I have a GTB2056VL from volvo D5 (185bhp) and this one uses electronic VNT actuator, and i'll soon convert it to vacuum.

Mine is water cooled hens the L.

Turbo's up to 2260 and there about will spool almost like the stock one with the right remap.

Count on that you need at least to change manifold and downpipe to match the turbo.

easiest upgrade is GT2256V from 2.4 (non mjet).

The orientation of the turbo in/outlet doesn't matter caus you can reclock it to better fit.

 

Some useful infos I didn't know that you can reclock the turbo housing.
But I'm still not 100% convinced that VNT22 can match VNT17 in spool...

BTW I read that V is for VNT, L is for water cooling...

 

Ofcourse a VNT22 will never match a VNT17 in boost build up. But with the right hardware and software the lag can be reduced to a daily drive acceptable level.

But I've heard the GT2256v from the 2.4 20v spools actually very nice on the 1.9JTD 8v engine, better than on a PD TDI engine. But high end power is better on the TDI. (Larger valves, camshaft timing and intake).

Also this turbo is the closest that will fit your engine, so it seems the most logical choice.

 

BTW, does anyone know what the letter 'k' means?
For instance what if the difference between GTB1756V and GTB1756VK? Both are from Audis 2.7TDI, but VK is available from 2009 on...
Only newer revision or completely different?

 

I don't know if this is the right thread, but why no one talks about Garrett GT1852V as a great option for turbo swap on 1.9 JTDs ? I'm far from thinking that no one here knows that this turbo is direct replacement for the stock GT1749 and absolutely no modifications are needed (same orientation), the turbo is also widely used on many diesel cars so it can be found second hand easily, and last but not least it is good for 200+ hp setups, nothing extreme but a direct replacement part? The only thing I can think of that might not be suitable is the turbo map, but VAG guys are pretty happy with it on their 1.9 diesels.

 

You can choose any turbo you like, and almost every VNT can be reclocked (orientation wize) so why limited your chose to one with same orientation?

most VAG guys with GT1852V do upgrade again later on.
If you do upgrade do it like you mean it

 

So what would be the best/easiest upgrade for the 1.9 JTDm engine??

 

GT2256V from a 2.4 JTD (non mjet) easy to find and easy to use, just need only small work to the Exhaust down pipe side.

maybe the same apply to GTB2056V, but they will be hard to source used and you'll need to buy a new expensive
one.

A lot of people use GT2256V at 1.9 diesel engine with good experience (both JTD and TDI's).

How much power do you want?

 

GT2256 will be more then OK for your car Tribesman

You don't want full boost below 2500-3000RPM...BUT if you want it...you can get more then 2BAR around 2000RPM

 

Well my idea of driveable car is, max torque available in a wide range of revs...
Optimum would be something like twin turbo 1.9JTD in saab, or 2.0d in BMW 3. But since installing twin turbo to our cars is next to impossible, I would just like to make the best out of the possible.
And if you can give me something like 300Nm@1500rpm and 400Nm form 2000-3500 then I dont care about 200+HP...

But since I have never seen 4 cylinder diesel with this kind of torque I gess there must be some limitation. My guess was that turbo doesnt spool, or are there some other problems?

Newer diesels use even smaller turbos like GTB1549V in 2.0JTD, but the torque at low revs is not so high as one would expect, or are my expectations too high?

 

You'll have your flywheel into pieces if you want 300Nm @ 1500 rpm and 400 and up at 2000 to 3500 rpm, also you'll need some bad *** clutch to transfer that torque.

 

that's what a remapped 2.4 has, with the same flywheel and clutch...

Squadra Tuning

 

Oh... I was not aware of that
I have an uprated clutch on my car... but flywheel is standard...

 

You can have torque available in a wide range of revs with at big turbo no problem.

Like kgb says "You don't want full boost below 2500-3000RPM...BUT if you want it...you can get more then 2BAR around 2000RPM"

with a GT2256V you can have al the boost in the low revs you want... if you doesn't like your clutch

So a big turbo will with the work fine with the right tune.

 

With your driving style you won't have any problems with 300-400NM

You should be ok with up to 500NM.

 

What sort of power could you get with a turbo from the 2.4??

I'm running over 200bhp with the standard unit.

 

It depends on a lot of things...

Since you have the "new" engine you should be able to reach about 260-280hp with the corresponding mods, FMIC, BMC_CDA or similar, new exhaust system...and maybe water/meth injection.

You can get even more...but problem is Torque...you will be looking at more then 500NM.

If you ask me go for it.

 

You can get even more...but problem is Torque...you will be looking at more then 500NM.

Is'nt it possible to limit torque to about 450 Nm even if the max power is about 240-250 HP?

In TDI's is easy to achive, please have a look at attachement:

MR-MOTORS - chiptuning / kompleksowe modyfikacje programowe oraz mechaniczne / warsztat samochodowy /

 

Interesting.

I'll wait until my turbo blows up first before I'd change it.

Do you know where you can buy some sort of FMIC kit for a GT/147/156?? I'd like to go down this route but I'm not sure how it all goes together or what you need, a kit would be much easier (I'm a bit lazy tbh). :lol:

For the moment I'm all about chassis tuning. I don't see the point in having massive straight line power without being able to go around bends.

