[Lapkritis]

Originally Posted by K Sykes

.[*]If you aren’t confident in your skills in programming, wiring, circuit design and tuning, start with the Tbitz kit or at least just do fuel first. There are too many variables with fuel and ignition, to be able to problem solve both at the same time. Those problems can be your install, software settings, firmware and mechanical issues. Tony’s kit takes a bunch of those out as a starting point. He also provides a base tune that will let you start and run as well as software logic that allows the MS to emulate the fuel pump logic that Porsche uses. It’s opposite of basically ever other car manufacturer.[*]There are two worlds in the MS community – the B&G folks, who designed the original MS and have firmware, the manual and a forum that provides support. This is the firmware Tony uses and for your first install, it’s the path of least resistance if you include his base tune. You can get your car running, and play with and improve the tune on the B&G firmware. The other camp is the MSExtra folks. They have taken the firmware to a new level and I made that switch to add ignition. The downside of this move is that you loose the TBitz fuel pump logic and need to rewire your fuel pump relay to work the way that MS expects it to.
the relay to turn on.[/LIST]

Great notes. I've been using MSExtra since 2007 and done a few different installs. Even at day 1 I wouldn't consider the original B&G code ... the extra has so much more for nearly $0 and a little more research time.

The fuel pump relay for ground switching trigger or hot trigger is a bit tricky for some. I've used both types. There are German relay solutions out there from other manufacturers.