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BMW 3-Series (E90 E92) Forum
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jb+ question
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04-18-2013, 10:55 PM | #1 |
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jb+ question
Can people who used a jb+ on their cars please give me some feedback. I tried searching and got very limited answers. I own a z4 35i dct, there are barely any people with z4 and jb+ to give any useful opinions. I plan to use it at 50 percent or even less, if that's possible. I'm very happy with the power of this car but a little more torque is always nice. What is the general consensus regarding experiencing codes when using at 50 percent? Any info, personal experiences would be greatly appreciated.
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04-19-2013, 01:13 AM | #2 | |
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04-19-2013, 09:04 AM | #3 | |
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Thank you very much for taking the time to answer. During that time, did you have any codes or issues during those multiple dealer visits.? |
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04-19-2013, 01:20 PM | #4 |
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04-19-2013, 05:18 PM | #5 |
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I ran it for about 6months at 50 and 75%. Zero issues or codes and it really transformed the car. I loved it and before switching to cobb and running ethanol. Best bang for your buck mod I have ever seen on any platform.
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04-19-2013, 08:48 PM | #6 | |
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Awesome, thank you for your input. I hope it will be ok with the dct. Where there any issues on longer drives, example 3 hours of driving with a couple of wot pulls? |
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04-20-2013, 03:49 PM | #9 | |
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I've also got mine for sale for $120 shipped if anybody is looking for one |
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04-20-2013, 04:32 PM | #10 |
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None.... and I would do more than just a couple WOT runs. Only thing I would say is make sure you change your plugs if the have more than 20-25k miles and be prepared to replace a coilpack or twoas they go. Other than that (which is really just regular maintnance) just plug it in and enjoy.
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04-20-2013, 04:49 PM | #11 |
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How many horsepower do you get from a jb+ at 100%? Do you adjust the percentage from a computer? When you unplug it does it go back to stock?
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04-20-2013, 08:35 PM | #12 | |
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About 50-60whp at 100% You adjust on the unit itself. There is a manual dial. Yes it goes back to stock. Do a search. You will find plenty of info on it or go to the bms website.
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04-22-2013, 09:18 AM | #13 | |
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Once again, thank you for the informative reply. I assumed the spark problems were taken care of for the n54 after 2011, no? My z4 is 2012 but i have 12,000 miles on it, it would be to early for them to be change any right? |
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04-22-2013, 10:16 AM | #14 |
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Never too early to replace them. But BMW suggest 45k miles so I wouldn't waste the money on new plugs unless you're getting misfires. Goodluck
And you'll definitely enjoy the extra HP the Jb+ will give your car. I had a Jb+ for a few months and i loved it. but wanted more control/features so I went with jb4 Like others have said its definitely the best bang for your buck. |
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04-22-2013, 02:42 PM | #15 | |
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04-22-2013, 03:19 PM | #16 | |
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04-22-2013, 05:13 PM | #18 | ||
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04-23-2013, 11:53 AM | #19 |
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No way, even at 50% ??????? from every forum, thread or comment i have read regarding the jb+, i have only heard people mention codes being thrown at 75% or above, never at 50%. thanks for letting me know, this was vital info that i never knew about.
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