EFR7670 bottom mount.. My new ST kit

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
We decide to do it with two WGs, because we have concerns it could creep with one 44mm with the short runner manifold. About the price, i dont know how it will cost to me, because the guy have to compesate me for screwing my whole summer, but i asked him how much will cost another one and it will be 1700usd. Ohh and the dumps will be recirculated.
 
Last edited:

Optigrab

Corporal
Sep 19, 2018
133
56
0
Ride
08 135i
We decide to do it with two WGs, because we have concerns it could creep with one 44mm with the short runner manifold. About the price, i dont know how it will cost to me, because the guy have to compesate me for screwing my whole summer, but i asked him how much will cost another one and it will be 1700usd. Ohh and the dumps will be recirculated.

If he can deliver on time people will pay and wait. He would probably be faster than some vendors on this platform.
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
He is not a scamer and will not steal peoples money, but he dont respect terms very much.
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
IMG-64f998db21357822dbf5e0aa80830cda-V.jpg
IMG-6c8cacd8aad92df9911c6b89854ad290-V.jpg
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
The car is up and runnig fron a month, but have problems with AFR readings may br from the too long o2 sensors spacers. We will cut them these days and try again.
 

chadillac2000

Corporal
Oct 26, 2017
233
255
0
NC
Ride
2008 BMW 135i
Only takes like twenty minutes to re route that wiper fluid filler neck. Makes for a much cleaner install and you won't get melted plastic all over your shiny new parts!
 
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Erichale77

Lieutenant
Nov 14, 2016
827
447
50
Clearwater, FL
Ride
07 E92 coupe
^ This. That neck WILL melt there. Gold tape or not. Looks like your 02's are at a 45* to exhaust flow (not ideal) and make sure the 02 sensor orifice is facing exhaust flow. Align that orifice up with dimple in spacer.
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
Could you guys show me how to re route the fluid neck and what you mean by aligning the orifice, isnt it right in the center of the o2 sensor. Thank you very much.
 

chadillac2000

Corporal
Oct 26, 2017
233
255
0
NC
Ride
2008 BMW 135i

Erichale77

Lieutenant
Nov 14, 2016
827
447
50
Clearwater, FL
Ride
07 E92 coupe
The 02 spacer should have a hole in one side and that side should face the exhaust flow. You 02 sensor should screw into spacer. There's a dimple on top of spacer to mark where hole is.
 

cloud9blue

Sergeant
Oct 17, 2017
255
190
0
Ride
09 E92 335i
Great to see another 7670 setup taking shape. Any update with the car running and dialed in?

I recently switched back to JB4 for boost control. The boostbox just wasn’t all the reliable on my car for whatever reason. Sometimes you get full boost sometimes you don’t. Never figured out why.
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
Hi, we dialed in the car with Trebilla to around 21psi pump gas. I am lazy to fine tune the duty bias. Ill post logs later, but i have to dyno it.
 
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cloud9blue

Sergeant
Oct 17, 2017
255
190
0
Ride
09 E92 335i
Curious to see the dyno results. I dynoed my last spring with a buggy boostbox that was constantly underboost and still get 450whp on a Mustang dyno.
 

gixercho

Specialist
Mar 3, 2018
54
42
0
Ride
E92 335i Custom ST
Random one, like i said duty bias is not dialed in and its 4th gear log. I like 3rd gear one more, but there is no traction for more then 12psi now in the cold.
 

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