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F10 / F11 (2011 - Current)
The new chapter in the highly successful story of the BMW 5 Series Sedan (F10) and wagon (F11)

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  #1  
Old 03-04-2016, 03:11 PM
esmith esmith is offline
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Location: San Diego
 
Join Date: Aug 2007
Posts: 47
Mein Auto: Vette
N63 tuning

I have '12 550i (N63 engine) with DINAN stage 4. As I understand, that's is just a single firmware version that is optimized for the presence of their intake and exhaust, with no adjustable parameters.
Suppose I do some other upgrades, e.g. bigger turbos, or I just want to tweak the map to give more boost. What are my options? I'm guessing DINAN must go. I see a few other companies making similar products (ESS, Burger) but it's not clear which one I need. Burger has something called "JB4" which sounds a lot like what I need but I don't see it available for N63 (they do have it for S63 / F10 M5).

And more generally, what are my limitations hp-wise? It looks like S63 can go to 700 hp with stock heads, cam and pistons. (Incidentally, is there any reason why no one seems to bother with cam swaps in BMW world? In LS1/LS3 world, stock cam is pretty much the first thing to go.) Any reason why N63 can't do same? Do I need to upgrade the clutch pack or the torque converter?
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  #2  
Old 03-04-2016, 03:47 PM
550ix 550ix is offline
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Location: Misery (MO)
 
Join Date: Dec 2013
Posts: 459
Mein Auto: 550i xDrive
Call Dinan. These are not LS3 or LT1s
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  #3  
Old 03-13-2016, 09:45 PM
msportf10 msportf10 is offline
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Esmith, do you have any concerns tuning the n63? With yours being a 2012 there's the CCP/recall issue. I have the same - 2012 550i - and I've hesitated tuning this car. Thoughts?
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