Tuning Tuning my stilo JTD, turbo upgrade, help please!

[boogerz2004]

hi, already had my stilo 1.9jtd remapped and straight through stainless exhaust installed which has got me to about 170bhp. now want to upgrade the turbo, what turbos will fit? also what uprated fuel injectors will fit? what uprated intercooler will fit? and what else could i upgrade. any help would be much appreciated. regards marc

 

[Stealth123]

Welcome
Personally I think you pushing it a little too much, there is only so much you can do to this engine, too much will be a waste of money, you probably would be better off putting a 2.4 Abarth in there.
Currently it is a good engine and system and nearly packed to capacity, little chance of fitting anything bigger or better in there especially the intercooler and then you would need to upgrade the whole ECU system and whatnot to compensate.
Well my opinion

 

[yampug]

how do you get on with mot's with a straight through stainless marc?

 

[boogerz2004]

nothing was mentioned and it passed, why?

 

[yampug]

i used to own a tipo 16valve with a straight through stainless exhaust and mot places wouldn't pass it. had to change it over for standard exhaust each time with right boxes for them to pass it

does your stainless look standard to the untrained eye? fake boxes?

 

[boogerz2004]

thanks for you advice stealth, is the abarth a turbo and i though it only comes in auto? is there any other engine? what do you think about an induction for my current stilo, worth it? regards marc

 

[Shadeyman]

150bhp multijet engine is the best Stilo engine IMO and can easily be remapped to 200bhp.

 

[boogerz2004]

not sure, its not de-catted or anything. anyway to be honest it was one of those in and out franchise garages and there ****. done some really shoddy work on a previous car.

 

[Stealth123]

thanks for you advice stealth, is the abarth a turbo and i though it only comes in auto? is there any other engine? what do you think about an induction for my current stilo, worth it? regards marc

No the Abarth 2.4 is not turbocharged but standard it produces 170bhp and it has a Selespeed transmission.
I am with Shadeyman, the 150bhp engine would be your best bet if you want to stick with diesel.
Otherwise you could always sell your current and look for higher performance petrol models.
But as I say my opinion, realistically you would be wasting money on upgrading your current engine any further.

 

[dave]

what has more torque OP's engine or 2.4 Abarth?

 

[Stealth123]

what has more torque OP's engine or 2.4 Abarth?

115JTD 250nm
Abarth 2.4 221nm
Both standard of course...
Now answer this, the OP claims 170BHP on remapped, how is his torque affected with the change?

 

[sussexa]

Jtd16v remapped look at 360nm-4x0nm depending on map and how long you want drivetrain to last.

 

[rattystilo]

rather than putting in a different turbo you can get yours rebuilt as a hybrid. they take your turbo, bore it out to take larger vanes then rebuild it with upgraded components.

js tuning do a front mount intercooler kit for a 147 jtd, which may fit. they also do a decat which makes a big difference.

Problem you have is that there is very little on tuning the Stilo jtd you will be one of the first to do it.

 

[sussexa]

I could be wrong but I'm sure I've read the later jtdm 16v turbo is a good upgrade for the 8v as it has 6.3mm vnt cartridge as to 5.5mm for the 8v which reduces the back pressure,increases top end flow etc but 16v manifold is round your 8v is oval so a bit of modding necessary.
Fmic is worth it as your remapped your inlet temps are probably higher than STD, my eBay fmic reduced temps from 50*c to 30*c or approx 10-15*c above ambient.
Injectors I'm not sure, you may be close to max?do you know your injection window, soi , rail pressure , and regulator%, as pump may not supply much more fuel for bigger injectors.
I,ll post up some links after for 8v turbo and injectors.

 

[Stilo Nutter]

Sounds like this is exactly what you need

http://www.alfaowner.com/Forum/tuni...8v-jtd-turbo-upgrade-200-210hp-159-turbo.html


How deep are your pockets though or how good are you at welding and customizing/modifying? lol

 

