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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    F90 Quick Install WMI

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      10-28-2019, 09:58 AM   #1
Fuel-It!
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F90 Quick Install WMI

Was able to checkout BMS' new water/meth injection setup yesterday in person as Shift Sector and I have to say it is pretty clean.

The most challenging part to doing a kit with the F90 is finding a way to mount the nozzles without disassembling half the engine bay. Their setup is based around CNC machined quick install nozzle adapters that install the nozzles inside the balance tube holes, still allowing boost to equalize between banks using small holes machined in to the nozzle adapter.

The pump and tank can be mounted in the trunk like a traditional setup, you can rig a dedicated 1 gallon tank/pump in the passenger side cowl, or you can go really lazy and just zip-tie the pump in the cowl and attach it's pickup to your washer fluid tank. In theory you could tee in to it so the wipers still work but for their install they just unplugged the wiper line and plugged it in to the pump instead.

The JB4 controls the WMI flow, raises boost as a function of WMI, and reverts to lower boost if meth stops flowing, flows less than expected, etc. If using the wiper tank you even get a warning in dash if the tank is low. Best part is it's compatible with the factory flash or any aftermarket flash you want to run. Most guys doing WMI are more heavily modified so I expect a lot will already be flashed.
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Last edited by Fuel-It!; 10-28-2019 at 10:09 AM..
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      10-28-2019, 05:10 PM   #2
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looks good. how's the result so far?
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      10-28-2019, 06:02 PM   #3
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looks good. how's the result so far?
It's hard to really quantify but appears to make 93 octane perform like race gas, as expected.
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      11-30-2019, 07:56 PM   #4
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Quote:
Originally Posted by Fuel-It! View Post
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Originally Posted by Bmw.mozambique View Post
looks good. how's the result so far?
It's hard to really quantify but appears to make 93 octane perform like race gas, as expected.
Why would we want to install something when it's not quantifiable? I just don't understand that logic anymore. Let's spend some money and not know why...why isn't burger putting up numbers with and without meth since they have developed it?
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      11-30-2019, 08:48 PM   #5
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Originally Posted by F90BSM5 View Post
Why would we want to install something when it's not quantifiable? I just don't understand that logic anymore. Let's spend some money and not know why...why isn't burger putting up numbers with and without meth since they have developed it?
Making pump gas run like race gas quantifies it, that's all it's supposed to do. Maybe a tiny bit of added power from cooling the intake temps, but that's more of a positive side effect than reason people do it.
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      12-01-2019, 11:35 AM   #6
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Originally Posted by F90BSM5 View Post
Why would we want to install something when it's not quantifiable? I just don't understand that logic anymore. Let's spend some money and not know why...why isn't burger putting up numbers with and without meth since they have developed it?
WMI effectively makes pump gas perform like race gas. But this kit is really intended for people who are familiar with WMI, have used it on other platforms, and are looking for a clean way to adapt it to their F90.
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      12-02-2019, 09:29 PM   #7
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Originally Posted by Fuel-It! View Post
WMI effectively makes pump gas perform like race gas. But this kit is really intended for people who are familiar with WMI, have used it on other platforms, and are looking for a clean way to adapt it to their F90.
I'm new to WMI and likely going to place an order for this sometime this week. Do you know if any testing via dragy or dyno? How are the JB4 maps used after this is installed? I only see one, map 8, that says it's under development for WMI. I'm not sure what that means.
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      12-02-2019, 11:10 PM   #8
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Quote:
Originally Posted by gpdriver17 View Post
I'm new to WMI and likely going to place an order for this sometime this week. Do you know if any testing via dragy or dyno? How are the JB4 maps used after this is installed? I only see one, map 8, that says it's under development for WMI. I'm not sure what that means.
You can set WMI to flow on all maps but by default it flows on map8 only, which is an adjustable boost target map as a function of meth flow.
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      12-05-2019, 12:42 AM   #9
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personally I'm using snow performance stage 2 with dual number 3 nozzles (175ml/min nozzle each) fix at the bottom of the coolers just before the throttle body on each side and that's that best setup for me (bigger Nozzles tested and failed because of too much methanol injected) tried Nozzles number 4,5 & 6 (225ml/min nozzle 375ml/min nozzle 625ml/min nozzle) all tested with dragy (100-200 Km) times and the best tell now is to get 0.4sec faster time than (non-meth setup) still working on start injection psi and max injection psi which is a pain
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      12-05-2019, 12:02 PM   #10
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Originally Posted by Qtr.M.Power View Post
personally I'm using snow performance stage 2 with dual number 3 nozzles (175ml/min nozzle each) fix at the bottom of the coolers just before the throttle body on each side and that's that best setup for me (bigger Nozzles tested and failed because of too much methanol injected) tried Nozzles number 4,5 & 6 (225ml/min nozzle 375ml/min nozzle 625ml/min nozzle) all tested with dragy (100-200 Km) times and the best tell now is to get 0.4sec faster time than (non-meth setup) still working on start injection psi and max injection psi which is a pain
.4sec is a solid amount!

I just ordered this kit. Planning on taking it to a dyno after installing to get logs/check gains. Hopefully BMS can help me with the settings...
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      Yesterday, 10:36 AM   #11
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Quote:
Originally Posted by gpdriver17 View Post
Quote:
Originally Posted by Qtr.M.Power View Post
personally I'm using snow performance stage 2 with dual number 3 nozzles (175ml/min nozzle each) fix at the bottom of the coolers just before the throttle body on each side and that's that best setup for me (bigger Nozzles tested and failed because of too much methanol injected) tried Nozzles number 4,5 & 6 (225ml/min nozzle 375ml/min nozzle 625ml/min nozzle) all tested with dragy (100-200 Km) times and the best tell now is to get 0.4sec faster time than (non-meth setup) still working on start injection psi and max injection psi which is a pain
.4sec is a solid amount!

I just ordered this kit. Planning on taking it to a dyno after installing to get logs/check gains. Hopefully BMS can help me with the settings...
Quote:
Originally Posted by gpdriver17 View Post
Quote:
Originally Posted by Qtr.M.Power View Post
personally I'm using snow performance stage 2 with dual number 3 nozzles (175ml/min nozzle each) fix at the bottom of the coolers just before the throttle body on each side and that's that best setup for me (bigger Nozzles tested and failed because of too much methanol injected) tried Nozzles number 4,5 & 6 (225ml/min nozzle 375ml/min nozzle 625ml/min nozzle) all tested with dragy (100-200 Km) times and the best tell now is to get 0.4sec faster time than (non-meth setup) still working on start injection psi and max injection psi which is a pain
.4sec is a solid amount!

I just ordered this kit. Planning on taking it to a dyno after installing to get logs/check gains. Hopefully BMS can help me with the settings...

Good luck 👍🏼
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      Yesterday, 11:54 AM   #12
Fuel-It!
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Quote:
Originally Posted by gpdriver17 View Post
.4sec is a solid amount!

I just ordered this kit. Planning on taking it to a dyno after installing to get logs/check gains. Hopefully BMS can help me with the settings...
I'm sure they will just email them once it's setup
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