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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 > What Jb4 Map to use?



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      04-23-2012, 10:14 AM   #23
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Quote:
Originally Posted by triggz View Post
17? Impossible....map 2 max is 14.5

Meth is good for your car and there are no ill side effects. Its great for cooling and carbon build up.
i may be wrong, i saw 14.5 on map 2 without downpipes, just the rest of the mods.. i put on downpipes and now the needle goes furthur on map 2, and i do feel a difference.

im using the gauge hack so maybe its not accurate.
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      04-23-2012, 10:14 AM   #24
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What kind of numbers should i be expecting on the dyno with all my mods..

How many hps to the wheel.
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      04-23-2012, 10:52 AM   #25
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Quote:
Originally Posted by JayTdotP
What kind of numbers should i be expecting on the dyno with all my mods..

How many hps to the wheel.
You should be right around 370-380 hp and 400-410 ft lb
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      04-23-2012, 01:33 PM   #26
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Quote:
Originally Posted by JayTdotP View Post
i may be wrong, i saw 14.5 on map 2 without downpipes, just the rest of the mods.. i put on downpipes and now the needle goes furthur on map 2, and i do feel a difference.

im using the gauge hack so maybe its not accurate.
I was testing these maps out last night and logged a 3rd gear (2,000 to 7,000 rpm) map5 vs map 2. Map 2 seems to hold a more constant boost.....map 5 may feel a bit more torque down low. I have the cvs file but have no idea what to even look for lol!
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      04-23-2012, 02:00 PM   #27
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here is a 2,000-7,000 WOT run in 3rd gear map2 Vs map5 (Did 4-5 3rd gear WOT runs before logging so map 5 was adapted). I have the CVS file if anyone wants to read it. noticed on map 5 run it may not been at full throttle...


map 2:




map 5:

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      04-24-2012, 01:56 AM   #28
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map 2 vs map 5 with ignition and target...seems a bit under target on map 2 wich means a leak I am guessing. I have replace on lines on wastegate selonoids and canisters....lines behind oi housing...I am thinking Charge pipe O-ring or map sensor O-ring.

map 2:



map 5:

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      04-24-2012, 07:32 AM   #29
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you're barely underboosting in Map 5 so I wouldn't worry about it, i'd be more worried about why your log doesn't show 100% pedal in Map 5

Also, Map 2 looks too aggressive if you look at the timing drop according to the log. You shouldn't have a timing drop @ 5200 rpm, which looks like the car hit 12-12.5psi vs. 11.5psi in map 5. This could be the reason why target boost isn't reached.

You may need higher octane to run Map 2 or take advantage of Map 5 autotune.
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      04-24-2012, 08:00 AM   #30
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Quote:
Originally Posted by robc1976 View Post
I really wonder about this, not saying your wrong lol!! I asked Terry and he said map 2 is usually more powerful but I can see what you are saying....I have FBO besides meth and map 5 auto tunes to your mods you would think it would give you max boost/ performance for those mods and with it hitting 16psi would be better than map 2 at 14.5psi. I see a lot of map 5 votes in the thread....may have to go back to it.

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Before I went to the "IS" Map 6 I ran Map5 because I mixed fuel & could never be positive what the actual octane in the tank was other the it was 93 or over.

Because of the ECU timing an IS can run the old Map 2 with no bolt-ons but you need to be sure of the octane & Map 5 was a good solution.

There also seems to be some slop or reaction time in the system since my Map 6 is pretty much 15psi through the rev range but shows the 17psi limit a lot on the oil temp gauge hijack. Have not gotten around to a dyno run or log on the new map but the car is definitely faster & one guy with my exact setup went fro 12.8 to 12.5 with just the Map change.

I would expect all the 3/7 upgrades will help all the car across the board so it would be a good plan to download & install them.

Word of caution do not try to run the 335is, 1M or Dinan maps on a 335i because the factory installed timing curve is a lot different & you will have problems.

It would seem to be a good solution for anyone who is mixing gas. A no bolt on regular 335 with 91 octane has two choices 1 & 5. A down piped regular 335 has Map 2 & 5 as a choice on 91 or better. Either map will give more power on 93+

BTW I think Map 3 is a meth specific map have you looked into it?
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      04-24-2012, 08:18 AM   #31
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Quote:
Originally Posted by JayTdotP View Post
What kind of numbers should i be expecting on the dyno with all my mods..

