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SVT Performance (2002-2004) The place to chat about any 2.0L SVT DOHC Zetec engine performance, tuning and exhaust related upgrades.

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Old 12-18-2012, 04:04 PM   #31
AJ_ST170
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howzit guys.... quick question to any experts here

Is the focus ST170 - ZX3 - SVT all the same?

Forgive me for my ignorance but I am desperately looking to mod my ST170 and I am looking for Cam, Value and any internals specs that I can modify
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Old 12-18-2012, 11:36 PM   #32
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I would do a aftermarket clutch with an aluminum flywheel, I saw a huge difference from going from stock to a clutch masters. Then do exhaust, intake, tune, 67mm throttle gives you more low end torque.
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Old 12-19-2012, 01:25 AM   #33
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Quote:
Originally Posted by AJ_ST170 View Post
howzit guys.... quick question to any experts here

Is the focus ST170 - ZX3 - SVT all the same?

Forgive me for my ignorance but I am desperately looking to mod my ST170 and I am looking for Cam, Value and any internals specs that I can modify
From what I have gathered from trading parts back and forth with a few guys in England I believe the ST170 is UK spec SVT. I COULD BE WRONG!!! but this is what I have been led to believe. Check out the UK ebay for ST170 and you will see Recaro leather interiors, digital climate control, headlamp washers, adjustable fog lamps, front windshield defrosters, and all sorts of neat stuff that we cannot get here in the U.S.

The ZX3 is simply an upgraded 3 door Focus, there is also a ZX5 which is a five door.
Hope this helps a bit.
Puke

Last edited by Puke; 12-19-2012 at 01:26 AM. Reason: add info
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Old 12-19-2012, 01:42 AM   #34
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Quote:
Originally Posted by Puke View Post
From what I have gathered from trading parts back and forth with a few guys in England I believe the ST170 is UK spec SVT. I COULD BE WRONG!!! but this is what I have been led to believe. Check out the UK ebay for ST170 and you will see Recaro leather interiors, digital climate control, headlamp washers, adjustable fog lamps, front windshield defrosters, and all sorts of neat stuff that we cannot get here in the U.S.

The ZX3 is simply an upgraded 3 door Focus, there is also a ZX5 which is a five door.
Hope this helps a bit.
Puke
I think you are correct about the ST170. I remember reading on the Mustang forum that the "ST" stood for Sports Technologies and the 170 was the HP. The same HP found in the SVT here.

The ZX3 doesn't necessarily mean an upgraded 3 door Focus. It's just the designation for the 3 door hatch. Within the ZX3 and ZX5 hatch models from '05 on there were "S", "SE", and "SES" trims. SES as you know was the top trim until the Titanium models came along in '12.
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Old 12-19-2012, 01:51 AM   #35
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Originally Posted by old1030 View Post
I think you are correct about the ST170. I remember reading on the Mustang forum that the "ST" stood for Sports Technologies and the 170 was the HP. The same HP found in the SVT here.

The ZX3 doesn't necessarily mean an upgraded 3 door Focus. It's just the designation for the 3 door hatch. Within the ZX3 and ZX5 hatch models from '05 on there were "S", "SE", and "SES" trims. SES as you know was the top trim until the Titanium models came along in '12.
Roger that, I knew I couldn't be correct on all of that with my little bitty brain at this hour:) Alas, I have learned something but will probably not remember it by morning.
Thanks old1030.
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Old 12-26-2012, 07:00 PM   #36
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lol.. I dont understand people like this guy.

I bought the SVT, I came on here and READ a bunch of shit.. not ASKED a bunch.. READ a bunch.

I then asked questions to CONFIRM what I thought I knew.
I would suggest this course of action to you OP.
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Old 12-26-2012, 07:39 PM   #37
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It seems like he isn't even here anymore, there so many max hp thread and such or what to do on these svt forums it's just silly. There even a sticky where to start. Drop in filter is the cheapest mod then a tune for driveability, after that it h/c/i like any na car but then you start to be 600 800 1000 usd for not that great of gains and that why people go fi. For is to produce power we can't just slap it on you have to choose your rpm power band raise revs then tune it to sorry you new power band
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Old 12-27-2012, 02:31 PM   #38
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That is the question

Thanks turbosvtfocus04 and Puke

Okay so its confirmed that the ST170 (uk) is the SVT (usa) but i would still like to know if the ZX3 is the same car, interms of engine and transmission...

I have a 63mm exhausted done and the car sound and responds very nicely.

I have also turned the original air feed pipe upside down and it fits behind the grill. Notice better response at top end.

*
I cannot launch the car even with the traction control off!!!! Need Kill switch Diagram

If i rev past 7000rpm and change it holds the clutch!!!!! Lost a few races because of this.

Help Please?
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Old 12-27-2012, 02:46 PM   #39
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Why in the world would a pain focus be the same as a svt or st 170 you wheretold once a zx3 is just how many doors 2 + hatch zx 5 4 + hatch a svt come in zx 3 or 5 like i have a svt zx3. Zx5 or 3 is just door related there no thing of a zx3. Either s se ses now titanium
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Old 12-27-2012, 02:51 PM   #40
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Quote:
Originally Posted by AJ_ST170 View Post
Thanks turbosvtfocus04 and Puke

Okay so its confirmed that the ST170 (uk) is the SVT (usa) but i would still like to know if the ZX3 is the same car, interms of engine and transmission...

I have a 63mm exhausted done and the car sound and responds very nicely.

I have also turned the original air feed pipe upside down and it fits behind the grill. Notice better response at top end.

*
I cannot launch the car even with the traction control off!!!! Need Kill switch Diagram

If i rev past 7000rpm and change it holds the clutch!!!!! Lost a few races because of this.

Help Please?

zx3 simply means "2 door hatch", you can get a zx3 with a multitude of different engines. Example:

zx3 zetec
zx3 svt/st170
zx3 duratec 2.0
zx3 duratec 2.3

zx5 stands for "4 door hatch", but comes with all of the same engines as the zx3.


The SVT/ST170 engine is very similar to the zetec engine, but there are some changes that make it to where you have to buy svt/st170 specific parts for most of the mods you do.

Regarding building power with the SVT/ST170 engine, most n/a mods are very expensive and do not build alot of power. I highly recommend looking for a supercharger or turbo setup if you really want bang for your buck. Im not sure what laws are on the other side of the atlantic, but you are better suited going for boost than with trying to build N/A.


good luck!
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