JTD 8V with JTDm turbo / now JTDm 16v Stilo

crossshot · Mar 15, 2015

sussexa · Mar 15, 2015

as far as I can remember that turbo number looks to be the last incarnation and the same as the turbo that comes on the jtdm 16v 170hp ducati models(but identicle size wise to the later jtdm 16v 150hp models)
im sure guys have done this mod before if you can search and find there thread it might help.
anyway heres the std boost map off the ducati, this will help for sure to guide you of what its capable of standard, it is ok for more but most recommend 2500-2600mbar limit for safety.
View attachment 471866

of course you will need more fuel than the ducati to reach the same 170hp and most definitely a touch more boost as your only 8v it wont flow as well top end .
you will most likely need to mod vnt maps also and might not be as easy as just copying maps off jtdm most likely lots of logging and mods to vnt maps

TribesMan · Mar 15, 2015

Stock intercooler or FMIC?

With FMIC 180HP is possible.

crossshot · Mar 15, 2015

FMIC comes a little bit later. But SMIC get the best air flow at the moment

http://www.danverclan.de/media/pics/stilo/stilo_oelkuehler_jtd_015.jpg
http://www.danverclan.de/media/pics/stilo/stilo_oelkuehler_jtd_019.jpg

sussexa · Mar 15, 2015

some figures in here
http://www.alfaowner.com/Forum/tuning-and-upgrades/263828-jtd-8v-115cv-turbo.html
although looked to be a hybrid of jtd/jtdm turbos on an 8v

crossshot · Mar 15, 2015

Thank you, sussexa :thumbs:

ECU File of a 150HP Multijet Fiat Stilo with JTDm Turbo is avalible to copy some informations.

sussexa · Mar 15, 2015

yes I can put up here vnt maps from my oe map later
who is doing mapping ? if no one yet its worth pm tribesman
its worth doing the fmic now as youll need to alter stuff again after, might as well do all supporting mods first if possible that is
here was my fmic install with pics and a graph to show lower temps and gained mass air (even at lower boost,)
Technical: Fitting a bigger intercooler - Page 2 - The FIAT Forum
usefull to you as your smic looks as mine was also your grills look nicely opened up already over the standard bumper.

also a custom made smic in alloy and deeper would work well in stilo I think, swap likje for like but cost more to make over ebay fmic coolers

crossshot · Mar 15, 2015

First tests with the prototyp fmic looks great. The charged air temperature was always 19 degrees over outside temperature. I ask for post some pictures.

The mapping comes from a very nice guy. He know what he do and he knows my drive-style. Always full throttle (i love germany). At the moment i drive with stock turbo 142HP/335Nm smokefree. And now i want more.

sussexa · Mar 15, 2015

do the pics in the fiatforum link not show up for you ? I think I put all pics I had in that thread.
and just to clarify you have a stilo jtdm map file or you want one ?
heres a jtdm 170hp map
http://www.ecuconnections.com/forum/viewtopic.php?f=44&t=20709
heres my stilo jtdm 150 map
http://www.ecuconnections.com/forum/viewtopic.php?f=6&t=10013&hilit=stilo+jtdm

crossshot · Mar 15, 2015

I see the pics, thank you. But i dont like to long intake pipes. The prototyp fmic has booth connections on one side. So we have very short pipes.

yan.ko · Mar 15, 2015

FMIC with inlet and outlet on the same side is not good because of high pressure drop.

crossshot · Mar 15, 2015

Do you have logs about this or is it theoretically?

sussexa · Mar 15, 2015

something like this with modded in out angles would be ideal straight swap very short runs, but better cooling over standard , at 170 hp with that turbo I wouldn't expect massive inlet temps.
http://www.ebay.co.uk/itm/Mazda-RX-...-Alloy-Intercooler-SMIC-/301264408225?pt=LH_DefaultDomain_3&hash=item4624c20ea1

yan.ko · Mar 15, 2015

Haven't done any myself, but you can find some articles on internet.

sussexa · Mar 15, 2015

as above I remember maybe twinpass 2 to 2.5 psi drop vs single pass1 to 1.5 psi drop.
but you could see more or less any end of these figures depending on quality and design of the core, ie a quality twinpass could have lower psi drop than a poor design single pass but in general single pass are preferred unless routing just cant be done.

crossshot · Mar 15, 2015

Does anyone know the exhaust port diameter of the cylinder head (after valve)?

yan.ko · Mar 15, 2015

Exhaust valve throat diameter is about 29 mm on 8v head

crossshot · Mar 15, 2015

Thanks :thumbs:

crossshot · Mar 16, 2015

Here are two pics of the intercooler.

http://www.danverclan.de/media/pics/stilo/turboumbau/llk_001.jpg
http://www.danverclan.de/media/pics/stilo/turboumbau/llk_002.jpg

The dimensions are 480x250x72mm (without pipes)

crossshot · Apr 4, 2015

JS JTD · Apr 8, 2015

crossshot said:
small update here
After the adaptation i wanted to clean the turbo...
Good idea but no good news. The turbo was a used item from italy with little kilometer. But the turbine-side is completely damaged.

Now i have sent the turbo to a "repair-guy" from austria.

Ouch, that's too bad.
Are you sending the turbo to Alex (ZturboZwettl) maybe?

crossshot · Apr 8, 2015

Yes, i have send the turbo to Alex (Home - Z-TURBO)

Do you know him? He was recommended to me.

JS JTD · Apr 9, 2015

crossshot said:
Yes, i have send the turbo to Alex (Home - Z-TURBO) Do you know him? He was recommended to me.

I don't know him personally, but I know he's a well respected member at TDIclub so your turbo should be in good hands.

sussexa · Apr 9, 2015

read a lot of good stuff off him too on there(if hes majesty78)
worth thinking of modifications while with him?
if the compressor side has been damaged at all id think about a slightly larger extended tip wheel, would require machine work to housing but open up a bit of higher boost reliability
like this
http://www.ebay.co.uk/itm/MFS-49mm-...ht-for-GARRETT-GT1749VB-/171734714384?pt=LH_DefaultDomain_3&hash=item27fc2fc810
see what he rekons

crossshot · Apr 9, 2015

I do not like hybrid turbos. After the repair i have a good turbocharger for 170 to 180HP. In 60.000km i must change the timing belt and then i want do the next steps with bigger fuel pump & GTB

crossshot · Apr 11, 2015

Free flow exhaust is mounted (oxygen cat still in there)

I like it

crossshot · Apr 11, 2015

And here two sound-check videos:

https://youtu.be/2FlppyFMthA
https://youtu.be/48lrPZC9YC8

crossshot · Apr 16, 2015

what are your experiences with free-flow exhausts?

I have made a lot GPS measurments before i mounted the free-flow exhaust. My maximum vmax without freeflow was 208,8km/h. With freeflow i'm 2km/h faster. Has somebody the same experiences?

Before:
http://www.danverclan.de/media/pics/stilo/turboumbau/stilo_before_freeflow.jpg

After:
http://www.danverclan.de/media/pics/stilo/turboumbau/stilo_after_freeflow.jpg

JTD 8V with JTDm turbo / now JTDm 16v Stilo

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