110 octane in my hellcat charger

Discussion in 'SRT Hellcat Performance' started by HellCharged62, Jul 16, 2015.

  1. HellCharged62

    HellCharged62 Rookie

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    How much 110 octane can I add to my tank.
     
  2. digdug33071

    digdug33071 SRT Hellcat Supporter Gold Supporting Member

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    The issue at least at the West Palm Beach Raceway was the nozzle. Anything above 100 octane had a much larger nozzle and wouldn't fit in the hellcat. I put in half a tank of 100 octane mixed with 93 octane and could barely noticed a difference. I've read theories that using higher octane ignites too fast in the piston chamber causing timing to be off.
     
  3. Lighty

    Lighty Silver Member

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    Higher octane is normally slower and resists pre-ignition or knock due to high compression.
     
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  4. Top Cat

    Top Cat Gold Member Hellcat Car Club Gold Supporting Member Fastest Cat/Record Holder HCC Charter Member

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    The higher octane may make you slower, Linda's fastest pass was on a good grade 93 only, if you don't have a good 93 add about 2 gal per 1/4 tank to bring up the 93.

    BTw, are you using VP Extreme or something else, also make sure it's unleaded and not oxygenated
     
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  5. pinetreecat

    pinetreecat Gold Member

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    there's alot of different fuel out there with different octane: look for UNLEADED fuel so you don't wipe out your O2 sensors. You can get 100 + in unleaded or leaded versions so read the labels and buy from known sources (like race trackS)
     
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  6. HellCharged62

    HellCharged62 Rookie

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    I just did a half of 93 oct and a half of 110
     
  7. Hemi1632

    Hemi1632 BANNED

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    TC is correct, For a non modified car to much octane will slow you down.

    Higher octane fuel has a slower burn rate and is less combustible thus preventing pre detonation or knock or ping... The best power an engine will make is just before it pre detonates.

    A good 93 should be safe and give you the best results.
     
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  8. Hemi1632

    Hemi1632 BANNED

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    Hey TC,
    What are the negatives of running an oxygenated fuel?

    I have used it in some bikes we run and seen good results.
     
    Last edited: Jul 17, 2015
  9. Deputydog

    Deputydog Gold Member

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    Any benefits of using ethenol free 91 octane?
     
  10. soundman5000

    soundman5000 Silver Member

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    Years ago I ran Sunoco blue straight, 5 gal in a stock Harley. Destroyed all my carburetor gaskets ( ended up replacing the carb). did something to my valve seat ( returned to normal after running normal gas and 100 miles) The Petcock ( Gas tank cut off) rubber o-ring got so tight I could not move it. A little Marvel Mystery oil in and a change to normal gas and that o-ring became slick again but that blue gas did not play nice with stock gaskets and o-rings on a Harley. My exhaust pipes that normally a bit sooty ( I run rich) were clean as new with that race gas.
    I have no experience with race engines but Im kinda scared of race gas after my experience and would wonder just how safe it is in any factory car?
     
  11. Hemi1632

    Hemi1632 BANNED

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    Tuff question, I have only had my cat for a week so I haven't got to test. But I will tell you that I like fuel that is ethanol free. One result from adding ethenol to gas is that it raises octane. Another is that ethenol attracts water to your fuel system, another is that ethenol starts decaying almost all parts that it comes into contact with. This is why I like pure gas. Now the car was designed to run on 91, but I would rather be safe and run 93. so if you could find ethenol free 93 I think you would be sitting pretty!
    If you can't find ethonol free 93 you could add torco accelerator to the 91 and raise it to 93.

    Amazon.com Torco F500010T Unleaded Fuel Accelerator - 32 oz. Bottle Case of 6 Automotive

    I think you can buy one can at a time also, just a little more money.
     
    Last edited: Jul 17, 2015
  12. VanishingPoint

    VanishingPoint Silver Member

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    Some of the benefits of running a VP gas (say 109) is not so much the octane, as the gas volatility. For me, I think running a half/half mix of 93 and 109 gives me something like an octane of 95, which gives me now worries under full/unusual loads and summer heat but I have yet to try this, so it is pure speculation right now.
     

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can you run 110 octane in stock hellcat