ZX2Fast
04-17-2008, 04:28 PM
Why You are Here.
Chances are you just bought are you are thinking of buying a ZX2. We also have other non-ZX2 members and they are welcome as well. Even non-ZX2 owners can benifiet from reading this thread because it contains information that isn't only related to the ZX2. Also, we have several members that don't even mod thier ZX2's. That is okay too, we have a lot of information to share that is useful to the casual driver. The ZX2 was introduced in 1997 for the 1998 model year. It had a base price of about $10,995. Cheaper then many competitors and it got great reviews from magazines. There will be some links to articles later in this thread. It was the only Escort you could get with the 2.0 DOHC Zetec engine. In fact, ZX2 stands for Zetec; X-generation; 2 doors. The Zetec has been around for some time now and was used in the Escort and Focus rally cars. Don't let your Honda buddies try to tell you it is a rip-off of Vtec. They are nothing alike and Zetec is a family of engines that has history. Remember, Vtec is a system, Zetec is an engine family. We also got VCT on our engines which is Varible Cam Timing. Again, not like Vtec. VCT was used in place of EGR (Exhaust Gas Recirculation) for emmission purposes. In an EGR system a vaccum accuated valve will pull some exhaust gas back into the intake side of the engine to be reburned. This cools the cylinder and does two things, helps create more low-end power and reduces the amount of hydrocarbons emmited from the car. VCT operates by retarding the exhaust cam. This means the exhaust valves will be open somewhat when the cylinder is on the intake stroke. Not only will this pull air in from the intake but it will also pull in some of the exhaust gas. This has the same effect as EGR without the extra EGR plumbing. If you didn't know we also had some special ZX2's made. In 1999 they made 110 (106 registerd) ZX2 S/R versions. They had an upgraded PCM, Borla muffler, Centerforce clutch, ES bushings, Eibach springs, 4-wheel disc brakes, Roush intakes, 150mph speedo clusters, daisy rims, and B&M shifters. All of them were yellow and only sold in California. In 2000 they made 2000 S/R's and sold them all over the US. They made 1000 yellow, 500 red, and 500 black. It was sold as an option package for the value price of about $1500. In 2003 they redesigned the front of the car and afterwards the ZX2 was discontinued in favor of the Focus. No one said Ford was smart.
Basic Maintainence.
Transmissions:
Automatic
If you have an ATX (automatic transaxle) you really should install an auxillary transmission cooler. The ATX can be reliable for daily driving but it overheats easily. The factory cooler just doesn't cut it. You will also benifiet from switching to a synthetic transmission fluid and have transmission flushes done on a regular schedule. For reference, the ATX typically loses 27% of its' power between the engine and wheels. For instance, if you make 100 hp at the crank, you'll see 73 hp (73 whp) at the wheels.
Manual
If you have the MTX (manual transaxle) then you'll have more fun with this car. You'll see slightly better MPG as well. The weak point in this transmission is the differential. It will shatter if you do too many hard launches. It'll hold up okay if you avoid wheel hop but it'll eventually shatter. Some people are using the PG (Phantom Grip) to prevent the gears from shattering when it wheel hops. You should be able to find more info on this site about the PG. This transmission also uses ATX fluid and will benifiet from a good synthetic. You should also change this fluid every few years just to keep it fresh. The MTX typically loses 17% of its' power between the engine and wheels. This is why many people who want to mod thier ZX2 with an ATX will swap to a MTX. More of the power will make it to the ground and more fun will be had. More ricers will be beaten too.
Engines:
Zetec
The Zetec is a very well designed powerplant. It is very durable as many of us have proven over and over again. Remember, this engine has been raced for years. It really loves synthetic oil as well. Not only does it offer better protection, but you get longer change intervels as well. I know synthetic cost more, but since you can wait longer between changes, it balances out. It is also better for the engine. Many people think if you switch from a conventional oil to a synthetic, it'll cause oil leaks. This isn't true. Synthetic oil doesn't cause leaks, it finds them. The problem is that synthetic oil is so good at cleaning gunk that it'll remove all the gunk conventional oil leaves behind. This is only a problem if you have a bad seal somewhere. The convential oil will build a gunk up and keep from seeping out. The synthetic will clean this gunk up and then seep out. I switched to a synthetic oil at 60,000 miles and it was fine. I switched my wifes car after 100,000 miles and it was fine too. If the engine was cared for properly you won't have an issue. You'll also want to use a good oil filter. The Motorcraft filter (part# FL-2005) is good because it has an anti-flowback valve. This keeps oil from draining out of the head and back into the pan. Otherwise the head will be dry on start-up and this will wear the cams faster. If you have a problem with this car check the 'Problems' section of the site for more help. We have a 'Common Problems' thread that covers most issues so read that before you post. Your question might be answered before you ask.
