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I've seen this talked about before, but how would I go about hitting 200 WHP in a MkII focus? I have a completely stock manual 05' Zetec Focus, with a healthy-ish engine (Few issues like a misfire in the 3rd cylinder). Once the engine has the spark-plugs replaced how would I go about hitting 200 WHP. I've heard that the best first "Mod" to do to these car is replace the "Lifetime Air Filter" and replace it with a less restrictive air filter. Car currently has 140 HP (Has lost some over the years) so I need to gain roughly 60 HP to reach my goal of 200whp.
Any help is appreciated.
That's a lot to ask for the 2.0L but I'm sure it could probably be done, is that what it is or is it a 2.3L? Is this the duratec at all?
 

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I'm sure you could actually probably get it done, but you'd be talking about going full in on some pretty serious cams, full exhaust, tune and maybe intake. It would just be a lot of work, because since these are a solid cam-roller setup, you'd have to definitely have a machine shop set the valve lash if you were to do so.

Idk how cliche it is on here, but having completed a 2.5L swap, I really can't imagine why anyone wouldn't do it if you're even thinking about more power. At least for the US versions, it's a gain of 50hp over the 2.0L. With an intake, exhaust, and tune, 200hp is super easy. I'm not as familiar with the mk2 since we didn't get it here, even though mine is an '07, it's still a mk1. But I can't imagine that it would be that much different.
 

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From which focus is this 2.5L engine from (MK 2.5?)? We have a car called the XR5 (basically a focus) over here that has a 2.5L 5CYL Volvo turbo'd engine in it. People I know have experience with these engines and they make an easy 166 kw (225 HP) stock. Should I swap or retain the cars current reliability? This is the dilemma I am currently in.
That's not the motor we're talking about though. The 2.5L duratec is basically just your existing 2.0L except more displacement. All of your electronics would run one.

Here, they put them in a bunch of stuff. The transit, escape, fusion, Mazda6, Mazda3. For the Fords I think that'd be the Mondeo and Kuga.

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With a header, cams, tune , on a 2.0 it will cost alot of money for little reward. Turbo will be the best bang for the buck imho and the stock engine can handle it fine if you can find someone to tune it.
I'm going to friendily (is that a word?) counter this. The title of the thread isn't how to make a lot of power with the 2.0L, it's "How To: 200WHP". Of course forced induction will get you there but I'm going to argue that it is CERTAINLY NOT the bang for the buck route. 200HP is easy on the 2.5L without forced induction. I don't know what the market for those motors looks like on the other side of the planet, but I got my 2.5L for $200. A couple massivespeed parts thrown in and I don't think I went much over $500 USD total. It's also an almost bolt-in swap, with the required changes well documented.

I may be completely wrong, but I'm not aware of any turbo kits for less than at least $4k USD

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My 2018 has the 2.0 TiVCT duratec. Roush CAI, Dragon Works performance chip, and Fswerks racing exhaust system. Nitrous express 75 shot. Brisk spark plugs, msd coil packs.
Does msd make a coil for those motors? Or is there some adaption that has to be done?

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You are not making 200 wheel horsepower with a 2.5 swap for 500 dollars. That is absurd.
I didn't say I was, I said it was easy with the 2.5L. A decent set of cams, header, and tune would land you in the ballpark of 200hp. Accounting for having a valve job done, with the price I got my 2.5L at, I should be able to get there under $1,500

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