I don't see how anyone would want to use an ECU from AEM.

I mean they had such a delayed sync, they basically embarassed and inconvenienced everyone of their customers for years, and then now, so much later they fix it? Why didn't they fix it from day one?

Also David said that the old AEM did not make a car rev well. But ViPEC, PowerFC, Haltech etc do?

It's like all you people interested in AEM again are gluttons for punishment!

 

The interest I'd guess crcain, is the fact they are trying to fix the problems now and judging from the EVO9 I have here are doing a good job. I've been back and forth with them now in probably 50 e-mails and small things I am suggesting are getting implemented and taken care of, which is nice.

The EVO9 is going back on the dyno today, hopefully for the final tune.

There have been an awful lot of records set on the AEM too.

 

Been plenty of records set with distributors and carbs as well! Just kidding. I totally agree with your post, but was making the point some people might be a bit disgruntled with AEM over the years so far.

Dave what's the deal with the ViPEC... are they working on adding the changes/features you think they need to be more competitive?

 

To keep this thread on AEM topic, I will send you a PM crcain.

 

What do you mean it doesn't rev well? You would think that if it has problems making a car "rev" well, you would see major issues when you are at 8000rpm under full load.

 

That is a good question. Based on Dave's remarks that I've heard so far, it appears he thinks the older AEM boxes did not make the car rev sharply, and the ViPEC and new AEM box made the car rev better, and the Haltech is even better.

I think this was a seat of the pants observation from Dave based on all the ECU testing he has been doing.

 

Dave, can you give a little more explanation on this observation? I'm curious to hear. I've been debating on going back to the stock ECU, or upgrading to the Gen 2 box. At the power level I'm at, the stock ECU makes the most sense, but I also dig the versatility of the AEM box.

 

For most people the stock ECU now-a-days makes the most sense actually.

There's no way to describe what crcain is telling you but it is correct. My car with the Haltech on it revs like a motorcycle. It revs like there is no clutch/flywheel/trans bolted to it, if you've ever done that and mostly likely not many of you have. The difference in how the car revs is absolutely night and day.

The new AEM is much improved over the old one in that department.

 

That is just strange as hell. Wouldn't it make sense to you that having that happen during revs would also affect how the car pulls when under load?

 

No black95tt, I don't think that's the case. Once the car is under load it can't possibly rev as quick as a free rev. You'd have to experience it, it's nuts how much faster it revs. Back to back dyno comparisons though do not show improvements if the timing/fuel are kept consistent.

 

I guess I caught them on a bad few years...

I had problems with my Nissan boxes X 2 on
two separate occasions after getting the run around for over a month by AEM
I figured out the problem with help from Nissan Motorsports NOT AEM... and it was something they should have caught during product development!!! Nissan no start do to CAS difference

I had problems with a WRX box Again NO help from AEM got it figured out from a NASIOC member...

Now I am a running guinea pig for the Series 2 box on a 2G DSM

I just found a BRAND NEW problem last night/today cooling fans running non stop and the Internal logs between 8 and 10 degrees off from my gauge
AEM cal has the fan on @ 185/187
But on Series 1 I was running on @ 196/ off @ 190...
Cruising temps logged at 190....192
Now my cruising temps are running 203 to 207 and I have to run the fan on @ 210...

So again I placed a call to tech ....Again I got the "stock answer" It has to be in your wiring or calibration....Nothing should have changed......really WTF why does your wizzard file read "The 6310 and 6320 EMS utilize a different value for the coolant pull-up resistor inside the EMS than other Mitsubishi units."

Then I get a call back ...Oh talked to Engineer the scaling and resolution has changed so it won't read the same and we can't tell you what it should read..

If I wanted to buy a ECU and then FIGURE OUT how to make the damn thing run my car I would have purchased a F*$!ing MEGASQUIRT and saved $1300.00

Like I said lesson learned This is the last AEM EMS I will purchase unless they get there **** together!

I am thinking about trying to trade this one for a Series 1! I already tried buying my old one back!

 

I'll sell you my Series 1, sent me a PM... My tuner Jeff Evans loves the Series 2 and the results are fantastic!

 

So you are admittedly running a "guinea pig" series 2 box and are complaining about a bug? Doesn't that seem a little contradictory when you read it back to yourself?

 

I want say again thanks to Dave using my car for this test. I hope something good comes of all this for AEM and everyone else

Cain I am interested in Haltech, but it can wait for the time being.

 

Don't thank me Jeff, not until it's done