I always thought it was the delay box or whatever you call it. That lets you hold your launch RPM's 'til you let off the T brake. You know how the cars with electronics are staged and sound like they have a bad mis(hence the name "stutter box"). Until the light turns green. I really dont know what it is either. Im a street car guy. lol
:smt039yes it was a serious question. with all the electronics out there that are available for cars, rev limiters, programmable ignitions, 1-2-3 steps, etc. . When i heard the term stutter box, I kinda went What is that? what is it used for ? I am not use to all these new gadgets on race cars now days. The last time I drag raced was back in 1980; when turbo cars were laughed at and nitrous was just really becoming popular to use. Times have changed :smt023
Basically it's using a rev limiter set at a lower rpm to slow the car down near the top end of the track to affect your ET. Although "stutter boxes" are classified as illegal, using a throttle stop at the top end isn't and will do the same thing. The throttle stop is just a lot easier on the engine.
Maybe the sanction bodies feel using a lower rpm rev limiter at high speed has a better chance of blowing up an engine.