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Terry @ BMS Terry @ BMS is offline
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Default Infiniti Q50 3.0t VR30DDTT Red Sport and Silver Sport BMS Stage1 & JB4 - 05-08-2017, 02:51 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.

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Order Link:

JB4 Mobile Smart Phone wireless connection directions Click here
BMS data cable hard wired software and directionsClick here

Stage 1 Map Guide:

Map0: Stage1 disabled
Map1: Default performance map, 3psi over stock
Map3: Custom Target Map, select desired maximum boost over stock under "Boost Safety" user adjustment setting
All other maps and settings are unused

The idea behind the Stage1 is an inexpensive and easy to install/remove product that provides substantial gains with minimal headaches and trade offs. The Stage1 manipulates the ECU boost control signals allowing us to modify boost levels, but does not manipulate the ECU manifold boost reference, allowing it to properly map timing and fueling for the higher boost levels. The end result is something that runs as smoothly as stock only with higher boost targets under heavy throttle.

The Stage1 is not intended to provide the same maximum power gains you might get with a full custom ECU tune. Although based on today's dyno testing, the initial results for the Stage1 are still quite impressive. We envision a quick installation product that can be used with the factory tuning and even with aftermarket flash tuning for those looking raise boost a little in conjunction with higher octane via E85 or race gas.

For these tests we used a 30% E85 mixture, mixing in 5 gallons of E85 to a full tank of 91. Next round we will test 93 octane. With the stock tuning we were able to make ~320whp. We then used the Stage1 tune to test progressively higher boost levels, adding 4psi, 5psi, 6psi, and ultimately 7psi over stock. To my surprise each increase in boost resulted in a fairly steady increase in power, indicating plenty of tuning room within the platform.

Red Sport Dyno Results:

Silver Sport Pump Gas Dyno Results:

Silver Sport E85 Dyno Results:

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How to connect and change map/boost level:

Quick directions:
1) Turn car on
2) Follow directions above to connect using either JB4 Mobile or BMS data cable
3) Once connected select map3 in drop down on logging page
4) Enter desired boost target on user adjustment page under boost safety and press save. Valid range is 0-8psi.

Stage1 user adjustment: Added option to adjust pedal to boost mapping using "Default Wastegate Position". Default value is 30, which represents 3.0psi. Below 3.0psi boost mapping is factory, above 3.0psi boost mapping is altered. Higher values may provide smoother but less powerful performance. When looking at your Stage1 logs DME BT represents the boost over stock. As you lower DWP you will hit your "over stock" boost target more quickly in the power band which may feel abrupt. If you raise it you'll hit your "over stock" boost target further up the power band which may feel smoother. If you raise it too high you'll never hit your full "over stock" boost target. During development we found 30 to be the best compromise set point and thus it's the default. It is now adjustable on map3. Probably best to avoid going below 10 or above 50.


There are no firmware updates for Stage1. DO NOT attempt to update firmware!

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.
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