 

someone said, that twinturbo is impossible ...

NOT

the main engine is same as 170hp 1.9jtd ( block etc )

and that twinturbo R2S system from borgwarner is just mechanical kit.
with vacuum controlling..

so you can put the hole thing on your car ..

exhaust manifold, turbos .. just bolt on ..

( then make a new exhaust and program )

and last..

it works that way.. perhaps

 

Jarkko, but there is not just 1 vacuum control am I right?

I saw some pictures of one of the twin turbo systems (i think it was BMWs) and there were 3 vacuum contols...

One for each turbos VNT and one to control the flow of the exhaust gases...

I dont think that you can control 3 solenoids without changing ECU.

I'll wait until my turbo blows up first before I'd change it.

This will be a long wait... unles you do something really stupid

 

This will be a long wait... unles you do something really stupid

I doubt it.

It's got a brutal map and it's used to it's full potential when in use. :lol::thumbs:

 

It isn't that difficult to make it bi-turbo...

 

It isn't that difficult ...

KGB,

I have a bigger turbo (gt2559) on the 2.4, but I have an issue in keeping the boost at the same level, the ecu will boost it at 1.5bar but as the car accelerates the boost keeps on creeping up, and up, I get the impression that the stock setup just isn't capable of controlling the boost so well on a bigger turbo when loads more fuel is being pumped through. What are your thoughts? Did you have the same problem?

(we have tested this with extra boost but no extra fuel on the standard map, and the boost is stable at 1.5 bar right through the rev range, but when extra fuel is added, the boost creeps higher)
The overboost valve is controlled using pulse width modulation isn't it? If the PWM sigmal was altered for longer on/off then would this help? and is it possible?

Any ideas would be a help....

 

Jason,

GT2559 is that from Iveco or Saab 3.0Tid?

Yours was the 150 or 175hp version?

Basicly you have to adjust all VNT control maps in the ECU...this might take a while depending on your setup and what are you trying to achieve.

BUT to answer you first question, YES the second you change your turbo with other then the stock one...bigger or smaller you have to re-work most of the ECU software to work properly with it...otherwise you will have under or overboost on most cars.

 

I dont think so... AFAIK the clutch and the flywheel on the 2.4 20V JTD are completely different to the 1.9 16V JTDs... Even the gearbox is sourced from GM in the 2.4 20V.

But it is true that 2.4 10V and 1.9 8V use the same clutch and flywheel...

BTW does anyone have the compressor maps for GT1749V turbocharger? And maybe GT2256?

Also, reading TDIclub forums I came across some threads that say there are multiple variations of GT1749V, VA, VB, VC... does anyone know anything about that? Does Alfa also use those improved versions?

 

Also, reading TDIclub forums I came across some threads that say there are multiple variations of GT1749V, VA, VB, VC... does anyone know anything about that? Does Alfa also use those improved versions?

Yes, the GT1749v from the 159 1.9 JTD is also an uprated one, comparable to the GT1749VB used by VAG engines.

 

JS JTD, only in 159? So 147, GT and 156 JTD (115 or 140 or 150HP) use exactly the same turbo?

 

No. The JTD 16v uses a different turbo than the 8v. But they are very similar in design.
These turbo's have restrictive turbines.

The 159 uses a new generation turbo with bigger tuning potential, because of better turbine flow.

 

And in the end the winner is????

 

There is no winner for me at the moment, there is a lot of alternatives, but the good ones are complicated, and others are not very attractive At least for me. And at least for now.

 

Have you spoken to Turbo Dynamics who do many of the TDI special turbos?

 

A question...

Where could I find a picture of 159 or Brera 2.4 JTD 210HP turbo? It is the Garrett GTB2056V.
I searched all over the web, but I can find only a picture of the turbo from 200HP JTD, that is Borg Warner turbo, not as good as Garrett one.

Turbolader Alfa-Romeo 159 JDT Motor 2,4 JTD bei eBay.de: Chiptuning Motortuning (endet 17.02.10 14:50:23 MEZ)

On this link you can see how the borg warner unit looks like.
I think if the Garrett unit looks the way this one does, then that could be a nice option to upgrade 1.9 JTD 16V... (only compressor intake is a bit "stange", but that could be fixed quite easily I think)
What do you think?

Also if anyone knows, is the Garrett GTB2056V in 159 equiped with electronic or vacuum VNT actuator? Judging from the name it should be vacuum (letter K denotes electronic actuator AFAIK)

 

I don't know the exact difference but when i read GTB2056

that came to my mind

The Nissan YD25DDTI Engine, a 2.5l inline-4 Turbodiesel with GT2056V Charger and 174hp (400nm@2000RMP and the engine uses a TOP mounted IC) afaik the vanes are vaccuum controled....

Turbolader Nissan Navara D40 2,5 dCi 4WD bei eBay.de: Antrieb, Motor Getriebe (endet 17.03.10 17:15:45 MEZ)

i dunno if this one would fit at all but the specs look pretty decent.

 

No that is not the same unit... it must be GTB2056... B stands for third generation turbo.