Murena 2.2 Engine Development

Finally I have found the time to start a topic about the project I have been working on for quite some time, a better engine for my 2.2S.

The objective; 90hp per liter, which is going to be a bit of a challenge, quite some work has been done and will have to be done to get to this number.

I have first started identifying possible improvements to the engine block and rotating assembly, wich have resulted in the following points that have to be addressed:

- The rods are heavy and out of balance, there is quite some difference in weight between the 4 rods.
- The crankshaft is out of balance.
- Oil return path is not very fluid, a lot of obstacles in the way.
- Oil feed to the oil filter housing has a nasty 90 degree corner it has to go through.
- The flywheel is too heavy and not very well balanced.
- Engine block is not stiff enough in the area of the main bearing caps.

First I have started addressing the oil issues, which a die grinder fixed (visible in the attached photos).
I then proceeded to clean up and balance the rods and crankshaft.

In the next installment I will start working on other things on the block that will have to be addressed.