How many hps to the wheel.

I had no add-ons at all & got 365WHP on a Dynojet Map 2 94 octane so I would expect under the same conditions you would be at least +20whp.

Thing is its not a good plan to compare numbers since conditions & machines vary all over the place. Key is a baseline run .vs. a modified run to see what you are really getting.

My pure stock base was 314whp.

I have since added a 5" ETS FMIC but have not tested the car. The FMIC was more to deal with the summer heat then to add any power, but more power would be frosting on the cake.
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      04-24-2012, 10:15 AM   #32
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Quote:
Originally Posted by spool twice View Post
you're barely underboosting in Map 5 so I wouldn't worry about it, i'd be more worried about why your log doesn't show 100% pedal in Map 5

Also, Map 2 looks too aggressive if you look at the timing drop according to the log. You shouldn't have a timing drop @ 5200 rpm, which looks like the car hit 12-12.5psi vs. 11.5psi in map 5. This could be the reason why target boost isn't reached.

You may need higher octane to run Map 2 or take advantage of Map 5 autotune.
I think the pedal was my fault....was to worried about hitting the kickdown (kicks-down easy). I am using 93 V power shell. So if I had a higher octane I wouldn't have a timing drop?
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      04-24-2012, 10:21 AM   #33
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Quote:
Originally Posted by BEAR-AvHistory View Post
Before I went to the "IS" Map 6 I ran Map5 because I mixed fuel & could never be positive what the actual octane in the tank was other the it was 93 or over.

Because of the ECU timing an IS can run the old Map 2 with no bolt-ons but you need to be sure of the octane & Map 5 was a good solution.

There also seems to be some slop or reaction time in the system since my Map 6 is pretty much 15psi through the rev range but shows the 17psi limit a lot on the oil temp gauge hijack. Have not gotten around to a dyno run or log on the new map but the car is definitely faster & one guy with my exact setup went fro 12.8 to 12.5 with just the Map change.

I would expect all the 3/7 upgrades will help all the car across the board so it would be a good plan to download & install them.

Word of caution do not try to run the 335is, 1M or Dinan maps on a 335i because the factory installed timing curve is a lot different & you will have problems.

It would seem to be a good solution for anyone who is mixing gas. A no bolt on regular 335 with 91 octane has two choices 1 & 5. A down piped regular 335 has Map 2 & 5 as a choice on 91 or better. Either map will give more power on 93+

BTW I think Map 3 is a meth specific map have you looked into it?
Great info!! I have FBO with 93 octane and it looks as if my car doesn't like map 2 lol!! I thought for map 3 I would have to have meth wouldn't I? I would like a bit more boost down low and at the 4,500-6,000 rpm range....like a custom map. I now there is a custom map option but have no idea how to set it up lol!! I have all the latest firmware and it was better than the others I must say.
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      04-24-2012, 10:25 AM   #34
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Quote:
Originally Posted by robc1976 View Post
I think the pedal was my fault....was to worried about hitting the kickdown (kicks-down easy). I am using 93 V power shell. So if I had a higher octane I wouldn't have a timing drop?
Try a 3rd gear log at a speed where kickdown won't be an issue. I'm curious to see your timing/boost situation in Map 5 to compare apples-to-apples.

I'm not sure why you're experiencing timing drops with the mods + 93 octane. B
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      04-24-2012, 10:28 AM   #35
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Quote:
Originally Posted by spool twice View Post
Try a 3rd gear log at a speed where kickdown won't be an issue. I'm curious to see your timing/boost situation in Map 5 to compare apples-to-apples.

I'm not sure why you're experiencing timing drops with the mods + 93 octane. B
Higher rpm so it won't kick-down? Log with ignition advance correct? Maybe I got crappy gas?
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      04-24-2012, 10:31 AM   #36
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Quote:
Originally Posted by robc1976 View Post
Higher rpm so it won't kick-down? Log with ignition advance correct? Maybe I got crappy gas?
It's possible you could have got a bad batch.

I'm not sure how to by-pass the kickdown for the automatic trans. I suppose a log above 4,000rpm is best, just to see if there is timing drops to red line.
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      04-24-2012, 10:35 AM   #37
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Quote:
Originally Posted by spool twice View Post
It's possible you could have got a bad batch.

