JB4 Universal Water/Methanol Injection (WMI) Kit (2024)

Make tremendous amounts of power on pump gas!

Water/Methanol/Alcohol injection commonly referred to as WMI allows you to make tremendous amounts of power on pump gas. The effect is similar to running 100 octane race gas or E85 fuel all the time with the additional cooling benefits allowing for more power than you can make on race gas or E85 alone.

FSB JB4 Water/Methanol Injection (WMI) controller

The BMS JB4 FSB Water/Methanol Injection (WMI) controller allows the JB4 to control your WMI pump and solenoid for dynamic progressive flow mapping. It also allows the JB4 to monitor pump current to overlay it with CANbus feedback for tuning parameters such as fuel trims and fuel pressure to provide a comprehensive flow-based safety system.

The key to a safe and effective Water/Methanol Injection (WMI) setup is tuning integration. All BMS kits integrate to the JB4 tuning system allowing for precise mapping based on boost, throttle position, engine speed, intake temperature, advance, gear, and other data elements available to the JB4 through its CANbus system. In addition, a pump flow signal is fed back to the JB4 allowing for a safe and smooth progressive boost mapping. If the tank runs empty or flow drops for any reason the JB4 will safely back down performance to avoid knock. In addition, WMI can be activated or disabled from the driver’s seat, will automatically disengage during traction control or safety map situations, and WMI flow data can be displayed in dash and/or via your JB4 Mobile logging device.

BMS kits include a high quality 220psi Aquatec WMI pump (the industry standard), methanol compatible solenoid with filter, compression fittings reducing the risk of dangerous leaks, and all required wiring and mounting hardware.

The base kit includes a WMI pump, solenoid, FSB for JB4 integration, WMI solenoid, filter, 20' of WMI line, and required fittings. Using the options when adding to cart you can add on a WMI nozzle (BM10 suggested for most applications), tank, and optional checkvalve tank tap to keep vapors inside the tank.

Optional check valve tank tap to keep vapors inside the tank is available at the bottom of the page

Injection Nozzle Options: (Single or Dual Nozzles)

The nozzles are determined by the intended power and how many bungs your charge pipe has. The nozzles are 1/8” NPT and screw into bungs included on most aftermarket charge pipes. Our "super atomizing" nozzles are well known for their great atomization and flow characteristics. The nozzle number represents the approximate gallons per hour of fluid when at full flow. Generally speaking, running two smaller nozzles is preferred to one larger nozzle for an equal flow to improve fluid atomization and distribution. Feel free to email us for nozzle advice if your situation is unique.

What's inside our methanol injection nozzles?

Methanol Injection Nozzle guide

N20/N26: Single BM7
N54/N55 with factory turbo(s): Single BM10 or Dual BM5
N54/N55 with larger hybrid turbo(s): Single BM12 or dual BM7
B48 with factory or larger turbo: Dual BM5
B58 with factory or larger turbo: Dual BM7
S55 with factory turbo(s): Dual BM5
S55 with larger hybrid turbo(s): Dual BM7
s63tu with factory or larger turbos: Dual BM10

2 gallon universal low profile tank

The Burger Motorsports 2 gal. universaltank allows the methanol pump to mount to the bottom of the tank making for a clean and fast installation. It’s universal in nature and will fit a wide variety of trunk applications. The larger capacity means more time between WMI fill ups. Offered in black and in clear to allow visually checking the fluid level.Includes a 2-way vented black plastic cap and a compression pump feed fitting. Upgraded billet lid with a 1-way check valve available. Comes pre-tapped for the pickup fitting. W orks with all DDP 5800 pumps.Made in USA.

Tank dimensions:L 15.5" x W 8" x H 8.25"

BMS 3 gal. STEALTH TANK

BMS Stealth Tank
With our 3 gallon stealth tank the WMI pump mounts directly to the tank and the entire assembly fits cleanly within the existing trunk cavity in your F3X or F8X vehicle below the trunk floor. Works with all DDP 5800 pumps. Made in the USA.

Comes with a standard 2 way vented black plastic cap.
Upgraded billet lid with 1-way check valve available below.

Tank dimensions: L 26.75" x W 9.75" X H 7.5"

Vehicle Fitment

BMW
• 2012-2018 BMW 3 Series F30 sedan
• 2015-2020 BMW F80 M3
• 2014-2020 BMW 4 Series F32 coupe
• 2015-2020 BMW F82 M4 (does not fit convertible)

BMS 2 Gallon Stealth Water/Methanol Injection (WMI) for F10 5 Series BMW hides under the trunk deck

This completely custom design fitscleanly within the existing trunk cavity in your F10BMW for the ultimate easy to install no compromise kit. The Water/Methanol Injection (WMI) pump mounts directly to the bottom of the tank allowing for a quick and clean installation. The bottom of the tank includes a sump and baffle allowing for consistent performance even as the tank drains. Includes 2-way vented black plastic cap and a compression pump feed fitting.

