Toyotec's 2.0 16v MK2 dyno comparison. ABF (Digi vs Kjet vs MS) vs 9A MS. P3 14-11-10

Discussion in '16-valve' started by Toyotec, Oct 6, 2010.

  1. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    The downpipe and exhaust system are 8v MK2 items as in Dav's car. My mistake for stating 16v d/pipe so both cars are equal in this respect.
     
  2. badger5 Club GTI Sponsor and Supporter Trader

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    DD replicates a "accelometer such as a Gtech-Pro " (used in 2nd/3rd)

    inertia of vehicle being quite some damping being my point on smoothness of plot resolution in that sort of comparison. (and by smoothness, I mean coarse resolution)
     
  3. Ben S

    Ben S Forum Junkie

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    Dan,

    as per Toyotec just said later mk2 8V item with no catalyst or decat pipe
     
  4. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    That is my quote including poor spelling of accelerometer, where I said "the torque profile as seen in the DD device has been replicated on a Gtech Pro device in 2nd and 3rd gear".

    My reason for making that statement is to correlate the dyno's measurement for power and torque profiles to real life vehicle acceleration. I have seen and witnessed many dyno plots ( from other types of machines) for similar engines, with STD Siemens ECUs, where the torque seems to peak at 6000rpm when there is massive over fuelling, calibrated to protect components at this break point. This will kill torque off thus making the peak in a std engine closer to ~4600rpm where the lambda is closer to 0.86.
    This correlates to the WOT tables in the factory ABF map.
     
    Last edited: Oct 7, 2010
  5. badger5 Club GTI Sponsor and Supporter Trader

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    I'll post up a couple I have run which shows what I am saying.. pictures speaks a 1000 words and all that.

    cheers
    bill
     
  6. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Bill please pm me the results as I will like to keep this thread on topic. Cheers.
     
  7. emery1990 Forum Member

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    SO the MS 9A is the worse out of the bunch lol great.
     
  8. Admin Guest

    Great thread Eddie, very interesting results, I would never have thought the 9A would have been so far behind in fiqures! Do you think it is a 9A vs ABF trait or just that the individual engine is a little tired?

    Must say its the first 9A i have seen on the rollers. Well done.
     
  9. emery1990 Forum Member

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    Thats what ive just bought my ms for, to do my 9A ,with figures like that it sounds poop. lol
     
  10. Brookster

    Brookster Paid Member Paid Member

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    9A ?

    My old 1.8L KR was 154bhp & 130lb/ft on k-jet (42mm inlet) std cams and that was on 3 different rolling roads (The Golf Issue 1 rolling road session)
     
  11. possle Forum Member

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    how might i ask?
     
  12. prof Forum Addict

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    my 1.8 made 158bhp at stealth, but probably 139 everywhere else ;)
     
  13. badger5 Club GTI Sponsor and Supporter Trader

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    will do ( to respect your thread) - i will post them in my section for a reference
     
  14. badger5 Club GTI Sponsor and Supporter Trader

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    abf 10.8:1 compression no?
    9A/KR 10:1
     
  15. drunkenalan Paid Member Paid Member

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    sticks head in and asks where is the torque? the runs back to the 8v section...
     
  16. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    The engine is not the newest of 16v engines. There is more in it but possibly no more than an ABF on K-jet (not tested yet) which will be still pretty fast.
     
  17. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    2.0 16v = 10.5:1 CR
    KR= 10:1
     
  18. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    For the benefit of those reading this thread and based on your recently stated thread, the "classic " dip from manifold pulsing is here on these profiles at 3500rpm. You can actually hear a change in engine note as it accelerates out of this dip. But based on my choice of breakpoints the plot is stretched along the X axis and compressed on the Y axis, unlike the way other dyno operators choose their scaling.
    Nothing untoward with the dyno there. Not that I expect it to be.
     
    Last edited: Oct 8, 2010
  19. Toyotec

    Toyotec CGTI Committee - Happy helper at large Admin

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    Yes but we are not necessarily comparing peak 1.8 16v numbers here.
     
  20. Admin Guest

    Interesting, i hope to have mine back up to you are some point to finish off the mapping and eak out that little extra, swing the cams and smooth the map etc. Just have to wait until i have put back together the cooling system and finish making a few new things...

    Im surprised at the torque differences between these three cars and Gurd's, his really does seem to be in its own league and possably not the best car to use as base level for the an ABF EFI? maybe it would better to use these results as the base line figures?
     

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