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Found 5 results

  1. Hi all, long time no post... Anyway, short story version. I went to look at an E61 530i Touring 6 Speed Manual 2007 LCI (269bhp) 110k miles 2 owners (mostly London commuting), plus a few extras from factory etc. Test driving and noticed a funny low end noise, I thought it was bottom end but later (after shooting the video) I realised that the knocking went away when the clutch was pressed in. That led me to Dual Mass flywheel issues but I don't know or what specific mechanisms are envolved or how they are malfunctioning (spring weights etc.). Most noticable heavy knocking on tickover and just after a little rev. Put the clutch in and it goes away. I thought the top end was a bit tappy, more than I would expect and I could detect the engine slightly rocking around. Is this normal for these tuned 530i LCI 2007 onward setups? Can any of you guys have a listen a see what you think, enlighten me? It goes well but this is the first 530i I've test driven. Booted it in 2nd n 3rd and noticed the performance below 3k RPM quite average, though I've never been that impressed with low end torque from BMW 6 cyl petrol engines. Up through 4k RPM and the magic starts to really happen, building nicely until I bail out at 6k RPM. Edit: Since found this useful informative video: Buying a used BMW 5 series E60, E61 - 2003-2010, Buying advice with Common Issues
  2. V_MAX

    116% Larger Fuel Injectors

    From the album: My 523i Conversions and Maintenance

    I had somewhat maxed out my fuel injectors A/F, they where the (green) Bosch (0 280 150 415) capable of 124,32g/min, therefore I replaced them with the larger; Bosch 0 280 155 830 (blue-grayish) these are newer type EV- 6 injectors without an interchangeable pintle cap, as you can clearly see on the picture. The new 830 fuel ejectors fit perfectly in the fuel rail and need no modifications. The 0 280 155 830 injectors are capable of 269,61 g/min, or 116,87,% higher fuel delivery capacity than the original small ones (mainly used on ..23 models) that I had. It goes without saying that remapping the ECU is mandatory sins the 830´s have a capacity of so much more fuel delivery and different latency timing. This is where "MS41 Quickflash", "RomRaider", "MLV" and “MS Excel” come into play, to remap the ECU´s bin. files by starting with a reduction of these files by 53.88% of the original bin files, sins the maps where written for smaller capacity Injectors. From that point we can start to fine tune. There is no need for a higher capacity fuel pump if the one you are using is in a good state. The message is; do not change to higher capacity fuel injectors in hope of getting more horses out of the engine, it does not work that way, it only drowns the horses you had and all the emission rules and regulations will be broken due to all out of whack A/F ratio, so no MOT. In most cases the standard injectors that came with the engine are more than adequate of delivering enough fuel, despite some minor tuning. Larger capacity injectors apply if you are going for a turbo or compressor or as in my case; larger cams, m50 intake manifold, modified air intake, headers, free flow exhaust and a rather small fuel injectors to start with, with delivery capacity of measly 124,32g/min, and still, they "might" have worked out, but they where the older type of injectors that were all worn out and uneven and mostly, I wanted to have more buffer on the tuning when I install a compressor or turbo. If you are going to do this modifications with larger fuel injectors; you HAVE to remap the ECU, there is no way around it. I would recommend, that the ECU should be remapped/tuned by someone who knows what he or she is doing. You can just let it be as is, with the standard tuned ECU with only the M50 manifold swap and the current fuel injectors and you will get some adaptation up to a certain point from the ECU, but not the full benefits as by remapping of the ECU accordingly to the new larger intake manifold. You can read more about the camshafts replacement in my portfolio with picture; "Hotter Camshafts = More Power" & "One Of The Most Overlooked Mantenance The "Valve seals"
  3. Hi I'm getting a 2005 530d turbo for my 2005 525d at the weekend and the question I have is can I leave my 525d injectors with the 530d turbo or do I have to upgrade to the 530d injectors and if so whats the difference in the 2 sets of injectors and do they need coding
  4. amebb

    Misfire mystery

    Hi, can anyone help me with this issue I am having on my car. I checked the error codes and I can up with this... P0300 - RANDOM MISFIRE P0303 - CYCLINDER 3 MISFIRE P0130 - O2 SENSOR CIRCUIT (BANK 1, SENSOR1) P0304 - CYCLINDER 4 MISFIRE So, I removed ignition coil 3 and 4 replacing them with working units. I started the car and it sounded ok but, still the error code popped up. The engine was still misfiring and the drive was lacking power, nothing brilliant. (PREVIOUSLY.... A FEW MONTHS AGO I REMOVED THE INJECTORS AND CLEANED THEM, REPLACED SEALS ETC. ) Could there be an issue with injectors 3 & 4 causing a misfire? If anyone can assist me solve this matter I would really appreciate it. Thank you Car ... BMW 540i automatic, saloon. Thanks
  5. Hello, My first post on here. Not sure if this topic has been raised before but I did a search and could not find anything. I have recently bought a BMW 5 series 2.0D M Sport on a 57 plate. It has the N47 engine. I have now noticed oil on the drive and obviously have an oil leak. As part of my investigation into this I cleaned a lot of the oil away and found two loose jubilee clips on an oil pipe which I tightened. The leak is still there. However, when I was topping the oil up I removed the plastic cover above the engine and noticed oil or maybe fuel sitting in the recesses where the injectors are fitted. At first I thought it may be diesel from the leak off pipes but could not see any leak. When I dipped my finger into it I thought it was more likely to be engine oil as it did not smell of diesel and had the consistency of engine oil. This is a really strange place to find it. I did think perhaps a previous owner had topped the oil up but was less than careful and his was likely to be the source but I cleaned as much of it out as i could and it seems to have returned. I have attached a couple of images and am interested in any help any of you can give me. In addition, does anyone have any suggestions on common areas where engine oil is known to leak on these engines. Cheers Barry