Alfa 156 JTD 8V 115HP

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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Sun Nov 16, 2014 6:04 pm

Today I did some run on highway...10% uphill road, 5th gear, from 100km/h to 150 km/h.

run_13.JPG
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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Sun Nov 16, 2014 6:09 pm

mladenke wrote:Set n75 map properly, spikes can be dangerous. Open turbo vane more.

What map of that three and in what IQ and RPMs?

Previously I have no touch at N75 maps so spikes were above 1550...but now I only sometimes have up to 2527 and 2512...but is this so much risk pressure?

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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Sun Nov 16, 2014 6:10 pm

panasonic1 wrote:75.- map reduce values in low revs and get more traction and better economy.

In which maps of three ones and which IQs? I suppose under 30mm3?

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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Sun Nov 16, 2014 6:12 pm

mladenke wrote:73mm3 at @2000rpm in TL. Your cluch can handle that at wot?

Obviously can...it is not slipping (but I feeling that it is on edge).

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Re: Alfa 156 JTD 8V 115HP

Postby mladenke » Sun Nov 16, 2014 6:32 pm

@2100 and 2200 rpm you have 2.4 boost, then its drop to 2.3, than again he rise to 2.4. This is becouse your pid trying to reduse pressure and you have that drop. So open turbo vanes from 2000 to 2300 rpm little more, then test it.

for eco mod open turbo vanes <30mm3 and to 2500rpm. I do it on all 3 n75 map.

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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Sun Nov 16, 2014 8:30 pm

I've done some additional modifications that everybody suggested.
Tested only very short run because started raining.
No more modifications until next weekend...I need car for go to work :)
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Re: Alfa 156 JTD 8V 115HP

Postby panasonic1 » Tue Nov 25, 2014 4:43 pm

hello the theme and I see interesting my car is a Fiat Marea 1.9JTD with EDC15C7 far I drove with some very Smoke file, but now it is similar to a colleague sike_145 expect to give info on what is happening in detail.
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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Tue Nov 25, 2014 11:45 pm

panasonic1 wrote:hello the theme and I see interesting my car is a Fiat Marea 1.9JTD with EDC15C7 far I drove with some very Smoke file, but now it is similar to a colleague sike_145 expect to give info on what is happening in detail.


Hmm...in my opinion (what I've learned so far), both remaps are bad and looks like you don't know what are you doing. Missed all limiters, increased duration without changing axes, increased turbo but decreased n75, too much torque under 1500 rpm...AFR below 17:1...so it will smoke...changing railP in weird way...
Do you have stock car or have some modification on it (different injectors, turbo??)

I know that my remap is maybe far from perfect, but trying to do some logic stuff and calculations. Something you cannot calculate, just try and log...than change again and log...or tune it on dyno (if you are lucky to afford it).
Currently, I have a few things left in my remap to do...but I think that are just fine tuning stuff; other things looks OK in driving and car does not complain on anything (eg. no errors :) )

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Re: Alfa 156 JTD 8V 115HP

Postby sike_145 » Wed Nov 26, 2014 12:08 am

This is my new mod; lowered N75 and turbo pressure at economy maps for low IQ; have to test if this is increasing turbo lag and how is car driveability in hilly roads...
Increased RPC only over 4000 RPM and in high IQ to allow injection to end under 5 deg ATDC and SOI under 24 degrees BTDC.
Increased IQ in smoke limiter only at highest airflow...with all previous remaps I can see some smoke on mirror, but it is not black; at day it is almost invisible, but at night when other car with lights on is behind me, I can see quite amount of smoke (with WOT). But as I think, that was also case and without remap, when car was stock. Should I be bothered by that smoke and try to get rid of it...or it is a diesel...it has to smoke? :)
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Re: Alfa 156 JTD 8V 115HP

Postby mladenke » Wed Nov 26, 2014 9:41 am

smoke on all rpm or just in high revs? if you have smoke at wot on all rpm, than something its not good. But becouse you have smoke before remap, look for your air inlet and turbo pipes. I never have smoke, and i have more IQ than you. Do you still have both cat on or you remove cat's? and in last diag picture what is AFM? is it actual intake air quantity?

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