Basic Info & Problems: Tuning the Zetec

[Decepticon_Zetec]

Welcome to Zetec Tuning...


Here are the specs on the Zetec. aka Zetec-E.
If there are any errors please PM me

Horsepower: 130hp @ 5300 rpm
Torque: 135tq @ 4500 rpm
Displacement: 121ci
Compression Ratio: 9.6/1
Cylinder Bore: 3.339
Crankshaft Stroke: 3.465
Connecting Rod Length: 5.3618/(97 5.4820)
Valve Diameters (Int/Exh): 1.260/1.100 (2 Int, 2 Exh)
Spark Plug gap "OEM": 0.051
Firing Order: 1-3-4-2
Throttle Body Diameter: 55mm
Redline @ 6750rpm
Governed speed @ 105mph
Coolant capacity: 6.1 quarts
Motor Oil capacity: 4.5 quarts
MTX fluid: 2.1 quarts
ATX fluid: 6.9 quarts
==================================


Installation & Parts coming soon!!!

If your looking to buy new parts for your focus.
Please look at our sponsor list.

Please show your support, and try here first.
http://www.focaljet.com/allsite/content/sponsors.html



==================================
Here are some basic problems that can occur with adding
bolt-ons for our cars. These can hinder the performance from
our mods.

Dirty MAFs
Your MAFs is located on your intake:
The two screws are a torx T-20 security bit.
When you remove it be very gentle with it. Do NOT touch the
wires inside with anything, i used some CRC electronic
cleaner you can pick this up at a local checkers..etc.

Vacuum leak:
when your hose becomes old, it gets sticky and
is very squishy. check to see if the hose has
any kinks in it. It comes around from behind the
engine and goes into a fitting for the PCV.

DPFE:
When this goes out, your car could bog down under load
and have a rough idle.

PCV:
When this sticks shut/open it could have some problems
with a lack or hesitation of power. but this may not
show signs of problems just by itself

TPS:
When your TPS seems to be acting up, your idle
could fluctuate up and down. people say to remove it
and start your car if it runs better, problem found.

Where are they located?
Maf = on your intake. MAF
TPS = side of throttle body. TPS
PCV = next to the header just look down and to the right. PCV
Vacuum = behind engine on intake manifold "larger hose". Vacuum
DPFE = on firewall left of brake booster. DPFE

What do good-bad plugs look like?.
Normal "good to go"
Worn Out "replace plugs"
Oil inside of Cylinder "rebuild time!"

If you can think of anything else that can wrong with adding
MORE power to our engine, without use of F/I, please PM me.


Thanks everyone.
Decepticon_Zetec

[Decepticon_Zetec]

Are you worried about your warranty when you have performance parts installed?

Read Here

And Here

[thor]

Originally Posted by Decepticon_Zetec

Welcome to Zetec Tuning...


Here are the specs on the Zetec. aka Zetec-E.
If there are any errors please PM me

Horsepower: 130hp @ 5300 rpm
Torque: 135tq @ 4500 rpm
Displacement: 121ci
Compression Ratio: 9.6/1
Cylinder Bore: 3.339
Crankshaft Stroke: 3.465
Connecting Rod Length: 5.3618/(97 5.4820)
Valve Diameters (Int/Exh): 1.260/1.100 (2 Int, 2 Exh)
Spark Plug gap "OEM": 0.051
Firing Order: 1-3-4-2
Throttle Body Diameter: 55mm
Redline @ 6750rpm
Governed speed @ 105mph
Coolant capacity: 6.1 quarts
Motor Oil capacity: 4.5 quarts
MTX fluid: 2.1 quarts
ATX fluid: 6.9 quarts
==================================


Installation & Parts coming soon!!!

If your looking to buy new parts for your focus.
Please look at our sponsor list.

Please show your support, and try here first.
http://www.focaljet.com/allsite/content/sponsors.html



==================================
Here are some basic problems that can occur with adding
bolt-ons for our cars. These can hinder the performance from
our mods.

Dirty MAFs
Your MAFs is located on your intake:
The two screws are a torx T-20 security bit.
When you remove it be very gentle with it. Do NOT touch the
wires inside with anything, i used some CRC electronic
cleaner you can pick this up at a local checkers..etc.

Vacuum leak:
when your hose becomes old, it gets sticky and
is very squishy. check to see if the hose has
any kinks in it. It comes around from behind the
engine and goes into a fitting for the PCV.

DPFE:
When this goes out, your car could bog down under load
and have a rough idle.

PCV:
When this sticks shut/open it could have some problems
with a lack or hesitation of power. but this may not
show signs of problems just by itself

TPS:
When your TPS seems to be acting up, your idle
could fluctuate up and down. people say to remove it
and start your car if it runs better, problem found.

Where are they located?
Maf = on your intake. MAF
TPS = side of throttle body. TPS
PCV = next to the header just look down and to the right. PCV
Vacuum = behind engine on intake manifold "larger hose". Vacuum
DPFE = on firewall left of brake booster. DPFE

What do good-bad plugs look like?.
Normal "good to go"
Worn Out "replace plugs"
Oil inside of Cylinder "rebuild time!"

If you can think of anything else that can wrong with adding
MORE power to our engine, without use of F/I, please PM me.


