ACF Fabrication T4 Twinscroll Manifold

doublespaces

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Oct 18, 2016
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According to ACF this will fit an EFR 7670 through 9180, medium frame PTE turbos and the 35R frame size Garretts. I am partial to bottom mount kits, so this is pretty interesting to me, particularly because it will fit such a broad spectrum of turbos.

It will use a single, TiAL MV-R for both banks, here is pricing:

BW EFR Turbos

EFR 7670 $6,200
EFR 8374 $6,500
EFR 9174 $6,500
EFR 9180 $6,500


Garrett GTX gen2

GTX 3076R $6,400
GTX 3576R $6,600
GTX 3582 $6,700

PTE Gen 2

PTE 5862 $6,000
PTE 6062 $6,200
PTE 6266 $6,200
PTE 6466 $6,400
PTE 6870 $6,800


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335i_lou

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Nov 13, 2016
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Now this.... this is something that I would be extremely interested in. I'd like to do a bottom mount single turbski.
 

The Convert

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Jun 4, 2017
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It's the new bow tie manifold! Lol. If pricepoint is there for all the new cheap bastards, this manifold/kit will sell like crazy.
 

dyezak

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So I see a bottom mount EFR with an external wastegate turbine housing but without any external wastegates. Curious where they will be placed given packaging constraints...looks like the only place for them is right on top of the manifold which is cool for spring changes but a BITCH for routing of the dump pipes. I'm also curious if the dumps are going to be ATM or REC...

But looks f'n awesome!
 

jyamona

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Nov 7, 2016
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So I see a bottom mount EFR with an external wastegate turbine housing but without any external wastegates. Curious where they will be placed given packaging constraints...looks like the only place for them is right on top of the manifold which is cool for spring changes but a BITCH for routing of the dump pipes. I'm also curious if the dumps are going to be ATM or REC...

But looks f'n awesome!

Payam answered that on FB for me, yea that is where the WG will be. Going to be divided up to a single gate.
 

dyezak

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Payam answered that on FB for me, yea that is where the WG will be. Going to be divided up to a single gate.

And this is why I'd be hesitant to buy anything from Anthony at ACF. Lacking communication and customer support is his M.O. and he has had to rely on Payam to prop him up behind the BMS brand for previous issues to not blow up into pitchforks and torches coming after him. I know Payam and Anthony are good friends...but man, you'd think Payam would get tired of covering for his buddy.
 
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doublespaces

General of the Army
Oct 18, 2016
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I would like to see what that last runner looks like and am curious how they are going to route the water pipe.
 
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Oct 27, 2016
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And this is why I'd be hesitant to buy anything from Anthony at ACF. Lacking communication and customer support is his M.O. and he has had to rely on Payam to prop him up behind the BMS brand for previous issues to not blow up into pitchforks and torches coming after him. I know Payam and Anthony are good friends...but man, you'd think Payam would get tired of covering for his buddy.

Anthony has always been like that, cause he focuses on work. Thats why I was the face of the company before I joined BMS. I still help him out here and there because its not a big deal. BMS works with him on a daily basis, so Im constantly in the loop between these companies.

Anyways, this kit will be released very soon with dyno numbers and completed pictures to follow.
 

Mzfhartge

Specialist
Aug 17, 2017
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07 bmw 335i
So two external wastegate gated to one? Can we have more info on that please. Also with the option of 9180 efr turbo you can also do the internal wastegate ?
 

dyezak

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Actually really good price too. I'm still be partial to DOC due to their communication and business. But this is something I'll be deciding on this winter. I definitely want an EFR single, and right now I think this the only option so there might not be a "decision" to make. I guess if I want to install this around Jan/Feb I should order it now?? :neutral:
 
Oct 27, 2016
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Actually really good price too. I'm still be partial to DOC due to their communication and business. But this is something I'll be deciding on this winter. I definitely want an EFR single, and right now I think this the only option so there might not be a "decision" to make. I guess if I want to install this around Jan/Feb I should order it now?? :neutral:

Wait for the group buy price if you think these prices are good. This is just retail pricing ;).

Most of those turbos and wg alone is about 3k.
 
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doublespaces

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Oct 18, 2016
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Everything looks great. I am wondering what kind of spool difference you'd see between an equal length 'long' runner like this vs a short runner style like the speedtech/motiv/etc

Is it actually worth it to keep the equal length runners in practice? I know for optimal twin scroll spool you want equal length runners. But what happens if those runners were ten miles long?

I suppose I'm asking, all the turbo manifold design folks, at what point does it make sense to simply go with a mega short runner?