If you can get Sean or BLKMGK to tune your car ....DO SO! It will run for you then.

 

Let the EVO supplement the Supra, not replace it.

 

I have a aem equiped supra and have had it in my car for almost 3 years. I have seen many versions of the software and with each the tuning of the idle and cold starts have gotten better. Now my car pretty much drives better than when it was stock. But it took awhile to get my car to this point.

If you expect to put the box in and start her up and drive away without any tuning your mistaken. My great running map in my car probably wont be great in another car because of alot of variables. Each car will require certain tweaks in order to run right. My main gripe with the aem is that they really dont tell the whole story with this ECU or people ingore it. It really is not set up for the average joe to setup and run. It is very complicated unless you understand EFI. It is setup for someone who knows what the hell they are doing and can make money doing. Point blank. I am not knocking any tuners abilities or prices but it has provided a good income for some.

Can a aem drive like a stock ecu car or better? Yes, but it will cost you in dyno time and a good tuner if you dont know how to do it. So fiqure at least another 1000-1500 on top of the price of a aem unit because you will want a wideband plus tuning and dyno time. You might also want a map sensor too.

Also most people forget to do the drivability aspects of the tune. Have your tuner ride with you as you drive so the decel and accel settings can be worked correctly. I think that is very important even though you have a great dyno tune sometimes the road tune is really not quite there.

Other things that affect a tune is a car that is not running properly or has vac hoses not connected etc.... I have seen this personally and the quick thing to do is to blame the aem when it is something totally oppisite.

The aem forums is a great place to learn. Dont expect much help though from the aem techs. Most help comes from the independent tuners(HPF, Top speed,etc....) and people such as Blkmgk and locals.

 

Based on my limited experience I have to agree. The internal UEGO works very well but there are two drawbacks. One, the lack of gauge functionality. Two, the range of the internal UEGO, especially on the early 1313U units, prior to s/n 39 is limited to 11.06:1. The later units support down to 10.5:1(?).

I've got an early unit set up with the internal UEGO as well as an external Innovative Motorsports XC-1/XD-1 gauge combo. The XC-1 is calibrated in the EMS to allow me to see and log a range of AFRs from about 7.8:1 up to 21.1:1. Not that you really need that extreme range but it's nice to know what's going on when things get richer than 11.0:1. Another interesting aspect of having the two calibrated units being logged together is to see how much in agreement they are (they always are in the important range of 10.5 to 15) but also how much more responsive the XC-1 is to transient changes in AFRs than the UEGO. The XC-1 is based on the same Bosch LSU4.2 sensor but it always reacts more quickly to changes in mixture, both rich and lean. This allows you to see what's going on when you tip into the throttle. The XC-1 will show momentary rich or lean points that the internal UEGO never logs.

To reply to the topic at hand, I'm very happy with my AEM EMS. Hooking up with a good tuner makes a world of difference in the satisfaction of the product. Here in northern Virginia I'm working with Brad Brooks. Brad comes recommended by a couple of the more experienced EMS tuners that have posted in this thread.

 

whats your asking price for the aem

 

Very happy with my EMS. Car is running lots stronger and responsive, and most importantly, no more idling issue like I had before with my SAFC 2. Mad props and big thanks to Dan at Garage Defeat.

 

Yes. Hard To Start ,two Step Rev Do Not Work God At Launch BUT IN MAKES GOOD WHP 488 YES I AM HAPPY COULD BE HAPPYER