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Specifications
Engine Type - 2.0L Zetec I-4 iron block, aluminum head
Valvetrain - DOHC, 4 valves per cylinder
Valve Diameters (Int/Exh) - 1.260/1.100
Bore/Stroke (in/mm) - 3.339" x 3.465" (84.8 x 88.0)
Displacement (cu in/cc) - 121.3/1988
Connecting Rod Length - 5.3618"
Main journal Dia. - 2.2831"
Rod Journal Dia. - 1.8465"
Crankshaft Center Line to Deck - 8.378"
Compression Distance Pin to Top of Piston - 1.3012"
Compression Ratio - 9.6:1
Horsepower @ rpm - 125 @ 5500
Torque (lb-ft) @ rpm - 130 @ 4000
Recommended Fuel - 87 octane
Fuel System - Sequential multi-port electronic fuel injection
Oil Capacity - 4.5 quarts
Cat-Back Exhausts
Will improve whole powerband, will increase loudness.
Trubendz - The only company to make a Zetec Cougar kit, available in different sizes and mufflers.
Any exhaust shop should be able to make you a custom exhaust. In some places this is cheaper then others. This a great option if your area has cheap shop rates for this kind of thing.
Also any Duratec kit can be used but will need some modifying where it bolts to our flange.
Race Headers
Will drastically improve powerband in upper powerband, and moderate in lower powerband. Will also drastically increase engine noise.
ZXTuner - 4-2-1 design. Involves removing Catalytic Converter which is illegal in the United States but only matters if you have emissions testing. Ceramic Coated and comes with MIL eliminators.
Shorty Headers
Will improve upper powerband a little.
None available, any Zetec one will work but you will need a custom flange and downpipe to mate to your exhaust. The cougar has a unique pipe routing under the oil pan preventing any focus downpipes from fitting.
Underdrive Pulleys
You can expect slightly better acceleration and quicker engine response with one of these. Some have had major problems with them while others have not. Takes away harmonic balancer and can cause vibrations in the crank. Some have had them for 100,000 miles + and have had no problems.
Esslinger - Crank Pulley
ZXTuner - Crank Pulley
Focus Sport - Crank Pulley
Focus Central - Crank and Water Pulley
Ford Racing - Crank Pulley
AEM Alternator UDP - Only underdrives alternator (not recommended for those with stereo systems.)
AFX - 3 pc. pulley
Throttle Body
Will increase throttle response greatly, very little to no power gain.
Basically have 2 options, one is to send it to Buckshot Motorsports to optimize it
Or, there is the option of a Focus Central 65mm Throttle Body, I have in my possession a Focus Throttle Body that is identical to mine, but I have been unable to find which model Focus it came off of so I have not been able to tell which one works.
Intakes
Will improve power-band above ~3500, will increase engine noise.
CTA Motorsports - a good intake, easy to install but a horrible elbow design coming off the throttle body. Silicone coupler there is under stress and prone to rip. Elbow can also rub against hood. Other than that, flawless. Comes with 3" piping and a filter.
Weapon R - a good intake too, elbow design has no problems, but some have had problems with the filter. Some start deteriorating and can get sucked into the engine. Other than that, flawless.
Pistons
For when you need a stronger engine, or want to change compression.
JE
Focus Central
There are a lot more options to choose from as well. Focus pistons will fit our block
Rods
To strengthen the weak line of the engine.
Crower
Eagle
As with pistons,a a few more choices available. Focus rods fit our crank
Coil Pack and Wires
Will not really add any power but will smooth idle and acceleration.
Vitek Wires
Ford Racing Wires - 9mm wires
Magnecor Wires - 8.5mm wires
Accel Coil Pack
MSD Coil Pack
* Note that any of these aftermarket coil and wires have not been proven to be better then the stock unit. In fact the msd unit has been recorded as inferior to the stock coil from several turbo focus owners*
Spark Plugs
Need these to make engine work. Some work better than others.
