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Thread: MKIV GTI Power Figure?

  1. #1
    Join Date
    May 2012
    Location
    Brisbane
    Posts
    87
    Users Country Flag

    MKIV GTI Power Figure?

    So I recently had my gti dynoed. Now it's a known low reading dyno but it made 130hp on this dyno (really More around 145). My question is with the below mods should it be making more? It feels so much more than 145hp!

    APR Cai with pod
    APR 98octane tune
    Fuel pump
    Aftermarket fmic
    Turbo back exhaust with hi flow cat etc.
    Lightened flywheel

    Thoughts?

  2. #2
    Join Date
    Dec 2008
    Location
    sydney
    Posts
    194
    Dude, you already started a thread here,
    http://www.vwwatercooled.org.au/foru...ure-72928.html
    You need to compare the before and after power on the same dyno. Some dynos read low and others are real happy.
    Do you have a stock power figure ?
    Put up the dyno sheet.
    MK4 GTI: Custom Code Stage 2, K03S, 42DD exhaust, Bilsteins, whiteline F&R, 312mm brakes
    MK6 GTI: MY13, DSG , very stock
    Ducati 749

  3. #3
    Join Date
    Apr 2006
    Location
    VW Race HQ - Sydney
    Posts
    1,219
    Users Country Flag
    Thats about right . Bigger intercooler with a ko3 is a waste , you just dont generate enough heat to justify anything much bigger than stock . You'll actually loose power due to pressure drop . Also no downpipe means turbo cant breathe properly . You need to add a downpipe and fit at least a ko3s and change your fpr to 4.5 bar and you'll see significant increases
    Bug_racer supports the rebellion of the euro revolution

  4. #4
    Join Date
    Dec 2008
    Location
    sydney
    Posts
    194
    I've overlooked the fuel pressure, won't a tune regulate that automatically? If not, how would you adjust it manually.
    I'm fitting a K03S and 3inch turbo back (42DD) exhaust this week and then a tune.
    MK4 GTI: Custom Code Stage 2, K03S, 42DD exhaust, Bilsteins, whiteline F&R, 312mm brakes
    MK6 GTI: MY13, DSG , very stock
    Ducati 749

  5. #5
    Join Date
    Sep 2010
    Location
    Melbourne, Victoria
    Posts
    370
    Users Country Flag

    Fuel pressure will only help if you're running short on fuel; and yes you will need a retune if you do so.

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