Upload your Holley Sniper EFI datalogs for instant analysis
How it works
What this tool does
Parses your Holley Sniper EFI datalog files and runs automated analysis
on fuel trims, timing, IAC position, coolant temp, battery voltage, and more.
Get instant results, or wait for a human AI-assisted review with tuning recommendations.
What to upload
Datalogs: .dlz or .dl files
Config: .sniper global config file
Upload multiple datalogs to compare different driving conditions (cold start, highway, idle). Include your .sniper config for the best analysis.
Where to find files
Pop the SD card from your Sniper handheld and plug it into your computer. Look for:
Datalogs: Saved Datalogs\
Configs: HOLLEY\FW0200\Saved GCF\
The drive letter varies — check whichever drive your SD card mounts to.