is a class in drag racing
. The E.T. Bracket categories are no-electronics classes. Delay devices
, throttle stops
, air shifters
, etc. or any device that transmits real-time, on-track data to the driver or any remote location are prohibited. All applicable NHRA
rules apply based on elapsed time.
E.T. Bracket classes use a .5-second, full-countdown Tree.
Restricted to one, 4-cylinder, overhead cam
, production-based automotive engine. Maximum displacement 2.8 liter (170.75 cid). Engine swaps permitted; engine must be from same manufacturer as body (For example, Rover K-series engine
into Austin Mini
or Austin 1100
or Citroën Saxo
engine into Citroën 2CV
). Redundant power adders, such as a dual stage nitrous system or twin turbos, will be counted as one power adder. All engine block
and cylinder head
castings must be, or have been, available in a production car or truck from a recognized OEM
assembly line with a minimum production run of 5,000 units. Transverse orientation may be converted to longitudinal orientation.
Open exhaust permitted, except where prohibited by track rules.
Only methanol, NHRA-accepted ethanol, or NHRA-accepted racing gasoline permitted. All other fuels prohibited.
Commercially available nitrous oxide
permitted, including for supercharged and turbocharged engines. Nitrous bottle(s) in driver compartment must be equipped with a relief valve and vented outside of driver's compartment.... Read More