3rdCarMX5

iTrader: (1)

I couldn't find an example of this combo. Anyone know if they would work together?

I know the S4 is compatible with A/C and P/S, even though it is a little tight.

I also know the EFR is a huge turbo.

Do they play well together? It would be in a '99.

Before you ask, I wanted to pick up a used S4. I don't want to wait for Artech/Absurd.

Thanks.

18psi

iTrader: (76)

No.

thenuge26

iTrader: (2)

Check out Soviet's thread, that will give you a good idea of EFR fitment (since he took it off so much). Short answer is no.

Long answer is noooooooooooooooooooooooooo.

At best you will need a custom downpipe. At worst there might not be enough room for a downpipe.

3rdCarMX5

iTrader: (1)

I should have written that I was only interested in the s4 manifold with a custom downpipe, not the whole kit.

I know that fael had a different non efr borg on a begi manifold. I sort of guessed an efr couldn't be a/c and p/s compatible based on the overall length leaving no room for a downpipe without a cheater bend.

Faeflora

iTrader: (2)

No way with ac and ps. Ever.

Yes you will need a custom downpipe.

I would call up begi and give them the efr dimensions and ask em if it will fit.

Knowing begi though, they will likely give you the wrong answer.

I say just wait for artech

ianferrell

The efrs are like a mile long. Won't fit... A 2560 with PS is a squeeze with that manifold.

99mx5

iTrader: (16)

Here's a blurry top-down pic of my EFR. Notice that the collector is in between the #1 and #2 runners on the head flange. This is as far back as possible to get a 3" downpipe on it without hitting the rear engine bay shelf.
PS? Nope!

Savington

iTrader: (31)

We will have an A/C and P/S compatible manifold/downpipe specifically designed for the EFR6258 and EFR6758 on the market within 60 days.

krissetsfire

iTrader: (1)

I love you. No homo.

zipstrips

iTrader: (2)

keep me in the loop please.

3rdCarMX5

iTrader: (1)

If it ever comes out I will probably buy it, since I can walk and pick it up.

Ryan_G

iTrader: (8)

ARTech has a long runner low mount manifold that he designed for an EFR to be compatible with both AC/PS. He posted a pic of it somewhere on the forum but I cannot remember the thread. It is being made for FrankB if I am not mistaken so I will get to see it first hand when he gets back from deployment this year.

EDIT: I found it, here: https://www.miataturbo.net/artech-fa...inquiry-69584/

muoto

I have that ARTech manifold. Currently with Garrett + long v-band adapter.

here's a picture https://www.miataturbo.net/engine-pe...e2/#post947558

3rdCarMX5

iTrader: (1)

How's the 60 day deadline coming?

Anyone have a better picture of one of the above manifolds?

Savington

iTrader: (31)

The manifold we wanted to make isn't doable for a reasonable (<$1000) price, so we're looking into an alternative that will provide the same function at a price that makes sense.

MazDilla

iTrader: (7)

HHammerly

iTrader: (3)

I am almost finished building a manifold for my 99 AC PS efr turbo, wishing that i made it with smaller diameter primaries so i may make another one, i did have to mofify the PS and water pump inlet lines to fit everithing.

Amellrotts

iTrader: (2)

Props Harold!
My EFR with PS/AC is a short tube Absurd Flow style manifold that I made. I wonder how much is given up by not having the long tubes?

EO2K

iTrader: (37)

Wowsers. I don't know how you managed to wedge all that in there, but you certainly appear to have met that goal. Also digging the couil bracket

I'm guessing some pump and compressor heatshields are in your immediate future?

HHammerly

iTrader: (3)

I will make a time lapse build tread when i finish this build in a year (LOL) and will include spool and dyno information so we can compare notes and learn from each other's results on the efr's