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 got my car re-tuned with the Sweet 16 CT15 turbo upgrade from ATS. I decided to take it to a different tuner to get a different feel of tuning styles. This tuner cleaned up my 91 octane map then tuned the E85. I am really happy with the results.
Dyno Numbers

The top number is my 91 octane and the bottom was the final pull on e85.
91 Octane gave me: 305.3 hp and 286.2 lb-ft torque on 15 psi of boost
e85 gave me: 340.0 hp and 311 lb-ft torque on 16 psi of boost

Those are some awesome numbers! I am very happy with the results. I also asked the tuner why the car felt a little sluggish off the line. He took a look at my tune and determined that the timing was a low at the lower RPM range. He bumped it up and it fixed the issue.
Here is my original timing map (91 octane on the left and e85 on the right):
1st Timing Map

Here is my new timing map:
2nd Timing Map

If you notice, the timing on the new tune bumps up really quick at 1500 rpms to get the car off its a**. That was all it needed. The car is now a bigger monster than it was before. I am pretty much at the limit of the S54 transmission and even though the gen 4 3sgte can do 400 hp that is like playing with fire. I will stick with the numbers I have right now. Just to be clear there was nothing wrong with my previous tune. The 1st tuner I used just played it safe. The car seemed to pull better on the stock ECU with 91 octane on the first tune and the dyno numbers reflected. I will still keep a close eye on things for the next week or 2 just to make sure there is not weirdness in the tune.

This post has been edited by HardHead93: Apr 25, 2018 - 5:03 AM