Why Try

Don't worry about having to use a drive by wire throttlebody stock ls2 ecm. This solves it all for you conversion / swap guys.

MSD Mefi 4b System for an ls2 MSD # 240021. For an LS2 58x 6.0L/LS7 7.0L w/Bosch Style Inj


This is a fully programmable efi system on the same level as Big Stuff # and Accel Gen 7. It has full wideband integration, and even direct hookups for Racepak dashes.

Control table has tabs to click, main fuel tables from 0 -1,200 RPM, 1,200 -3,600 RPM, 3,600-6,000 RPM, and 6,000 - 9,000 RPM. Additional Main Fuel tabs control Boost Fuel, Compensation for temperature control, Intake Air temperature control, and Altitude compensation control.

Spark Control tables are adjustable in the same RPM ranges as the Main Fuel tables. Another feature is the Knock tab to enable or disable the knock sensor, and change the knock attack and decay rates to Fast, Medium, and Slow, or completely disable the knock functions.

Idle Speed Control tables are based on engine temperature, minimum throttle position and a calibration function that allows the ECU to determine when the idle spark stabilization, IAC and stall saver functions occur. Basic idle functions are set up from the camshaft profile; either stock or an AS&M camshaft can be selected.

Setup tables let you select the type of ignition system you are running. GM HEI, Coil Near Plug ignition system. Sensor selections include 1-BAR, 2-BAR manifold absolute pressure (MAP), and intake air temperature (IAT). Fuel pump prime time allows the time in seconds that the fuel pump runs when the ignition is turned on. Rev Limit is based on engine temperature and is adjustable from -40 degrees F through 284 degrees F.

Chart Function can data log any engine function controlled by the ECU, including engine speed, boost pressure, spark timing, knock and injector pulse width. You select and record the functions you want to monitor.


Links-
MSD’s Product Description : http://www.msdfuelinjection.com/mefi4.html
Overall Features here (UMI manufactures this for MSD) : http://www.umiracing.com/gallery/Images/Catalog.pdf
Ingenius Tuning Software : http://msdfuelinjection.com/software-ingenius.html


Features-
Closed loop idle/air speed control functionality
Uses GM MAP, TPS, coolant sensors
Speed-density algorithms allow for easy tuning
Drives eight high impedance injectors
Advanced transient fueling algorithms
Seamless decel fuel cut-off
Boost compensated fueling
Spark Dwell control
Compatible with 1 and 2 BAR MAP sensors
Fuel Pump and Dual Fan Relays
Complete Fuse Block


This will include:
Main Mefi4b unit
In-Genius tuning software with USB key
Tuning cable
Complete LS2 wiring harness with injectors, ignition, and cam/crank sensor sub harnesses

I purchased this for 1895$ from Summit just a month ago. Its brand new, never installed.


Looking for 1700$ shipped!!!







New in the box RC Engineering 75 lb. (at 43.5 psi) injectors. That translated to 88lb injectors at 58 psi. THey come with the flow sheet direct from RC Eng. These are some of the largest high impedance injectors available. These retail for 98.75$ EACH (http://www.rceng.com/Saturated-Injec...750-P63C6.aspx).


Looking for 575$ for the set






Brand new Magnafuel MP-4303 750 Series Efi pump. This pump is rated at 2000+hp and over 120 psi. Its a beast of a pump! Never seen fuel. Retails for 520$.

Looking to get 460$ for it by itself or 560 with both the inlet and outlet filters included (10 micron and 100 micron)