MS3PRO EVO on 4th Gen 3sgte Options

[HardHead93]

I just got my MS3PRO EVO in for my conversion to standalone on my 4th gen 3sgte. I am planning on taking my time with this install to make sure all the wiring is correct and clean looking. To help with the install I grabbed a 5sfe ECU and mounting hardware out of a junkyard car to use as a template for mounting the Megasquirt into the car.









Got relays, distribution blocks, and different color wiring for a clean centralized install.




My goal is to wire the ECU up for as many features as possible and once I get good tune running, start enabling the features. I spent the last few days reading the instruction manual and it has me excited with how much it can do.

This post has been edited by HardHead93: Sep 8, 2017 - 8:15 PM

[HardHead93]

I have gotten my engine settings all dialed in and ready for the tuner. Below are the setting I am using. This should get anyone started with their Gen 4 3sgte with a Megasquirt. I am not providing timing or fuel maps because those may be different per engine. TunerStudio can set up a basic fuel map for you using the stock specs of the motor. The stock specs I used are:
Bore: 86mm (unless you have bored out your motor)
Horsepower: 256 hp @ 6200 rpm
Torque: 239 lb-ft @ 4400 rpm

As far as timing use this calculator to get you started.
http://www.useasydocs.com/theory/spktable.htm

PLEASE! PLEASE! PLEASE! Do not go out driving your car hard with an un-tuned fuel and timing map. You will damage your motor. The idea behind a base map is to get the car to start, allow you to tune your idle, and calibrate sensors. You may be able to do some light driving on the car but THAT IS IT! Take your car to a tuner as soon as you feel you have worked out all the electrical gremlins that may pop up.

Engine and Sequential Settings
Control Algorithm: Speed Density
Squirts per Engine Cycle: 1
Injector Staging: Simultaneous
Engine Stroke: Rotary: Four Stroke
No. Cylinders/Rotors: 4
Number of Injectors: 4
Engine Type: Even Fire
Engine Size (cc): 1998
Injector Size (540)
Main Fuel Outputs: Inj A,B..
Sequential On: Fully Sequential
Angle Specifies: End of squirt
Injector Trim: Off
Firing Order
A:1
B:2
C:3
D:4
For the firing order make sure you have wired the injectors and coils in a 1-3-4-2 order.

Ignition Options/Wheel Decoder
Spark Mode: Toothed wheel
Trigger Angle: (not needed)
Angle Between Main and Return (deg): (not needed)
Oddfire Angle: (not needed)
GM HEI/DIS: Off
Oddfire Phasing: (not needed)
Skip Pulses: 2
Ignition Input Capture: Rising Edge
Spark Output: Going High
Number of Coils: Coil on plug
Spark Hardware In Use: Spark
Cam Input (See tooltip): CMP
Tertiary Tach Input: (not needed)
Flip Polarity On Hi-Res Tach / Cam: (not needed)
Trigger wheel arrangement: Dual wheel with missing tooth
Trigger wheel (teeth): 36
Missing teeth (teeth): 2
Tooth #1 angle: 572.0
Main Wheel speed: Crank wheel
Second trigger active on: Rising Edge