Tank dimensions: L 16.5" x W 6.5" x H 8.25"

Vehicle Fitment
• 2011-2016

F10BMW 5 Series sedan all models including M5

Optional Upgraded Billet Water/Methanol Injection (WMI) tank cap w/safety check valve (Recommended)

The Burger Motorsportscustom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out!

Each cap is CNC machined in the USA from a solid block of billet aluminum, engraved with the BMS logo, and anodized blue for protection

Click here to purchase

JB4 Universal Water/Methanol Injection (WMI) Kit (2024)

FAQs

Is water methanol injection bad for your engine? ›

A significant number of vehicle owners currently use water/methanol injection. It can improve car engine performance and increase horsepower by 40 to 45. When you're mixing it, make sure you get the correct 50/50 ratio. If you do not, you risk weakening or damaging your engine's performance.

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What is the downside of methanol injection? ›

The main disadvantage of water injection is that the water or water/methanol fluid is an additional, separate consumable. Usually, the water is used to prevent detonation and running out of water necessitates running at a lower power.

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How much horsepower does water methanol injection add? ›

Then with a mix of 75 percent methanol and 25 percent water the power jumped to 890 for a gain of roughly 60 horsepower. So a 60-hp increase is nothing to scoff at. Now that we have an idea of what water/methanol injection is worth, let's get into why all this happens.

Do you need to tune for water methanol injection? ›

Installing water/methanol injection without retuning your engine will usually cost horsepower, as the water replaces some of the combustable air inside the engine. If you can't advance the timing, increase the boost pressure, or both, don't bother adding water/methanol injection.

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Is WMI worth it? ›

Pro: Cost-Effective Boost to Horsepower

Going back to the cost of race gas, at the current price of around $20.00 per gallon or more, filling a 20-gallon tank with 118 octane race fuel for one weekend of racing is about the same cost of one WMI system.

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Will methanol hurt a gasoline engine? ›

In truth, Methanol, in 5% or less concentrations, will not harm late model vehicles. The only possible harm could come from a gasoline-methanol mixture greater than 95:5.

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Is methanol injection worth it on naturally aspirated? ›

It's hard to believe that injecting water and anything else into an engine in the quest for more power can actually be a good idea, but the truth is that water/methanol injection is beneficial to all forcibly induced and naturally aspirated engines-if done properly.

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How long does water methanol last? ›

Depending on the nozzle size & trigger point, 1gallon of meth should last you at minimum of 2 fuel tank fill ups. My(1gal) last me rough 8-10 fillups. I run a 5gph nozzle spraying at 10psi & up. I run HEET in the yellow bottle at walmart, it runs ~$8 gallon.

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Does methanol injection increase octane? ›

Ratios of anywhere from 30% to 50% methanol work well and deliver excellent octane gains and cooling.

Does water methanol injection increase MPG? ›

Diesel MPG-MAX systems benefit from the methanol directly due to the fact that it combusts as a fuel, allowing for brake specific fuel consumption (BSFC) to be reduced. Typical gains are 10-15% better fuel economy or 1-3 MPG. In some cases and in independent testing, gains of up to 30% have been observed in diesels. 6.

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What is the best water methanol mix? ›

Water/Methanol Mixtures & Ratios

Typically the standard ratio for distilled water to methanol would be 50:50.

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Does water methanol clean valves? ›

Because water-methanol increases octane in the fuel, it allows for more power and performance and intake cooling and valve cleaning.

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Where is the best location for a water methanol nozzle? ›

Also placing the injection nozzle as far from the cylinders/air intake sensor as possible, it allows for the water/methanol mixture to be better absorbed into the intake air charge. This allows for great distribution to each cylinder.

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What is the purpose of the water methanol injection kit? ›

The mist of alcohol and water being injected into the engine will dramatically lower intake temps, meaning it'll make a lot more power. It also raises the octane content of the fuel, making the engine less likely to knock & meaning you can run even more boost, and even more timing.

Does water methanol injection increase octane? ›

Pro: Make More Power Without Using Race Gas

Water injection systems provide a way to effectively increase the octane rating of pump gas, providing a long-term cost-benefit to making reliable power gains.

Does water injection clean the engine? ›

In summary: But the water that is injected to clean the engine is worse.In summary, the water spray or pour method is claimed to clean carbon deposits from a car engine, but there is no evidence that this is a reliable method.

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What are the problems of using methanol in an engine? ›

Tendency to evaporate in fuel lines. Corrosive and chemical degradation of materials. Poor lubrication properties of methanol and degradation of oil lubrication properties may lead to an increased wear on engine fuel systemcomponents. Lubricity additives are needed.