Greddy E-manage

[mbock76]

A greddy E-manage how would it effect a car with an automatic transmission...

is it worth it?

[joe603]

Any electronic "tuning" for our cars will yield small benefits. I'm sure you could adjust the shift points and firmness for autos. These management devices are better suited for FI applications.

[tollboothwilley]

Sorry, but I think Joe has a very limited scope on what the Emanage does.

I just got my car tuned with the Greddy eManage Blue. I have a 5AT as well. Tuning of course is more difficult since you can't see what is going on with the torque converter until its fully locked up.

If you have a wideband o2 sensor (2005+) then you can even do the data logging and tuning yourself.

The eManage doesn't do anything for shift points. The Emanage Ultimate will give you a few more functions over the Emanage blue. Emanage blue can be upgraded to the Ultimate with just a few additional wires.

You will be able to adjust timing (+/-) and AF ratios (up to 20%)

You can pick up a emanage blue/ultimate fairly cheap. For FI, you might consider going against the Emanage though, as it is a piggyback and you can't adjust the open loop, only closed loop.

[joe603]

Still, not worth the $$ until you have a decent power adder. The tuning from the factory is actually fairly aggressive. (this is why mods for our cars don't add up to much extra HP)

[mbock76]

cool Thanks any more advice would be cool

[Sentientbydesign]

cool Thanks any more advice would be cool

To reitterate what Joe and TBW said, our cars are already relatively agressive on the tuning side. The real benefits will come when serious modifications are made (intake, plenum spacer, cat-back exhaust, headers, HFCs, Cams...etc).

TBW went with the emanage out of necessity more so than desire as he has a different ECU than the rest of us. I would personally, suggest you look to tune your car after serious modifications and to look into the Osiris system by UpRev. You can get up to 5 custom maps installed on your G (I want, performance, fuel economy, valet, theft maps done when I get one).

These maps can be switched easily and a tune can be had for under $700.

[tollboothwilley]

Plenum spacer, HFC, and cat-back exhaust would be great with a tune.

I have more mods than that, but picked up great midrange power for NA tune.

I would def. go with the Osiris tune if its available though. Like SBD said, I went with a piggy-back out of necessity.

[C-Kwik]

The Emanage Ultimate will give you a few more functions over the Emanage blue. Emanage blue can be upgraded to the Ultimate with just a few additional wires.

The Emanage Blue and Ultimate have fundamental differences. The biggest being that the Ultimate can drive the injectors 100% independently of the ECU. The Blue controls the injectors simply by altering the mass airflow signal. It can however add more injector pulsewidth by providing its own ground. But it can't shorten the pusewidth other than by telling the ECU that less air is entering the engine than it is actually getting.

The Emanage Ultimate can be rigged to completely bypass the ECU's injector signals. By providing its own injector drivers, it can independently alter fuel curves without altering the MAF signal. So the ECU's ignition and VTC maps remain unaltered. The tendency for any ECU map is that under low airflow conditions with high throttle (relative to RPM), timing gets advanced. So any system that uses the MAF to trim fuel could end up with more timing advance than is ideal. Especially in situations where larger injectors are used. The Ultimate eliminates this issue altogether.

Unless there have been some major changes in the Emanage Blue since I had one, you can not upgrade to the Ultimate other than to buy an Ultimate. If that were the case though, why would they still offer 2 different products?

You can pick up a emanage blue/ultimate fairly cheap. For FI, you might consider going against the Emanage though, as it is a piggyback and you can't adjust the open loop, only closed loop.

The Blue does fight the ECU in closed loop operation. In open loop, it will go by its own maps relative to the airflow the Emanage Blue tells the ECU its receiving.

This is the part of the Ultimate that I don't know for certain about. If the Ultimate accepts the signal from the O2 sensor, then I would imagine, it can be programmed for open or closed loop operation. Otherwise, since it is independent of the ECU, it would essentially run open loop all the time. In such a case, I would imagine a MIL light may come on if you get the A/F ratios too far off from the factory target.

Either way, the fundamental differences make the products very different in how you can use them. The Ultimate being much more flexible.