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 Post subject: Duratec 2.0 Sourcing
PostPosted: July 11, 2019, 2:50 pm 
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Joined: August 29, 2012, 4:45 pm
Posts: 6
Hi,

I'm getting back into a 7 after a long absence and have decided that the 2.0 Duratec is the way to go (with aftermarket throttle bodies and ECU for EFI). I was wondering what the best way to get a long block in the US is, please? My plan was to source all the 7-specific parts from Raceline in the UK.

I am not planning an elaborate build as this is mostly a road car- I'd be really happy with ~180 BHP to start with and retaining stock internals. Can I therefore get away with scooping up a long block from a junkyard Focus? If so, is there a minimal level of rebuild/stripdown that would be recommended before installing and setting up the EFI?

Also, am I right in thinking that I'm looking for any of the non-VVC 2.0 Duratecs found in the US Focus (model years 2005-2011)? Are there any differences within that class? I see references to "high-port heads" - does that apply here?

Many thanks!


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 11, 2019, 4:05 pm 
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Joined: January 1, 2012, 12:44 pm
Posts: 365
Location: Boise, Idaho
Start looking for long blocks on Car-part.com. Use different search areas by states or regions. In my experience, the yards remove the alt, starter, AC, PS components, so you'll want to get new ones of those. Get an engine with the fewest miles so you don't have to open it up.
The Duratec doesn't have a keyway in the crank for the harmonic balancer, cam/oil pump sprocket. On my first version of the Duratec 2.0 in my build (Another Evolution by Ron), I was able to add the crank trigger wheel for Electromotive ECU without removing the harmonic balancer.
Note: since your'e not using stock ECU, don't get the stock alternator. The voltage regulation is done by the ECU. I used a '95 Ranger alt with an internal regulator.
It's my understanding that the the 2.3 and 2.5 engines have the "high" port.
I'm currently in the process of putting a different engine in my car, so the Duratec 2.0 will be for sale. It's been warmed up with forged crank, h-beam rods, 11.4 pistons, mild cams, Cosworth short stack plenum manifold (clone), 28 lb injectors, 4-2-1 header, light weight flywheel/hd disc/upgraded PP and dry sump oil system. 175 WHP/210 FHP. I'd sell it as described for $5.5k or with the wet sump oil system for $4.5k. Another $500 for the 2008 Miata 6-speed.
Yes, the non-VVC is preferred. I thought that the VVC started to show up around '08?

Ron


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 11, 2019, 10:24 pm 
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Joined: August 29, 2012, 4:45 pm
Posts: 6
Thanks Ron - I will check out car-part.com! What would be considered a reasonable number of miles on a 2005-2011 donor engine without having to rebuild? 60-75K?

According to this website, 2005-2011 was non-VCT and 2012+ was VCT and direct injection.

Regarding the lack of keyway on the crank - folks seem to use aftermarket EFI systems routinely on this block - presumably they've found a way around it to mount the trigger wheel? How did you mount it without removing the balancer?

Thanks for the offer of your motor - sounds amazing, but ultimately too much for my needs on the road.


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 11, 2019, 11:04 pm 
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Joined: January 1, 2012, 12:44 pm
Posts: 365
Location: Boise, Idaho
Yes, the mileage range you listed is a good one.
Some standalone efi systems have the capability to specify the trigger wheel spec, so those can use the stock wheel. The one I've used, has to have a 60-2 wheel. The stock harmonic balancer on my engine has a machined dished surface, so I turned an adapter to mount the trigger wheel on which the fit the dish. The three spokes of the balancer were drilled and taped to fasten the adapter.


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 12, 2019, 3:19 pm 
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Joined: August 29, 2012, 4:45 pm
Posts: 6
OK, thanks. I now see why you couldn't use the Ford trigger wheel. Your solution sounds neat.

It seems weird that Ford didn't "lock" the cam wheel to the crank with a keyway. Is that how they did it on the Zetec too?

Which ECU would you use if you were doing a Duratec today with throttle bodies?

Thank you!


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 12, 2019, 4:19 pm 
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Joined: January 1, 2012, 12:44 pm
Posts: 365
Location: Boise, Idaho
The Zetec has traditional keyway.
I'd use Electromotive TEC-S, but then I've been using their systems for 25 years.
I'd suggest you research AEM EMS-4 and Megasquirt 3. This isn't a recommendation because I've installed a grand total of ZERO of them.
A. Moore used MS3 on his Duratec ITB setup. Maybe he'll lend his experience to your effort.

Ron


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 Post subject: Re: Duratec 2.0 Sourcing
PostPosted: July 18, 2019, 1:03 pm 
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Joined: September 19, 2009, 12:33 pm
Posts: 439
Any reason you wouldn't go with a 2.3 from a Focus ST or Ranger, or the 2.5 from a Fusion? They're all the same engine on the outside, some just have a little extra room on the inside.

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