Drivetrain (Cooper S) MINI Cooper S (R56) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain JB+ issues

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Old May 8, 2018 | 07:42 PM
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asysavanh's Avatar
asysavanh
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JB+ issues

Anybody have issues with the jb+ adapting? I installed it as the directions stated but still don’t see an increase in power or boost. Driven about 140 miles in two days. WOT and cruising speeds. It is the newer carb version.
i re installed it with the dial turned to 50% to see if that does anything. Wondering if anyone else has had issues.
My next step is to disconnect the battery for a few hours and then reinstalling the JB+ after a couple days of driving.

2012 MCS R56 N18. It is a true 2012 model btw.
 
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Old May 8, 2018 | 08:05 PM
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When I had one, which was the earlier version it was noticeable almost immediately. Did you buy it new?

I don't think the disconnect battery will do anything for you.
 
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Old May 8, 2018 | 08:44 PM
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Nope I bought it from a reputable person. Bought it used. I’m going to try and few things here and there before I give up and go For a legit tune
 
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Old May 10, 2018 | 10:58 AM
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Issue solved
 
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Old May 10, 2018 | 11:23 AM
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Originally Posted by asysavanh
Issue solved
How?
 
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Old May 10, 2018 | 11:40 AM
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I just installed the JB+ last week and it came preset at 100%. The instructions noted that if using 93 or better to leave it at this setting. Feel it most after 3k rpm's.
 
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Old May 10, 2018 | 05:40 PM
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What resolved the issue with your JB+?
 
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Old May 10, 2018 | 09:07 PM
  #8  
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Took my dv adaptor off.
had a stuttering issue. Gone after I switched to e85 mix. Turned it down to 75% holding at 14-15lbs.
 
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Old Jun 16, 2018 | 07:25 PM
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asysavanh what mix are you using? I’m having similar issues even at 50% unfortunately I’m in Houston and the temps in the middle of the day are over 100degrees. Does anyone have any experience with jb+ and high temps. Does higher octane do the trick or is meth the only solution?
 
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Old Jun 16, 2018 | 07:46 PM
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I have the current version in Austin and keep it set at 100% with no heat related issues using 93.
 
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Old Jun 16, 2018 | 08:43 PM
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S-2013 do you know what boost levels you’re hitting? If I set it at 100% I get over 20psi and go into limp mode. Also I bought it used from another NAM memeber so I might have to older version. I also use 93 octane gas.
 
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Old Jun 18, 2018 | 05:37 AM
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I can check using my P3 OBDII gauge but read it doesn’t read boost accurately using any piggyback tuners.
 
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Old Jun 22, 2018 | 09:35 PM
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Finally figured out what was wrong. It was the spark plugs. They were in dire need of replacing and went with the NGK ones recommended on Burger’s site. Now I’m set at 100% with 93 gas and hitting 18-19lbs without issues!
 
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Old Jun 23, 2018 | 04:21 AM
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What NGK plugs do they recommend, if you don't mind saying?
 
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Old Jun 23, 2018 | 05:26 AM
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Originally Posted by s-2013
what ngk plugs do they recommend, if you don't mind saying?
NGK (1422) ILKR8E6 spark plugs.
 
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Old Jun 23, 2018 | 08:26 AM
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Originally Posted by scotty_r56s
NGK (1422) ILKR8E6 spark plugs.
i went with the 95770 as suggested by burger below. I’ve read that the 1422 also work great, but are a step colder than the 95770.

http://www.burgertuning.com/mini_coo...t_adapter.html
 
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Old Aug 21, 2018 | 01:35 PM
  #17  
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buy last month JBplus 100% dial and it worked perfect

JCW N18 2013

I have also installed

spark plugs NGK (1422) ILKR8E6

Downpipe Milltek

CatBack Ipe Exhaust

Intercooler Wagner

It is very similar in a focus rs 2017 stock
 
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