JB4 Map Guide:
Map0: Stock tuning, fully disable JB4
Map1: 3psi over stock added (91 octane)
Map2: 4psi over stock added (91-93 octane)
Map3: 6psi over stock added (93+ octane)
Map4: Absolute target map with peak target of 20psi (93+ and/or 30% E85, EWG connector suggested)
Map5: Absolute target map with peak target of 22psi (30% E85+ fuel, EWG connector suggested)
Map6: Custom tuning map -- see details on n54tech JB4 page
Map7: Progressive WMI map with tuning a function of meth flow and user defined boost additive.
Map8: VALET / Low Boost Map
Been running around in MAP1 for more than 8 months and just a few days ago I decided to change it to MAP2 instead.. Still haven't really test it out but the difference is not that apparent comparing to stock standard and progressing to MAP1.. Let me try it out for a while more and I will update accordingly..
I'm planning to do a dyno run and see what's the gain I get when running on MAP1 and also MAP2.. My hand is itching to press on MAP3 as the boost is double of that comparing to MAP1.. But I'm not sure whether RON97 petrol is sufficient or I need to run RON100 for not getting engine detonation.. Because 93 Octane is around RON98 so running on MAP2 is still consider safe as you can see from the above.. I can't get any information on Octane 93+ hence I dare not venture into MAP3 for this particular reason alone unless I'm running on RON100 which is definitely safe enough to run on MAP3..
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