Congratulations! You have purchased the ACCEL 3-STAGE REV-LIMITER. This unit allows you to program three different rev-limits and make use of two different RPM-activated switches. These rev-limits and switches can be particularly useful to Drag Racers. You must use your ACCEL 3-STAGE REV-LIMITER with one of the ACCEL+ ignition modules. Use ACCEL 300+ RACE WIRE spark plug wires! Solid-core spark plug wires emit RFI and EMI static, which can disrupt On-board electronics.
THE 3-STAGE REV-LIMITER - AN OVERVIEW our new ACCEL 3-STAGE REV-LIMITER is a computer module. It is meant to be installed etween the ignition trigger device (distributor pickup, crank trigger, etc.) and an ACCEL+ nition module. It controls the signals that tells your ACCEL+ ignition when to fire. n addition to the trigger input, your ACCEL -Stage Rev-limiter uses two additional puts to select rev-limit values. Both of ese inputs may be connected to any type f switch to activate selected rev-limits.
CONNECTING THE ACCEL 3-STAGE REV-LIMITER TO AN ACCEL IGNITION SYSTEM he ACCEL 3-Stage Rev-limiter uses special signals to communicate with your ignition module, and your 3-Stage Rev-limiter can only be used with an ACCEL ignition module. or your rev-limiter to communicate with your ignition module DIP-Switch-4, inside the gnition module, must be re-set UP. • Open the ignition module’s cover plate (the one with the wires coming through it).
After you have completed the wiring (according to diagrams detailed later in this ocument) you must do some basic configuration of your ACCEL 3-Stage Rev-limiter. SELECTING THE NUMBER OF CYLINDERS 1. With the unit powered off – press and hold down the SAVE and SHIFT LIGHT buttons. 2. While holding those buttons down, apply power to the module. The module will now display the (factory default) number stored that represents the number of cylinders in an engine. 3.
CONNECTING THE WIRING HARNESS THE SQUARE, 4-PIN, FEMALE CONNECTOR outputs directly to your ignition system. When correctly installed, this connector is a simple plug-in. HE FLAT, 4-PIN CONNECTOR’s RED wire is attached, through the ignition switch, to the attery’s positive pole (+12 VDC). he battery’s negative pole is grounded, nd this connector’s BLACK wire must also e attached to a good negative ground, referably the Ground Strap. he DARK GREEN & WHITE wire connects to he Burn Out switch.
WIRING THE TACHOMETER he LIGHT GREEN wire outputs, from your ACCEL ignition, to the Tachometer through your ev-limiter. Some older tachs may need a resistor, wired to POWER, to function correctly. he Rev-limiter itself, when not being programmed, functions as a digital tachometer. WIRING THE TRIGGER he ACCEL 3-STAGE REV-LIMITER accepts any and all kinds of trigger, except distributor-less. s digital, micro-processor controlled, rev-limiter will be as sensitive as your trigger.
CONNECTING SOLENOIDS IN PARALLEL Both the 2-pin, female output connectors are switched to Ground inside he Rev-limiter, and both connectors supply enough power to drive multiple solenoids. Two solenoids in parallel is ommon, but various manufacturer’s solenoids, may have different energy requirements. he ACCEL 3-STAGE REV-LIMITER can drive up to three HURST solenoids (Roll Control solenoid alve – Part# H566 7550) wired, in parallel, to either of these two 2-pin outputs.
LED’s do The Rev-limiter is not getting power. not display Check the 4-pin, flat connector’s Red and Black wires. See Pg-6. LED’s display The Rev-limiter is not getting a Trigger. 000 Check the 4-pin, square connector, and check the color of the wires. See the wiring diagram on Pg-6 and the triggering chart on Pg-9. Status light Your ignition is not firing or it has unplugged from the Rev-limiter. is Dim Check the battery and all three 4-pin connectors and all their wires.
An RPM-Activated switch that turns on an external ACCEL SHIFT LIGHT. Press the SHIFT LIGHT button. Adjust the setting with the ⇓ or ⇑ buttons. The Red & White wire provides +12 VDC. The Black & Pink wire is switched to Ground. Another RPM-Activated switch. This one actuates an external solenoid normally used to add Nitrous Oxide into the Air/Fuel mixture. Press the N2O button. Adjust the setting with the ⇓ or ⇑ buttons. The Pink wire provides +12 VDC, Brown wire is switched to Ground.
ACCEL 3-STAGE REV-LIMITER COMPATIBILITY CHART ACCEL DRAG RACE COIL Part # 140010 ACCEL SUPER COIL Part # 140009 Any of the ACCEL+ ignition systems, in this case an ACCEL 300+. The ACCEL 3 STAGE REVLIMITER inputs its signals directly to your ACCEL+ ignition. Any additional control modules must input to the ignition through your Rev-limiter. TIMING RETARD MODULE (Part # – 49355) an ACCEL TIMING COMPUTER (Part # – 49340). Either one inputs to your ACCEL+ ignition through your ACCEL 3-STAGE REV-LIMITER.