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BMW 3-Series (E90 E92) Forum
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JB4 question.
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01-17-2012, 06:32 AM | #1 |
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JB4 question.
For all the JB4 owners out there, running with just the DCI's, and no other mods, which map number do you prefer, I guess the choice is map no.1 or map no.5?
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01-17-2012, 06:48 AM | #2 |
Lieutenant Colonel
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I would run map 5 with shell v power 99 in your position.
You should see similar boost levels to map 1 but it will increase/decrease depending on feedback from the timing. You need to do a few runs in 3rd gear or higher from 4500rpm (I think) onwards for it to adapt. |
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01-17-2012, 06:52 AM | #3 |
Colonel
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Yep map 1 or map 5.
map 1 will boost to 13psi map 5 will boost anywhere from 11-16psi depending upon conditions and fuel octane. Map 5 felt better to me when I just had DCI, but best to try it out and see what you prefer.. do some logs too. Phil |
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01-17-2012, 04:11 PM | #5 |
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01-17-2012, 04:23 PM | #6 | |
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Quote:
The supplied proprietary lead falls a little short for what I want to do. Last edited by sixpot; 01-17-2012 at 04:26 PM.. Reason: spelling. |
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01-17-2012, 04:45 PM | #7 | |
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Yep, any normal USB extension and your good to go. JB4 doing the business for you ? |
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01-17-2012, 04:57 PM | #8 | |
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Quote:
I'm still not sure about map 5, I've been running this for a month and still find it a bit jerky. |
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01-17-2012, 05:07 PM | #9 |
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Map 2 is for bolts ons but if your not knocking and have no glow codes then your good to go. Keep an eye on your timing in the summer though
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01-18-2012, 12:59 PM | #10 |
LSD - No, you're not seeing things
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I found 2 was fine and also more predicatable overall.
On the RR there was little difference in output, just the way it feels to be delivered.
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01-19-2012, 03:01 PM | #11 |
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I should add that although I prefer map 2, I only run it in short bursts, when I'm showing off etc.
I normally run map 1 day to day. Anyone that I take out says that with map 2 you get pushed back in the seat harder |
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01-20-2012, 02:27 PM | #12 |
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Got the Catted and kitty less AR DPs in stock. You can run MAP 2 all you want
Last edited by neil@JuicedUpTuning; 01-21-2012 at 08:21 AM.. |
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01-20-2012, 03:06 PM | #13 |
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01-20-2012, 05:38 PM | #14 |
Colonel
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Bout 3-4 hours.
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Car: e91 330d with Viezu map
Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft) |
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