SRT — Stage 1 ECU Tune
- Improved Power Output
- Improved Torque Delivery
- Enhanced Boost Control
- Optimized Fuel System Response
- Data Logging Calibration Refinement
The 2013 Jeep SRT HEMI benefits from a methodical Stage 1 file that addresses several key areas without requiring hardware changes. We've adjusted boost control mapping, wastegate solenoid duty cycles, drive-by-wire throttle response, and fuelling through the high-pressure pump and injector tables to suit 98 RON.
Workshop-supplied dyno results showed 218 kW at the wheels, up from 200 kW stock, with torque lifting from 424 Nm to 445 Nm. The file smooths out the factory calibration's conservatism while staying within safe margins for the standard rotating assembly and fuel system. It's a worthwhile step for customers after a more responsive street tune on pump fuel.
Why does a Stage 1 HEMI file touch boost and wastegate control on a naturally aspirated engine?
The 2013 SRT variant uses a 6.4L naturally aspirated HEMI, but the ECU platform shares tables with forced-induction applications. We optimise all relevant maps to ensure clean fuelling and throttle response.
What's the real-world difference with 18 kW at the wheels?
You'll notice sharper throttle tip-in and better mid-range pull, especially in higher gears during overtaking. It's not a night-and-day transformation, but the vehicle feels less lethargic off the line and more willing through the rev range.
Can this file run safely through an Australian summer on 98 RON?
Yes. The calibration is conservative enough for extended highway use and hot weather, with timing and fuelling dialled in for pump 98. No special fuel or additives required.
Workshop & Dealer Access
Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.
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