Just got finished talking to Jordan (the MS guy) over AIM and decided on a setup. I'll be ordering up all the parts myself. Once it all arrives and I'm ready to install, Jordan will then be helping me with instructions to wire this up to the car as he's done quite a few MS setups on SC300's, and is currently running MS3 on his SC300. It's hard to explain, but this will be used in parallel (tandem) with the stock ECU. Don't confuse that with being a piggyback however. What Jordan's method does is leaves the small basic things for the stock ECU to retain control of. Things such as A/C and other accessory functions, even some of the idle stuff will still be ECU controlled I believe. However all the engine vital controls such as fuel control, ignition timing, things such as no lift to shift and what not, that will all be fully controlled by the Megasquirt with no stock ECU interference. I honestly like this idea as it lets the stock ECU still maintain control of the basic stuff that its good at controlling, and leaves the Megasquirt in full control over everything else.
Here's a rundown of the parts I'll be looking at getting:
MS3 ECU w/ MS3X expansion fully assembled: $640 (could be had cheaper if you want to do the assembly yourself)
http://www.diyautotune.com/catalog/m...led-p-435.html
4-bar MAP sensor upgrade: $65
http://www.diyautotune.com/catalog/m...ion-p-117.html
Megasquirt Wiring Pigtail $48
http://www.diyautotune.com/catalog/1...ess-p-114.html
MS3x Expansion Board Wiring Pigtail: $55
http://www.diyautotune.com/catalog/1...ess-p-454.html
Then I'll be running the free tuning software application called Tuner Studio Lite. If I later decide to, I may upgrade to the registered version for $35 to unlock some of the advanced features like their "auto tune" feature and what not. Here's a little peak at what the software is like:
http://www.efianalytics.com/TunerStudio/