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Challenger SRT Hellcat
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Discussion Starter #1
I couple guys were asking me about aftermarket calibration to improve Horsepower and Torque. Its an additional step for you HellCat owners because of the encryption added to your computer. Most guys are buying a spare ECM and having a baseline OEM calibration loaded into the spare, and sending it off for modification.
Here's a link to have someone with HP Tuners access your computer:
2015+ Dodge Tuning (Important Information)

Enjoy,
Phil
 

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Challenger SRT Hellcat
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1,925 Posts
So there is no confusion,HP tuners PCM modification will not work with the Diablo system, Diablo has their own.
TC
 

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Challenger SRT Hellcat
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Isn't the spare ecm preloaded with all the hellcat info??
No, it's service that needs to be paid for, HP Tuners, Diablo, or Hemi tuner/Diablo
TC
 

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Charger SRT Hellcat
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375 Posts
Thanks Top Cat for clarifying this
I have wrenched before on a kenne bell setup and loaded tunes with the trinity before. I also have a spare trinity at the moment that I would like to use.
I would like to do a 2.75 upper pulley and a driveshaft
I see HHP has an ECU package, I can't seem to find info on the hemituner/diablo setup
Any recommendations ?

Thanks

zip
 

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Challenger SRT Hellcat
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Zip, HHP uses Hemituner for their ECU's, when you use HHP you get a lot of resources to go with the package, including all that we have learned in testing Linda's car.
TC
 

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Charger SRT Hellcat
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Right On, Thanks TC

will be calling them on Monday

PS - Do you think the stock crank pulley would need to be pinned with a smaller upper pulley ?
 
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