I'll have to respectfully disagree. Nothing runs the honda engine as well as the honda ecu, which is the approach that hondata takes. And a custom ecu chip, is running the car exactly like it did from the factory.

I've heard of quite a few of the EMS boxes dieing, I've heard the same of hondata blue-boxes.

I think that all three of these options are tools, and can be applied to an appropriate situation.

-PHiZ

 

Honda ECUs have proportionally the same fatality rate as the EMS. There is just fewer EMSs in use, so you hear of them a bit more. Either way, killing a Honda ECU or the EMS is usually a result of some electrical mishap in installation or other activity.

The EMS was designed to interface with all Honda sensors, injectors, etc. It also gives more complete error diagnostics than a Honda ECU ever dreamed of.

The EMS can also take in sensor readings from multiple sources and have that info be used for correction maps. Most chipped ECUs have 3-D maps, but with the EMS, you can have up to 6 dimensions of correction for altitude, temperature, humidity, throttle position, boost pressure, EGT readings, wide band O2. Get your maps right, and it's set to make max power every day that the engine setup is the same.

The EMS is more expensive, sure. But in the long run, if you have someone knowledgable setting up your correction maps, going faster is just a matter of turning up the boost, instead of turning up the boost, going to the dyno, spending another 2 hours making pulls, burning another chip and then being on your way until the next time you want to do something different.

It's the same with any high-power build, you can save money, make lots of power, and be reliable, but you can only choose 2 of those 3 options.

 

Again, I disagree with just about everything in this post. Look at your proportion argument again, it doesn't make any sense numerically. There are fewer EMS' than OEM ECUs, so when an EMS goes bad, you're more likely to hear it? I've heard of maybe 10 OEM ecus going bad out of the millions in use, and maybe 3 or 4 EMS' going bad, out of maybe a thousand in use. I'm sure AEM has made inroads against their quality control problem, but it's something to be considered.

The EMS interfaces with all the stock sensors, well, that's right, they're stock sensor, so the ECU surely has the cabapibilty to be put to use the same way...

close-loop mode integrates all that sensor input, and makes corrections. You have MAP/IAT/PA sensor adjustments being constantly performed.

Yep, and pretty much all of those features are overkill on your typical mild turbo setup honda.

Like I said, these are just tools waiting to be put into use per applications needs.

And I'm sorry, but I disagree with that in principle, cost and reliability can be supplimented by skill.
-PHiZ

 

First off, the vast majority of ECU failures is not in the enthusiast market. The EMS, on the other hand, is in nothing but the enthusiast market.

As for the EMS being overkill on a mildly boosted Honda, boost is addictive, plain and simple. Anyone dropping the money and time to boost doesn't stay satisfied with a mild boost level for very long. If I had just a dollar for every time someone has come to me and said "I just wanted to be able to run 8psi daily, but now I want more", I would be quite wealthy. Spending money on anything less than the most you could ever possibly use is stupid. People that modify their car, and get a V-AFC, then decide that's not enough and get a chipped ECU or a Hondata, and then decide to take it to the last level and get a true stand-alone like the EMS, spend way more than they ever needed to. If your intention is to have a growing project [which most people do], then it makes absolutely no sense to spend "less money" and get only what you need for a certain stage of your project, because it just keeps taking "less money" to get to that next level until you get to the point where it would have been cheaper just to spend more money up front to get the best, be done with it, and have $400 more in your pocket.

I've built engines since I was 10, so I don't pay for assembly costs or anything like that, and I'm here to tell you that no amount of "skill" is going to let you cut corners on cost [both in cash and in time], and give you a reliable engine that makes lots of power. It doesn't happen.

 

Anyway to get back to helping the original poster (which is what this thread is about)...

You will have a plenty reliable setup and it will be much simpler using your V-AFC to run higher flow rate injectors, an upgraded fuel pump, and no more MAP bypass or FMU. You'll need to buy the injectors and fuel pump to really do anything productive with the Hondata anyways and like I already said your V-AFC is more than capable of getting everything dialed in on a dyno as long as someone that knows what they're doing is in charge of things.

PHiZ, if you would like to endlessly debate whatever it is that's stewing up there in your head about ECUs then start your own thread. Don't hijack other ones like you constantly manage to do.

 

My first two resonses were helpful, and responded directly to the question at hand. I then presented my opinion that for his setup a 1000 dollars of EMS equipment may not be appropriate/neccesary.

Your comments have nothing to do with my advice, you don't like ME, it's so beyond laughable when you try and scold me, and make yourself look like a ****ing chump.

-PHiZ

 

I am the moderator of this forum. You derailed a thread, I asked you to stop. That is all. I am now splitting the posts actually pertaining to the thread into a new one so that it may continue. The remaining posts will be locked. That is all. If you have a problem with how this has been handled then contact one of the administrators.