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  1. General Technical Chat
    Hello all, I have a 2007 ford focus ST manual with the 2.3 duratec in it. developed an unhealthy knock and lets just say old motor is out... However, the new 2.3l i bought came from a 2004 focus... was a junkyard car, but motor and paperwork of 75xxx miles for 300$ through my employer...
  2. Engine & Transmission Swap
    Hello all, I have a 2007 ford focus ST manual with the 2.3 duratec in it. developed an unhealthy knock and lets just say old motor is out... However, the new 2.3l i bought came from a 2004 focus... was a junkyard car, but motor and paperwork of 75xxx miles for 300$ through my employer...
  3. DURATEC Performance (2003-2007)
    Hello all, I have a 2007 ford focus ST manual with the 2.3 duratec in it. developed an unhealthy knock and lets just say old motor is out... However, the new 2.3l i bought came from a 2004 focus... was a junkyard car, but motor and paperwork of 75xxx miles for 300$ through my employer...
  4. DURATEC Performance (2003-2007)
    so basically this has happened at least 3 times And from the time im writing this literally happened 3 hours ago. I have a 2004 ford focus 2.3l automatic and just hit 111,000 miles its been a family car literally since probably 40 miles but since it was given to me, decided to put on a CAI...
  5. DURATEC Performance (2003-2007)
    Looking to buy a new intake for my 04 Duratec. I wanted to know if anyone has had any experience with any CAI while living in Florida. I'm in the SE Florida and it rains here frequently so I wanted to see if anyone has had any issues. So far the main CAI I'd go for would be the CAI from FSWERKS...
  6. DURATEC Performance (2008-2011)
    Problem that many ford mechanics have unfortunately met, the 2.0 duratec is not starting. My previous engine blew up, and I bought an another. Previous owner on that said that the engine is not starting well, but I gambled that the reason would be ie. start motor or something that I already have...
  7. General Technical Chat
    When I removed my old engine from the bellhousing, the release bearing, a really weak spring, and a toothed ring popped right out. I was under the impression that the bearing and whatever the sping and ring are, were part of the slave cylinder assy? The bearing is fine, so I wonder what I should...
  8. DURATEC Performance (2003-2007)
    My 5 speed 2005 ST has developed a concerning sound in the past few days. A couple really. But the most noticible is a sort of groaning/scraping noise that oscillates, and increases in frequency with speed (but sort of weirdly, with bumps/suspensions travel/turns). It kind of sounds like a shot...
  9. DURATEC Performance (2003-2007)
    I was looking on ebay for a set of sporty headers , For my 03 zx3 duratec, there's alot more of a variety for the second gen focus aka 05-09 duratec, will they fit my focus or is it a bad idea getting the headers? help !
  10. Focus SVT
    So my buddy blew the motor in his 02 windowed the block snapped the timing belt so its fubar. What direction should I go? Should I find an EcoBoost and an mtx? Or should I find a duratec and boost it? The car itself is pristine for the year and it had around 130k when it went. Just looking for...
  11. DURATEC Performance (2003-2007)
    My current wish list that im slowly but surely gonna build up. Massivespeed Purple Oil Cap Massivespeed EGR Delete kit Massivespeed Front Strut Tower Brace Massivespeed Rear Shock Tower Brace Massivespeed Adjustable End Links Massivespeed Light Pulley System FSwerks Variable Exhaust Cutout Ebay...
  12. DURATEC Performance (2003-2007)
    I've been doing research on multiple forums and testing out theories myself but I've come to the conclusion that ford designed the duratec platform to be dependable on power output and pretty much regulates it's power through restrictions throughout the system. From the tip of stock snorkel...
  13. 03 Focus Duratec

    This was my very first car and still is my favorite car to drive. During high school I attempted to kill it many times but failed in all. Since then it has been used as a unique build in everytown I've lived in and still turns heads when I give it gas.
  14. Want To Buy
    I'm looking for an FSWerks header for a Duratec 2.3/2.5 and the flex to go with it. If you have a wideband too that would be cool. EDIT: I already purchased the items in question. No longer needed.
  15. Want To Buy
    in search of a focus zx3 turbo kit for the 2.0 duratec, located in sacramento but can pay for shipping want some prices needs to be a full kit, i have a sct x4 so don’t need that part but the rest will be needed if it’s fswerks, also first post!
  16. Vehicles For Sale
    VEHICLE IS SOLD: 2005 Focus ZX3 Track Car Complete (formerly raced SCCA Super Touring STU)
  17. DURATEC Parts (2003-2011)
    SOLD thanks to Hughesy27 Hi, according to the Buy-Sell-Trade area rules: a.For Sale: set of 4 Clevite H series rod bearing for Duratec 2.0L engine; b.Send from: Canada, Quebec; c.Asking price: 50$ + shipping d. e. contact: Jean Sebastien Vaillancourt aka JSV; f. contact me by PM. now the...
  18. Vehicles For Sale
    123xxxk miles Pros: New clutch (roughly 13k miles old) CAI (california legal) SVT Full suspension kit (just installed around 123k miles) Nice induction noise from the CAI Pioneer AM/FM receiver (nice sound) Cons: Wheels need to be replaced (two are very slightly bent) Check engine light is on...
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