Problem with s1 rallye turbo

  1. L-plater Joined: Apr 2009 Posts: 72
    #1
    hi
    I have s1 rallye 1.6 16v turbo
    my setup is
    logtype exhaust manifold
    stock cams
    TD04 13g turbo from impreza wrx
    FMIC
    356 injectors
    250kpa map sensor
    stock 3 plug ecu

    I have the following problem

    0n 0.75 boost tha car made 200 bhp and 270nm but after 6200 rpm the power curve drops very very fast and it can't hold any power after 7000 rpm
    The torque qurve is just the same - it makes peak torque at 3500 rpm and falls down to 170nm at 6000rpm!
    Is it the logtype manyfold or it's just the turbo being too small (it's from 2.0 impreza)
    also have you got any dyno graph from stock impreza with 13g turbo

    http://i1142.photobucket.com/albums/...g?t=1294959161
  2. Saxperience Forum Bum Joined: May 2007 Posts: 4857
    #2
    Little hard to tell with the info you have given. I tried to get the flow chart for the MHI TD04 13g but could not see one. But did the charge temp start to spike? How was the fuel air ratio through the rev range? Also what duty cycle are your running your injectors up to? What is the full spec of you setup?
  3. Established Member Joined: Nov 2008 Eastbourne Posts: 2474 Astra van daily Black Saxo VTR 16v'd kent PT51
    #3
    Would running stock cams be a reason its peaking power?
  4. L-plater Joined: Apr 2009 Posts: 72
    #4
    AFR reading is 11.5
    my full spec is tup4j with decompression plate to 9:1 and everythink else standart