     
  40. yellow_chris

    yellow_chris

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    il admit that when i said this figure i didnt take mapping into consideration.
     

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