polo9N.info - polo6R.info Forum

Hi all!

i have a 9n3 polo hatch, which in South Africa comes with a EA-111 BAH/BGU 1.6 8v motor. It uses a roller rocker camshaft (RSH).

Power: 74kw(100hp) @5500rpm
Torque: 140nm(103lb/ft) @3250rpm

the specs are as follows:

-Engine: EA-111 BAH/BGU
-multi-point electronic fuel injection
-ECU: Bosch ME7
-Displacement: 1598cc/97.5 cubic inches
-SOHC 2 valves per cylinder
-Rev Limit = 6500rpm
-Compression ratio: 10:1
-Bore: 76.5mm
-Stroke: 86.9mm
-Throttle body is electronic drive by wire
-Intake port = 28mm
-Intake valve diameter = 32.5mm
-Exhaust port = 25mm
-Exhaust valve diameter = 25.5mm - 26mm


does anyone know much about this motor or have any expereince with it?

Are you sure, that this engine has 8 valves?
I found only the 1.6 engine with 16valves and 105hp.

I know this engine from the Golf Mk 4. There it is called 1.6 SR. The 16 Valves 1.6 litre Engine you mean is a newer one.

ye positive it is 8v - it is in my car

some more info

-Throttle body is electronic drive by wire
-Intake port = 28mm
-Intake valve diameter = 32.5mm
-Exhaust port = 25mm
-Exhaust valve diameter = 25.5mm - 26mm

i am wanting to tune the motor to get 130hp (standard 100hp)

I know this engine from the Golf Mk 4. There it is called 1.6 SR. The 16 Valves 1.6 litre Engine you mean is a newer one.

The SR engine looks different! my car, the engine cover is also the airbox

I think the Golf V ( + Touran / Caddy) has also this engine:
http://www.doppel-wobber.de/wbb2/Inform ... toren.html


The engine is not used for Polos in Europe, there an engine with 16 valves is used ('BTS'), also based on the EA111 block, but with a timing chain and single ignition coils