Mazda 13b Leading And Trailing Wiring Diagram

This wire shows up twice in the wiring diagram since there are two coils.

Mazda 13b leading and trailing wiring diagram. Ignition split timing is the. For example one box would trigger both the front rotor leading and trailing coils and the other box fire the rear rotor leading and trailing coils. 1986 2002 mazda rotary 13b 20b aem performance electronics aem performance electronics 2205 126th street unit a. The easiest way to deal with this is to set the timing to.

Leading 24 btc trailing 14 btc at 5 000 rpm and use this as a starting point vacuum disconnected. One for each leading plug and one for the trailing ignition. Trailing plug mounted above the leading plug fires 10 15 degrees after the leading plug and completes the combustion providing a more uniform flame front across the rotor face. And lastly they are located within your engine in a strange spot much unlike the 4 6 or 8 cylinder engines you might be used to.

Trailing ignition the mazda rotary engines use a trailing ignition system. Then get your bypass wire black with yellow stripe and hook it up to your leading coil ve terminal this gives full battery voltage to the coil when cranking to make it easier to start. The b y black with yellow stripe wire is the 12v primary current supply from main relay. The factory wiring harness is designed to drive the oil metering pump as a unipolar stepper motor 6.

Hope that helps sb. If you wish to use this distributor for racing purposes the vacuum advance should not be used and the timing should be set to the proper total advance setting timing chart pdf. 69 73 10a 12a. They fire in sequence leading and then trailing.

Microtech to dis 4 wiring diagram. Consider the trailing ignition coil with igniter on the schematics. There are two leading and two trailing spark plugs one on top of the other situated in a square pattern when looking at them from the side. These trailing coils fire sequentially.

The leading plug mounted lower in the rotor housing housing ignites up to 95 of the air fuel mixture providing most of the power. You can hook both the coil ve up to eachother so it bypasses both ballasts when cranking but it should work with only the leading bypassing as per my wiring diagrams for rx 2. I have a mazda rotary 13b turbo running a microtech ltx12s and i have 2 dis4ho boxes. You can use stock coils if you prefer.

Since we re leaving the trailing ignition unchanged a stock coil is perfectly acceptable there. I suggest two nice new shiny msd blaster 2 coils for the leading plugs.