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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 07-11-2014, 04:51 PM   #1
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Default A Smaller EFR

2.0L Ecoboost stock turbo (Focus ST), it looks like an EFR, it drives like an EFR, its made by BorgWarner, Ford Racing claims its a ceramic ball bearing turbo with a low inertia turbine. It has the EBCS and the BPV built onto the compressor cover. And unlike a lot of OEM turbo's these days its not cast into the exhaust manifold. Another upside, its only $1300 from the dealer new. But the housings are goofy shaped, as in, if you put it on a side mount manifold it might be sticking out of the hood, or on a top mount the waste gate flange is angled upwards, and on a bottom mount manifold it would be inside the frame rail unless you stuck the flange very close to the block.

Pictures taken from full race




Geoff says its a K03 but its got to be a new model K03, redesigned with the EFR tech.
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A Smaller EFR-efr11.jpg   A Smaller EFR-efr12.jpg  

Last edited by Leafy; 07-11-2014 at 05:01 PM.
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Old 07-11-2014, 05:10 PM   #2
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No Ti-Al turbine wheel = no magical EFR spool

As far as I understand, Ti-Al turbine wheels are ~5 years out from being applied to an OEM application.
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Old 07-11-2014, 05:14 PM   #3
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Quote:
Originally Posted by Efini~FC3S View Post
No Ti-Al turbine wheel = no magical EFR spool

As far as I understand, Ti-Al turbine wheels are ~5 years out from being applied to an OEM application.
More searching to be done. I guess they could be "low inertia" the same way that the Kamak SLS turbines and Garrett GTX are, but having less fins but better aerodynamics to make up for it.
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Old 07-11-2014, 06:38 PM   #4
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We've got a '14 Focus ST in the garage. It's the wife's DD. Factory boost of 20psi is quite fun and quick spooling, but still under 300hp. My 6258 arrived today and was under $1500 with the v-band flange and clamp. At $1300 for the ST turbo, its not a big enough difference to consider IMO.
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Old 07-11-2014, 06:44 PM   #5
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Yup, these seem to top out at 280hp. Its perfect for someone who doesnt want 6258 power but wants something with less lag than a 2560R.
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Old 07-11-2014, 06:44 PM   #6
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Quote:
Originally Posted by TheBandit View Post
Factory boost of 20psi is quite fun and quick spooling, but still under 300hp.
...so perfect for a stock BP?
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Old 07-12-2014, 11:46 AM   #7
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If you are only making 280, why bother with the hassle of this funky turbine arrangement. Just so it spools a couple hundred rpm better? I think you'll find part of the spool time reduction in the direct injection as well.

For the record I love my FoST. Spools fast and loads of fun. I just don't think this is the droid you are looking for. If it was $600 maybe.
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Old 07-13-2014, 02:38 AM   #8
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Are the ST guys commonly swapping turbos? Seems to be an easy cheap pickup on ST forums, a quick cut, and a V-band flange welded on.
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Old 07-13-2014, 03:16 AM   #9
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There are a few GTX and EFR turbo setups and no clue what the used ones go for. Most keep it to swap back to for dealer issues. There are some going 300+ on stock turbos I thought.
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