First try to remap VAG 1.4 TDI

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First try to remap VAG 1.4 TDI

Postby naskoradew » Mon Aug 18, 2014 11:28 pm

Hi to all! I will be thankful if someone check my attemps to tune that car. I realy want to hear some opinions for made changes.
Thanks in advance!
http://dox.bg/files/dw?a=9aa2026c6f

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Re: First try to remap VAG 1.4 TDI

Postby naskoradew » Mon Aug 18, 2014 11:29 pm

The file again
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Re: First try to remap VAG 1.4 TDI

Postby adriancl » Tue Aug 19, 2014 6:08 pm

Hi mate,
At first glance,
Forgot ori file
Forgot to tune turbo map
TL bad
SL bad
DW bad
Injector duration bad
IQ/MAP-bad
EGR -OK
Please read EDC 15 tuning guide.

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Re: First try to remap VAG 1.4 TDI

Postby naskoradew » Tue Aug 19, 2014 7:38 pm

I am attaching the .ori file.
I started to read the guide allready ;).
Can you tell me just in few words what is the main mistakes...just to get the idea from somewhere.
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Re: First try to remap VAG 1.4 TDI

Postby naskoradew » Mon Aug 25, 2014 6:59 pm

adriancl wrote:Hi mate,
At first glance,
Forgot ori file
Forgot to tune turbo map
TL bad
SL bad
DW bad
Injector duration bad
IQ/MAP-bad
EGR -OK
Please read EDC 15 tuning guide.


DW is untouched why its bad?

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Re: First try to remap VAG 1.4 TDI

Postby juice » Wed Aug 27, 2014 2:22 pm

The tuning it's ok man, nothing to worry. Dont tune first time start of injection, only duration.

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Re: First try to remap VAG 1.4 TDI

Postby naskoradew » Wed Aug 27, 2014 8:37 pm

juice wrote:The tuning it's ok man, nothing to worry. Dont tune first time start of injection, only duration.


Thanks for looking mate.
I have one question about SOI and Duration.
If in .ori file we have 28 degrees duration and 26 degrees SOI for same IQ and RMP that means we inject fuel to 2 ATDC. In that case is proper to make SOI to 28? Is good to inject all the fuel BTDC right?

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Re: First try to remap VAG 1.4 TDI

Postby Fordy » Wed Aug 27, 2014 11:12 pm

not looked at file

if you increase duration then add a little soi, not too much as cylinder pressures go upwards. lots to learn about soi and its effects.
for simple stage 1 not needed to adjust.

DW can be touched to improve pedal response and driveability

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Re: First try to remap VAG 1.4 TDI

Postby juice » Thu Aug 28, 2014 10:35 am

naskoradew wrote:
juice wrote:The tuning it's ok man, nothing to worry. Dont tune first time start of injection, only duration.


Thanks for looking mate.
I have one question about SOI and Duration.
If in .ori file we have 28 degrees duration and 26 degrees SOI for same IQ and RMP that means we inject fuel to 2 ATDC. In that case is proper to make SOI to 28? Is good to inject all the fuel BTDC right?

The injection process can continue ATDC, is not a problem, this depends by the medium inside the cylinder. There are some conditions..more boost, => can inject earlier. Hot days = hotter charger air = doesnt need advance, because fuel will explode too early and will push cylinder back down. More SOI needs a bigger intercooler for cold air, thats the rule, cold air = need advance, hot air need retard because autocombustion is quicker. Another rule , lean mixture = need retarded, rich mixture needs advance.
The ideal conditions as i know from several researches is that injection to end(end of injection), to maximum 4-6 ATDC. Well you end it to 2ATDC is still ok, but if you move it earlier then maybe could be too advanced. Try little steps, add 1 degree to duration and 1 degree to SOI lets say and test. This must happen when you increase fuel more than 20 25%..you dont need to do that for middle load area or maybe just 10% more fuel.
Everything depends by ignition delay..one thing is injection TIME, and COMBUSTION time..diesel doesnt burn instantly like kerosen, thats why must be injected Before. As i read in kerosen/hidrogen cases, all fuel can be injected at 0 degrees TDC because it burns instantly. Ignition delay depends again by air intake temperature, cetane of diesel, boost.

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Re: First try to remap VAG 1.4 TDI

Postby adriancl » Fri Aug 29, 2014 2:03 pm

naskoradew wrote:
adriancl wrote:Hi mate,
.


DW is untouched why its bad?

Hi mate,
Once again:
DW(both) are modified(bad), no doubt,look here:
DW-CORDOBA.jpg

Mod file is bad,I do not mean to offend you, you must know the truth,I give you one example,Torque Limiter map,very bad modified.
TL-Cordoba.jpg

user juice says"The tuning it's ok man, nothing to worry"-mistake, you will remain under the impression that it must be modified a file, and for sure that is wrong way mate.
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