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After playing with a Nis-Tune unit for a customer I have these main reservations still...
1. The unit will not allow Real Time tuning as is
2. The unit will not allow you to actually tune the map if you install the software more than 3 times. That means if you buy this product and you have a systems crash and you own more than three computers which many now do you are totally SOL.
3. The unit does not allow you to adjust while the car is running. You have to Image the map and then "burn" it to the eprom, this is not a standalone unit. This is the definition of a reprogrammable chip just as I thought.
4. The layout of and the ergonomics of the maps and adjustments are very generic or confusing and not very clear compared to FC Data logit for Power FC or Haltech Software. There is much more room for improvement.
Some of the descriptions and adjustments do not even use the standard Vocabulary that most EFI universities or engineering schools refer to in some cases.
That being said It is still a cool unit. However once it is all said and done the cost of the unit is almost as much as a Power FC, which you CAN tune in read time using fc logit or the provided software, you can map trace IN REAL TIME and you do not need to use an outside EMULATOR or additional ghost unit to tune the car in real time.
REAL TIME TUNING: Tuning while the engine in running and watching the power, EGT, knock and AFR in REAL TIME and adjusting a given cell in the MAP while the car is running, under power on the dyno, rolling to see IMMEDIATE results and to adjust accordingly over and over in steady state to fine tune every single cell
Most believe real time tuning is simply tuning the car while the engine is running...NOT SO
That is not true real time function adjustment...Haltech is the one who pioneered this and for Nissan the PFC is a more affordable way to do this with the FC Datalogit because you can adjust a cell and hit "write all" over and over while running and on the dyno for the same effect...
If I am missing something I apologize but it doesnt seem like this is possible for just the cost of the Regular old Nistune setup!
Unless you have dyno tuned cars you would not really understand why this is soo important to truly get the most out of the unit.
If someone could address the emulator and software license issue I still believe this package is overpriced by about 100-150 dollars just purely on the fact you have to image the rom and are not actually re-programming the actual computer.
Before anyone goes into a fit, these are VERY VALID concerns when one is evaluating price and the true capabilty of the unit they are buying. The consult and logging abilities of Nistune are great but when you are buying a REPROGRAMMABLE Engine Management unit the number one focus should be how does this product meet my needs to get the most out of my engine during the actual process of TUNING. This was much less impressive than I was expecting it to be and I don't really see how it is a "better deal" when you can get a used power fc in many cases for a couple hundred dollars less than this
Please answer these questions
1. explain exactly how to tune the unit in Real Time without using an Emulator or external side ecu. As in real time I am rolling on the Dyno Dynamics watching tractive effort and I need to raise or lower timing value in real time to see tractive effort go up or down so I can tune in steady state...
2. explain how to handle the software issue because nistune still has not allowed the consumer software to be free and fully downloadable.
3. Also explain the refresh rate of the "Target AFR" function...target AFR mapping is notorious even on highly advanced quick refresh units like Haltech to be AWEFUL. This is not "tuning" and typically the ecu will over correct or undercorrect and this causes sporadic high temperature period in the engine leading eventually to valve sealing seating issues, hot spots in the combustion chamber and cracked exhaust manifolds (very common)...I would not suggest using this function on the Nis-Tune if you have one. You should edit raw values but you will need to do this IN REAL TIME to really get each cell right....
I am happy to answer and questions of members regarding my experience with the unit and my reservations.
Again I do not sell any hardware and do not have an personal relationships with any company that sells hardware or units. I am purely a weekend dyno tuner with a very specific specialty (Nissan and BMW EFI).
Thanks
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