Garrett T25 specs or any kind of info

  1. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #1
    Good day all,

    I've sourced this T25 locally, it has been revised and was a bargain.

    Now I'm trying to find out what specs it has, tried google and mailed Garrett but so far nothing yet.

    I know there are a few turbo-experts on here, could someone tell me what I've bought
  2. Saxperience Post Whore Joined: Feb 2008 wirral Posts: 6348 Icelandic vtr turbo
    #2
    Go on the garrett website and put on that number and it should come up with the spec mate
  3. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #3
    Already tried that mate, didn't work though.

    www.turbobygarrett.com
    http://www.turbomaster.info/eng/turb...fy_garrett.php
    http://garrettbyhoneywell.com/product-search/

    All came up with nothing
  4. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #4
    Anyone?...Not even "GoldenTurbo" Ross? Or Andrew (Blackie_2k5)?

    I've come to the conclusion it has got a T2 inlet housing though..
  5. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #5
    I've figured it out! Well I've had some help from Turbo Hoet (Garrett dealer in the Netherlands)

    It's a T2 core and compressor housing from a 1994 Renault 5 GT Turbo with a T25 turbine housing.

    Has a turbo from a renault 5 gt turbo ever been bolted on a saxo 16v? I've tried the search but it came up empty..
  6. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #6
    really sorry I didn't see this earlier or I would have helped

    Pleased you got it sorted! I don't think anyone has used an R5 turbo on a saxo yet, but if you can get the inlets/outlets to line up with some custom pipework, go for it. I will say that they don't make a lot of power, and HATE high boost with a passion (high in this case is more than around 14psi). Over this you really cut the life expectancy.

    Interestingly also the actuator used there is non-adjustable. The standard R5 actuator arm is adjustable via a spanner/nut arrangement. Wonder what that one is from

    Let us know how you get on!
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  7. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #7
    No problem mate, glad it caught your eye now

    Compared to your ridiculous herd of horses "not a lot of power" is pretty relative

    What would be a realistic target with this turbo? (assuming that I can run it with 1 bar /14 psi)

    in- and outlet piping shouldn't be a problem, I have a fair bit of experience with stainless TIG welding and lots of 304L 2 / 2.5" piping at my disposal.
  8. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #8
    I'd say with supporting mods, this turbo will make low 200's bhp - maybe 230bhp at around a bar. But it will be on it's limit there and you should keep an eye on inlet temperatures if you can. Will you be using the standard (plastic) inlet manifold?

    What size pipework will you use? If you will be happy with the sort of power I say (230ish) then you can stick to smaller pipework (2" for example) and a smaller intercooler. This would make for an amazing fast spool with no lag
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  9. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #9
    I would be really happy with 200-ish bhp, and will get the mods necessary for this. For now I'm still gather bits and bobs, my desk job leaves me loads of time to scour the internet

    I am planning on using the original plastic inlet manifold, guessing that would be an issue?

    I will use 2" ic piping and 2.5" exhaust, no lag and fast spool would be my aim for now as driveability is a priority for me
  10. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #10
    Quote:
    Originally Posted by RowanVtr View Post
    I would be really happy with 200-ish bhp, and will get the mods necessary for this. For now I'm still gather bits and bobs, my desk job leaves me loads of time to scour the internet

    I am planning on using the original plastic inlet manifold, guessing that would be an issue?

    I will use 2" ic piping and 2.5" exhaust, no lag and fast spool would be my aim for now as driveability is a priority for me
    no no the standard inlet is fine at this power level/pressure - it was just a question

    Good choice on the pipework. remember boost pressure is technically your enemy - it's not a good indicator of performance, only an indication of restriction. With restriction comes friction, and in turn, heat. You want the most power with the least restriction. BUT... removing restriction (bigger IC or pipework, bigger plenum etc) add's volume, in turn, adding lag.

    Find the balance and you have a very fun car!

    If you plan to use this car on the roads, it's much better to have a smaller turbo with less lag than a big turbo for sure. Around town or on back roads, a car like this with 200bhp or so will really upset a lot of other cars as it will be so quick in this speed range! I had probably the most fun driving on the road with my gt28 and only 280bhp. Was just grin grin all the time!

    I hope you enjoy it!
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  11. Infrequent Poster Joined: Aug 2007 Netherlands Posts: 154 Saxo VTR '96(K.I.A.) Saxo 16V VTS '01
    #11
    Thanks for the help so far! Takes me back to when I was in school learning for 1st mechanic

    Speaking of which, I still have some (I think) useful books on the shelf.

    "Street Turbocharging" by Mark Warner and "4 stroke performance tuning" by A. Graham Bell

    I'll open those up again

    Will keep you posted with my progress and maybe bother you with some questions if you don't mind
  12. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #12
    of course - it's no bother at all

    PS - I have read (a LONG time ago - maybe 20 years ago now ) the Graham Bell book. It's very good for beginners new to tuning.

    I also read a lot of books by Dave Vizard (most A series engines when 20 years ago I was tuning minis!) - http://www.amazon.co.uk/Tuning-Briti...9349773&sr=1-6

    It's obviously aimed at the A series, but contains invaluable information for general knowledge you can apply to lots of engines. If you get a chance to browse a copy, I highly recommend it!
  13. Established Member Joined: Jan 2011 Aberdeen Posts: 1092 Turbo Saxo vtr, 2010 Octavia VRS TSI, mk3 Ibiza cu
    #13
    Quote:
    Originally Posted by Ross View Post
    of course - it's no bother at all

    PS - I have read (a LONG time ago - maybe 20 years ago now ) the Graham Bell book. It's very good for beginners new to tuning.

    I also read a lot of books by Dave Vizard (most A series engines when 20 years ago I was tuning minis!) - http://www.amazon.co.uk/Tuning-Briti...9349773&sr=1-6

    It's obviously aimed at the A series, but contains invaluable information for general knowledge you can apply to lots of engines. If you get a chance to browse a copy, I highly recommend it!
    Might have a gander for these, I'm away to build my shell from the ground up including a jp4, allready sorted out a unit - could be usefull for me
  14. Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.
    #14
    The Graham Bell book has been around as long as I've been alive almost (it's been revised a few times lol) - it really does explain things in layman's terms but gives plenty of detail where needed.