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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 > JB4 question



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      06-07-2011, 02:06 PM   #1
Randomaccess335
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JB4 question

I now have DP's with my jb4 and dci's and I'm getting my ets fmic this week.
Was wondering if I should stay on map 5 (autotune) or should I put it on map 2 after I install the ic?? I'll be running 93 pump gas

Can't search cause I'm using my IPhone so thanks for any info.

Side note-my Riss racing dp's I purchased very cheap and never used, I was told would not fit, most of my searches said the same.

I just wanna say after wiggling them around for 30-45mins they fit perfect no touching no rattling. I did have to remove one small bolt to make them fit. Hardest part was getting the turbo clamps back on and it is a pain in the ass installing them with jack stands and ramps.
But definitely worth it
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      06-07-2011, 02:10 PM   #2
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Stick with autotune it will compensate
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      06-07-2011, 04:04 PM   #3
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      06-07-2011, 04:31 PM   #4
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+1 for Autotune and props for installing DPs yourself!
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      06-07-2011, 04:37 PM   #5
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Hey random,

I am one step behind you and wondering how dp will affect my noise level and smell

How are yours:

Louder? Drone? Any smell?

Thnx. I'm ordering my hpf fmic next week! >
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      06-07-2011, 04:55 PM   #6
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Not that loud, but I can hear the difference and I like it. seems to be more noticeable at higher rpm's. I don't know what it sounds like from the outside yet.

About the smell.. so far I noticed it the first time I let my car heat up, since no smell that I can notice. But this is only the 2nd day, I don't know if I will get worse.
It was a pain getting my dp's into place but after I did and got the clamps on it was pretty easy.

Can't wait for intercooler
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      06-07-2011, 04:56 PM   #7
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And no drone, also I still have stock pipes from dp's back
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      06-07-2011, 05:58 PM   #8
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      06-07-2011, 08:05 PM   #9
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      06-07-2011, 11:29 PM   #10
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      06-07-2011, 11:32 PM   #11
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I guess I'm going with auto tune for street and map 7 at the track 1/4
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      06-07-2011, 11:51 PM   #12
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Quote:
Originally Posted by Randomaccess335 View Post
I guess I'm going with auto tune for street and map 7 at the track 1/4

That sounds like a plan.

I noticed your also in Boynton Beach. A few of us meet up on Thursday nights if you interested in coming out.
http://www.e90post.com/forums/showthread.php?t=529908
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      06-08-2011, 01:07 PM   #13
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That sounds good
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      06-08-2011, 02:20 PM   #14
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Auto tune (map 5) allows for higher boost than map 2...(IIRC 14.5 vs 16.5 max) if for some reason you were getting lower boost on map 5 then something is prolly wrong, or you are in very shitty conditions. You could at that point run map 2 though for a little more power, I would suggest figuring out why map 5 was pulling power back though.
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      06-08-2011, 02:48 PM   #15
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Hi, Im expecting the same answer as above but to double check as im a new 335i owner.
Im fitting a JB4 next and il be running stock/duel cones but with 98-100 gas.
Would i be best on map 5 too or is there a map that will give me more boost like 7.....?
Thanks!!!

Last edited by shaddow; 06-08-2011 at 03:21 PM..
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      06-08-2011, 04:09 PM   #16
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Quote:
Originally Posted by Randomaccess335 View Post
I now have DP's with my jb4 and dci's and I'm getting my ets fmic this week.
Was wondering if I should stay on map 5 (autotune) or should I put it on map 2 after I install the ic?? I'll be running 93 pump gas

Can't search cause I'm using my IPhone so thanks for any info.

Side note-my Riss racing dp's I purchased very cheap and never used, I was told would not fit, most of my searches said the same.

I just wanna say after wiggling them around for 30-45mins they fit perfect no touching no rattling. I did have to remove one small bolt to make them fit. Hardest part was getting the turbo clamps back on and it is a pain in the ass installing them with jack stands and ramps.
But definitely worth it
Do you have the USB cable?

Do a datalog on map5 and map2 and you can send them to me and I can let you know which looks better, etc.

Mike
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      06-08-2011, 06:12 PM   #17
Randomaccess335
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I do have a USB cable, I hooked it up to my laptop and ran it a few times.
I have no idea if I did it right and not sure how to look at them
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Ebay 4" chrome Tips, Lux Angel Eyes
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      06-08-2011, 08:43 PM   #18
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:/
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      06-09-2011, 12:37 AM   #19
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If you still need help come to the meet tomorrow night and I'll help you out.
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      06-09-2011, 01:06 AM   #20
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If I can I will, next Thursday for sure cause I want some help with the data logging.
Ty
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