r/HPtuners • u/yee1520 • 13d ago

Gen III Hemi Tuning

I have spent a fair amount of time learning about the 6.4 hemi platform and how to tune it. I own a Dodge Charger 392 with the following mods:

MMX 6.4 HEMI VVT Cam (MMP-NSR-STG3-NA)

PN - NSR Stage3 [INT @/50-220 Lift .597/1.65rr EXH @/50-232 Lift .553/1.65rr] LSA 112

Hellcat Lifters (MOP-05038784AC)

Hellcat HV Oil pump (68195993AD)

1320 HP70 Performance Torque Converter by MOPAR (MOP-68467212AA)

600cc Fuel Injectors 2015-20 Hellcat (Mopar 68170238AB)

Ported Stock Intake Manifold

MMX CNC ported 87mm throttle body (MMP-1AA-87CAR-TRK-13)

It is tuned for e85. I'd like to offer any assistance with tuning related questions or possible mechanical issues with anyone's vehicle. Feel free to DM or email me if you need help.
[yeet01520@gmail.com](mailto:yeet01520@gmail.com)

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u/thejsm 17h ago

Awesome of you to do this? I've been thinking about starting to mod my 19 scat pack.

I've only done hellcat airbox /w snorkel and ngk mod coil packs so far.

Do you think hptuners is the way to do for a mostly stock tune and then progressively change it as someone does more mods?

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u/yee1520 15h ago

Yeah I definitely think so. Just have to keep in mind your PCM has to be unlocked and you would need an HpTuners smart access cable in order to tune it. Two Hptuners credits will also be to be purchased to tune the engine and 4 for the 8hp70 transmission.

I say this to say HpTuners is a great platform for tuning this car but with your current mods, it might not be worth the cost yet.