05-10-2016, 03:37 PM | #23 |
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Nope, I don't. You need a higher flowing downpipe ($700-$800) and charge pipe ($280) before going to a bigger turbo. Just do some google searches for Pure Stage 2 and N55 and you'll find plenty. Our engine's the same one in the 135i/335/535i.
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05-11-2016, 07:10 AM | #24 | |
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ive got a catless downpipe right now and a diesel x5 dual snorkel intake... this is very interesting.... |
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05-11-2016, 07:43 AM | #25 |
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Yes, Pure Turbos Stage 2 looks very interesting indeed. People say you need more fuel to take full advantage. Does anyone make meth kits or port injection kits for the X5? I haven't seen any.
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05-11-2016, 02:27 PM | #26 |
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05-11-2016, 02:58 PM | #27 |
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It's alright. I may be asking the question wrong as I was being lazy. I've read from the 1 and 3 series people that the stock fuel injectors limit the maximum potential of the stage 2 turbos. Only way I can think of to get more fuel to increase the power is the add port injection or a meth kit which are popular with the 1/3 series folks.
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05-11-2016, 03:51 PM | #28 |
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port injection is easy, as is meth. Even better when you do either, is that your valves will be super clean since this goes through the valves into the engine, solving the headache of DI and walnut blasting.
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05-11-2016, 06:12 PM | #29 |
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More injectors mean more failure points. And the injectors of most meth kits, I wouldn't want on a bottle of windex, much less my car, never mind another computer to attempt to control it all.
Seen too many posts where a meth'd car got hydrolocked and have heard horror stories from some notable tuners. Not worth it for a street car if you care about reliability, much less a car like the X5. Still is fascinating that BMW tuning in 2016 is where WRX and evo tuning was in 2004, with cheap meth kits everywhere as "the way to go" for more power. Nowadays with those cars, it's just E85 conversions (fuel pumps/injectors) with no additional injectors/failure points and the factory ECU in full control if you want more reliable power. I just did another quick run in the X5. With a 2.1 second 60-foot, I ran a 5.3 second 0-60. A Pure Stage 2 with a downpipe will likely run, if launched, a 4.5 second or so 0-60 while maintaining fuel economy. If you really want more than that, you're better off going V8 and dealing with the factory headaches there rather than creating your own through a port or meth injection kit. Never been a fan of piggyback computers that trick what the factory ECU sees. Never will be.
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05-12-2016, 11:53 AM | #30 |
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I disagree with you. AEM, AquaMist, Snow are all brands that have implemented failsafes of varying degree, that didn't exist in the early years of those cheap meth kits and DIY kits.
They are also boost based, and only turn on when you're boosting, and then your Protune can either be tuned against it (More advanced timing, etc), or at times, the ECU can compensate alone for it when it's empty (the case with my Ford Ecoboost engine) People only remember the bad things, and never what has changed, or the successful implementations. BTW, it's not windex... |
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05-12-2016, 12:18 PM | #31 | |
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If it's a long-term daily-driver car, adding unnecessary complexity is a good way to say goodbye to most of your disposable income. For a track car, that's another thing entirely. For the X5, if max power is the primary concern, turbo V8s are available in this application, while they're not on the 1 and 3-series platforms. Money is better spent on a 50i or a X5M than going stupid with injectors and cheap computers with Radio Shack wiring on these cars. For a decent power boost, a downpipe/turbo/real protune would make most folks happy. I'm quite happy with just my tune.
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05-12-2016, 03:26 PM | #32 | |
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05-12-2016, 10:47 PM | #33 | |
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05-13-2016, 08:09 AM | #34 | |
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Back to the original subject, I ordered an Accessport yesterday. Can't wait for it to arrive and test it out! It's suppose to work with the JB3 but I don't think I'll be running both. |
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05-13-2016, 08:17 PM | #35 | |
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05-20-2016, 11:01 AM | #36 |
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is there anything i can do with a 2013 X5 3.5i? I have the BMS stage 1 and its kinda hit or miss. Definitely an improvement over stock, but sometimes the boost just isn't there - you can tell its tricking the system. I want to stick with this X5 because I like the mechanical steering and, even though its a truck, it still feels tighter than the electric 3 series i get as loaner cars.
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05-20-2016, 11:08 AM | #37 | |
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05-20-2016, 02:53 PM | #39 |
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ER makes a F15 charge pipe that fits the E70. They also, I believe, make the downpipe as well. The Catted DP goes for about $900 or so.
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05-20-2016, 04:52 PM | #40 | |
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food for thought..... |
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