The Dyna DRL-400 Two Stage Rev Limiter has been
specifically designed to maximize launch performance and over-rev protection in
drag racing.
The DRL-400 allows a precisely controlled launch rpm
limit to be set, while also guaranteeing against over-rev damage due to missed
shifts or drive train breakage. Selection between the launch limit and the upper
over-rev limit is usually made through the use of a clutch lever switch. Both
rpm limits are adjustable via two knobs on the DRL-400.
The DRL-400 constantly monitors the engine rpm with
great precision and randomly deletes ignition pulses to hold the engine exactly
at the desired rpm.
The DRL-400 can hold a 270 horsepower engine to a
steady launch rpm with less then +/- 50 rpm wavier. Other launch rpm limiters
typically make the engine rpm waive through a pounding oscillation. This can be
very hard on expensive racing components.
The DRL-400 works with all inductive electronic
ignitions on 2 and 4 cylinder engines. It is housed in a 3 3/4" x 2 3/8" x 1"
plastic case with integral mounting flanges.
DRL-400 Features:
Accurate launch limiting with 32 different settings
Smooth, non destructive launch limiting
Adjustable high limit between 16 different settings
Will NOT work on motorcycles with coil on plug
"stick" coils