Yup, you are right; there's no proof right now, other that GM, Honda, DSM's, Subaru, Siemens, etc, ECU's have all been cracked and people are able to fine-tune them to their exact need. Just google a little, and you'll find info on those. But indeed, it hasn't been seen in the Hyundai community in an effective way.

There's something you do not understand obviously, here. Here's what your stage3 chip does:



It is FAR from what I'm talking about. This chip doesn't, in an extensive way, modify fuel or ignition. It doesn't account for bigger injectors. I have no doubt that you still have to use a piggy-back when you do any slight modification; it isn't meant to handle such cases.

What I'm talking about is a chip that would be MEANT to drive bigger injectors, MEANT to decrease timing as load (boost) increase, MEANT to, if needed, use a bigger MAF. I'm not talking about an all-purpose yet undoubtly useless chip.

How about having a little piece of software which would allow you to build your own fuel and ignition map? How about a chip provider that would give you, say, 3 "chips" (with different programs, obviously) for the same price as the other chipping companies, allowing you to change your chip when (and if) your needs changes (ie, going turbo from near stock).



This one makes me laugh... I have found the fuel and ignition tables in the ECU that basically says "you'll dump THAT quantity of fuel or timing at THAT rpm and maf reading". How can you have more "fine" control to the fuel and timing than that? :roll: Because of that, it is possible to drive ANY size of injectors.

The Korean crowd uses stand-alones either because they're used to them, which is fine, or because they haven't been able to understand how to modify the stock ECU, which is more likely; I spent an ENORMOUS amount of time trying to figure it out myself.

Anyway... you seen my turbo setup? That setup will soon be exclusively handled by the stock ECU (currently running with the SAFC, butt tuned). I've got 470cc injectors. We'll see then, I guess wink1.gif

 

actually all the DSM'ers.. at least the ones running fast times use the VPC or AEM EMS.... they dont "chip" their ECU's. And those are different types of ECU's not hyundai's. Im not a familiar with them as DSM's so I cant argue what the main stream tuners of those brands use, except for hondas which use Honadata. Also remember some ECU's are more flexible than others and from what I've read on HP and HA hyundai ECU's are pretty stubborn. Like I said show me some results. If you pull some impressive numbers I want to drive to canada and check the car out myself. I'd like to see schematics or whatever diagrams you are looking at to figure this out. But so far all I've heard was talk with no proof to back it up

Like I said the only person I know of with a chipped ECU is leadfoot and he has had nothing but problems with it. The only reason Im not believing you is because what I have learned doesnt click with you saying a chipped ECU is just as good as a standalone when I havent seen any results. Yet standalones have been proven. I'll eat my words if you can prove results otherwise.

 

pleaase dont turn this into an argument, im learning stuff.

i dont think its about fooling the ecu, i think agarwal is talking about completely re-writing the thing using some kind of program.

this is why people use stand alones, because not everyone knows that much about re-writing codes in some kind of weird korean code language.

 

you can't rewire the ECU. If the ECU has an E-PROM then the chip can be reprogramed or substituted with another When I drop my ECU to install the my S-AFC I'll open it up and check it out. At any rate, I dont think substituting this chip (if it has one) will provied the flexibility and ease of use he is claiming. Tibby01 I have plenty of experience in how electronics work. This is just not making sense to me. If it was so easy why doesn't everyone do this? Im sure you've read about leadfoot's experience with his "rechip" of his ECU. Look how its turned out. Then you see the success that the Axxis tib has had with a standalone. And I see the success the AEM EMS has had in the DSM community. But with my knowledge of car electronic systems and electronics principles I do not think this can be as good as he claims it to be.

 

Fact is a LOT of people is actually doing this wink1.gif You not being aware of it doesn't it make unpopular...

You know of the DSM-Link, right? You MUST know about it if you're into DSM's. Some people run in the 9s with it, and a LOT of people run in the 10s with it.

