Custom Remote Tune
Built from your stock read with private Tune Portal delivery, datalog review, and revisions to refine the calibration.
Starting at $269.99Build Custom TuneHEMI Cam Specialists
HEMI Cam Tune Files for RAM, Charger, Challenger, 300, Durango and Jeep Builds
Remote cam tuning for supported 5.7L, 6.1L, and 6.4L HEMI combinations. The correct path depends on the vehicle, year, PCM, camshaft, MDS and VVT hardware, transmission, converter, exhaust, intake, fuel system, and forced induction.
Choose by outcome
Three tune paths. No blurred promises.
Vehicle selections stay consistent while the delivery, revision level, compatibility rules, and customer responsibility change.
Base Tune
Designed for startup, idle, and initial drivability. Includes one revision and does not promise the final refinement of the full custom path.
$169.99 • One RevisionStart Base TuneDownloadable .HPT
Prewritten Compare and Copy reference files. Exact compatibility is required and custom remote revisions are not included.
Starting at $99.99Browse Downloadable FilesWhy this page exists
Choose by platform and hardware—not by HEMI badge
RAM trucks, LX/LC cars, Durango, and Jeep applications can use different controller, security, transmission, and torque-management strategies even when the displacement matches.
5.7L HEMI
Camshaft, MDS hardware, VVT configuration, intake, exhaust, converter, transmission, fuel, and PCM status.
6.1L / 6.4L HEMI
Vehicle-specific cam, displacement, transmission, airflow, fuel, security, and supporting-hardware details.
Boosted HEMI
Hellcat-blower conversions and other forced-induction builds use the Custom Remote Tune path with complete injector and fuel-system data.
HEMI cam calibration
Match the vehicle platform—not only the HEMI displacement.
RAM trucks, Charger, Challenger, Chrysler 300, Durango and Jeep applications can use different PCM, security, transmission and torque-management strategies even when they share a 5.7L, 6.1L or 6.4L badge. The correct cam tune starts with the exact year, vehicle, engine, PCM and stock read.
| Build area | Information required | Why it matters |
|---|---|---|
| Camshaft | Manufacturer, part number/cam card, springs, pushrods and installed timing | Defines airflow, idle and valvetrain requirements |
| MDS | Retained, tune-disabled or mechanically deleted | Calibration must agree with the installed lifters and hardware |
| VVT | Retained, limited, locked or deleted | Phaser control must match the mechanical configuration |
| Drivetrain | Transmission, converter/clutch, gear and tire size | Changes idle load, torque response and drivability |
| Fuel/air | Injectors, fuel type, intake, throttle body, exhaust and boost | Defines the supported airflow and fueling path |
Naturally aspirated cam swaps
Confirm valve springs, pushrods, lifters, phaser hardware and mechanical timing before flashing. Resolve exhaust leaks, vacuum leaks, misfires, low fuel pressure and sensor problems so the first datalog represents the calibration rather than a mechanical fault.
Boosted HEMI combinations
Hellcat-blower conversions, turbo systems and other boosted builds require the Custom Remote Tune path unless an exact product explicitly states support. Include compressor, pulley/boost, injectors, pump, fuel type, MAP/MAF strategy, intercooling and transmission details.
What the product groups mean
Remote Tune products use the vehicle’s stock read and the workflow stated on the product. Downloadable .HPT products are exact-match Compare and Copy references without custom remote revisions. Physical HEMI parts, MPVI devices, Tune File Bundles and internal checkout add-ons are intentionally excluded from this page.
Complete catalog matches
HEMI cam tunes and downloadable files
Only supported HEMI tuning services and downloadable tune files are displayed here. J.R. Jones Racing LLC does not list physical HEMI parts for sale on these engine pages.
Tuning device required: You must have an HP Tuners MPVI2, MPVI3, or MPVI4, or an EFI Live device supported for your vehicle. J.R. Jones Racing LLC does not currently support RTD or TDN devices. RTD/TDN support is planned for the future. Check device requirements.
Need an interface? You can add an HP Tuners MPVI4 to your tune at the bottom of this builder if you would like to purchase one through J.R. Jones Racing LLC. Vehicle credits are sold separately.
Build Your Tune Package
Verified Vehicle Match
Cam Not Listed
Enter Cam Card Specifications
Enter the specifications shown on your cam card. Durations must be measured at .050-inch tappet lift—not advertised duration.
Calculated JRJ Cam Tier: —
Camshaft tuning add-on: —
Choose Your Path
Choose Your Tune Type
Full Custom and Base support listed modifications. Downloadable .HPT files cover only an exact supported cam or delete calibration with no modification add-ons. FIRSTTUNE20 is not valid on downloadable or pre-written .HPT/.CTZ files.
HP Tuners Credits are sold separately at HPTuners.com.
Your Tune Match
Choose year, make, model, engine, and cam selection.
Price Breakdown
Complete your vehicle selections—
Total
Select Vehicle
Need an HP Tuners interface?
Purchase an MPVI4 below to include it in the same order as your tune. Vehicle credits are sold separately.
Final Build Summary
- Vehicle
- Not selected
- Engine
- Not selected
- Transmission / Drivetrain
- Not provided / Not provided
- Cam
- Not selected
- Tune Type
- Not selected
- Modifications
- None Selected
- Blowers
- LSA: No; Hellcat: No
- Total
- Select vehicle
Before checkout
Questions specific to this page.
Every structured answer below is also visible to customers. No hidden FAQ content is added for search engines.
Can one HEMI cam tune work for RAM, Charger and Jeep?
No. Platform, PCM, security, transmission and operating-system differences must be matched.
What cam information is required?
Provide the manufacturer, part number or cam card plus installed springs, pushrods, lifters and timing hardware.
Do I need to state MDS status?
Yes. State whether MDS is retained, tune-disabled or mechanically deleted.
Do I need to state VVT status?
Yes. State whether VVT is retained, limited, locked or deleted.
Can a Hellcat-blower conversion use an instant file?
Only if an exact product explicitly supports the full hardware and fuel system; otherwise use Custom Remote Tune.
Will tuning fix a HEMI tick?
No. Diagnose exhaust, valvetrain, oiling, ignition, fuel and mechanical causes first.
Are HEMI parts displayed?
No. J.R. Jones Racing LLC does not list physical HEMI parts for sale on HEMI engine pages.
Which devices are supported?
HP Tuners MPVI2, MPVI3 or MPVI4 and specifically supported EFI Live devices. RTD and TDN are not currently supported.