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Terry @ BMS Terry @ BMS is offline
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Join Date: Jan 2008
Default N54 Port Injection - 01-19-2015, 03:08 PM

Use subject to terms and conditions posted at

THIS PART IS LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND IS NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) This part may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THIS PART IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM BURGER MOTORSPORTS, INC, AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of this part, and Burger Motorsports, Inc hereby disclaims any liability resulting from the failure to use this part in compliance with all applicable federal and state laws.

Hey guys,

Making this thread for updates, details, and general discussion of port injection.

We offer several Port Injection kits now:

Fuel-IT Basic:

Phoenix Replacement PI Manifold:

Fuel-IT Deluxe:

In addition we offer various add ons like:

JB4 Port Injection Controller for Easy Integrated Control:

Fuel-IT Matched Injector Packages:

And of course replacement gaskets:

Frequently asked questions:

What is the low pressure requirement for port injection?

For up to 600whp the Fuel-It Stage1 low pressure kit is required. For higher power levels the Fuel-It Stage3 low pressure kit is required. The Fuel-It Stage2 falls somewhere in between in terms of power support.

Can I use port injection along with my water/methanol injection kit?

If equipped with WMI we suggest either removing it or going down to a single CM3 or CM5 nozzle primarily for cooling. When using the BMS PI controller the FSB orange wire will remain in place for the WMI trigger but the FSB blue wire will stay disconnected as its replaced by the PI controller signal.

What is the difference between the SplitSecond AIC6 as a stand alone and the JB4 PI controller?

The AIC6 is a simple stand alone system that allows mapping of port injection as a function of boost pressure and engine speed.

The JB4 port injection controller is fully integrated solution allowing enhanced port injection mapping and safety.

For example the JB4 port injection controller:

1) Uses low fuel pressure in conjunction with boost pressure to evaluate injection pressure and adjust PI IPW dynamically as required to maintain consistent flow volume. This becomes particularly important in applications that are the edge of their low fuel pressure supply. As low pressure drops or oscillates port injection IPW must be dynamically adjusted to avoid run lean conditions.
2) Monitors pedal input, clutch input, gear, throttle position, etc, allowing more advanced mapping and instant cut of PI when letting off the gas or when traction control kicks in to avoid backfires.
3) Monitors AFR in both banks and can cut PI flow in the event a misfire event is detected preventing a potentially lean condition.
4) Monitors current through the injectors and sends a signal back to the JB4 altering it of various problems including a clogged or disconnected injector, blown electrical fuse, loose ground, etc.
5) Monitors fuel trims in each bank and failsafes in the event of a mismatch of more than 15% indicating a potential boost single cylinder boost leak or injector flow issue.
6) Allows easy user adjustment of overall fuel volume using linear "Fuel Bias 0-100" values by RPM, greatly reducing the typical mapping complications when making manual tuning changes.
7) Integrates in to the JB4 multi-map system which produces on the fly PI mapping changes when you change maps, when boost is reduced in lower gears, or during anti-lag engagement.
8) When equipped with a JB4 integrated flex fuel sensor or JB4 virtual flex fuel sensor can automatically adjust port injection volume based on E85 mixture allowing for easy mixture changes.
9) Enhanced mapping logic such as tip in supplement to boost port injection during sudden transitions like spool up or gear changes where the high pressure pump tends to have problems keeping up.
10) Does not require a separate interface and cable for mapping and tuning port injection. It's all done right through the JB4 interface and logs greatly simplifying the process.
11) Includes an extra output to run your second fuel pump OR WMI PUMP (for port injection meth), eliminating the need for an extra Hobbs switch.

Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

Last edited by Steve @ BMS/Fuel-It!; 07-13-2017 at 09:25 AM..
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