 | Home > Td5 > Black box??? |
 
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| mwestcrew Member Since: 09 Dec 2019 Location: South Warwickshire Posts: 216   
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I’d say that was more likely to be a speed limiter. Has your vehicle got any history of being owned by a utility company or similar? 2011 130 Utility Body
2005 110 Van |
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13th Dec 2020 12:11pm |
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| CRJ Member Since: 12 Mar 2011 Location: Sealand - Denmark Posts: 253  
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Not that I know of? I have not been above 135 kmh - but I am sure it Will go further... but not before clutch and flywheel is changed.... 88 Ser. 3 1980 -sold
Puma 130 - 08- sold 90 200tdi 1991 - sold 88 Ser. 3 1977 200 TDI 110 CC 2003 |
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13th Dec 2020 12:29pm |
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| TJ101 Member Since: 30 May 2007 Location: Taunton Somerset Posts: 3747  
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99% a tuning box of unknown origin Ie a early PSI Tuning box maybe
A crude was of tricking the injection timing and getting more power Were all the rage,a few years ago,, ditch it and get a proper map done if you need a tune California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1 Main Brian James Trailer Dealer for South West UK |
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13th Dec 2020 8:07pm |
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| CRJ Member Since: 12 Mar 2011 Location: Sealand - Denmark Posts: 253
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I Think you are right - it pulls Like a train when you floor it......and deliver a smoke screen as well... 88 Ser. 3 1980 -sold
Puma 130 - 08- sold 90 200tdi 1991 - sold 88 Ser. 3 1977 200 TDI 110 CC 2003 |
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13th Dec 2020 8:41pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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It could be a PSI or like tunung box.
A proper tune might be better but these are not that bad either. I have one and I like it. Simply said it will keep the injector open a little longer to get more fuel so more power. However simply seen does a tune the same. A PSI power box does not change sensor signals so the safety features from the ecu still work. The only thing I didn't like that it starts working at around 1300 rpm and that happens to be in the rpm range that I use in town. I have it now installed behind a voltage sensing relay and it only works when I have about full throttle. So don't ditch it directly. 
There are jumpers inside where you can adjust the power with. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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13th Dec 2020 8:44pm |
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| CRJ Member Since: 12 Mar 2011 Location: Sealand - Denmark Posts: 253
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Thanks... I Will take a look at it... As long as i dont floor it - there is no smoke.... but full throttle is Black smoke and lots of it😅 88 Ser. 3 1980 -sold
Puma 130 - 08- sold 90 200tdi 1991 - sold 88 Ser. 3 1977 200 TDI 110 CC 2003 |
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13th Dec 2020 9:25pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7687 
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The psi box i ran on a vw looked very similar, except it was blue! Rectangular, rounded corners, fixings the same. My guess is turning box Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Dec 2020 11:00pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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Open it and show us the inside.
 Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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14th Dec 2020 6:44pm |
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| kzycnn Member Since: 24 Apr 2009 Location: Northumberland Posts: 276 
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I would concur - tuning box. I would also concur with TJ101 - ditch it and get a proper tune. When I bought my TD5 it had something similar fitted. It would get to a point in the throttle movement, hesitate as if briefly going into limp mode and then accelerate like
 It was scary! My son loved it  . Ditched it for a few beer tokens and had a proper BAS tune installed - made a huge difference!
Tony |
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16th Dec 2020 10:33am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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This is funny the opinion here is all tuning boxes are ****. However there is like in "proper" tunes a lot off difference.
The only way you get more power out off a td5 is to open the injectors longer. If you don't do that you won't get more power. To make most off the extra diesel you might need to do more like increasing the turbo pressure and probably an intercooler etc. But that is not included in a tune either. Yes I did some research and I think that the psi power boxes are probably the best in the market and in my eyes the only right way to do it for a tuning box. Just keeping the injectors open longer not changing sensor values like some other boxes do. I don't have any hesitations or going into limp mode. So I suspect kzycnn had a very cheap version. In Mr Zulu mode I got some black smoke but by removing the restrictions in the airinlet before the airfilter and increasing the max turbo pressure to 1.3 bar it is within limits for the Dutch MOT. Normally I switch it off before the MOT only the last time I forgot.  Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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16th Dec 2020 11:29am |
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| kzycnn Member Since: 24 Apr 2009 Location: Northumberland Posts: 276
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My tuning box was Austrian - can't remember the make, off hand - it was about 15 years ago! The BAS tune made the whole thing much more drivable which, really, with a Defender is what it's all about.
Tony (kzycnn) |
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16th Dec 2020 11:55am |
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| CRJ Member Since: 12 Mar 2011 Location: Sealand - Denmark Posts: 253
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Here you go... I am a bit 🤪 about it??  88 Ser. 3 1980 -sold
Puma 130 - 08- sold 90 200tdi 1991 - sold 88 Ser. 3 1977 200 TDI 110 CC 2003 |
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20th Dec 2020 2:36pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16879 
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Hmm, a box of potting compound! That is keeping its secrets well.
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20th Dec 2020 7:36pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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On the right lower are some jumpers like the psi powerbox but AFAIK mine looks different.
On the lower side is a sticker with the serial number is there a brand name mentioned? Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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21st Dec 2020 7:40pm |
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