2.85 pulley and 93 octane tune hp

Discussion in 'SRT Hellcat General Discussions' started by 1EVLCAT, Apr 26, 2016.

  1. 1EVLCAT

    1EVLCAT Silver Member

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    I wanting to get some feed back on what type of hp gains you get with a 2.85 pulley and 93 octane tune?
     
  2. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

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    I responded to your message, but maybe some HC owners can post up here with their actual gains and with details on the tunes.
     
  3. slester1

    slester1 Silver Member

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    This is what I'd go with so I want to know also.
     
  4. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

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  5. Booky

    Booky Gold Member

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    I am also interested in this.

    If a 2.85" and 91 octane tune with give you 65-70 more hp, how much more could you expect with a 93 octane tune?

    Another 5-10 hp?
     
  6. Hammer Down

    Hammer Down Gold Member

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    Upper pulley and HHP 93 octane tune. 20160404_193007.jpg
    You can see a bit of timing pulled at 4k rpms. Injectors would probably sort that out but I opted not to do that. The only place you would notice it is on a dyno sheet.

    2.85 upper, HHP 93 tune and 180 tstat.
     
    Last edited: Apr 27, 2016
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  7. Hammer Down

    Hammer Down Gold Member

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    Here's the vid if you want it.
     
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  8. slester1

    slester1 Silver Member

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    Very Nice HP Gain with just a pulley, tune and stat. Looks like HHP moved the rev limiter to 6500?
     
  9. SRT MANG

    SRT MANG Silver Member

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    That's seriously crazy how less than $1,500 spent can net you such a nice jump in power.
     
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  10. 1EVLCAT

    1EVLCAT Silver Member

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    Wow looks like ill be giving HHP a call and place a order.Do you think the tune that HHP sends you is good without car being on the dyno?
     
  11. Rick@Metco

    Rick@Metco Gold Member Hellcat Supporting Vendor

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    ^ Yes.
     
  12. lghtemup

    lghtemup Senior Hellcat Member

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    omg I want to do this so bad after I get my drive shaft in and street slicks...that is great guys
     
  13. graycat

    graycat Automobile Aficionado Extraordinaire Staff Member

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    After meeting the Eplings (members here, father and son) I've decided on the 2.85 Metco pulley and an HHP tune. The only other two issues that I feel need to be addressed are 1. Pin the crank pulley (easy fix) 2. I've saw a few rocker arms break. Has anyone reading this switched to set of aftermarket roller rockers on a late model HEMI?
     
  14. 1EVLCAT

    1EVLCAT Silver Member

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    Cool me to.When are you ganna do?
     
  15. mggsrt8

    mggsrt8 Hellcat Member

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    Super strong numbers. What was your Stock HP & Torque numbers? I'm basically doing the same setup on my 2015 m6 hellcat next week. I assume it is like night and day so to speak regarding performance.
     
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