Other Engines
The ZX2 only came with the Zetec. But the other Escort (97+) 4-door used the 2.0 SPI engine. Some of use know about this engine as well and will be able to help you with it. Just ask if you need help with this engine.
Modifications:
Cams.
Since the Focus uses the Zetec engine we can use any of thier intake cams (with exception of the SVT). We can't use thier exhaust cam because they do not have the VCT system. A funny thing about this is that our intake cam is nearly identical to thier stage 1 performance cam. In fact, some of them use the ZX2 intake cam since they can get them cheaper used. Our exhaust cam has a spool on it that fills in a larger cam journal (hole the cam rides in) and the ZX3 cams won't fit our spool or the gap. The spool is there to support the cam inside the VCT solenoid. You can delete the VCT but must keep the spool to support the cam. VCT delete kits can be bought and they come with most of what you need. You will have to buy a new cam gear (I think someone has used an intake gear turned around) and maybe the new bolt. The old bolt won't work because it is too long. If you use high lift and high rev cams you'll probably want to install stiffer valve springs so they will close faster and follow the cam more closely. If you ever modify the cams you need to determine if you have solid or 2-piece buckets. The solid buckets are what you want to use. The 2-piece have the shims in the top and the hotter cams will flip the shim and cause all sorts of issues and damage.
Head and Block.
We can use block parts from the Focus Zetec as well. It is easier to find them this way. Several manufactuers make these parts. Crower even makes a stroker kit. Typically the stock rods aren't trusted over 230 whp. The head can be PnP'ed (port and polished) for more flow. Some people even have the head milled (shaved down) to gain a higher compression ratio. This can also be achieved by using a thinner head gasket or pistons/rods designed for a higher ratio.
Ignition System.
The stock coil is actually well designed and has a lot of output. Some have shown a small loss with aftermarket coils. The most popular coil is the MSD Blaster. You should avoid the Accel and Screamin Deamon Brands. They like to fail as much as they work.
Chances are you just bought are you are thinking of buying a ZX2. We also have other non-ZX2 members and they are welcome as well. Even non-ZX2 owners can benifiet from reading this thread because it contains information that isn't only related to the ZX2. Also, we have several members that don't even mod thier ZX2's. That is okay too, we have a lot of information to share that is useful to the casual driver. The ZX2 was introduced in 1997 for the 1998 model year. It had a base price of about $10,995. Cheaper then many competitors and it got great reviews from magazines. There will be some links to articles later in this thread. It was the only Escort you could get with the 2.0 DOHC Zetec engine. In fact, ZX2 stands for Zetec; X-generation; 2 doors. The Zetec has been around for some time now and was used in the Escort and Focus rally cars. Don't let your Honda buddies try to tell you it is a rip-off of Vtec. They are nothing alike and Zetec is a family of engines that has history. Remember, Vtec is a system, Zetec is an engine family. We also got VCT on our engines which is Varible Cam Timing. Again, not like Vtec. VCT was used in place of EGR (Exhaust Gas Recirculation) for emmission purposes. In an EGR system a vaccum accuated valve will pull some exhaust gas back into the intake side of the engine to be reburned. This cools the cylinder and does two things, helps create more low-end power and reduces the amount of hydrocarbons emmited from the car. VCT operates by retarding the exhaust cam. This means the exhaust valves will be open somewhat when the cylinder is on the intake stroke. Not only will this pull air in from the intake but it will also pull in some of the exhaust gas. This has the same effect as EGR without the extra EGR plumbing. If you didn't know we also had some special ZX2's made. In 1999 they made 110 (106 registerd) ZX2 S/R versions. They had an upgraded PCM, Borla muffler, Centerforce clutch, ES bushings, Eibach springs, 4-wheel disc brakes, Roush intakes, 150mph speedo clusters, daisy rims, and B&M shifters. All of them were yellow and only sold in California. In 2000 they made 2000 S/R's and sold them all over the US. They made 1000 yellow, 500 red, and 500 black. It was sold as an option package for the value price of about $1500. In 2003 they redesigned the front of the car and afterwards the ZX2 was discontinued in favor of the Focus. No one said Ford was smart.
