The Most Precise Gen3 HEMI Calibration in Houston.
View HEMI PricingYour HEMI is capable of far more than the factory tune allows. Whether you're running a 5.7, a 6.4 SRT, or a Hellcat-based platform, proper calibration transforms throttle feel, torque, drivability, power delivery, and overall engine behavior.
Every modification — intake, exhaust, cam, converter, ported throttle body, injectors, or forced induction — requires a tune to run correctly. At More Power Houston, we specialize in **Gen3 HEMI calibration**, including **VVT control, spark modeling, torque strategy, fueling, cam tuning, boost management,** and **transmission optimization** for the driving experience your car was meant to deliver.
Daily, bolt-on, and cammed builds dialed in with clean drivability and strong midrange torque.
The 392 responds aggressively to tuning — especially big cam combinations. Expect stronger throttle, tighter fueling, and big power gains.
Pulley ratio setups, E85 transitions, upgraded pumps/injectors, and max-effort 800–1100hp calibrations with precise safety margins.
HEMI engines rely heavily on torque management, airflow modeling, and virtual volumetric efficiency. If these systems aren’t calibrated correctly, your car will never run right — especially with cams or boost.
You get a tune that feels OEM-clean — but with real power when you want it.
Enter year/make/model and pick a build. We'll detect the platform and give you a clean estimate you can book.
Fast estimate. Final price may vary depending on model, year, and diagnostics.
Most cars are completed same-day. Big builds may require additional logging.
Yes — we specialize in flex fuel and full E85 conversions.
Yes, using HP Tuners or DiabloSport depending on platform.
Houston-based tuning for real enthusiasts.
tuning@morepowerhouston.com