Saturday, February 20, 2010

Specs on Subaru motor



The Subaru EA-82 engine was produced from 1985 to 1994. It came with a carburetor, single point fuel injection, or multi port fuel injection. Most of the technical advancements introduced to the EA82 were utilized in the Subaru EJ engine, specifically, the SOHC valvetrain, and multi-point fuel injection.

* Displacement: 1781 cm³
* Bore: 92 mm
* Stroke: 67 mm
* Compression Ratio: 8.7:1 or 9.0:1 SPFI According to Subaru Factory Service manuals: 9.0:1 "carb" 9.5:1 SPFI
* Valvetrain: SOHC
* Horsepower:
Carb - 84 bhp (63 kW; 85 PS) @ 5200 RPM,
SPFI - 90 bhp (67 kW; 91 PS) @ 5600 RPM
MPFI - 97 bhp (72 kW; 98 PS) @ 5200 RPM
* Torque:
Carb - 101 lb·ft (137 N·m) @ 3200 RPM
SPFI - 101 lb·ft (137 N·m) @ 3200 RPM
MPFI - 103 lb·ft (140 N·m) @ 3200 RPM

As you can see +50bhp will be an easy task on this motor. The parts are dirty cheap although not a very easy task to find but they come up.There are even newer versions of this motor like the EJ16, EJ18 , EJ22 and so on that can be found for about 400euros.. Less than a good pair of Aircooled heads.

No more Aircooled Power..



The subaru motor is coming to life and it looks like this is the motor to keep. This motor looks so robust and strong that it can take the beating a lot better than the aircooled 1740cc that I was building. Dont get me wrong, I still love the vw Aircooled motors. Its just that this motor is best suited to my intentions.

Big Change on the Powertrain!



After almost finishing the motor on my bug disaster struck. The heads revealed cracks under the carbon deposits on the exhaust valve. Obviously the machine shop just put new guides new valves and considered this a valve job... I always say it is better to DO IT YOURSELF! On my attempt to tear down the heads I damaged one of them and started looking for some performance 40mmX35mm heads. This is the point where I changed sides! The dark side won and I found a new engine project for my beetle. The engine is a 1985 Subaru 1.8L boxer engine that came with the adapter plate for the vw trans axle. No time was lost, I swapped motors and started rebuilding the Subaru engine.
The motor was torn down cleaned measured and inspected for damage.