EURO BMW 745i  1980 - 1986
The BMW 745i can be described as an emotional experience, an engineering marvel wrapped in true elegance, yet capable of converting its understated power into measureable g-forces while thrusting any car enthusiast into a complete state of satisfaction and desire.
Summary:

1986 BMW 745i Executive
Engine  = M106 3.5l Inline 6cyl
Mileage = 220,000
Head    = Rebuilt at 190,000
          (Port & Polish)
Turbo   = Stock KKK27
Exhaust = Custom 3"
Trans.  = Auto, ZF-4HP22EH
Diff.   = 2.93 LSD
ECU     =
Team745i chip to remove
          the 6psi boost limit.
Tires   =
Bridgestone Potenza RE750
          245/45 WR 16"
Color   = Diamond Schwartz
Stock M106 spec: (Similar to M30 Block)

Engine Type      = M106 3.5l Inline 6cyl
Displacement     = 3430 cc
Stroke           = 86mm / 3.386in
Bore Dia.        = 92mm / 3.622in
KW/HP @ 4200RPM  = 185KW / 252HP
Max Torque       = 380Nm / 280lb/ft
Max RPM          = 6200
Comp. Ratio      = 8.0:1
Cam Shaft        = 264/112
Piston Clearence = 0.04mm / 0.0016in
Valve Diameter   = intake 46mm
                 = exhaust 38mm
Modified M106 Motor Data :

Modification to the 745 Motronic computer program allows unlimited increase in power and torque.
The practical increase is dependent on several other setups in the car and engine.
Typical increase is 100-150 hp together with some modification of wastegate or to wastegate's control system.
Power levels of 350 - 500+ HP and torque over 640 Nm are possible.

There are many ways to increase boost. You can either have a fixed boost level or a adjustable boost control.
One of the best boost control systems for 745's was the Tuoma Perfection adjustable wastegate,
but that is not available at the moment and may not be manufactured at all anymore.

The standard 745i 3.4 L engine gives 252 HP at 0.3/0.5 bar boost. Engine cutoff is set to 0,7 bar,
which many of the 745 owners have unfortunately experienced.

This modification to the computer program removes the cutoff limit and sets all necessary parameters for unlimited power.
The program is dynamic, so performance is optimal at any and no boost conditions. Torque is increased also considerably.

As a rule of thumb this program increases power by approx. 50 HP for each 0.2 bar step:
0.7 bar = 300 HP, 0.9 bar = 350 HP, 1.1 bar = 400 HP, 1.3 bar = 450 HP, etc...

The standard 745 turbo is good at least upto 1.5 bar.
1986 BMW 745i Executive
1984 BMW 745i Executive
Summary:

1984 BMW 745i Executive
Engine  = M106 3.5l Inline 6cyl
Mileage = 190,000
Head    = Rebuilt at 190,000
          (Port & Polish)
Turbo   = Stock KKK27
Exhaust = Stock
Trans.  = Auto, ZF-4HP22EH
Diff.   = 2.93 LSD
ECU     = Stock.
Tires   =
Bridgestone Potenza RE750
          245/45 WR 16"
Color   = Green
Links to full photo galleries:
 
1986 and 1984
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