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S60 & V60 '18> / XC60 '17> / S90 & V90 '16> / XC90 '15> General Forum for the SPA-platform 60- and 90-series models |
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D4/5 tuning- Interesting..Views : 9312 Replies : 69Users Viewing This Thread : |
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Feb 10th, 2019, 14:17 | #41 |
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No polestart lover here?
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Onyx Black Volvo S90 D4 Inscription Automatic with Winter Pack, B&W sound, 20 Inch wheel that I am trying to swap, Black Interior, Android Auto and lots of lights and beeps for warnings.... |
Feb 10th, 2019, 14:32 | #42 |
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Tuning boxes, which plug in between the rail pressure sensor and the car's harness, only really modify the signal from the rail's sensor in order to cheat the system into raising the rail fuel pressure and similar for turbo pressure. No all boxes modify the boost pressure. There are more sophisticated systems that plug into the harness between each fuel injector and these can alter the duration and timing of injection as well as fuel pressure. Steinbauer comes to mind as a company that can supply both types for many engines. https://www.steinbauer.cc/gb/products/
Mapping is more effective. However many ECU's [most even?] can no longer be simply flashed with a modified engine map that overwrites the original. In many cases the ECU has to be opened and the chip unsoldered and removed to be flashed, before re-soldering and closing again. This is not a trivial exercise. Not sure about that that box that fits on the OEBD socket inside the passenger's compartment. It's an intriguing concept of which I have no experience whatsoever. I have used tuning boxes on various cars and plant equipment and they work well on some, hopeless on others and pull up error codes on the dash of yet other vehicles. I also mapped my Q7 and it was brilliant. It transformed the performance of that car in a very positive way, bringing the performance up to equal that of post-facelift vehicles with the more powerful factory engine. It did actually improve fuel economy slightly, but not by as much as indicated on the dash display. Personal opinion but I would be more inclined to risk one of these on an engine that was not already at the top end of power output for that engine family. That means I would maybe try it on a D4 but not on a D5. I have got Polestar on my XC90. The power output hardly changes but the gearbox map does. Yes it is noticeable, for the first couple of days, then you forget what it was like previously, which was perfectly good but slightly different. Polestar is about to make available a new version with 'overboost', which is a temporary, 15 second approximately, serious increase in power. Useful for overtaking up hills one supposes. This is also apparently being offered as a free upgrade for people who bought Polestar in 2018 and makes the Polestar upgrade look like much better value for money than it was. More bang for the buck.
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XC90 D5, 2017 Inscription. Dark Grey. Xenium pack. Winter Plus with HUD. Black leather interior with alloy trim inserts. Ownership ended June 2020, Happy motoring times! Last edited by Quacker; Feb 10th, 2019 at 15:12. |
Feb 11th, 2019, 07:23 | #43 | |
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I would ave the same issue. Unlucky that it didn't work as did look a good option instead of getting bummed by Polestar for a gearbox tweak
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Feb 11th, 2019, 07:35 | #44 |
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Possible quote of the week?
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V90 Momentum, Mussel Blue - Due March 2019 |
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Feb 11th, 2019, 11:16 | #45 | |
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I’ll keep you updated...
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MY19 V90 D4 R Design. Osmium Grey |
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Feb 11th, 2019, 13:47 | #46 |
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Here is Steinbauer's module for the XC90. It is not the type that increases rail fuel pressure or boost pressure but does extend the injection duration, and therefore quantity of fuel. I suspect that driven hard, it increases exhaust has temperature compared to a standard engine. Probably with no ill effect to the engine as long as the duration of full power operation is short. It is probably the way that Polestar's new power boost works, although it might also increase boost pressure and only for a short time-limited duration.
https://www.steinbauer.cc/gb/product...73kw__5ty/cuS/ There is no link between me and the company and I have no personal experience of their products but do know that they are very popular and possibly market leaders in the commercial vehicle, agricultural and car tuning sector in the UK and abroad.
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XC90 D5, 2017 Inscription. Dark Grey. Xenium pack. Winter Plus with HUD. Black leather interior with alloy trim inserts. Ownership ended June 2020, Happy motoring times! |
Feb 12th, 2019, 12:46 | #47 | |
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Feb 12th, 2019, 13:21 | #48 | |
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I have a contact number in my phone from many years ago for a Jason, who was the agent for Wales, which might be near enough to you. No idea whether he's still an agent but he was very committed, having a fully liveried van and a dynamometer [probably a PTO one not a wheel type]. 07515851696 Give it a go. You have nothing to lose. Steinbauer itself is based in Austria. As I said I have no personal experience but they really are the top brand for this kind of thing. My guess is that if the D4 is of the same engine family, the current one, then their unit for one will work across the model range for that engine.
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XC90 D5, 2017 Inscription. Dark Grey. Xenium pack. Winter Plus with HUD. Black leather interior with alloy trim inserts. Ownership ended June 2020, Happy motoring times! |
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Feb 12th, 2019, 15:21 | #49 | |
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https://engineered.polestar.com/uk/p...automatic-2018 The increase in torque on overboost is pretty hefty - 354nm -> 520nm. 20 sec of overboost would cover almost any conceivable situation where you require to use WOT. I wonder how it works in practice. |
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Feb 12th, 2019, 15:49 | #50 |
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Smth wring with their numbers. Stock engine peaks at 500 torques.
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