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| Xoutpost server transfer and maintenance is occurring.... |
| Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
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#11
10-22-2015, 08:39 PM
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We have decided to offer a promotional price of $700 for the Xoutpost members until the end of the year. Regular price is over $1k. The price includes SW update to the newest version for the DDE. By customer request some DTC can be deleted and would not appear. I also offer spare keys programming with this service-$100 for a regular and $150 for a CA key. I also plan to get the proper sponsorship to Xoutpost very soon. Please use PM for specific inquiries. Stage 2 almost completed with 400+hp and 520+tq. X5 is a beast, I am almost scared to drive it 
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#15
10-26-2015, 02:16 PM
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The idea of "TRF Stage 1" is for the engine to remain as close to stock as possible, bumping the power while improving the torque curve over stock significantly. Even though the absolute numbers are not huge, the change is impressive. In the finalized and extensively tested variant the changes dont cause problems with the engine and mostly DPF and the regeneration. All engine's fail safes and monitoring is unchanged and even if a problem occurs the DDE will take action or trigger a code. In other words, one will be able to give the X5 to his wife or daughter for a long time and be sure nothing bad will happen because of the tune. We will probably offer "TRF Stage 1.5" where there will be more power added, but some caution has to be exercised. If you race from light to light at full tilt every day and drive the car on a short distances some regeneration problems may occur. Many owners dont know, but there are 2 types of DPF regeneration-active and passive. Active is the one triggered by the DDE when certain conditions are met. Passive is when the engine has been at partial or full load for a prolonged period and the temp in the DPF rises enough so that the soot will start to burn. Just an interesting fact is that the Le Mans winning Audi diesels dont use active regeneration, only passive.
"TRF Stage 2" is all Stage 1 isnt. Generally it is ALL OFF. SCR doesnt have to be removed, it can remain and in working condition. Main idea behind removing the DPF is removing the backpressure behind the turbos. This completely changes the character of the engine and brings it very close to a gas engine. As a matter of fact, it is now pulling very hard to 4600 RPM and if we can delay the upshifts with another 500-600 RPM it will still be strong. But this power level will not be possible at all with all emission stuff still installed. If pushed too much, problems with the DPF will occur very soon. I was thinking about an exhaust cutoff but everything is very crammed down there. Perhaps some kind of internal bypass tube cam be constructed with an electric actuator. Or one can just empty the DPF and leave it installed, this is what I did with a flooded DPF I had laying around. Removing the EGR is not required, but at the rate they crack and the price it will be economically sensible to remove it or just leave it there, but close the exhaust side. Most limiters were changed and some tables re-calibrated for stage 2, but the most important tables for the torque calculation and injection quantity/times were not recalibrated. In our modern DDEs all internal calculations are based on air and fuel per stroke. According to the internal calculations, in stage 2 we have over 720nm at 2200-4000 RPM (around 540 ft/lbs) and over 430hp at 4200 RPM. It feels we are starting to reach some limits of the fuel system when we try to push even more, so probably it will be finalized at 420HP/520TQ. We plan to have it tested for a few months on 2 cars and release it sometimes next year. DPF inside: 
Last edited by bawareca; 10-26-2015 at 08:12 PM.
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#16
10-26-2015, 02:17 PM
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#17
10-26-2015, 02:32 PM
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P.S. Looks like advertised time for stock X5 35D is 6.9 secs 0-60. Last edited by bawareca; 10-26-2015 at 02:49 PM.
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#19
10-26-2015, 08:21 PM
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Here is a short video for some viewing pleasure https://www.youtube.com/watch?v=H020...ature=youtu.be It cannot be timed precisely because the car was rolling a bit before I let off the brakes, but looks right under 6sec 0-60.
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#20
10-27-2015, 11:30 AM
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Stage 2 looks exciting.
__________________
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
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