JB4 & DD map?

surf2727 · 02-20-2013, 08:33 AM

I installed the JB4 a couple of months ago the day after I purchased my car (2010 335i) and couldn't be happier. I just had a question regarding what the recommended map selection is for daily driving with only the occasional hard spirited driving? I assume Map 0 and just switch into map 1 or 5 when needed, but I didn't know if the consensus was to just always leave it in Map 5? The car is a CPO for another few years, but I'm still apprehensive about longterm reliability...I notice that under any driving, boost is always higher on map 5 than map 0 which I assume would lead to a decreased turbo life. Any thoughts? And I appreciate the feedback.

n54gte · 02-20-2013, 08:38 AM

Leave it at 5. And you're nowhere near degrading your turbos. theres people running 18-20psi daily

foghat · 02-20-2013, 08:54 AM

Yes. Leave it on map 5. Unless you are running at full boost the entire time you are driving, I don't think you have much to worry about.

BEAR-AvHistory · 02-20-2013, 10:03 AM

Use Map 5 for DD...you cannot just switch to Map 5 for some spirited driving, its takes time to adapt.

E3r2E9r · 02-20-2013, 11:49 AM

Whether your car is a DD or not you can leave it on one map. If you are driving on the highway it has no ill effect.

02-20-2013, 08:33 AM	#1
surf2727 Private First Class 7 Rep 119 Posts Drives: 335i Join Date: Jan 2013 Location: Houston, Texas iTrader: (0)	JB4 & DD map? I installed the JB4 a couple of months ago the day after I purchased my car (2010 335i) and couldn't be happier. I just had a question regarding what the recommended map selection is for daily driving with only the occasional hard spirited driving? I assume Map 0 and just switch into map 1 or 5 when needed, but I didn't know if the consensus was to just always leave it in Map 5? The car is a CPO for another few years, but I'm still apprehensive about longterm reliability...I notice that under any driving, boost is always higher on map 5 than map 0 which I assume would lead to a decreased turbo life. Any thoughts? And I appreciate the feedback.
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02-20-2013, 08:38 AM	#2
n54gte Lieutenant 42 Rep 537 Posts Drives: prius Join Date: Jun 2012 Location: north korea iTrader: (0)	Leave it at 5. And you're nowhere near degrading your turbos. theres people running 18-20psi daily
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02-20-2013, 08:54 AM	#3
foghat Captain 59 Rep 913 Posts Drives: 2008 135i Join Date: Jun 2009 Location: Great White North iTrader: (1)	Yes. Leave it on map 5. Unless you are running at full boost the entire time you are driving, I don't think you have much to worry about.
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02-20-2013, 10:03 AM	#4
BEAR-AvHistory 2020 Z4 M40i - 2022 M4C Convt 3127 Rep 5,264 Posts Drives: 2020 Z4 M40i - 2022 M4C Convrt Join Date: Jun 2011 Location: Raleigh, NC - OIB, NC iTrader: (0) Garage List 1965 COBRA (FFR rep ... [8.57] 2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00]	Use Map 5 for DD...you cannot just switch to Map 5 for some spirited driving, its takes time to adapt. __________________ Kevin Dravit Gray, Black Leather, Moonlight Roof, Red Calipers 2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT
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02-20-2013, 11:49 AM	#5
E3r2E9r Banned 7 Rep 419 Posts Drives: 3 Series Join Date: Sep 2011 Location: NE iTrader: (0)	Whether your car is a DD or not you can leave it on one map. If you are driving on the highway it has no ill effect.
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