I'm not sure how to by-pass the kickdown for the automatic trans. I suppose a log above 4,000rpm is best, just to see if there is timing drops to red line.
Will log it tonight, would colder temps effect the log...it was 40 degrees.
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      04-24-2012, 10:38 AM   #38
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Quote:
Originally Posted by robc1976 View Post
Will log it tonight, would colder temps effect the log...it was 40 degrees.

Log:
1) IAT
2) AFR
3) Timing
4) Pre-boost
5) Exp1
6) Throttle
7) Target

send a .csv to terry if you're still experiencing the timing drop. He'll assist you very quickly.
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      04-24-2012, 10:40 AM   #39
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Quote:
Originally Posted by spool twice View Post
Log:
1) IAT
2) AFR
3) Timing
4) Pre-boost
5) Exp1
6) Throttle
7) Target

send a .csv to terry if you're still experiencing the timing drop. He'll assist you very quickly.
Will do!
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      04-24-2012, 02:25 PM   #40
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What I have found that's easier to do when logging 3rd gear... Is to put the car into DS mode, get it up to 3rd gear, then start at a much lower RPM before pushing the peddle down SLOWLY without hitting the kick down... and if you start at a low enough RPM, you'll still be WOT before it reaches 3k RPM... Otherwise if you try to start at a higher RPM and quickly stab the peddle, its more likely you'll hit the kick down.


And as for logging and sending .csv files... The JB4 logs everything every time. So when you send someone a .csv file, everything is already there for them to see if they choose to. Clicking the options on the logging screen only selects what you actually see on the screen. Go ahead and try it some time, open up an old .csv file with the JB4 interface, and click on any option you want to see and it'll all be there, no matter what you had selected when you did the actual log

But obviously if you want to show a picture of your log, you'll have to select what you want them to see.
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      04-24-2012, 04:12 PM   #41
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Quote:
Originally Posted by Eracer76 View Post
What I have found that's easier to do when logging 3rd gear... Is to put the car into DS mode, get it up to 3rd gear, then start at a much lower RPM before pushing the peddle down SLOWLY without hitting the kick down... and if you start at a low enough RPM, you'll still be WOT before it reaches 3k RPM... Otherwise if you try to start at a higher RPM and quickly stab the peddle, its more likely you'll hit the kick down.


And as for logging and sending .csv files... The JB4 logs everything every time. So when you send someone a .csv file, everything is already there for them to see if they choose to. Clicking the options on the logging screen only selects what you actually see on the screen. Go ahead and try it some time, open up an old .csv file with the JB4 interface, and click on any option you want to see and it'll all be there, no matter what you had selected when you did the actual log

But obviously if you want to show a picture of your log, you'll have to select what you want them to see.
That is great info, I thought I was supposed o log from 2,000 -7,000.... If I can do it fom 3,000 and up it would be much easier. I tried map 5 and it seems low in comparison to map 2 but it may ave not been adapted.
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      04-25-2012, 06:43 AM   #42
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If you can't get your timing drop resolved, you could always try the CPS module to assist with that drop @ that RPM

It must be an elevation thing, I'm at or below sea level here (+/- 50ft) and I can run Map 2 with just a drop-in + 93 octane and get a healthy timing curve. It's only when I run higher than 17psi (map 7 or Map 3) is when I get a timing drop (even with Meth and race gas mix) so I keep it safe at 16.5psi and always get a healthy 4th gear timing curve.
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      04-25-2012, 12:17 PM   #43
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I was just informed by. Ver knowledgable person that DCT should be turned off while logging....mine wasn't. I thought DCT just loosed wheel spin and did nothing to timing....I was wrong lol!!
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      04-25-2012, 12:44 PM   #44
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Quote:
Originally Posted by spool twice View Post
If you can't get your timing drop resolved, you could always try the CPS module to assist with that drop @ that RPM

It must be an elevation thing, I'm at or below sea level here (+/- 50ft) and I can run Map 2 with just a drop-in + 93 octane and get a healthy timing curve. It's only when I run higher than 17psi (map 7 or Map 3) is when I get a timing drop (even with Meth and race gas mix) so I keep it safe at 16.5psi and always get a healthy 4th gear timing curve.
Great info! I am at 500ft sea level.
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