Stock ECU Real-Time Tuning / Datalogging
#352
Senior Member
Well, the main goal I guess would be to remap it to handle larger injectors, 750cc instead of 550cc, and an upgraded turbo running about 10-12 psi (BNR Stage II). This way I can know that the upper limits of the engine fall well within the envelope of the ECU map. It'd probably be a good idea to increase OMP output along with the additional load. The engine has been streetported and I have a larger exhaust. Wanting to do an upgrade, but retain all the features, instead of removing them. It's not a racecar, just one I enjoy driving. I'm don't know where to start studying on how these work, so I don't know if my ambition exceeds my reach.
#356
Senior Member
Sorry it's been a while. After that last post, I had one of the busiest years of work I had ever had, and my wife had another baby, etc, etc...
Rat, I plan on pulling the rom chip when I can get ahold of a good desoldering gun. I want to make this process reversible if it doesn't turn out. I did peel the sticker off the edge to identify the rom chip. Here are the specs with photos.S5 TII ECU Rom Chip Identification – IC660 on board
27C256A-20-XGT
8848 G09
12.5V PGM
Rat, I plan on pulling the rom chip when I can get ahold of a good desoldering gun. I want to make this process reversible if it doesn't turn out. I did peel the sticker off the edge to identify the rom chip. Here are the specs with photos.S5 TII ECU Rom Chip Identification – IC660 on board
27C256A-20-XGT
8848 G09
12.5V PGM
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mr_vaughn (04-30-20)
#358
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Sorry it's been a while. After that last post, I had one of the busiest years of work I had ever had, and my wife had another baby, etc, etc...
Rat, I plan on pulling the rom chip when I can get ahold of a good desoldering gun. I want to make this process reversible if it doesn't turn out. I did peel the sticker off the edge to identify the rom chip. Here are the specs with photos.S5 TII ECU Rom Chip Identification – IC660 on board
Rat, I plan on pulling the rom chip when I can get ahold of a good desoldering gun. I want to make this process reversible if it doesn't turn out. I did peel the sticker off the edge to identify the rom chip. Here are the specs with photos.S5 TII ECU Rom Chip Identification – IC660 on board
#360
Exhaust Manifold Leak
Just stumbled acress this topic. pure awesomeness this work!
Would you be willing to share the factor/offset used for the main maps in these denso ecu's? Ive also attached here a EU spec N380 S5 turbo 2 dump.
I do have a knightsports N374 ecu of which I jut read the flash and then find a N374 stock dump to compare it to. the tuned rom gives approx 800 mbar midrange boost. I have a tuned N380 rom also that goes fine apart from the boost being only around 600 mbar. I could run the jap tuned ecu but it runs a rather lean up top which the N380 tuned ROM does not.
I was hoping to find the duty or boost target in the N380 dump and increase it slightly so it would work like the JDM spec N374 tunes roms..
Would you be willing to share the factor/offset used for the main maps in these denso ecu's? Ive also attached here a EU spec N380 S5 turbo 2 dump.
I do have a knightsports N374 ecu of which I jut read the flash and then find a N374 stock dump to compare it to. the tuned rom gives approx 800 mbar midrange boost. I have a tuned N380 rom also that goes fine apart from the boost being only around 600 mbar. I could run the jap tuned ecu but it runs a rather lean up top which the N380 tuned ROM does not.
I was hoping to find the duty or boost target in the N380 dump and increase it slightly so it would work like the JDM spec N374 tunes roms..
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Rub20B (10-16-23)
#362
Full Member
Saw the age of this thread, figured I would ask still.
Did a S4 NA ecu ever get taken apart and timing maps pulled from it?
Is there some way to convert the load percent to what manifold pressure it would be?
Did a S4 NA ecu ever get taken apart and timing maps pulled from it?
Is there some way to convert the load percent to what manifold pressure it would be?
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