That rule kept me from using a Racepak. New for 2018 data recorders are now legal in Pro et.

copied from et section
COMPUTER
Prohibited. See General Regulations 9:1.
DATA RECORDER
Data recorders are permitted in Advanced E.T., Super Pro,
and Pro only. Data recorders (except for “playback”-type
tachometers) are prohibited in all other E.T. classes. See General
Regulations 9:2.

Last edited by Just-a-dart; 09/17/18 08:46 PM.

"Just a Bracket car dressed up like a streetcar"