240Z data log for the 1/8mile at Irwindale drag strip.

NOTE: This is 383ci SBC with a HOLLEY 770 CFM carburetor.
Data log for 7.474 second 1/8 mile at 92.76 MPH. 60 foot time was 1.686sec.
They say that this should equate to a 11.8ish 1/4 mile time.
This is the run that got me thrown out of Irwindale for going too fast!!
TO READ THE GRAPH:
The line that goes straight to the top and stays there is the vacuum level. The axis scale is written in by hand. Obviously the whole run is at 0"Hg vacuum which shows the throttle was wide open.
The line that looks like a saw blade is RPM. You can see it going through two gears and into third.
The colored area should be read by reading the top most edge as a line. This illustrates the air fuel ratio.
Generic uses of my data logging system:
My Air Fuel Ratio Data Logging System can be attached to any car using this temporary attachment. I just put the sensor in a pipe and connect the pipe to the tail pipe. (I have it permanently attached to the 240Z so no wires are hanging out.