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Thread: 3.5 V8 Compression Ratio

  1. 14th November 2013, 05:05 PM #1
    malrv1 Guest

    3.5 V8 Compression Ratio

    Hi Will a 9.35:1 3.5 V8 run on our 91 RON unleaded OK?? I know in the UK there standard unleaded is 93 RON.
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  2. 14th November 2013, 05:07 PM #2
    Pedro_The_Swift's Avatar
    Pedro_The_Swift
    Pedro_The_Swift is offline The MOD Father
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    The filler cap sticker on my hi-comp 4l says premium,,,
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

    [IMG][/IMG]
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  3. 14th November 2013, 05:08 PM #3
    djam1's Avatar
    djam1
    djam1 is offline ChatterBox
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    I run mine on it without issue if it pings just change the timing slightly
    It doesn't perform as well as the higher octane fuel but it works fine
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  4. 14th November 2013, 07:02 PM #4
    Homestar's Avatar
    Homestar
    Homestar is offline Super Moderator & CA manager Subscriber
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    Mine ran fine on 91, but with 350,000KM on it, I doubt the compression was as high as it was when it left the factory...
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
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