Originally Posted by
Vadim 
Let me dig a little deeper into how Nistune ECU's and how Calum ECU's work. You have a "bin" file, which is essentially a dump of the whole ecu in one small file.
Then you have the address files, all an address file does is tell the tuning software where a certain setting is. Someone had to sit there and reverse engineer the BIN file to find where to point the address file (since nissan wasn't nice enough to tell us where everything is).
At this date and time, no one is really sitting there and trying to figure out where each setting is at, thus Calum ECU's and Nistune ecu's are forever stuck with what they have. Nistune did create calculators to help automate the process of changing values, but at the end of the day it's still a glorified calculator.
Now when Dave came along and brought us TunerCode, he actually sat there, read the code, tweaked the code, and noted down all of the address references. So TunerCode is basically exactly what Nissan would have when tuning the car, plus more (since Dave added cool features like spark cut rev limiter, injector size adjustment, etc.).
Nistune tuning is as limited as Calum tuning without TunerCode. Not trying to lecture you SR20GTi-R, just trying to explain the backend of the two ecu's for the people that look through this thread. Because I've seen a lot of people think that Nistune ECU's are superior to Calum's. When in reality the only difference is the daughterboard that they use. Now Nistune software on the other hand, is great, but all it is, is just built in calculators to simplify the ECU tuning. You can use a Calum ECU with Nistune software any day or night.
AEM's on the other hand are well documented, since they were always designed to be user tuned. The only reason you can get more power out of a standalone, is simply because every single feature is documented and tweakable. Now days with TunerCode you have the same documentation and most of the features, with oncoming NEMU boards, we are looking at new features similar to any standalone out there.
The max out might be due to the ECU that you use. Unless you adjust your maps for that much boost, you have to retard your base timing, by retarding your base timing you are loosing power across board just to not knock at that high of boost. Now if you are also using a piggy back, then it might be just fine 
.
There is just so much in here that is not correct.
I really one day would like to sit down and really educate this forum on daughterboards, how they work and the software behind them.
The board has nothing to do with how the car operates. Calum, Nistune, Tomei, Moates, and PLMS have been making boards for years. PLMS has been before Calum. You can take any bin and burn/use it in any board.
As of right now Nistune is the best option for tuning software availible for our ECU's. No one can say otherwise. Nismotronic is not availible yet so no comparison can be made. Without going into a long discussion, tuner code is just the firmware behind the ecu, it is not a GUI (graphical user interface). TunerPro is used inline to interpret Daves address file.
I can go on and explain and show Nistunes map tracing and logging abilities but I am not a promoter for them. Spend some time on the Nistune forum and see how far it has come. You will see why 90% of factory ecu Nissan's overseas use it. Don't knock something and glorify another without knowing the information behind it.
Originally Posted by
Coheed I think 500whp is definitely possible, and I don't think knock is much of an issue with a timing map designed for 91 pump, while running high boost and 116 octane.
If I can get exhaust backpressure at a 1:1 ratio with boost pressure, the engine will make 500whp rather easily.
Talking with Andreas, he knows of several people making over 500whp with the same tune I have, just with larger turbos.
It's just wrong. I wish everyone was able to see what goes on when a car actually gets tune, map trace and see what the JWT is actually doing.
How on gods earth is JWT going to know exactly where your setup spools for example to dial in the timing map? What if your MAF is dirty or reads slightly different and you end up slightly lower on the load scales? There is just so much I could go on explaining but I feel it's pointless. This forum has tunnel vision and will forever be this way.
Setzer warned me about this years ago and I still haven't learned. This is why great tuners/fabricators have moved on to other platforms or just hide behind the bushes.
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