[sussexa]

heres one for fmic mines in there near end and another stilo radoslap i think (page 20)

http://www.alfaowner.com/Forum/tuning-and-upgrades/150484-fmic-for-147-1-9-jtd-8v.html

heres my logs top fmic vs bottom smic colum d boost temp colum e maf temp
http://www.alfaowner.com/Forum/atta...-fmic-for-147-1-9-jtd-8v-fes-smic-vs-fmic.xls

heres a thread on injectors 2.4 jtd but some info in there for 8v i think

http://www.alfaowner.com/Forum/tuning-and-upgrades/221913-2-4-jtd-bigger-
injectors.html
another on injectors
http://www.alfaowner.com/Forum/tuning-and-upgrades/214411-increasing-injection-pressure-jtds.html

turbo as linked above and
http://www.alfaowner.com/Forum/tuning-and-upgrades/190996-147-jtd-turbo-upgrade-options.html
http://www.alfaowner.com/Forum/tuning-and-upgrades/250489-gtb2056v-jtdm-2-4-turbo-pics.html
http://www.alfaowner.com/Forum/tuning-and-upgrades/261308-gt2052v-of-2-5-v6-tdi-180hp.html
http://www.alfaowner.com/Forum/tuni...-that-need-changing-when-turbo-i-uprated.html

what map sensor is the 8v? if 2bar or 2.5bar you may need to change to a 3 bar as well as turbo
http://www.alfaowner.com/Forum/tuning-and-upgrades/291964-fiat-stilo-jtd-with-gt2256v.html
http://www.alfaowner.com/Forum/tuning-and-upgrades/134925-adequate-turbo-pressure.html

these will keep you busy for a while.

hows your clutch and dmf holding up so far?

 

[radoslavp]

8V 1.9 JTDs use 2.5 bar Bosch sensor confirmed.

It can be easily changed with the 3 bar one, just your tunner needs to do proper calibration in the maps.

Right now I'm driving with a 3 bar Bosch.

Another modification you can make is change the high pressure diesel pump from a 1.9 JTD 16V as I did. This one makes 1500 bar rail pressure with no issues what so ever. Presently we are trying to find a way how to put the 16V pressure sensor because they are different. After that 1800 bar is no problem.

Don't look at all for injectors. Original injectors are good for 200+ hp, something you are very far away from. Without all of the above mods + exhaust + FMIC + bigger turbo you are far away from the above figure. When you put all, then you are still away, but you'll face below clutch/flywheel problem.
16V injectors will only help make the car smokeless, but that is easily done with the bigger high pressure pump and rail pressure too.

Now the big mods ... I'm always saying it - flywheel and clutch. They won't cope with all of the above modifications.
I had to go to a completely custom setup. Giving the secret for the first time. Right now I'm driving with a custom fit Alfa Romeo 159 dual-mass flywheel, clutch and custom clutch pump. :devil:

 

[rattystilo]

Radoslavp,

i would be interested to find out more about your clutch set up. i have a 115jtd remapped and decatted and it is now pushing the limits of the clutch so would like to upgrade it when it finally goes.

thanks

 

[radoslavp]

Hello mate, unfortunately I cannot be of more help through the virtual reality, as what we made on my car required custom modifications.
Basically Alfa Romeo 159 with 1.9 JTD 16V (150HP) engine uses Opel gearbox and correct flywheel, clutch push mechanism to do the trick. The flywheel, clutch and the plate fit with no modifications required at all. Flywheel fits with old bolts. What is required is to modify the clutch pump, the original one from Stilo.
First time we bolted the kit with no modifications to the pump, everything was a straight fit, but the clutch was slipping a lot, since the pump never engaged it fully.
Than after some calculations on the clutch pump movement, my mechanics modified the pump (don't ask me what and how as I didn't go through the whole process, and I'm not a technical person), and now the car has more than 1000 km with rock solid results.

From what I read, Opel guys say that 200+ hp remaps with the original flywheel (150HP, as the one I have and the one which is installed on 159s) are not a problem.
Also have in mind that the original DM flywheel+clutch are rated 150hp/320Nm, so even with a very aggressive remap on the Stilo you are somewhere below the OEM specs of the whole kit.

All in all you have to have a very serious mechanics who will agree to try such an experiment and make it true with skills.

Hope I helped you in any way.

Best Regards,
Radoslav

 

[sussexa]

ask these guys if this will fithttp://www.italianspares.co.uk/product.php?productid=16411&cat=253&page=2or if you just want a clutch only try these guyshttp://www.clutch-specialists.co.uk/auto/FIAT-Stilo-1-9-JTD-115-ch-0061512-10-01-08-05-fast-road-clutch-kits