Program and Data Log from one program. No more switching between programs to get your Holley 4Di system tuned (Requires EPROM version V324 or higher).

Record and display all 4Di Electronic Control Unit (ECU)  supplied data in real time

View all 4Di ECU supplied data simultaneously

Auto Analyze collected data

	Recommends fuel map corrections to your .216 or .316 file
	3-D surface chart and table show recommended corrections

Calculations

	Engine Air Flow Requirements (Throttle Body Sizing)
	Engine Fuel Requirements (Fuel Injector Sizing)

Chart all ECU supplied variable data

	Chart in real time Chart and save data at the same time (PC with 100 MHz 486 processor or better recommended)
	Chart saved data

Save collected data to disk

	Save to a new file
	Add data to an existing file  Screen marker (staple) will show where new data starts
	Tap space bar to add screen marker to file at any time while recording

Selectable data collection interval

	0.125 and 0.25 Second Useful for short duration Dyno and ¼ mile runs Monitor performance during acceleration testing
	0.5 Second Initial program testing
	0.75 Second Medium term testing
	1 Second Long duration testing
	Optimized Fastest sampling rate allowed based on your PC’s speed and the ECU ’s ability to respond to a request for data.

Display multiple charts - All data items can be charted at the same time on high resolution monitors

Assign 1 of 16 colors to each chart

Assign 1 of 16 colors to chart background

Automatic scaling of chart data

Automatic alignment of displayed chart record lines

	Allows immediate cross reference of charted data
	Determine problem areas at a glance

Zoom, Un-Zoom and Scroll

	Unlimited zoom allows detailed analysis of data
	Automatic scaling while zooming
	All displayed charts zoom as a group
	Scroll charts left or right while in normal or zoom mode

Print displayed chart(s)

Copy displayed chart(s) to clipboard