Mallory Ignition ACCEL timing computer 49340 - Manual (Page 9)

A CTUATING N 2 O
nstall all your N 2 O hardware according to the manufacturer’s instructions. If you are
sing an A CCEL 3-S TAGE R EV - LIMITER to trigger N 2 O, follow the Rev-limiter’s instructions.
using a third party’s actuator, follow that manufacturer’s instructions.
our new A CCEL T IMING C OMPUTER
as two RPM-Activated switches connected to two 2-pin connectors.
Use one of them to actuate N 2 O.
or consistency use the connector
ith the B ROWN and P INK wires.)
ssemble it by splicing the N 2 O
olenoid’s Red (+) wire
o the Pink wire, and its Black wire to the Brown wire.
he N 2 O solenoid is actuated through one of five possible connections: one of the two
-pin connectors coming from the Timing Computer, OR one of two 2-pin connectors
oming from an A CCEL 3-S TAGE R EV - LIMITER , OR a third party actuator.
Both 2-pin, female output connectors are switched to Ground inside
he Timing Computer, and both connectors supply enough power to
rive multiple solenoids. Two solenoids, wired
n parallel, is common but different solenoids
may have different energy requirements.
he A CCEL T IMING C OMPUTER can drive up to three H URST solenoids (Roll Control solenoid
alve – Part# H566 7550) wired, in parallel, to either of these two 2-pin outputs.
N 2 O makes more oxygen available for combustion and the air/fuel mixture burns very fast.
s a result, the mixture should be richened and the ignition timing Retarded.
P ROGRAMMING N ITROUS A CTUATION
he connector with the Red & White and Black & Pink wires is programmed by the RPM
nd N 2 O R ETARD buttons. These buttons and this connector do not effect N 2 O retard.
1 . Decide at what RPM you want N 2 O to be activated.
2 . Press RPM and N 2 O R ETARD to display its current value.
3 . Adjust the value with the ⇑ and ⇓ buttons.
4 . Press SAVE to store the new value.
P ROGRAMMING N ITROUS R ETARD
(Through the Flat, 4-Pin Connector – See Pg 10)
o matter how N 2 O is triggered, the Timing Computer reads when it has been actuated
hrough its flat, 4-pin connector. The buttons and connectors do not affect N 2 O actuation.
When the N 2 O solenoid is actuated the entire value set for N 2 O Retard is immediately
ubtracted from the timing curve.
1 . Decide exactly how much Retard you want.
2 . Press the N 2 O R ETARD button to display its current value.
3 . Adjust with the ⇑ and ⇓ buttons.
4 . Press SAVE to store your adjustments.
Brown and
Pink wires