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Tuesday Tech Question presented by Evans Coolant



I have a Super Pro Dragster that I recently purchased and I’m getting it ready to race at my local NHRA track.  Looking at the ignition box it has an MSD 7531 is this legal?




No, in the 2018 NHRA Rulebook, Section 21, page 37, ignition, it reads ”The use of any programmable multi-point rev limiter and or a rate of acceleration rpm limiter, either by themselves (e.g.., MSD 7561, MSD 7761) or integrated into the ignition system (e.g., MSD 7531), is prohibited in NHRA competition."