08-02-2014, 06:20 PM | #1 |
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JB4 stage 1?
Realistically, how much power to expect with JB4 stage 1, AFE intake, ER charge pipe, free flowing Catback (GThause super GT exhaust -no mufflers) on a 2014 335 XDrive? All on 93oct
Could I hit 330 - 340whp without going to a ER DP? Does a charge pipe even add any power? Tried searching but not much came up. TIA |
08-02-2014, 07:35 PM | #2 | |
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A chargepipe won't add any power. |
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08-02-2014, 07:58 PM | #3 |
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Or...for nearly the same money as the assemblage of parts that you mentioned, you could get 335 bhp with the MPPK, keep your warranty, and enjoy a comprehensive factory-engineered solution.
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08-02-2014, 08:19 PM | #4 |
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I'm confused. Are we talking about the JB4 on map 1 or the stage 1 plug n play and not the JB4? I just got my 335i M sport a few weeks ago so I'm catching up on the tune options.
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08-02-2014, 08:21 PM | #5 |
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08-02-2014, 08:26 PM | #6 |
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I'm under the assumption he means the Stage 1 plug-n-play, although power level of that and the JB4 on Map 1 will be very similar.
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08-02-2014, 09:33 PM | #7 |
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Why would you say that? BMW quotes 300 horsepower (at the crankshaft) for the stock engine. It claims a 35 horsepower increase for the MPPK. 300 + 35 = 335. "bhp" is the same thing as crankshaft horsepower. Why do you believe that I misspoke about a 2014 MPPK-equipped 435i is claimed to make 335 bhp? Seems completely factual. You were referencing rwhp; I was referencing gross horsepower - and - clearly depicted it as such.
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08-02-2014, 10:09 PM | #8 |
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I think he meant because the OP is looking for 400 BHP (340 WHP w/15% drivetrain loss) and you suggested a 335 BHP solution. Quite the difference in power.
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08-02-2014, 11:15 PM | #9 | |
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Mppk is nice and all, but for the power it gives, or lack there of, and price, I feel there are other better alternatives which would be just as reliable and wouldn't add any more stress on the motor, such as the jb4 stg 1. Now if you're talking custom maps and mixing fuels, that im not comfortable with. |
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08-02-2014, 11:27 PM | #10 | |
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The Stage 1 is great. If it had the ability to clear codes, I'd personally chose it over the JB4 since I'll only run 91, but I also want to use a downpipe (and the only way to defeat the CEL is with a JB4). Different maps and mixing E85 certainly opens a new can of worms and this is where some run into issues. With even BMS reporting that the F-Series and E85 don't get along too well, I won't bother. Frankly, I wouldn't run E85 unless the entire fuel system was prepped for it. Also, one issue many run into at higher levels (Map 5 or 7) is the fuel pump(s) not being able to keep up, kicking the car into either limp mode or having the JB4's fail-safe revert into safe mode. People see these issues and get scared off citing problems with the JB4, when in reality, Map 1 or 2 would be a great daily solution, and the ability to push it further with other setups isn't even on the table so they can't really compare. |
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08-02-2014, 11:48 PM | #11 |
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You make some good points. Ultimately ill do a ER DP and jb4 map 2 and call it good. Loving the car so far though. Cant wait to put a few hundred miles on it and then place the order for the go-fast goodies.
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08-03-2014, 09:15 AM | #12 |
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a 2014 335I with MPPK on three dyno runs averaged 305 RWHP and that is a fact - stock most 335 have between 270 and 280 RWHP and again you can find that information on most forums - A stage one with no other mods will get you slightly more than a MPPK - one dyno run I saw as 310RWHP - So then it is your call - I can only say I have a stage one and several of my posts on here with 1/4 mile times show the real difference - It takes 10 minutes to install and I have had the car in for a couple minor recalls with not problems.
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08-03-2014, 12:41 PM | #14 |
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There is no such thing as a JB4 Stage1. There is a JB4 and there is a Stage1 tune. They are different products. The JB4 has various maps all of which are stronger than the Stage1 single map.
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08-03-2014, 04:20 PM | #16 |
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Mike, thank you for the clarification. I was referring to a basic stage1 vs the mppk. But in reality i know I will do the ER DP, so a JB4 map 2 would be required from what I've gathered in order to clear the CEL.
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08-03-2014, 06:39 PM | #18 |
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There is no JB4 Stage 1 or 2. There is a stage 1 and a JB4. The JB4 map 1 is about 12.5 max boost and that is a little more then the stage 1. About 15 hp difference. JB4 map 2 has a max of 14 pounds of boost.
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08-03-2014, 08:28 PM | #19 |
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Read this and then reread my reply #3 to this thread: http://f30.bimmerpost.com/forums/sho....php?t=1017184
You have a 4 years of factory protection on your new car - don't do anything silly with a piggyback without a warranty. |
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08-04-2014, 11:44 AM | #20 | |
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An intake should add another 10whp.
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08-04-2014, 12:15 PM | #21 |
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08-04-2014, 12:23 PM | #22 |
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it does not say but pretty sure RWD.
Its going to be tough to find official numbers done on a AWD
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