Welcome to JTD-Performance.com, the only shop specialized in tuning hardware for JTD engines Where remapping ends, JTD-Performance will continue! Take a look around in the shop and do not hesitate to contact us for questions.
We offer performance parts for a wide range of engines. Everything from the 1.3 MultiJet to the 2.4 JTD for example. We also offer tuning parts for TBi and MultiAir Engines.Wij bieden performance parts aan voor veel verschillende motortypes. Alles van de 1.3 MultiJet tot bijvoorbeeld de 2.4 JTD, daarnaast bieden wij ook dieverse tuningdelen aan voor TBi en MultiAir motoren.
We always include a manual with the products that are more difficult to install, you can choose if you want the manual on paper or if you also want it digitally on or special platform at checkout.
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JTD-Performance
Engine performance parts for JTD and TBi engines
Now available in the webshop; Oil pressure fixing kit for Giulia - Stelvio JTD RWD.![]()
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Does your Giulia / Stelvio JTD suffer oil pressure loss? Take action quickly, as severe engine damage can occur if this is ignored for too long. JTD-Performance got to the bottom of this problem and after many prototypes and oil pressure logs engineered this kit consisting of the oil pump seal modification, oil baffle plate and top quality RTV gasket for the oil pan.![]()
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Comes with detailed assembly instructions![]()
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Note: only applicable to the 2.2 JTD RWD versions.![]()
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Order here: jtd-performance.com/en/product/oil-pressure-fixing-kit-giulia-stelvio-jtd-rwd/
Some time since the latest update, we have not been sitting on our hands... We have been very busy with many orders, thanks to all buyers for the trust in our products!![]()
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Besides parts we also had several car projects, such as a beautiful Rosso Giulia 2.0T Competizione where we fitted our upgrade turbo and 200 cell downpipe to (end result 360+ hp/500+Nm). ![]()
Also a Stelvio 2.0T that already had ~300 hp with a Massimo tuning, we fitted the hybrid turbo, downpipe and special Squadra Tuning mapping, and the owner left with 70 hp more and a big smile. ![]()
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And last week we had another Stelvio 2.2 Veloce 210 with the well know lowered oil pressure problem. We opened the engine oil pan, removed the timing gear and oil pump and once again found 4 out of 7 cover screws loose. With our seal mod, retightened oil pump and 5W30 oil the pressure was increased 1+ bar. Luckily we found no metal particles in the pickup or noticed any damage at the lower block structure, so the owner can enjoy his beautiful car for many more kms now without worries.![]()
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And as this car was a AWD version, we made a first design for the oil baffle as well, so it will not be too long before this version will be available in the shop next to the succesful Giulia-Stelvio RWD oil baffle plate.
Giulia - Stelvio 2.2 JTD oil pressure, another piece of the puzzle found and solved!![]()
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We have been putting efforts in the investigation and solutions to the oil pressure problems which are occuring at these 2.2 JTD engines, in some cases with complete engine failures as a result. Problems which were not known to the previous generation engines as the 1.9 and 1.6-2.0 JTD. Some people say the 2.2 JTD is a bad engine because of that. We don't think it's a bad design; does it has some flaws, yes it has, and if we can resolve these points we believe this can be a both powerful and reliable engine.![]()
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So far we know the lip seal of the oil pump can wear down. The oil pump cover screws can get loose. And the manufacterers choice of eco oil that compromises protection against wear (the HTHS rating is an important one, as is ZDDP content)![]()
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With these three issues taken car of at the Giulia JTD RWD test mule, somehow we still logged low oil pressure, but only during hard acceleration and in corners. The pressure was lowest in fast left corners. Typically what you would also have on a racing track. We carefully looked at the internals of the oil pan, especially at the placement of the oil suction tube and the internal structure. See below for the first photo with comments. We figured the oil pickup is not really centered in the oil bath, but placed towards the front. Also it's visible the pan is not symmetric, at the LH side the pan is caved in to provide room for the starter that sits next to it.![]()
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So what happens under hard acceleration with the oil? It will move to the rear area of the pan. Compare it with the feeling of being pressed in your seat, it is the result of inertia. So during a left corner, the oil will flow to the right. And combine forward acceleration with a left corner and the oil will end up more towards the rear right corner of the pan. All this moving of the oil has a negative effect on the oil pressure. We know, using the Performance Logger we can log oil pressure but also G-forces.![]()
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So to keep the oil as much as possible close to the oil pickup point, we made a baffle. We refined it, later we refined it some more, and the first prototype went into the company car a couple of weeks ago. And we can say; it works! There is less oil pressure drop during acceleration and cornering, stepping up the reliability with another notch. See the oil pressure graphs with and without baffle below.![]()
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The first small batch is finished and will be available through the webshop. Please note; these first baffles are RWD versions only. AWD is in the making as well.![]()
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jtd-performance.com/en/product/oil-baffle-plate-giulia-stelvio-2-2-jtd-rwd/
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