We're going through the same thought process on the GS-R, Tim. The car currently runs the factory ECU with a socketed chip, and Jeremy has been using a Moates burner and software to tune it.

However, we're going to need a real-time solution, so that we can make changes on the fly, especially on the dyno. That means we either add a ROMulator, such as "Ostrich", which emulates the ROM info so we can dynamically change it; or we go to an existing real-time solution such as the HonData S300.

You could always develop/buy a standalone solution. AEM (http://www.aempower.com/) already offers a Plug n' Play EMS system, but be prepared to bend over. I have given casual thought to assisting DIYAutoTune in Georgia (http://www.diyautotune.com/) in developing a PnP MegaSquirt system. Speaking of bending over, of course there's MoTec...

Honestly, though, I'm fairly convinced that I.T. cars work perfectly fine with either modified stock ECUs (e.g., HonData) or simple aftermarket systems (e.g., MegaSquirt). We don't need all the features that most of the high-end systems offer, and frankly very few of us are capable - or even motivated enough - to use those features.

We're going to likely start with the Ostrich ROMulator addition to the chipped factory ECU, or *maybe* go with the HonData S300. At the same time I'm going to investigate the idea of a MegaDquirt system with Jerry at DIY.

Unless someone else is writing the checks, there's just no way I'll bother with AEM or MoTec.

GA
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Greg - there is no benefit to going to MegaSquirt. The Hondata or Crome has everything that you need to tune with and more. Don't waste your time. The honda market has already been defined and has a ton of options, many are free!

Tim - I can explain Honda ECU's in much more detail if you would like just give me a ring.