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Thread: NEMU RealTime Boards

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Posts: 121-130 of 176
2011-10-01 13:50:58
#121
Originally Posted by happyharrysco1
what is the problem with supporting these ecu's? hardware incompatability? or software? as their not obd2, I really want support for it and the jap daughterboard that tunes and runs on the knock maps isn't the best solution imo :/

... --- ...


Each ECU has to be completely reverse engineered to assure hardware AND software compatibility. For example, even though the wastegate solenoid is connected to pin 111 on both the S13 SR20DET and GTiR SR20DET ECUs, that output is controlled internally by different I/O ports. There is a lot more to it than just figuring out where tables are in the firmware. You must also understand what values are used to index into the tables, how big the tables are, how the values in the tables are used, etc. This takes a lot of time and I have managed to complete 15 of them.

Originally Posted by Evlnxr
There are so many items in the bin file with it being so large, we have only scratched the surface and found the fuel/ig maps, and basic tuning info such as vvl, maf k value etc.


There are many items in a bin file, however the "we have only scratched the surface.." statement is untrue. With TunerCode, I have identified and documented every tunable constant, table, and flag in the bin, including logging of all pertinent calculated values.

Originally Posted by Cozzm0_AU
Tunercode doesn't have primary and knock maps, it has one map only and no knock control, so there's really not a big change there.


TunerCode includes knock control AND knock count and timing retard data logging. The new version for the NEMU board includes the ability to switch maps based on knock detection, which is well beyond OEM capability.

Originally Posted by Cozzm0_AU
As Evlnxr stated, there are vast physical hardware changes, that while with a bit of time spent on it a solution could be found. One issue is that its a far far far smaller market that offers very little extra/unique functionality compared with a DE ECU with tunercode/NEMU realtime board.


Cozzm0_AU is in no way connected with TunerCode/NEMU development and is hardly in a position to make this statement.

Originally Posted by Cozzm0_AU
Bad fuel isn't an issue here, but at the same time, if your tune is that close to the edge of knock, i wouldn't be relying on the OEM knock control system as it isn't fool proof (from both false positives and false negatives) and isn't really used at high throttle levels and high rpm as there is just far too much mechanical noise to distinguish knock.

As we all know, knock at high load will be very dangerous and likely do damage anyways, which would usually be outside of the knock flagged area.


As we all know, there are many examples of faulty advice given by people who do not understand the operation of the OEM ECU.

Dave
2011-10-01 21:24:44
#122
Originally Posted by dfddfd2

TunerCode includes knock control AND knock count and timing retard data logging. The new version for the NEMU board includes the ability to switch maps based on knock detection, which is well beyond OEM capability.

Cozzm0_AU is in no way connected with TunerCode/NEMU development and is hardly in a position to make this statement.

As we all know, there are many examples of faulty advice given by people who do not understand the operation of the OEM ECU.

Dave



Sorry for my mis-infromation RE: knock maps Dave. :o

I was certain that i had read in the specs before (perhaps a long time ago?) that the knock tables were removed. I'll stay out of this now. Sorry.

Originally Posted by Cozzm0_AU
As Evlnxr stated, there are vast physical hardware changes, that while with a bit of time spent on it a solution could be found. One issue is that its a far far far smaller market that offers very little extra/unique functionality compared with a DE ECU with tunercode/NEMU realtime board.


Originally Posted by dfddfd2
Cozzm0_AU is in no way connected with TunerCode/NEMU development and is hardly in a position to make this statement.


I just want to clear up that i was not saying that tunercode has no extra functionality (as i read it now it could be taking wrongly) i was saying that there is no reason to use a VE ECU with a daughterboard as it offers no real advantage when you could be using a DE ECU with a Tunercode/NEMU Realtime board which will do everything and more.


I strongly believe this product when released will be a massive success and will be buying one myself.
Last edited by Cozzm0_AU on 2011-10-01 at 21-57-55. Reason: clarification
2011-10-01 22:53:42
#123
I can't wait
2011-10-02 00:35:11
#124
I read the entire thread and I have a question. I am not sure how to word this properly so bare with me but will there be any type of switchable tune option? Maybe if I let you know my needs it will help make the question more direct. I have a Nitrous powered car, I would like to have a N/A tune and a Nitrous tune. I would like to be able to switch between the two tunes by a manual switch located on the ecu or externally (as in not having my computer plugged into the car or switching chips like i do now).
2011-10-02 00:49:50
#125
Originally Posted by Cozzm0_AU
I just want to clear up that i was not saying that tunercode has no extra functionality (as i read it now it could be taking wrongly) i was saying that there is no reason to use a VE ECU with a daughterboard as it offers no real advantage when you could be using a DE ECU with a Tunercode/NEMU Realtime board which will do everything and more.


I strongly believe this product when released will be a massive success and will be buying one myself.


No worries, I apologize for the misunderstanding.

Thanks,
Dave
2011-10-02 01:06:18
#126
Originally Posted by D-Unit121
I read the entire thread and I have a question. I am not sure how to word this properly so bare with me but will there be any type of switchable tune option? Maybe if I let you know my needs it will help make the question more direct. I have a Nitrous powered car, I would like to have a N/A tune and a Nitrous tune. I would like to be able to switch between the two tunes by a manual switch located on the ecu or externally (as in not having my computer plugged into the car or switching chips like i do now).


Yes, nitrous activation will be supported by the Programmable I/O system. Please check out the list of features in this post and post any specific questions either here, or in that thread.

Thanks,
Dave
2011-10-02 01:09:29
#127
Originally Posted by dfddfd2
Yes, nitrous activation will be supported by the Programmable I/O system. Please check out the list of features in this post and post any specific questions either here, or in that thread.

Thanks,
Dave


Thanks, that link answered all of my questions.
2011-10-02 02:41:10
#128
Is there going to be a reasonable number of boards in stock when they go on sale? I will buy one the moment they are available, I just don't want to miss it and then end up on a waiting list.
2011-10-02 03:16:24
#129
Originally Posted by dfddfd2



There are many items in a bin file, however the "we have only scratched the surface.." statement is untrue. With TunerCode, I have identified and documented every tunable constant, table, and flag in the bin, including logging of all pertinent calculated values.





Dave


Sorry man, i was referring to the address files we use for tuning the sr20ve ecu and associated daughter boards, i only got a basic address file, without even the ability to change the vvl switch point, a friend of mine found this, and then i transfered as much as i could to a TunerPro xdf file so i could try realtime tuning, which worked ok with dual ostriches (well it did before my emulators started playing up, moates doesnt seem interested in curing said fault *grumble*)

The sr20ve daughter board works, and there was a person posted about making the knock control work again, but i think there is a very good reason why it is disabled, something to do with interferance making the board run on knock maps all the time anyway.

If you want a better option, get Tunercode and a earlier spec ecu (prob gtir or import a B13 ecu from usa is preferable) and then you have some great gear to tune with. Be aware though that Dave hasnt had a chance to do any JDM ecu's apart from gtir.
2011-10-02 03:21:58
#130
Originally Posted by Will
Is there going to be a reasonable number of boards in stock when they go on sale? I will buy one the moment they are available, I just don't want to miss it and then end up on a waiting list.


There should be enough to go around when they go up for "official" sale.
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