Detergent oil

[Railcarmover]

No argument over the simplicity and robust characteristics of the car in stock form,and I agree spending thousands of dollars chasing speed from an L head 4 cylinder 200 cubic inch engine is at best a lesson on disappointment. But I do see modern oil as a way of improving the chances of what you have lasting longer,oil and air filtration are proven to extend engine life.


I see the full flow as the answer as well Y Block...just wonder if flow and pressure should be improved before adding the restriction of a filter.

[Y-Blockhead]

Originally Posted by Railcarmover

I see the full flow as the answer as well Y Block...just wonder if flow and pressure should be improved before adding the restriction of a filter.

I believe the stock Model A oil pump, being a positive displacement pump, is more than capable of putting out more than enough pressure to overcome the restriction of an oil filter. The reason a stock Model A without filter has low oil pressure is the pump is pumping into a open space, the valve chamber, without any back pressure.

We sure have traveled far from the original question...