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1,902 Posts
I am just gonna give a general stream of thought comment here on the photo's published:
http://fordstnation.com/focus-st-performance/1432-high-res-focus-st-engine-photos.html
Take a look and then comment here about what YOU think.
I might have a couple of things wrong, I dunno. Here goes:
water jacket surrounds the exhaust tubing to the port... why?
Why are they cooling the exhaust? Heat is a factor of power. This will heat the coolant significantly. Maybe reason for overboost limitation?
This will limit power as enlarging the exhaust path will be very difficult, the extra amount of heat created will heat the coolant MORE.
oil path is set up for external cooler, most likely in radiator. Blocking this off and setting up auxilliary
oil cooler will reduce load on cooling system. add oil cooler to feed line to turbo
Fuel pump looks to be driven off of cam assembly. This means there is an electric take up pump
most likely in the tank. This is going to be a hard part to mod or make a hi-perf version of.
What is the chamber to the right of the throtte valve?
ASS is most likely vented to the interior from the airbox and not from the intake hi pressure side
Valve to piston clearance is TIGHT on the piston, This limits aftermarket cams significantly.
water jacket around cylinders volume look sparse.
Underdrive pulleys look feasible and a good idea.
Thermal coating of air intake path is a very good idea from the look of things.
Solid built pistons with good thick ring lands. Small skirts with anti-friction pads. Good Potential.
Appears to use a rotating shaft-weight countervibration system driven off the crank, might be worth a few HP and decrease RPM drive time but will increase the harshness of the engine.
The waste gate is vacuum controlled not servo controlled and appears preloadable
Need to find a larger oil filter that will work.
Please put in your opinions!
http://fordstnation.com/focus-st-performance/1432-high-res-focus-st-engine-photos.html
Take a look and then comment here about what YOU think.
I might have a couple of things wrong, I dunno. Here goes:
water jacket surrounds the exhaust tubing to the port... why?
Why are they cooling the exhaust? Heat is a factor of power. This will heat the coolant significantly. Maybe reason for overboost limitation?
This will limit power as enlarging the exhaust path will be very difficult, the extra amount of heat created will heat the coolant MORE.
oil path is set up for external cooler, most likely in radiator. Blocking this off and setting up auxilliary
oil cooler will reduce load on cooling system. add oil cooler to feed line to turbo
Fuel pump looks to be driven off of cam assembly. This means there is an electric take up pump
most likely in the tank. This is going to be a hard part to mod or make a hi-perf version of.
What is the chamber to the right of the throtte valve?
ASS is most likely vented to the interior from the airbox and not from the intake hi pressure side
Valve to piston clearance is TIGHT on the piston, This limits aftermarket cams significantly.
water jacket around cylinders volume look sparse.
Underdrive pulleys look feasible and a good idea.
Thermal coating of air intake path is a very good idea from the look of things.
Solid built pistons with good thick ring lands. Small skirts with anti-friction pads. Good Potential.
Appears to use a rotating shaft-weight countervibration system driven off the crank, might be worth a few HP and decrease RPM drive time but will increase the harshness of the engine.
The waste gate is vacuum controlled not servo controlled and appears preloadable
Need to find a larger oil filter that will work.
Please put in your opinions!