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Waiting to buy a XEDE because...
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12-28-2006, 08:43 PM | #45 | |
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12-28-2006, 08:53 PM | #46 |
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I guess if the switch is meant for fuel conservation, then it makes sense. Otherwise, I dont see the point to having it.
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12-29-2006, 12:02 AM | #47 | |
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12-29-2006, 12:58 AM | #48 | |
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I do agree it is easier to transfer the Xede to other vehicles than DME software. Matter of fact, due to EWS, DME software transfer between vehicles, even of the same family, is impossible. And since Shiv is in this thread, I would like to ask him or any Xede owners a few honest questions: When you remove the Xede from a vehicle for which the DME has long term adaptations in place to operate with the altered signals, how long does the car take to return to stock or near stock adaptations once it is pulled? What is the drivability like during this re-learning phase and what is the long term effect of removing and replacing the Xede on a regular basis, say for service or warranty work? Finally, since modifying the mass air signal also presents a different load to the DME than the engine is actually producing, how do you update the internal operational parameters such as automatic transmission shift load shearing, cylinder head heat management modes, VANOS blowthrough allowances, high pressure fuel supply control, multiple ignition event mapping, and others that are directly dependant on the load input for which the Xede alters from reality? These are not attacks, even tho surely some will always assume so. Just my technical curiosity towards something new. |
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12-29-2006, 01:07 AM | #49 | |
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12-29-2006, 01:25 AM | #50 | |
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Cheers shiv |
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12-29-2006, 01:28 AM | #51 | |
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And I never knocked Vishnu, I just responded to the OP of why would I wait on the Xede. Read again. |
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12-29-2006, 01:37 AM | #52 | |
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I agree that most tuners have little to no grasp of modern BMW Motor Electronics, never seen a DAMOS or A2L file, nor deciphered the actual code contained within. But there are a few that have and I am waiting to see what those results are before I jump to a solution for tuning the 335i. There is always more than one option and I love to compare. Makes for informative debate where everyone learns. I'd like to hear your answers to the questions above tho; I am interested in your thoughts and/or trials regarding them and the Xede in a BMW application. |
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12-29-2006, 08:35 AM | #53 |
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FWIW, in the sportbike tuning world, piggyback computers are the norm and have been for the last 10+ years. Most are made by Dynojet, but other tuning/race companies like Yoshimura have them as well. In fact, other than factory racer cheater boxes that you have to be a sponsored factory racer to have on your bike, I don't know of anyone who produces a replacement chip.
So, I for 1 am very comfortable with the piggyback concept, in fact more so than the replacement. Every race bike (at least every expert and pro) had one tuned to the mods on that bike. |
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12-29-2006, 05:54 PM | #54 |
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I am having fun almost everyday. No problems so far.
Wait for what? Shiv will give free updates on software and the solenoid bypass is removable. My Poor tires, Sam
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01-01-2007, 03:36 AM | #55 |
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Using a piggyback is the only realistic way to go for this sort of tuning, messing with the OEM computer is a very complicated buisiness, best left to the OEM. The amount of equipment, knowlege and time required to make the correct changes to the factory settings makes it far more costly to do, and the end result will be no different from what the xede does.
Also as soon as you mess with the ECU it will be goodby warranty for sure. I know the likes of Dinan etc will eventualy come up with a re-flash, but it will take them a long time to get it right, and will be expensive. By then I am sure the xede will have proved itself to be the best solution (it prety much has already) |
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01-01-2007, 04:56 AM | #56 |
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And who says we're done with development?
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01-01-2007, 08:23 AM | #57 | |
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Being new to the BMW world, but 6 years with an APR-chipped Audi S4, I'm familiar with the risk/reward of chipping your car. Loved my S4, but not as much if I didn't chip it. The fear of blowing the S4 turbos was finally what made me give it up (in fact, one turbo was 'loud' after a throttle body boot tear -- for 30K miles. A ticking time bomb). What kind of numbers would you guess you can get out of the 335i *without* increasing boost? For example, one Audi tuner torque-limited their chip to 310 ft/lb, due to the rated limit on the tiptronic transmission. I, of course, ignore that chip, and went for the APR producing 388 ft/lb. After 60K chipped miles (100K altogether), my tranny fluid was fine. But, for those of us who would be *very* interested in the Xede, but would want to start at a 'safer' level, and since the Xede is end user software upgradable, I know that I would be *very very* interested in being able to switch between a 'stock', a 'more power', and 'a lot more power' mode (I don't care personally about an internal switch. connecting the laptop to change for a winter setup compared to a summer setup is fine with out). Thanx in advance for any reply, and, for goodness sake, stop reading these forums and take some time off! Its New Years!! -Dave |
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01-01-2007, 11:50 AM | #58 | |
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In addition to pre-delivered "base" maps, you could modify any parameters the software allows and make your own maps. No extra boost wanted? What are you just going to mod A/F and timing? If so, I'd guess the gains would be in line with chipped non-turbo cars...~10hp or so. |
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01-01-2007, 06:28 PM | #59 | |
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Cheers, shiv |
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01-01-2007, 07:19 PM | #60 | ||
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I'm not knocking the Xede system. I am presenting another view that some may or may not want to express. Challenging a solution only brings about the true R&D that went into it. Vishnu has been in the Evo/WRX world for a good while, but is very new to BMW. And while the Xede has been very successfully used on Mitsu and Subis, BMW DME operation is vastly more complicated than either one of them and should be handled carefully and correctly. My inquiries validate the actual results as being as advertised and safe for the long term for everyone. I myself surely don't want a product that doesn't last, doesn't act as advertised, nor damages my car. Do you? Finally, BMW doesn't warranty Dinan software at all, Dinan does. The future of 335i tuning will be a very hot topic for a long time and there will surely be many solutions. Until that time, noone knows what the best solution is. As of right now, the Xede is the only option, good or bad. |
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01-01-2007, 07:33 PM | #61 | |
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Furthmore, I wouldn't discount the Evo, Subaru, Honda or Mazda ECUs to be any less challenging to appease. Each had their share of complications/quirks that needed to be addressed. In many ways, the BMW ecu has proven to be a pussy cat to work with. Sure, there were some surprises along the way but I think we've gotten it under control with the help/feedback of our early adopters. -Shiv |
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01-01-2007, 07:37 PM | #62 | |
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Just remember aftermarket parts dont automatically void a warranty. Read over the Magnuson-Moss Warranty Act of 1975. |
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01-01-2007, 08:03 PM | #63 | |
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01-01-2007, 08:13 PM | #64 |
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To be fair, the hardware of the Xede will be changing soon in order to acheive the new RoHS (lead-free) compliance standards. Everything from its chipset to its board layout will be changed. But for now, the hardware has been unchanged for nearly 5 years.
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01-01-2007, 08:37 PM | #65 | |
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I hate to sound like a fanboy, but I truly respect your approach. It has class. I don't want my car boosted to the max by some idiot. I like everything you said above. Very responsible tuning, very intelligent! |
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