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Can the Cam?

Discussion in 'VF Holden Commodore (2013 - 2017)' started by 426Cuda, Dec 31, 2018.

  1. dimetime

    dimetime Active Member

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    another good option for the cam

     
  2. 426Cuda

    426Cuda SUBLIME!

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    received_300001054036090.jpeg
    Wagga to Sydney yesterday. Tuned L77 on 98Ron. On cruise 120k's all the way. Bar a few spirited overtakes. Up to 44° heat for a large part of the trip. It's an uphill journey for the most part.
    Best for 25k's was 6.2L
    Best for 100k's was 6.9L.
    I'll improve significantly on all those measures on the trip home. I can't get close to this in my (LS3) Motorsport.
     
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  3. immortality

    immortality Can't live without smoky bacon! Staff Member

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    That's probably significantly better economy than you will get here in NZ, we don't have the long stretches of motorways that are most economical. Going anywhere other than in the main centres means a lot of hilly/windy roads. I don't get that in a V6 even when driven nicely around here.
     
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  4. Banjo79

    Banjo79 Active Member

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    Great economy. Do you have AFM still doing its thing?
     
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  5. blackve76

    blackve76 Well-Known Member

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    Just drove Adelaide to Sydney in our 14 Prado avg 9.9l hell it was hot got 45 in one spot
     
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  6. 426Cuda

    426Cuda SUBLIME!

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    Yeah it's hot as Hades!
     
  7. 426Cuda

    426Cuda SUBLIME!

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    Yeah, I had AFM tweaked in the tune. It cuts in sooner and hangs on longer on inclines. So, a broader operating range for the AFM. Well that's what I asked for anyway...
     
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  8. 426Cuda

    426Cuda SUBLIME!

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    Too true mate. That makes all the difference.
     
  9. bbunnys

    bbunnys Member

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    Ok so seems with good tune it wont be to much worse with a cam. No way I could get economy you guys in Australia get. Roads I travel on are hilly and windy. Im stoked to get 11-12 L/100 km
     
  10. rognvald261

    rognvald261 Active Member

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    Cam and gears need to be planned really, but as a general rule a low to mid 20s duration cam will be more efficient at 1800 than high 20s early 30s.
    Also a late intake close like that is going to run cool on highway and have less swept volume than the stock cam.
    From 3600-4500 there is no comparison, the late intake close / decent overlap uses more fuel than stock.
    So drive yer cammed V8 like a Prius and you likely get better than stock on flat highway given same gears. Give it a squirt as appropriate on-cam mid-range due to hilly terrain and nah, sorry. It is a big volume, built for mid range punch, no getting around that.
     
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  11. SS Flo Rida

    SS Flo Rida Active Member

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    Yeah its not excessive push I drove my ss for about six momth with the cam and standard TC but in traffic what you describe drives me nuts especially in a motor with a bit of a stick in it. Even a small stall ugrade would make it more comfortable in traffic. If you dont have this problem I evny you.
     
  12. tml678

    tml678 Well-Known Member

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    Not to mention your disgraceful fuel prices..
     
  13. vr304

    vr304 Well-Known Member

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    Yea no kidding mate!! Having said that I put 3 months rego on my VE SS the other day it cost me a grand total of $25 so there’s some give and take
     
  14. tml678

    tml678 Well-Known Member

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    Well that more than makes up for it then! Do you guys still have to buy diesel kms over there?
     
  15. immortality

    immortality Can't live without smoky bacon! Staff Member

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    Yep, still buy diesel Km's here. I did the rego on our's just before xmas and it was about $100 for a year IIRC and to think, the majority of that cost is ACC levies (which will most likely be going up again soon).
     
  16. bbunnys

    bbunnys Member

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    So after talking with local shop and trying to figure out best cam for my car. Suggestion is I go for a 228/236 with either 112 or 113 lobe with .600 lift.
    Is anyone running this as seems not the most common cam. My aim is for mid range power.
     
  17. rognvald261

    rognvald261 Active Member

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    Well is a massive duration, not needed unless you’re racing upper mid to upper.
    Likely a handful cruising.
     

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