Citroen C4 1.6HDI tuning

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Re: Citroen C4 1.6HDI tuning

Postby cristim » Mon Mar 24, 2014 7:56 pm

sparco,
mine is stock, only a simple flange for gtb, for the moment
i have in plan to do, but... no time for that, only few minutes/day to learn how to mod my ecu
you wanna do it like fiesta's "badman"?!!! :)

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Re: Citroen C4 1.6HDI tuning

Postby sparco » Tue Mar 25, 2014 2:37 am

I actually got this recipe years ago from lars lybker...
and I shared the info on tdocuk.com...

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Re: Citroen C4 1.6HDI tuning

Postby fisgas » Fri Apr 18, 2014 9:52 am

Hi Sparco!
Little question i have a C2 1.6hdi i want change the stock turbo and much people tell's that turbo of the C5 2.7 hdi is good for my engine ,what you think?

Thank you

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Re: Citroen C4 1.6HDI tuning

Postby sparco » Sun Apr 20, 2014 3:59 pm

You could try that one, tho I dont know which one is used on that engine...
I would recommand a GT17 series turbocharger... it seems the gt1752v is the best option, as the gt1756v might produce more power, but with bigger lag...

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Re: Citroen C4 1.6HDI tuning

Postby So_SiMpLe_007 » Wed Apr 23, 2014 3:48 pm

Damn!

That's good mate!

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Re: Citroen C4 1.6HDI tuning

Postby M780 » Thu Apr 24, 2014 3:46 am

Good job.

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Re: Citroen C4 1.6HDI tuning

Postby martinus » Thu Nov 27, 2014 12:44 pm

Hey,

Where can the air mass meter calibration?

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Re: Citroen C4 1.6HDI tuning

Postby sparco » Thu Nov 27, 2014 1:25 pm

I'll have look at your file in the weekend ;)
You have a new maf to be installed?
This one maxes out at around 1100mg/stroke

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Re: Citroen C4 1.6HDI tuning

Postby martinus » Thu Nov 27, 2014 6:49 pm

Here in the temperature around 0 degrees.

+ 2 bar of boost pressure. So 1400mg / stroke the air mass, but from 4000 to 5000 rpm, only 1000mg / stroke.

A few days ago I was in a Toledo TDI and after air mass meter replacement was good.

My problem is that I could not solve. The amount injected 85mg / stroke, but only up to speed 60mg and I do not know why.

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Re: Citroen C4 1.6HDI tuning

Postby sparco » Fri Nov 28, 2014 12:43 am

My problem is that I could not solve. The amount injected 85mg / stroke, but only up to speed 60mg and I do not know why.
What do yoe mean by that?


Off course...
Volumetric efficiency drops as revs rise...

are you sure the turbo is keeping target boost?
Do you have diagbox or lexia to make proper logs?

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