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what does jb3 change other than boost?
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10-24-2009, 08:03 AM | #2 |
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Alot of things to name... LOL@ boost controller. I never really tell people to search but in this case it might be best to get the complete info you are looking for. Or visit N54tech.com to get more info on the JB3.
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10-24-2009, 08:39 AM | #3 |
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Wow you run a jb3 without even knowing what kind of tune it is?
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10-24-2009, 10:06 AM | #5 |
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10-24-2009, 10:08 AM | #6 |
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To the OP:
B1S1 and B2S1 O2 Sensor Biasing for fuel adjustments TMAP for basic boost control Boost Control Solenoids pulse width can be extended for extra boost Fuel Pressure signal is adjusted for suplemental fueling |
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10-24-2009, 10:44 AM | #9 | |
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Quote:
There is alot to it to explain exactly what goes on and how it works like adaption, and what changes with adaption and or whats exactly adapts and what controls what when the JB3 alters these, but adaption and jb3 altering FURTHER signals for the specific higher map//boost is basically what changes when you switch maps, might be more to it but from what i know that is it in brief. There is alot of good info around here and N54tech that has covered alot of this and explains most of it. Besides all the mini wars within them. What the JB3 controls is a different question... That also has been covered alot.
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10-24-2009, 10:45 AM | #10 |
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When I went from jb+ to jb3 I felt more pull outside of boost. During the gear changes, not at wot, immediately after the change the car has more pull, like its in ds mode all the time.
Maybe thats the auto lag fix or something, i dont know. But there is definitely changes outside of just wot during boost.
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10-24-2009, 10:46 AM | #11 |
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It has Vtec.
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10-24-2009, 11:55 AM | #12 | |
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So it adjusts boost and fuel delivery. Shiv |
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10-24-2009, 11:59 AM | #13 | |
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Ive asked these same types of questions in many forums and still dont have a satisfactory answer for what the tunes are doing throughout all the rpm's. Well, some of the answers are too technical for my understanding.
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10-24-2009, 12:18 PM | #14 |
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Your acceleration times.
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10-24-2009, 12:24 PM | #15 |
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yes, i definatly know there is a huge power difference. it was once again proven by my trip to the dealer by taking it out and putting it back in (only runing map 3), my boost guage wend from just under 8 without it, to about 13ish, both are peak numbers and then the boost falls with rpm (damn small turboes? or internal wastegates?). and the lagfix is DEFINATLY noticeable as well. i love the JB3 just wanted to make sure i was getting additional fuel to feed that extra boost.
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10-24-2009, 12:30 PM | #16 | |
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10-24-2009, 12:39 PM | #17 | |
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The only significant adaptation is with timing advance. So, yes, a change in map selection will eventually cause a change in timing adaptation; higher maps will inevitably cause a reduction in ignition advance through adaptation or a switch to a lower octane map. |
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10-24-2009, 12:44 PM | #18 |
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Need to get to 188mph and have downpipes to use that map.
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10-24-2009, 01:01 PM | #20 |
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10-24-2009, 01:10 PM | #21 |
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If JB4 is flux capacitor, that makes Terry the Doc. Does that make Shiv, Biff Tannen?
jk Shiv.
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10-24-2009, 01:54 PM | #22 |
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haha thanks. Its all in good fun.
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