Thanks everyone.
Decepticon_Zetec

105 mph limited??? i have a 2003 zts i bought it used and it will do 120 before it shuts down...105 huh?

[slo_poke_blackzx3]

I bet the previous owner did something to the ecu, either chip or re-flash. Mine actually shut down at 108 pre SCT chip.

[hansbiemond]

If i can choose between a Zetec 2.0 litre engine and a Duratec 2.3 litre engine, witch should i take to reach the most power?
I'm a student from Holland and we're building kitcars at school, our goal is to get a lot of power in them.

[sleeperlove]

Most definitely the 2.3 duratec. It has way more potential than the 2.0 zetec

[shbfd]

Definitely 2.3 Duratec as the saying goes "No replacement for displacement".

[gobstopper]

Originally Posted by shbfd

Definitely 2.3 Duratec as the saying goes "No replacement for displacement".

That's less important in this case than a great cylinder head and some decent rod length, but yeah.

[myfafp3]

Hmm I keep hearing about the ford ranger cranks. Are people making stroker motors with the ranger crank? Or am I imagining things? Sure sounds like a good idea though

[Bparks717]

governed speed is 112 i know it make me angry

[dougyfresh]

hey i got a question i got a jackson racing throttle body and i just put it in and the car is not supercharged. when im at a dead stop and the light turns green and i shift into first and hit the gas i noticed that i have to rev up a little to get it to move or else it will stall out. is this normal?? i checked the screw and its fine and i also do i have to adjust the throttle cables/cruise cables or no.

[Omega Anomaly]

dougyfresh: sounds like you may not have a good seal from the intake tube to the TB or from the TB to the intake manifold. You should't have to adjust the throttle cables.

[Chracy]

So do you need a tune to change the governed speed?

[hEaT]

Originally Posted by Chracy

So do you need a tune to change the governed speed?

Yes. The SVT is set higher than the base Zetec from the factory as well.

[ghostrider86]

Originally Posted by Bparks717

governed speed is 112 i know it make me angry

Tested my 03 ZX3 Zetec yesterday......... 108 mph......BLAH!

[cwatson411]

Originally Posted by hansbiemond

If i can choose between a Zetec 2.0 litre engine and a Duratec 2.3 litre engine, witch should i take to reach the most power?
I'm a student from Holland and we're building kitcars at school, our goal is to get a lot of power in them.

yes, the duratec will make more n/a power but the zetec has WAY more aftermarket parts and acc.

[FASTandFOCUSed77]

well shiii i got a 07 2.0 zx3 ses and i did 110 and i only stopped kuz i ran out of room not kuz the car didnt let me so im all confused? haha

[Lancer211]

Originally Posted by FASTandFOCUSed77

well shiii i got a 07 2.0 zx3 ses and i did 110 and i only stopped kuz i ran out of room not kuz the car didnt let me so im all confused? haha

If you drive an 07, you're in the wrong forum. Your car has the Duratec engine, not the Zetec.

[SOHCTUNER]

Originally Posted by FASTandFOCUSed77

well shiii i got a 07 2.0 zx3 ses and i did 110 and i only stopped kuz i ran out of room not kuz the car didnt let me so im all confused? haha

you wer doing 110 Kph as well right! no street racing take it to a track or your girlfriends nieghborhoods backroads. my girlfriends neighborhood is an auto-x trak literally!

[zx3mike09]

Originally Posted by dougyfresh

hey i got a question i got a jackson racing throttle body and i just put it in and the car is not supercharged. when im at a dead stop and the light turns green and i shift into first and hit the gas i noticed that i have to rev up a little to get it to move or else it will stall out. is this normal?? i checked the screw and its fine and i also do i have to adjust the throttle cables/cruise cables or no.

if u install a big throttle body on a stock engine it can bog it down. it may be running lean, getting too much air and not enough fuel. i recommend an sct tuner to play around with ur air to fuel ratio. im not sure if thats 100% correct but i DO know that a bigger throttle body on a stock engine can cause it to do that at idle

[hEaT]

A larger TB won't make the car run lean at all. FocusSport tested this and the stock tune had no issues with the bigger TB.

[BrownZX3Kona]

To add to the comments about the DPFE in the original post, when it goes bad, you will get an EGR code and after looking through code tips it may seem like you need to replace the EGR valve, MOST of the time it's just the DPFE. Just my 2 cents (might save someone from a frustrating misdiagnosis)!

[MotorHead]

Will any or all of the listed "basic problems" trip a code? I have a 2000 Ford Focus ZX3 with 161000 miles on her and until about 4 months ago, I was getting a consistent 25-27 mpg with mixed driving but mostly city. I had good power too...Now, I get about 20 mpg and I have a hesitation that I can feel real well when traveling at a steady 45-50 mph. I do NOT have a check engine light on. What can possibly be the problem? All of these seem like possibilities, but wouldn't I get a Check Engine Light?

[BrownZX3Kona]

No, not everything is necessarily going to trip the MIL, but you should start with the basics- look for maybe a very small vacuum leak, clogged PCV valve (it is harder to get to than most cars, so it might not have ever been changed or even looked at), when was the last time you changed plugs and wires? EXTREMELY dirty air filter?? Dirty MAF??? It could be a lot of things, or a lot of things working together that can do it and not give you a light