JB+ question re: the dial

borisivan · 08-16-2010, 08:38 AM

Hi,

For a JB+, people seem to run ~ 50%, 75%, 100%.

The dial has more settings than just these --- do they work correctly or should they be avoided? For example it looks like there is another 'notch' between 75% and 100%, etc.

What is the recommendation for the bypass -- what is the setting on the dial where this becomes useful? I saw in a different thread that someone mentioned that the bypass isn't really useful if the dial is set to anything other than 100%.

Thanks!

3Aims · 08-16-2010, 08:53 AM

What grade of gas you run matters most. If 91, then 75% is recommended max. If 93 or higher, you can go up to 100%.

I run 93 and have used the JB+ for 18 months (25k miles). I've played with 25% to 100% with thousands of miles at each setting. I think the sweet spot is right around 85%. Just ahead of the 3 o'clock mark (75%) and behind the 5 o'clock mark (100%).

I have never done the bypass.

borisivan · 08-16-2010, 11:27 AM

Thanks for the scoop.

08-16-2010, 08:38 AM	#1
borisivan craptastic 19 Rep 281 Posts Drives: 2010 335xi Join Date: Jul 2007 Location: hell in a handbasket iTrader: (0)	JB+ question re: the dial Hi, For a JB+, people seem to run ~ 50%, 75%, 100%. The dial has more settings than just these --- do they work correctly or should they be avoided? For example it looks like there is another 'notch' between 75% and 100%, etc. What is the recommendation for the bypass -- what is the setting on the dial where this becomes useful? I saw in a different thread that someone mentioned that the bypass isn't really useful if the dial is set to anything other than 100%. Thanks!
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08-16-2010, 08:53 AM	#2
3Aims Private First Class 2 Rep 100 Posts Drives: 535i Join Date: Aug 2009 Location: Dallas iTrader: (1)	What grade of gas you run matters most. If 91, then 75% is recommended max. If 93 or higher, you can go up to 100%. I run 93 and have used the JB+ for 18 months (25k miles). I've played with 25% to 100% with thousands of miles at each setting. I think the sweet spot is right around 85%. Just ahead of the 3 o'clock mark (75%) and behind the 5 o'clock mark (100%). I have never done the bypass.
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08-16-2010, 11:27 AM	#3
borisivan craptastic 19 Rep 281 Posts Drives: 2010 335xi Join Date: Jul 2007 Location: hell in a handbasket iTrader: (0)	thanks! Thanks for the scoop.
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