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Jb4 map 2 without DP?
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06-12-2014, 11:48 PM | #45 | ||
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Sounds like a bad idea man lol. Running 91 octane on map 2. |
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06-13-2014, 10:00 AM | #46 |
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Go check the stock CP you took off and see if the o-ring is still in there.
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06-13-2014, 01:23 PM | #47 |
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Yeah Wingman, i was starting to feel the same even though i had no issues. i put it on map 5. but i did put some octane booster in it just to make sure if i switch to map 2 iam at least in a little better shape haha.
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06-15-2014, 02:31 PM | #48 |
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Just a quick update. Had a quick opportunity to race another n54 335xi. E90 that was stock. Both of us had passengers. I raced on map 1....same result. He beat me. The catch is that I went ahead and switched to map 0. The result was exactly the same. Actually, I would say he pulled less on me on map 0. Lol
Last edited by -Wingman-; 06-15-2014 at 08:38 PM.. |
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06-16-2014, 08:02 AM | #49 |
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Did you ever check your CP to see if the o-ring is still in there?
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06-17-2014, 09:08 AM | #52 |
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The o-ring is still on your old charge pipe? If it is, then you didn't take it off and put it on the new one and you have a moderate boost leak.
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06-17-2014, 01:36 PM | #54 |
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I have an n55 currents mods are: 7" fmic, er cp, bmw full pe, bms intake, 93oct... I was running map 1 for a while before I got my cp than went to map 5 than got curious one day and tried map 2 it was a really strong pull im an xdrive and traction control went crazy and basically stopped my car haha but at any rate i have stock dps and map 2 feels good once and a while sometimes it doesnt feel as fast.. i say log your car with a few different maps and see what looks and feels good. map 5 when it tunes nicely with your car feels great!!
note: I noticed that on n54tech they updated the map guide for the n55 stg 2 and it no longer mentions needing a dp for map 2.. weird.. i could be wrong but check out map guide on the official jb4 n55 thread on n54tech |
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06-17-2014, 05:25 PM | #55 |
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06-20-2014, 05:59 PM | #56 | |
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06-20-2014, 06:01 PM | #57 |
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http://www.n54tech.com/forums/showthread.php?p=193708
"Map 2: 14psi. Suggested for those with a high flow exhaust and 93 RM2 or higher octane. " niceee I have 100oct in my tank now hah ill try it out.. but I still think you should get a dp for that quicker spool |
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06-20-2014, 06:01 PM | #58 |
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Ok, well the CP is secure on the engine for sure. The o-ring is in good shape and all the clamps are pretty tight as well as the tmap sensor. Car seems to hold boost better, and it doesn't fluctuate that much, but the car doesn't feel THAT much quicker if you know what I mean. Is the boost supposed to taper down to just above 10psi as the rpms go up? Is there a possibly there's a boost leak somewhere else?
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06-21-2014, 09:49 AM | #59 | |
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06-21-2014, 09:51 AM | #60 | ||
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06-21-2014, 09:56 AM | #61 | |
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By the way, I also hear that down pipes don't help as much with n55 as with n54 but these are questions maybe good for terry or someone with expertise.
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06-21-2014, 10:11 AM | #62 | |
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So like this: BMW PPK ~ COBB stage 1 sport JB4 map1 ~ COBB stage 1 aggressive Am I wrong about that?
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06-21-2014, 02:07 PM | #63 | |
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06-22-2014, 12:05 AM | #64 |
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I know. It's horrible. Especially coming from a car that would build power all the way to 8700rpms lol
I'm trying to log on jb4, but I can't find the software I need to download to do logs. I put some e85 in the car and it's running a bit stronger, but I'd like to see numbers. |
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06-25-2014, 09:58 AM | #66 | |
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JB4 G5 ISO FF | BMS Performance Intake | BMS Wheel Spacers | VRSF Catless DP | Red CYBA Scoops | Supreme Power Lowering Perches | VRSF Charge Pipe | VMR 810 19x8.5 ET35 19x9.5 ET33 | Michelin PSS 235/265 | BMS CDV | BMS Clutch Stop | 4'' Tips
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