Speedtech EFR 8374 on e84 X1

[wheela]

Here's the water pump/lines clearance with the pump/thermostat in the speedtech shifted positioning. The pump inlet hose just touches the compressor housing, but is not forced into position. I'll plug that boost port at the contact point and just pull a boost signal from my charge pipe I feel fitment against the compressor cover here is tight, but acceptable.

Boy that water pump outlet line is going to be tight though. TBD if I'll need to further shift the water pump to clear whatever I work our for the turbo inlet...

You can see the aluminum midnight Motorsports inlet - disregard the long length that doesn't line up, that will get trimmed back quite a bit. Plan A is to use it as a hose barb for a 3" silicone connection.

 

[wheela]

Small update. A couple months back,
I trimmed the midnight inlet down and rolled a bead on to make in into a silicone tube connector. I was able to cobble together a silicone inlet prototype, but I'd need to get a new elbow and re-trim for better fitment.

Honestly, I'm not sure I like this inlet, I'm worried it may collapse under vacuum if I connect to the full stock air ducting. Plus, I think it may need to route in towards the block more for the turbo outlet tube to clear between the inlet and and the frame rail on the way down to the intercooler inlet.

 

[wheela]

I decided to scan the mock-up so I can design my own inlet to fit. Will probably still plumb to the stock air duct, but am also considering designing a shorty hot side inlet incorporating the MAF sensor.

 

[wheela]

Been making some progress on inlet design. Definately not done, but things are moving in the right direction.

Also figured out a slight tweak for water pump placement to clear the larger EFR 8374 turbo.

 

[SLOWESTN54]

Random question but does MHD support Mac valve control via stock DME for the N55?

 

[wheela]

Random question but does MHD support Mac valve control via stock DME for the N55?

I'm not sure? They switched to MHD plus app for all n55, but I haven't looked into if that is one of the features. Anybody else know?

 

[houtan]

Right now we are controlling the Mac through the DME with MHD+ and a reflex plus combo. It works great.

 

[wheela]

Right now we are controlling the Mac through the DME with MHD+ and a reflex plus combo. It works great.

So you got rid of the GFB3 then? How are you liking boost control now?

 

[houtan]

Yeah. Once MHD plus came out and it was clear it actually worked I went from my AIC/GFB/Bluetooth ECA to a reflex plus.

It works awesome. Everything except port injection is set up in MHD+. 4 maps. Boost by gear. We also have the reflex getting boost reference from 3.5 bar tmap in the factory location on the manifold. On e series the manifold tmap is a 2.5 bar.

 

[SLOWESTN54]

Yeah. Once MHD plus came out and it was clear it actually worked I went from my AIC/GFB/Bluetooth ECA to a reflex plus.

It works awesome. Everything except port injection is set up in MHD+. 4 maps. Boost by gear. We also have the reflex getting boost reference from 3.5 bar tmap in the factory location on the manifold. On e series the manifold tmap is a 2.5 bar.

Perfect thank you, This is the information i was looking for. Helping my friend install his speedtech top mount kit soon here. But he's staying DI only with a Dorch 2.5 and M5 injectors, so i was avoiding having to buy a reflex.

 

[houtan]

Perfect thank you, This is the information i was looking for. Helping my friend install his speedtech top mount kit soon here. But he's staying DI only with a Dorch 2.5 and M5 injectors, so i was avoiding having to buy a reflex.

Glad it helped. Just to clarify because I feel like maybe I was too vague the first time.

The reflex plus controls port injection, the Mac solenoid, it also connects to the ethanol content analyzer, and for my car I added a low pressure fuel pump sensor.

All the changes for the tune, except for port injection, are done in MHD plus and the DME interfaces with the reflex seamlessly to control the Mac. So if the set up you’re installing is going to use a Mac for boost control, you would need either a reflex plus or a ebc like a gfb.

But after using both for an extended period of time, I would definitely go the reflex plus route because of MHD +.