MSD 6523 Ultra 6AL Plus Ignition Control

Red - Compact design - full MSD power;

The new Ultra 6AL Plus series delivers full MSD power in a compact, lighter package! The Ultra 6AL Plus features boost dependent timing control up to 400 kPA (58 PSI / 4 BAR internal sensor), making it the ultimate ignition box for moderately boosted vehicles utilizing a blow-through or draw-through carburetor. Program through the "MSD Ultra 6AL" app or MSDView software via the integrated USB port. Programmable timing curves in 2D Plots or 3D tables (RPM vs Timing vs MAP Pressure) - you can plot the 3D graph and edit a table 20x20 either from Mobile app (phone) or from MSDView (laptop). Mobile app available settings: Step retard value, Launch RPM value, Burnout RPM value, and Max (Race) RPM Value. The Ultra 6AL Plus Series feature a capacitive discharge ignition design. The majority of stock ignition systems are inductive ignitions. In an inductive ignition, the coil must store and step up the voltage to maximum strength in between each firing. At higher rpm, since there is less time to charge the coil to full capacity, the voltage falls short of reaching maximum energy which results in a loss of power or top end miss.;