Autolite Double Platinum APP5344
Motorcraft 417FE
Motorcraft AZFS22C (colder) - This is the OEM copper core plug for the svt focus
Denso Iridium ITV16
NGK 2467
Champion Double Platinum 7437
Intake Porting
You hear a lot of Focus owners wanting the early 2k intake manifolds... Reason is they were cast as 1 piece then, and are now done with 2 piece. Good news is that both 99-00 (not sure about 01-02) have the early design that flows better. Now to port this manifold you need to get out the dremel with a grinding bit and port the runners to just before where the gasket o-rings are. Just make it more smooth and open. Also if you do anything throttle body wise you should port-match the top opening of the manifold.
Adjustable Cam Gears
These help fine tune cam timing. On a cougar head we can only put an adjustable cam gear on the intake cam unless VCT is deleted (either via vct delete kit or focus head swap)
Esslinger
OBX
Focus Central
Focus Sport
Fidanza
Ford Racing
Unorthodox
Camshafts
Will drastically change power-band. Lose some low end to gain a lot of top end.
Web Cams
Any Focus Intake Cam will work, Exhaust will not work unless VCT is eliminated.
Valve-train
Crower offers Titanium Valves and Retainers to be able to rev higher without valve float.
Focus Valves, springs and retainers all fit our head.
Head
The Ford Racing Head available for the focus can bolt onto our block. This requires custom tuning and a bit of work. It eliminates VCT, so you need a focus exhaust cam. The cam position sensor will also be bypassed as the signal will come from the opposite cam.
I believe this head is now out of production and only available used.
Motor Mounts
Same as the duratec equipped cars, can use Energy Suspension inserts up front. Fill the rears with Polyurethane.
Differences between Non-VCT Zetecs and normal Zetecs
So far I have found this:
Coolant Temperature Sensor is mounted differently.
Cam Position Sensor is on exhaust side on VCT motors, on intake for normal zetecs. Different Part numbers.
Shortblock is same part number. Same block.
Head gasket same part number as SVT Focus, Fel-pro lists universal gasket for all zetecs.
Same Head Bolts
VCT exhaust cam is larger diameter than that of non VCT Zetec cam.
Cannot use Cougar intake cam on Focus due to cam having no key for cam position sensor.
More to come, hopefully not, should be doing FR Head swap soon.
Stroker Kits
Crower makes Stroker Kits to make your zetec any size up to 2.3l, adverse effects may include, but not necessarily lower Rev limit.
Engine Type - 2.0L Zetec I-4 iron block, aluminum head
Valvetrain - DOHC, 4 valves per cylinder
Valve Diameters (Int/Exh) - 1.260/1.100
Bore/Stroke (in/mm) - 3.339" x 3.465" (84.8 x 88.0)
Displacement (cu in/cc) - 121.3/1988
Connecting Rod Length - 5.3618"
Main journal Dia. - 2.2831"
Rod Journal Dia. - 1.8465"
Crankshaft Center Line to Deck - 8.378"
Compression Distance Pin to Top of Piston - 1.3012"
Compression Ratio - 9.6:1
Horsepower @ rpm - 125 @ 5500
Torque (lb-ft) @ rpm - 130 @ 4000
Recommended Fuel - 87 octane
Fuel System - Sequential multi-port electronic fuel injection
Oil Capacity - 4.5 quarts
Cat-Back Exhausts
Will improve whole powerband, will increase loudness.
Trubendz - The only company to make a Zetec Cougar kit, available in different sizes and mufflers.
Any exhaust shop should be able to make you a custom exhaust. In some places this is cheaper then others. This a great option if your area has cheap shop rates for this kind of thing.
Also any Duratec kit can be used but will need some modifying where it bolts to our flange.
Race Headers
Will drastically improve powerband in upper powerband, and moderate in lower powerband. Will also drastically increase engine noise.
ZXTuner - 4-2-1 design. Involves removing Catalytic Converter which is illegal in the United States but only matters if you have emissions testing. Ceramic Coated and comes with MIL eliminators.
Shorty Headers
Will improve upper powerband a little.
None available, any Zetec one will work but you will need a custom flange and downpipe to mate to your exhaust. The cougar has a unique pipe routing under the oil pan preventing any focus downpipes from fitting.
Underdrive Pulleys
You can expect slightly better acceleration and quicker engine response with one of these. Some have had major problems with them while others have not. Takes away harmonic balancer and can cause vibrations in the crank. Some have had them for 100,000 miles + and have had no problems.
