HARLEY DAVIDSON · HD J1850 ECU

HARLEY DAVIDSON Black Magic HD J1850 tuning files

Everything we work with on the HARLEY DAVIDSON Black Magic fitted with the HD J1850. Stock output across the matched variants spans 64–64 HP. There are 2 distinct variants on file for this combination. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. We match the right calibration to your exact software and validate it before delivery.

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Available solutions

What we can run on the HD J1850 for this vehicle — the precise options narrow down by engine and software version.

Stage 1Stage 2

Engine variants & ECU software

2 distinct variants for the HARLEY DAVIDSON Black Magic on the HD J1850 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
1690 64HP
Controller brand
DELPHI
ECU
HD J1850
Stock power
64 HP
ECU SW
242
ECU HW
31903-11A
SW upgrade
34281-11A

Variant 2

ECU
Catalog engine
1690 64HP
Controller brand
DELPHI
ECU
HD J1850
Stock power
64 HP

Related vehicles

Other vehicles built on the HD J1850 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the HARLEY DAVIDSON Black Magic on the HD J1850?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the HD J1850 ECU software on this model?

Yes — the HARLEY DAVIDSON Black Magic on the HD J1850 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.

HARLEY DAVIDSON Black Magic HD J1850 ECU Tuning Files | TuningBay