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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > how long does switching map on JB3 take to fully adjust?



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      10-07-2009, 04:47 PM   #1
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how long does switching map on JB3 take to fully adjust?

say im on map 3 and wanting to put race gas in and go up to 5 or 7, how long in advance should i do it to make sure the car has fully adapted to the changes for the full benefit?
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      10-07-2009, 04:50 PM   #2
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u can run map 5 and 7 without race gas... so run it for a day or so... but dont run map 7 if u dont have supporting mods and u should have at least 93 octane for map 4 or 5
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      10-07-2009, 04:53 PM   #3
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Quote:
Originally Posted by badass1g View Post
say im on map 3 and wanting to put race gas in and go up to 5 or 7, how long in advance should i do it to make sure the car has fully adapted to the changes for the full benefit?
The JB3 1.3 will adjust after a few WOT if you need to adapt quickly.

The newest JB3 1.4 beta lagfix maps take a bit longer to adapt, perhaps a day of driving or so. Of course it depends on how much you drive.
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      10-07-2009, 05:13 PM   #4
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ok so i will just adjust it the day before the track to be sure all is well. i have crappy 91 octane here and my car is stock so when i put the 100 unleaded in i will just go to map 5 and call it good. with slicks im hoping for a 12 second slip@4500 ft
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      10-07-2009, 05:17 PM   #5
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To do the map switching takes a few seconds with the car off of course, but just dont try and run Map 7 without higher octane. Map 7 is good when you have DP's FMIC and intake.
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      10-07-2009, 11:46 PM   #6
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bro with a 100octane don't worry about it run map 6 *u will never look back*

worst possible thing that can happen is a limp mode turn the car off and change the map end of story..
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      10-08-2009, 12:27 AM   #7
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ok lets say i want to do like 2 runs on map 3, and adjust it to do 2 runs on map 5, then 2 runs on map 6, would simply changing it at the track after runs give the car/jb3 enough time to make all necesarry adjustments and properly run ? or should i just put it on map 6 before i head to the track (2 hour drive) and call it good and leave it on 6 all day?


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bro with a 100octane don't worry about it run map 6 *u will never look back*

worst possible thing that can happen is a limp mode turn the car off and change the map end of story..
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      10-08-2009, 08:28 AM   #8
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Quote:
Originally Posted by badass1g View Post
ok lets say i want to do like 2 runs on map 3, and adjust it to do 2 runs on map 5, then 2 runs on map 6, would simply changing it at the track after runs give the car/jb3 enough time to make all necesarry adjustments and properly run ? or should i just put it on map 6 before i head to the track (2 hour drive) and call it good and leave it on 6 all day?
You should start with higher maps then change down.
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      10-08-2009, 09:05 AM   #9
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You should start with higher maps then change down.
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      10-08-2009, 11:39 AM   #10
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can you explain why i would do that?
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      10-08-2009, 01:19 PM   #11
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Quote:
Originally Posted by badass1g View Post
say im on map 3 and wanting to put race gas in and go up to 5 or 7, how long in advance should i do it to make sure the car has fully adapted to the changes for the full benefit?
It has been reported that the latest 1.4 rev 8.4 BT may take a few days to adapt.
Which version are you running ?

If you are running a slightly older version and your car is fully adapted - only a few WOT should be sufficient for map adjustment.

IMHO, say 45 minutes before hitting the track I would have my race gas in and switched to the highest map.
Before track arrival, I would beat on the car for a bunch of pulls before racing.

Fwiw, unless you can do a few WOTs between runs map adapting at the track -especially going up in maps - may not work well.
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      10-08-2009, 01:49 PM   #12
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i think i have the very latest version (its still getting shipped to me) from brad@psimotors. so looks like i better get that thing in asap when it gets here to give my car a day or two to adapt. i think im just gonna do map 5 while i only have 91 octane, and then put in the 100 octane gas in before the 2 hour drive to the track, and do about 5 or 10 pulls on the way to get it all settled.

i wish you could just adjust it and go run, sucks that you have to have everything adapt. i wish i could just start on map w1, then run map 3, and go up from there just to see the difference in times/power.
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      10-08-2009, 02:11 PM   #13
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I would measure the adaptation not in days but rather WOT pulls. When I switch from map 3 1.4rev8.4 to map 5 it takes about 2-3 good WOT pulls to feel stronger. Should be good the day of.
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      10-08-2009, 02:26 PM   #14
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ok then i will get to the track on map 3, run it once, then switch to 5, and each run will count as a WOT pull and the times will hopefully keep improving until its fully adapted, then if we get tons of runs in, i will switch to map 6 or 7 since i will have the 100 octane and see how that reacts. im guessing i will get atleast 7 runs at this track.
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      10-08-2009, 05:32 PM   #15
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Did I read correctly that you will have slicks? If so, you may want to try map 7 over map 6. As long as you have 100 octane, map 7 won't be a huge let down and will probably be stronger than map 5 even without supporting mods.

It's good that you are going to sample that many maps though and fortunate to get that many runs at the track. Good Luck!
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      10-08-2009, 05:39 PM   #16
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im gonna tell u how i do it when i go two the track,

go two ur car the day before.. i always run map6 ALWAYS i adjust her two map-7 start her up and go for a cruise wait a little while till she warms up and slowly just keep getting into the gas than after about 10minz of driving get some heavy wot runs go home turn her off chill out next day go two the track and beat the crap outta her till u get there! lol i know this sounds crazy but i do it everytime and i get some pretty good results on pump gas and street tires... check out the sig,
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      10-08-2009, 05:40 PM   #17
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forgot u got slicks

100octane MAP 7!
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      10-08-2009, 06:52 PM   #18
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hahaha map 7 with only a k&n filter as my only other mod besides slicks? okie dokie fella i will post the results hahahaha
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      10-08-2009, 07:00 PM   #19
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i think the majority of gutting the stock cats would help spool time as well as allow you to run HIGH leaded race gas. allowing to run higher boost maps
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      10-08-2009, 07:45 PM   #20
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Quote:
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hahaha map 7 with only a k&n filter as my only other mod besides slicks? okie dokie fella i will post the results hahahaha
lol bro i ran map 7 with a JUICEBOX ONLY! LOL
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      10-08-2009, 08:45 PM   #21
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Quote:
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i think the majority of gutting the stock cats would help spool time as well as allow you to run HIGH leaded race gas. allowing to run higher boost maps
sounds smart putting leaded gas in your car and all.......get back to us and tell us how that works out
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      10-08-2009, 09:13 PM   #22
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I run Map 7 on DCI/93 Octane daily. No problems. I hardly consider the DCI a "supporting" mod.
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