Esslinger - Crank Pulley
ZXTuner - Crank Pulley
Focus Sport - Crank Pulley
Focus Central - Crank and Water Pulley
Ford Racing - Crank Pulley
AEM Alternator UDP - Only underdrives alternator (not recommended for those with stereo systems.)
AFX - 3 pc. pulley
Throttle Body
Will increase throttle response greatly, very little to no power gain.
Basically have 2 options, one is to send it to Buckshot Motorsports to optimize it
Or, there is the option of a Focus Central 65mm Throttle Body, I have in my possession a Focus Throttle Body that is identical to mine, but I have been unable to find which model Focus it came off of so I have not been able to tell which one works.
Intakes
Will improve power-band above ~3500, will increase engine noise.
CTA Motorsports - a good intake, easy to install but a horrible elbow design coming off the throttle body. Silicone coupler there is under stress and prone to rip. Elbow can also rub against hood. Other than that, flawless. Comes with 3" piping and a filter.
Weapon R - a good intake too, elbow design has no problems, but some have had problems with the filter. Some start deteriorating and can get sucked into the engine. Other than that, flawless.
Pistons
For when you need a stronger engine, or want to change compression.
JE
Focus Central
There are a lot more options to choose from as well. Focus pistons will fit our block
Rods
To strengthen the weak line of the engine.
Crower
Eagle
As with pistons,a a few more choices available. Focus rods fit our crank
Coil Pack and Wires
Will not really add any power but will smooth idle and acceleration.
Vitek Wires
Ford Racing Wires - 9mm wires
Magnecor Wires - 8.5mm wires
Accel Coil Pack
MSD Coil Pack
* Note that any of these aftermarket coil and wires have not been proven to be better then the stock unit. In fact the msd unit has been recorded as inferior to the stock coil from several turbo focus owners*
Spark Plugs
Need these to make engine work. Some work better than others.
Autolite Double Platinum APP5344
Motorcraft 417FE
Motorcraft AZFS22C (colder) - This is the OEM copper core plug for the svt focus
Denso Iridium ITV16
NGK 2467
Champion Double Platinum 7437
Intake Porting
You hear a lot of Focus owners wanting the early 2k intake manifolds... Reason is they were cast as 1 piece then, and are now done with 2 piece. Good news is that both 99-00 (not sure about 01-02) have the early design that flows better. Now to port this manifold you need to get out the dremel with a grinding bit and port the runners to just before where the gasket o-rings are. Just make it more smooth and open. Also if you do anything throttle body wise you should port-match the top opening of the manifold.
Adjustable Cam Gears
These help fine tune cam timing. On a cougar head we can only put an adjustable cam gear on the intake cam unless VCT is deleted (either via vct delete kit or focus head swap)
Esslinger
OBX
Focus Central
Focus Sport
Fidanza
Ford Racing
Unorthodox
Camshafts
Will drastically change power-band. Lose some low end to gain a lot of top end.
Web Cams
Any Focus Intake Cam will work, Exhaust will not work unless VCT is eliminated.
Valve-train
Crower offers Titanium Valves and Retainers to be able to rev higher without valve float.
Focus Valves, springs and retainers all fit our head.
Head
The Ford Racing Head available for the focus can bolt onto our block. This requires custom tuning and a bit of work. It eliminates VCT, so you need a focus exhaust cam. The cam position sensor will also be bypassed as the signal will come from the opposite cam.
I believe this head is now out of production and only available used.
Motor Mounts
Same as the duratec equipped cars, can use Energy Suspension inserts up front. Fill the rears with Polyurethane.
Differences between Non-VCT Zetecs and normal Zetecs
So far I have found this:
Coolant Temperature Sensor is mounted differently.
Cam Position Sensor is on exhaust side on VCT motors, on intake for normal zetecs. Different Part numbers.
Shortblock is same part number. Same block.
Head gasket same part number as SVT Focus, Fel-pro lists universal gasket for all zetecs.
Same Head Bolts
VCT exhaust cam is larger diameter than that of non VCT Zetec cam.
Cannot use Cougar intake cam on Focus due to cam having no key for cam position sensor.
More to come, hopefully not, should be doing FR Head swap soon.
Stroker Kits
Crower makes Stroker Kits to make your zetec any size up to 2.3l, adverse effects may include, but not necessarily lower Rev limit.