JB 3 info

matthewD · 09-30-2008, 10:53 PM

I am new to the forum and did some research but needed some more questions answered. I have a 335i 6sp with prod 6/08. (DME v81). The car runs well with no sub 3000 rpm lag. (drove car with lag - can see a difference) - possible fix at the factory on later prod models?? Anyway, I added a SSTT and can see a nice difference but want more. Will the JB 3 give more appricable gains without secraficing drivability? is it undetectable like the SSTT? Can I run it on shell 91 octane? (best I can get). I am concerned about 13-15 psi boost on the tiny turbos. (well over their design efficiency in my opinion). How about water/oil temps? more power = more heat. Does the tune lower boost in the upper rpm range? does it speed up the water pump when under boost? (aka Dinan tune)?

thanks

sd390r · 09-30-2008, 11:16 PM

http://www.e90post.com/forums/showthread.php?t=175091

read that about the jb3... any more questions you can PM me if you still ahve any

David1 · 10-01-2008, 11:41 AM

The car will actually have more drivability. I wouldn't worry about the water pump feature that Dinan has if that is true.

09-30-2008, 10:53 PM	#1
matthewD New Member 0 Rep 8 Posts Drives: 335i Join Date: Sep 2008 Location: usa iTrader: (0)	JB 3 info I am new to the forum and did some research but needed some more questions answered. I have a 335i 6sp with prod 6/08. (DME v81). The car runs well with no sub 3000 rpm lag. (drove car with lag - can see a difference) - possible fix at the factory on later prod models?? Anyway, I added a SSTT and can see a nice difference but want more. Will the JB 3 give more appricable gains without secraficing drivability? is it undetectable like the SSTT? Can I run it on shell 91 octane? (best I can get). I am concerned about 13-15 psi boost on the tiny turbos. (well over their design efficiency in my opinion). How about water/oil temps? more power = more heat. Does the tune lower boost in the upper rpm range? does it speed up the water pump when under boost? (aka Dinan tune)? thanks
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09-30-2008, 11:16 PM	#2
sd390r Lieutenant Colonel 61 Rep 1,654 Posts Drives: AW M3 Join Date: Aug 2008 Location: North Jersey iTrader: (9) Garage List 2008 E90 335i [0.00]	http://www.e90post.com/forums/showthread.php?t=175091 read that about the jb3... any more questions you can PM me if you still ahve any __________________ 2008 E90 M3 - Sold 2006 Evo IX SE - Sold 2008 E90 335i - Sold
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10-01-2008, 11:41 AM	#3
David1 Brigadier General 816 Rep 3,957 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	The car will actually have more drivability. I wouldn't worry about the water pump feature that Dinan has if that is true.
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