I suggest you guys to take a look at those links to see what's possible with a stock reprogrammed ECU:

Stock to "stand alone":
- DSM-Link
- For Subaru, VERY cool
- The famous Hondata

The information for most older GM ECU are also "open-source", meaning that if you search a little, you can actually modify your stock chip yourself for free. There's also others available. This is certainly not an extensive list, just what I could remember on the top of my head.

Performance chips:
- BMW chips by Jim Conforti, *THE* BMW guy for reprogramming ECUs. Those numbers are verified.
- Chips for Corvettes, Impala, Firebird, etc. Recently used on a 750hp Impala, so I think it works good wink1.gif
- Order sheet for the Mustang Diablo sheet, showing what can be customized. (Hint hint, you can choose the injectors size wink1.gif Note the "Forced Induction" and "Boost" fields too)

There's a LOT of chips sellers. Some of them are good, some of them are bad. Again, this is not an extensive list.

It's funny how philosophies changes between different car communities; in the BMW, Audi and Porsche world, people swears only by chip tuning. All the "true" setups are done this way. In our community, for example, people only swears by piggybacks or, when they have enough funds, standalones wink1.gif

The reason for this is pretty simple; there's NO good chips for our cars, and I'm certainly not even thinking about something that would allow you to run a turbo or a supercharger. But it certainly doesn't mean that it can't be done. I hope I made that clear wink1.gif

Dweet, you're right that what I'm saying about me "cracking" the stock RD ECU is "vaporware". However, when you say this:



...you're clearly saying that, in fact, you know NOTHING of what I'm talking about wink1.gif I don't want to be harsh, but that's just the way I see it. People have done what I'm talking about since the early 90s, so it's not like it's *that* new.

I'm not going to argue anymore on if it can be done or not; the fact is that it CAN be done, that's 100% certain. The question is, "Can Agarwal do this on the RD ECU, allowing to tune the stock ECU to one's needs, n/a or FI?" We'll have to wait a little to answer that question, since I have to try my "chip" first. Maybe I'll be sucessful, maybe not (altough I'm pretty confident about this, but what's confidence without proofs? wink1.gif).

Another question would be, "Are people interested in such chips, in the Hyundai community?"

We'll see wink1.gif

 

there is mad science goin on and im not goin to get into this argument guys, but if you can hack stock ecu and make it work for FI engines for $500 then I will be one of your 1st clients!

 

I'll certainly keep you guys tuned on my progress.

 

I'll keep that quote some place warm, to show it back to you if I'm sucessful. I'll be happy to receive you at home, no kidding wink1.gif

 

agarwal please do not double post, use edit button!

 

So then you say you are just reflash'ing an E-Prom. If you are using some type of software. I know how this works, I've been working on electronics for 9 years now.

However if the only thing you are doing is changing the timing people are better off getting an emanage. And here is why. You can change A/F on the fly, you can use an additonal MAP sensor so you can clamp the MAF and run the additional MAP to compensate for when the MAF is no longer effective after 300whp of boost. Also you can change the ignition timing with it. And you can add an additional injector control harness for about the same price of what you claim reflashing the E-Prom.

As far as making chips for other vehicle's ECU's thats comparing apples to oranges. Especially when you are talking V8's vs I4's

A stock DSM ECU can get you 700 HP, and mine has some sort of "chip" in it so it could be fair to say a chipped DSM ECU can do 700whp. See what Im saying. But like I said, stand alone's are proven and if I got one I wouldn't have to worry about install costs because I'd do it myself. If I can hybrid a Hyundai Wiring harness and a DSM wiring harness to make them work together I think I can handle a haltech, actually I know I can because I've seen their diagrams.

Im not trying to knock your efforts Im just saying our ECU's are stubborn as seen what the powerchip has done to it. I have heard nothing but horror stories with it. But if you can do what you say you can I'll be all over it.

Here is the most important thing though. Without proof your posts are pointless. I could say I found a way to rewire one of those electric superchargers to give an addition 200hp. And then go onto saying i could do it by upgrading its motor to handle more current and then finding a way to wire it so it ran more current in the motor. And then argue because I know when you add more current to the motor is makes the fan spin more thus making more cfm. I could do it and make it sound convincing to people who know little about electronics.


as will I