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Mafless Tune Surprised and Disappointed!

Discussion in 'VY Holden Commodore (2002 - 2004)' started by cosmo94, Jul 26, 2006.

  1. cosmo94

    cosmo94 New Member

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    Im keen to hear from anyone who has had a mafless tune. I had my VY series 2 SS ute Mafless tuned. Already had K&N airfilter, Extractors, high flow cats, 2-1/2"cat back system, car only done 12k. Pre tune only pulled 180kw post tune 212kw. I drove car prior to getting figure and was blown away how good it felt and the responsiveness and pick up but :supersad: when i was told only got 212kw, good gain but still a poor figure i reckon. Any 1 else had similar or have i been jipped! Car does have low kms and still tight but 212kw from a GEN3 is almost laughable!
    Any feedback at all welcome!!!!!:bang:
     
  2. AMAGDN

    AMAGDN New Member

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    thats 212kw at the wheels which is somewhere in the vicinity of 265-270kw at the motor which is a total of 20kw gained over std, that is a bit lower than others i have heard of with similar mods but maybe with the higher output already from holden the mafless doesnt gain as much, but the proof is in driveability
     
  3. vyssls1

    vyssls1 sw only EFILIVE Tuner

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    :) i had 180 rwkw before tune.after 249 rwks (mafless tune, 1 3/4" 4 in 1 pacemakers, dual 2 1/2" ,25% underdrive and otrcia)
     
  4. Evman

    Evman New Member

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    sorry what's otrcia?
     
  5. minux

    minux Infidel Bear

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    go headers and an otrcai, on a conservative tune i am pulling 238 rwkw.
     
  6. rousey

    rousey New Member

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    VU SS A4 - 11.80 @ 120mph, 1.9 sec 60'
    oooooooooooooooooooooooooooo
     
    Last edited: Jan 28, 2011
  7. cosmo94

    cosmo94 New Member

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    Thanks for the heads it was certainly a shock, guess i was thinking of all they hype around the 300kw magic figure and hoped to come close.
     
  8. davey g-force

    davey g-force I'm a sceptic...

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  9. rousey

    rousey New Member

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    VU SS A4 - 11.80 @ 120mph, 1.9 sec 60'
    oooooooooooooooooooooooooooo
     
    Last edited: Jan 28, 2011
  10. klaw81

    klaw81 New Member

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    I had my SV8 auto tuned with no modifications at all and still got 205rwkw! (Dyno Dynamics Shootout mode) I know there's a bit of difference between dynos but that does sound a little disappointing. I know I would have been a little disappointed if I'd spent that amount of cash.

    Perhaps try a different dyno - even if you don't pay for additional tuning and just do a few runs to compare.
     
  11. Just_Ice

    Just_Ice New Member

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    Like all the others have said Dynos are a tool for tuning, not a real indication... My VX SS Headers, exhaust and Maf tune only made 196.7rwkw... I was totally dissappointed with that, but it feels great and a totally different car to drive...... Has pulled a 13.8 at the track which is not to shabby I don't think....
     
  12. vy1sv8

    vy1sv8 New Member

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    speed is indeed the best indicator, i use the gardens along anzac pde as markers and gun up there, the faster i am at a certain point im gathering is meaning a mod was a good one :). dynos can be terribly inaccurate, and obviously vary a hell of a lot. But dude no stress :)
     
  13. cosmo94

    cosmo94 New Member

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    agree the drive is so much better, response is instant and at the end of the day Dyno figures are a littlebit of a W**k!
     
  14. rousey

    rousey New Member

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    oooooooooooooooooooooooooooo
     
    Last edited: Jan 28, 2011
  15. davey g-force

    davey g-force I'm a sceptic...

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    Is your car still completely standard other than the edit? If so, running low 13's is pretty awsome!

    I'm just wondering what the effect would be of getting just the tune. My VY SS is stock at the moment and I'm not into loud exhaust etc any more (I must be getting old!). Or do I really need an exhaust / cai to get the best from the tune?
     
  16. klaw81

    klaw81 New Member

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    No, you don't need any add-ons to get some extra power, since the standard V8 is tuned quite poorly. I'm not sure if this is a deliberate marketing strategy to keep the "halo cars" significantly faster, or just "insurance" against abuse and potential breakages. If course, if you do have some mods done, you can get more benefit from the mods by having the engine re-tuned.

    My VY2 SV8 is totally stock, no air filter, muffler change or even a sticker. It was dynoed stock at 240rwhp. After a tune using HP Tuners LS1 Edit(?) software it made 270rwhp. This is not a aggresive or dangerous tune - you'd never know the difference during the daily drive. Gains were across the entire rev range but most significant in the 4000-6000 rev range. I also had the speedo recalibrated and the auto shift points tweaked.
     
  17. davey g-force

    davey g-force I'm a sceptic...

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    Thanks for that klaw. :thumbsup:

    240 rwhp sounds high though. They were meant to have 235 hp at the flywheel standard!

    Still, an increase of 30 rwhp is significant for a tune only. I think I'm gonna pop into Morrano's here in Sydney on my next day off...
     
  18. klaw81

    klaw81 New Member

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    You've got your figures & units a bit skewed....the VY was originally rated at 230kW (not HP) at the flywheel. The VY2 was upgraded to 245kW at the flywheel. Allowing for drivetrain losses, 240HP (205kW) at the wheels is about right for an auto - a manual would give a little more.

    Cosmo34 you're right that results between dynos are often variable, which is why they should only be used as a comparison...but there's nothing wanky about comparing figures before and after each modification. That's a very valid and useful measure of "bang for buck" comparison, and the basis of all modification R&D. However, on-the-road performance is what we're all interested in, at the end of the day it's the only thing that really matters.
     
  19. davey g-force

    davey g-force I'm a sceptic...

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    Derrr! Sorry bout that I got mixed up... :hit:
     
  20. SweetWagon

    SweetWagon booosted

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    Could anyone enlighten me as to what a mafless tune is, I know what a maf is so im guessing its a tune without the maf? If so, by the looks of things there are some fairly good gains from them.
    thanks
     

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