quick JB4 question

510135 · 02-07-2012, 04:02 PM

Many Thanks
Nik

1q2w3e4r · 02-07-2012, 04:16 PM

From the (little) reading etc that I have done they do run leaner due to direct injection. There are plenty with far more knowledge who will chime in.

BFD99 · 02-07-2012, 04:23 PM

You will be safe on either, I've run, Maps 1, 2, 5 & 7 on my car with only intakes, probably not recommended but I've done it, for the last 10,000 miles or so. And yes being Direct injected these thing do run way leaner than normal turbo cars.

BBK · 02-07-2012, 05:00 PM

I'd go map1, but map 5 is fine too. Best bet would be to log some runs with both maps, and see what they are like.

alik01 · 02-07-2012, 05:31 PM

Quote:

Originally Posted by BBK

I'd go map1, but map 5 is fine too. Best bet would be to log some runs with both maps, and see what they are like.

Please excuse the ignorance, but what exact information does logging provide?

BMW86 · 02-07-2012, 06:01 PM

Map 1 and 5 are both safe. I suggest running map 1 as I'm not a fan of the auto-tune map as it's conservatively tuned. Each time you switch from map 5, the auto-tuning memory resets too.

I usually run Map 1 when it rains

BBK · 02-07-2012, 07:33 PM

Quote:

Originally Posted by alik01

Please excuse the ignorance, but what exact information does logging provide?

All sorts of info, some useful, some not. But I'd just be looking at boost and timing as he has no other mods. You'll be able to tell a) which one is safer and b) which one makes more boost with the fuel you're using.

Then I guess it's up to the user to decide which map to use depending on what they are happy with

alik01 · 02-12-2012, 08:13 AM

Quote:

Originally Posted by BBK

All sorts of info, some useful, some not. But I'd just be looking at boost and timing as he has no other mods. You'll be able to tell a) which one is safer and b) which one makes more boost with the fuel you're using.

Then I guess it's up to the user to decide which map to use depending on what they are happy with

Thanks BBK! This logging this has long interested me. Seems like some of the guys are getting a lot more out of their cars by understanding them better.

RaihaX · 02-12-2012, 08:20 AM

Quote:

Originally Posted by alik01

Thanks BBK! This logging this has long interested me. Seems like some of the guys are getting a lot more out of their cars by understanding them better.

Is a good way to make sure your car is healthy!

alik01 · 02-12-2012, 08:23 AM

Quote:

Originally Posted by RaihaX

Is a good way to make sure your car is healthy!

Healthy car is always good!

02-07-2012, 04:02 PM	#1
510135 Captain 59 Rep 791 Posts Drives: f32 Join Date: Jan 2012 Location: Earth iTrader: (0)	quick JB4 question Many Thanks Nik Last edited by 510135; 04-05-2012 at 04:30 AM..
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02-07-2012, 04:16 PM	#2
1q2w3e4r Breakfast at Tiffany's 24 Rep 1,053 Posts Drives: BMW Join Date: Jan 2007 Location: Sydney iTrader: (0)	From the (little) reading etc that I have done they do run leaner due to direct injection. There are plenty with far more knowledge who will chime in.
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02-07-2012, 04:23 PM	#3
BFD99 The Stig! 54 Rep 889 Posts Drives: 2008 135i 6MT Join Date: Sep 2011 Location: Tulsa, Ok iTrader: (1) Garage List 2008 BMW 135i [10.00]	You will be safe on either, I've run, Maps 1, 2, 5 & 7 on my car with only intakes, probably not recommended but I've done it, for the last 10,000 miles or so. And yes being Direct injected these thing do run way leaner than normal turbo cars. __________________ 2008 135i - FBO + JB4 15ohm + Water Meth
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02-07-2012, 05:00 PM	#4
BBK Banned 88 Rep 3,070 Posts Drives: A boring one... Join Date: Oct 2008 Location: Australia iTrader: (0) Garage List 2009 BMW 135i [5.76]	I'd go map1, but map 5 is fine too. Best bet would be to log some runs with both maps, and see what they are like.
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02-07-2012, 06:01 PM	#6
BMW86 Major General 398 Rep 9,156 Posts Drives: RS3 Sedan / Macan S Join Date: Jul 2008 Location: Australia iTrader: (0)	Map 1 and 5 are both safe. I suggest running map 1 as I'm not a fan of the auto-tune map as it's conservatively tuned. Each time you switch from map 5, the auto-tuning memory resets too. I usually run Map 1 when it rains
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