Hi all,

I've been looking over some of the ECU threads in the digest and I'd just like to get a read based on the most current information available. If you find a thread that I have missed that addresses my specific concerns, I would be grateful for a pointer.

I am considering an aftermarket EMS for my 94 FD. I have researched many of the players, but I lack some real-world knowledge with rotary applications. Here are the control units I have checked out:

Tier 1:

1) Pectel T6/T10
2) MoTeC M48/M800
3) EFI 1.9/2.1
4) Haltech E11

Tier 2:

1) DTA P8Pro
2) Apex'i Power FC
3) AEM EMS
4) Electromotive TEC3

Here are my requirements, roughly in order of importance:

1) can use factory harness for almost all input/output (I am willing to build my own harness adapter and add auxilary sensors)
2) can provide a 3D boost-corrected map (so that an EBC can be used safely and effectively)
3) it well-suited to rotor control (with variable timing split)
4) does not disable any of the factory functions that rely on the CPU (or as few as possible--I realize this is a bit unrealistic)
5) is altitude-correcting
6) can store multiple maps, preferably selectable from the cockpit
7) has usable datalogging
8) can be run in closed loop O2 on a per-rotor basis (multiple wideband Lambda)
9) has the potential for more closed-loop functions (trac ctrl, launch ctrl, anti-lag)
10) has output in "real" units (not voltages or some other value that must be translated on the fly)

I realize this is quite a load of information, and that any of the tier 1 controllers is probably capable of meeting my needs. I am more or less looking to hear your gut reaction as to which direction will be the path of least resistance for me. I have access to tuners for many of these systems, although the UK high-end stuff will be a bit problematic in that regard.

I am particularly interested in anyone who has had firsthand experience with the tier 1 stuff, especially Pectel, EFI, and MoTeC.

Thanks in advance for any help you can offer me,

-ch

 

And I should have mentioned:

My usage for the car will be a mixture of track days and autocross, but it must also be able to run reliably on the street as well. You track-only nuts may now look down on me.

Thus, the system should perform well idling under high temps and with various accessories on/off.

Thanks again,

-ch

 

Halteck

 

I think by just the closed loop option eliminates most of them. I assume you meant sort of a self tuning feature since you mentioned wide band.

For what you are asking, it sounds like the Power FC meets most of what you require...

Anthony

 

AEM

remove your stock computer

Plug in the AEM Brain
set auto tune

and go.....................................