Basic Maintainence.
Transmissions:
Automatic
If you have an ATX (automatic transaxle) you really should install an auxillary transmission cooler. The ATX can be reliable for daily driving but it overheats easily. The factory cooler just doesn't cut it. You will also benifiet from switching to a synthetic transmission fluid and have transmission flushes done on a regular schedule. For reference, the ATX typically loses 27% of its' power between the engine and wheels. For instance, if you make 100 hp at the crank, you'll see 73 hp (73 whp) at the wheels.
Manual
If you have the MTX (manual transaxle) then you'll have more fun with this car. You'll see slightly better MPG as well. The weak point in this transmission is the differential. It will shatter if you do too many hard launches. It'll hold up okay if you avoid wheel hop but it'll eventually shatter. Some people are using the PG (Phantom Grip) to prevent the gears from shattering when it wheel hops. You should be able to find more info on this site about the PG. This transmission also uses ATX fluid and will benifiet from a good synthetic. You should also change this fluid every few years just to keep it fresh. The MTX typically loses 17% of its' power between the engine and wheels. This is why many people who want to mod thier ZX2 with an ATX will swap to a MTX. More of the power will make it to the ground and more fun will be had. More ricers will be beaten too.
Engines:
Zetec
The Zetec is a very well designed powerplant. It is very durable as many of us have proven over and over again. Remember, this engine has been raced for years. It really loves synthetic oil as well. Not only does it offer better protection, but you get longer change intervels as well. I know synthetic cost more, but since you can wait longer between changes, it balances out. It is also better for the engine. Many people think if you switch from a conventional oil to a synthetic, it'll cause oil leaks. This isn't true. Synthetic oil doesn't cause leaks, it finds them. The problem is that synthetic oil is so good at cleaning gunk that it'll remove all the gunk conventional oil leaves behind. This is only a problem if you have a bad seal somewhere. The convential oil will build a gunk up and keep from seeping out. The synthetic will clean this gunk up and then seep out. I switched to a synthetic oil at 60,000 miles and it was fine. I switched my wifes car after 100,000 miles and it was fine too. If the engine was cared for properly you won't have an issue. You'll also want to use a good oil filter. The Motorcraft filter (part# FL-2005) is good because it has an anti-flowback valve. This keeps oil from draining out of the head and back into the pan. Otherwise the head will be dry on start-up and this will wear the cams faster. If you have a problem with this car check the 'Problems' section of the site for more help. We have a 'Common Problems' thread that covers most issues so read that before you post. Your question might be answered before you ask.
Other Engines
The ZX2 only came with the Zetec. But the other Escort (97+) 4-door used the 2.0 SPI engine. Some of use know about this engine as well and will be able to help you with it. Just ask if you need help with this engine.
Modifications:
Cams.
Since the Focus uses the Zetec engine we can use any of thier intake cams (with exception of the SVT). We can't use thier exhaust cam because they do not have the VCT system. A funny thing about this is that our intake cam is nearly identical to thier stage 1 performance cam. In fact, some of them use the ZX2 intake cam since they can get them cheaper used. Our exhaust cam has a spool on it that fills in a larger cam journal (hole the cam rides in) and the ZX3 cams won't fit our spool or the gap. The spool is there to support the cam inside the VCT solenoid. You can delete the VCT but must keep the spool to support the cam. VCT delete kits can be bought and they come with most of what you need. You will have to buy a new cam gear (I think someone has used an intake gear turned around) and maybe the new bolt. The old bolt won't work because it is too long. If you use high lift and high rev cams you'll probably want to install stiffer valve springs so they will close faster and follow the cam more closely. If you ever modify the cams you need to determine if you have solid or 2-piece buckets. The solid buckets are what you want to use. The 2-piece have the shims in the top and the hotter cams will flip the shim and cause all sorts of issues and damage.
Head and Block.
We can use block parts from the Focus Zetec as well. It is easier to find them this way. Several manufactuers make these parts. Crower even makes a stroker kit. Typically the stock rods aren't trusted over 230 whp. The head can be PnP'ed (port and polished) for more flow. Some people even have the head milled (shaved down) to gain a higher compression ratio. This can also be achieved by using a thinner head gasket or pistons/rods designed for a higher ratio.
Ignition System.
The stock coil is actually well designed and has a lot of output. Some have shown a small loss with aftermarket coils. The most popular coil is the MSD Blaster. You should avoid the Accel and Screamin Deamon Brands. They like to fail as much as they work.