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  1. #31
    Join Date
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    Quote Originally Posted by S15R
    jdm s15 were running ok with 95RON and nissan recommended 95 RON too
    You have got to be fooking joking. Have you seen the mahoosive lean spot in the standard JDM map?! Wouldn't want to put 95 anywhere near that...

  2. #32
    Jono Guest
    Stupid Banbury, the best I can get in town is 97RON. No Shell Optimax and no Tesco 99.

  3. #33
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    Running stock boost or lower, 95RON might be OK. I wouldn't want to do it though.
    There is one way to find out
    Make sure you get a good knocking sensor and wideband lambda
    Nissan GTR -09 Now with Cobb accessport stage 2

  4. #34
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    Jez couldn't believe how lean the map was when he mapped mine.

  5. #35
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    I run mine of 97/98 optimax stuff, and runs lean when coming onto boost so i def wouldnt go any lower

  6. #36
    S15R Guest
    Quote Originally Posted by Nicely
    Quote Originally Posted by S15R
    jdm s15 were running ok with 95RON and nissan recommended 95 RON too
    You have got to be fooking joking. Have you seen the mahoosive lean spot in the standard JDM map?! Wouldn't want to put 95 anywhere near that...
    hmmm when mates dynoed their nz spec(jdm) s15, they were running rich
    only thing we found is that stock ecu runs very advance timing at the mid range

    im sure standard s15 runs 95RON fine but with mods dont go over 0.8bar

  7. #37
    Derek Guest
    I'm running 95ron with a 4 octane booster..

  8. #38
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    Brave man. Don't up the boost, will you...

  9. #39
    Derek Guest
    I'm running .9 bar boost. Why so brave man?

    Everyone in Ireland Runs Octane booster unless there car is mapped for 101ron. I'm using Millers cvl.

  10. #40
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    Have you seen how much octane booster with 95RON actually raises the RON rating? Not what the manufacturers claim - the actual amount. Its nowhere near as much as its supposed to be (unless you get the really expensive stuff). Certainly no more than 97/98RON. I don't recommend anyone run more than 0.8 bar without a remap. And that's running 97/98RON. Mine was detting its tits off mid-range running Opti above 0.8...

    However, its your car...

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