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MK2 Focus RS Borg Warner EFR

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Old 08-02-2018, 09:07 PM
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Pardeep
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Default MK2 Focus RS Borg Warner EFR
Evening all

just some advice needed for those who are using BW EFR turbos on their MK2.

Looking for 400/460bhp and want to know what EFR Turbo is a good suit for the RS' 5pot?

cheers
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Old 09-02-2018, 06:02 AM
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I bet it is the 7064
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Old 09-02-2018, 10:25 AM
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Standard RS turbo will do around 440bhp max? Or hybrid can go a little further.

Or will you be pushing it more in the future?
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Old 09-02-2018, 02:37 PM
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As said, if you are stopping at 4-460ish then either the standard turbo is fine or a hybrid if you want it to hold a boost a bit stronger at the top of the revs. Have a chat with Jason at JW Racing about hybrids and what you want. Failing that if you're dead set on an EFR give Devil Developments a ring. Lee should be able to spec an EFR to suit what you need rather than just going for an off the shelf jobby.

Regards,

Tom

PS forgot to mention, my mk2 FRS is on the standard turbo and is CP400. CP420 HT/Revo 4+ etc run standard turbos as well and pull like trains.
Last edited by homer j; 09-02-2018 at 02:40 PM. Reason: PS added.
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Old 09-02-2018, 02:39 PM
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Originally Posted by XRT_si
Standard RS turbo will do around 440bhp max? Or hybrid can go a little further.

Or will you be pushing it more in the future?
If I'm going for 400/470bhp then I'd like a turbo for 550bhp simply because I don't want to be on the limit of the turbo. Would still like some room for a little more as it'll be set up on an EMU ECU
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Old 09-02-2018, 02:45 PM
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7064 does 530 max on a cossie 2.0
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Old 09-02-2018, 06:09 PM
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You won’t get 550 from a 7064
They are a 500hp rated turbo.
I would give devil developements a ring as they know they’re stuff when it comes the focus rs and I see your only in Middlesex.
If 550 is your goal I’d get a 550 rated turbo now and just run it at lower power rather than going for 460 now then having to change turbos further down the line

Cheers Paul
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Old 09-02-2018, 06:14 PM
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7670 efr does 630bhp or More on cossie. Mark has run 530 on 7064.

Is the RS 2.5 l? If so would prob need the 7670
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Old 09-02-2018, 06:31 PM
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Is there a lot of people running efr’s on the focus’s?

Don’t think I’ve actually seen one yet...

Seen a lot on precision turbos

Cheers Paul
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Old 09-02-2018, 06:41 PM
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Jonfoc went out in one with the smaller version of my turbo and he was shocked by how fast it came on boost.

My 2.2 stroker will spin up my 7064....in Mark Shead’s words “like electric”
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Old 09-02-2018, 07:16 PM
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Jonfoc went out in my focus with a 6758, it comes on boost very strong very early. For your goals speak to Mark Shead but a 7064 will do what you want for sure.
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Old 09-02-2018, 07:43 PM
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Originally Posted by dodge8283
Jonfoc went out in my focus with a 6758, it comes on boost very strong very early. For your goals speak to Mark Shead but a 7064 will do what you want for sure.
He said it was absolutely amazing. Did Mark map yours?
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Old 09-02-2018, 07:48 PM
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Yes mate, it was low boost when John drove it too. It is having itb fitted then back to Mark for a tweak soon.
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Old 09-02-2018, 08:03 PM
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Originally Posted by dodge8283
Yes mate, it was low boost when John drove it too. It is having itb fitted then back to Mark for a tweak soon.
I am prob going itb on my stroker 2.2 cossie, I had my cos 205 back from mark in low boost and it broke the gear box, when I put the new box on I could not believe how brutal high boost was in my little 205...I am actually a little fearful of how it will be on the new motor.
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Old 09-02-2018, 08:41 PM
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Spoke to Ben at Jamsport. He highly recommended a EFR7163. Said it has a much better spool than the EFR7064 on the 5 cylinder engines.

Waiting to hear back from Devil Developments.
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Old 09-02-2018, 08:48 PM
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That might work out, I think 800bhp tried it on a cossie and didn't work.
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Old 10-02-2018, 10:34 AM
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Originally Posted by Caddyshack
That might work out, I think 800bhp tried it on a cossie and didn't work.
i had a 7163 TS on a YB and it was miles better than the T38 that was on it before. was making 37psi @ 4900rpm on a light car in 4th
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Old 10-02-2018, 11:56 AM
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Originally Posted by 20/20 vision
i had a 7163 TS on a YB and it was miles better than the T38 that was on it before. was making 37psi @ 4900rpm on a light car in 4th
a 7064 does that at 3400rpm where the 7163 is surge limited then ebp limited at the top in twin scroll format.

Mark
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Old 10-02-2018, 12:26 PM
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Originally Posted by Mark Shead


a 7064 does that at 3400rpm where the 7163 is surge limited then ebp limited at the top in twin scroll format.

Mark
yes Mark, I now have a 7064. at 3400 the 7163 managed about 12 pounds
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Old 10-02-2018, 03:36 PM
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Originally Posted by dodge8283
Jonfoc went out in my focus with a 6758, it comes on boost very strong very early. For your goals speak to Mark Shead but a 7064 will do what you want for sure.
What power does yours make on 6758 mate?

Cheers Paul
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Old 12-02-2018, 05:12 PM
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Hi bud, my car is currently doing 371whp and 400 wtq, thats 4-5psi down from when Mark mapped it.
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