Race fuel...

Discussion in 'General Automotive Discussion' started by HellcaTim, Oct 16, 2015.

  1. HellcaTim

    HellcaTim Hellcat Member

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    Can I use 104 octane and not worry about the cats on the car?
     
  2. cfuels25

    cfuels25 Gold Member

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    I wouldnt....will ruin your o2 sensors forsure...unless you have a tune on the car?
     
  3. HellcaTim

    HellcaTim Hellcat Member

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    No, no tune. I always run 94.

    Just have some nice cool air tonight and figured I'd ask for possible better time.

    Spinning is my real issue. I'm trapping 121 to 123.+

    But best time so far is 11.990 with nothe launching coming off of idle and spinning and wheel hop.
     
  4. DGatzby

    DGatzby Gold Member Hellcat Car Club HCC Charter Member Midwest Regional Pres.

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    You know guys too much of a good thing..... In this case the valves can be damaged with the high octane.
     
  5. 70Cuda

    70Cuda Yep, its got a HEMI

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    make sure its unleaded fuel, with no custom tune I would not add much just a couple gallons to mix up your gas already in the tank. Also avoid the AV fuels ( not for cars but for planes).

    Leaded fuels will destroy your cat
     
    • Agree Agree x 1
  6. themarshall

    themarshall Silver Member Hellcat Car Club Gold Supporting Member HCC Charter Member

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    Yo Hellca Tim, I have run VP109 in my Hellcat with some good results. 11:51@125mph Maple Grove PA. Before VP109 11:75@121mph A8 at about 30% mix $$$$ $10 gal around my area. Car runs well, no problems.
     

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