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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > -=N55 BMS Stage 2=- Beta Initial thoughts + Install pictures



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      09-12-2011, 08:25 PM   #89
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Did a test run with Stage 2 this afternoon; I added the ER n55 charge pipe to my config as well due to the fact that I was running 16psi on Stage 1 with race gas and I did not want to break the OEM cp.

This afternoon's test: JB4 Stage 2 - MAP 2, 93 octane w/ NOS Octane Boost with MMT, Vishnu cat-less DP, ER charge pipe, aFe cai, Remus Race exhaust

1st run: 2nd gear, D/S mode, 'default' traction - WOT stomp @ 20 mph... boost was so instant the vehicle lurched/launched forward so hard the traction control engaged and immediately killed fuel... it recovered... lurched again and killed fuel. (sequence occurred in about 3 seconds) but did not result in any "limp" mode condition... this was the car "doing its job" to recover from "loosing control".

2nd run: Same conditions as above, just had traction control partially engaged - WOT stomp @ 20 mph... boost instant, launch was controlled and it pulled like a friggin' train. Even though I am running LESS psi than Stage 1, I have to agree with Andrew on this, it feels like it pulls harder and it definitely doesn't have the sharp drop off that the stage 1 had in 2nd or 3rd gear WOT runs.

3rd and 4th runs were consistent.

Noted: With Stage 2 with my current configuration, I must have traction control partially engaged OR cap off 1st and 2nd gear psi to a limit the car can handle safely while in "default" mode.

Since I am running 103 octane right now, I'll try MAP 7 and report back which should resemble what I was running prior to Stage 2.

Overall, very impressed and cannot wait until my next dyno. Then onto METH...
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      09-12-2011, 08:37 PM   #90
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Quote:
Originally Posted by madmanhiker View Post
.

This afternoon's test: JB4 Stage 2 - MAP 2, 93 octane w/ NOS Octane Boost with MMT, Vishnu cat-less DP, ER charge pipe, aFe cai, Remus Race exhaust
Theoretically speaking, this setup of yours in map 7 with race gas should be putting out approx how much HP? 320-330whp/360-380tq?
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      09-12-2011, 09:18 PM   #91
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Quote:
Originally Posted by turugara View Post
Theoretically speaking, this setup of yours in map 7 with race gas should be putting out approx how much HP? 320-330whp/360-380tq?
no, I dyno'd a couple months ago in 100 degree weather with half of these mods and only running JB+ and still put out 310 rwhp and 330 tq. With the Stage 2 and the rest of the bolt-ons, I should hit 340-360 whp and 380-420 tq. That would be a fair and logical assessment based on previous dyno's of my vehicle.

My "Stage 3" will be adding the BMS WW Meth kit and the Helix IC. Goal is 375-400 rwhp and 430-450 Tq.
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      09-12-2011, 10:42 PM   #92
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My "Stage 3" will be adding the BMS WW Meth kit and the Helix IC. Goal is 375-400 rwhp and 430-450 Tq.
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      09-12-2011, 10:46 PM   #93
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Quote:
Originally Posted by madmanhiker View Post
no, I dyno'd a couple months ago in 100 degree weather with half of these mods and only running JB+ and still put out 310 rwhp and 330 tq. With the Stage 2 and the rest of the bolt-ons, I should hit 340-360 whp and 380-420 tq. That would be a fair and logical assessment based on previous dyno's of my vehicle.

My "Stage 3" will be adding the BMS WW Meth kit and the Helix IC. Goal is 375-400 rwhp and 430-450 Tq.
nice! i dont have to be the first... lol
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      09-12-2011, 11:22 PM   #94
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I wanna see who gets the absolute closest to 400. It's obvious meth will be necessary and probably FBO but at least we can see which parts are the best to this given all of the different manufacturers offering stuff.
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      09-12-2011, 11:44 PM   #95
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Originally Posted by Questforpower View Post
I wanna see who gets the absolute closest to 400. It's obvious meth will be necessary and probably FBO but at least we can see which parts are the best to this given all of the different manufacturers offering stuff.

It will be me, I am going to the dyno soon and I know what this car needs to reach 400whp.
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      09-13-2011, 12:08 AM   #96
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It will be me, I am going to the dyno soon and I know what this car needs to reach 400whp.
Can't wait to see the first person to hit 400 whp.
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      09-13-2011, 12:14 AM   #97
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just did a test with jb4 stage 2 in map 6 i get 10-12 psi does that mean my dme needs an update:?
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      09-13-2011, 01:13 AM   #98
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Quote:
Originally Posted by AlpineWhiteM3 View Post
just did a test with jb4 stage 2 in map 6 i get 10-12 psi does that mean my dme needs an update:?
As far as i know map 6 on the stage 2 is a custom tuning map. Please email terry on that one.
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      09-13-2011, 01:14 AM   #99
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Quote:
Originally Posted by madmanhiker View Post
Did a test run with Stage 2 this afternoon; I added the ER n55 charge pipe to my config as well due to the fact that I was running 16psi on Stage 1 with race gas and I did not want to break the OEM cp.

This afternoon's test: JB4 Stage 2 - MAP 2, 93 octane w/ NOS Octane Boost with MMT, Vishnu cat-less DP, ER charge pipe, aFe cai, Remus Race exhaust

1st run: 2nd gear, D/S mode, 'default' traction - WOT stomp @ 20 mph... boost was so instant the vehicle lurched/launched forward so hard the traction control engaged and immediately killed fuel... it recovered... lurched again and killed fuel. (sequence occurred in about 3 seconds) but did not result in any "limp" mode condition... this was the car "doing its job" to recover from "loosing control".

2nd run: Same conditions as above, just had traction control partially engaged - WOT stomp @ 20 mph... boost instant, launch was controlled and it pulled like a friggin' train. Even though I am running LESS psi than Stage 1, I have to agree with Andrew on this, it feels like it pulls harder and it definitely doesn't have the sharp drop off that the stage 1 had in 2nd or 3rd gear WOT runs.

3rd and 4th runs were consistent.

Noted: With Stage 2 with my current configuration, I must have traction control partially engaged OR cap off 1st and 2nd gear psi to a limit the car can handle safely while in "default" mode.

Since I am running 103 octane right now, I'll try MAP 7 and report back which should resemble what I was running prior to Stage 2.

Overall, very impressed and cannot wait until my next dyno. Then onto METH...


Papa,

If you are having trouble with 1st and 2nd gear there is a traction assist that can help you with that.

How does the traction assist work?

If you find traction problems too severe in 1st and/or 2nd gear you can cap the maximum boost/torque achieved in those gears to aid with traction. You'll find them under user settings. A value of 10.0 in 1st and 12.0 in 2nd will limit boost to 10.0psi while in 1st gear and 12.0psi while in 2nd gear. When in 1st or 2nd gear under the boost limit you may hold down the steering wheel volume or talk button to bypass the limit while the button is held down. For example if doing a burn out at the track.
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      09-13-2011, 12:33 PM   #100
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How is everyone gas mileage now with stg 2 vs 1?
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      09-13-2011, 12:34 PM   #101
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Just ordered the Stage 2 with CAN tool.

Do I have to get the car software updated before I can install the tune?

Also what items do y'all suggest I order in addition to this purchase?

I appreciate the help
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      09-13-2011, 01:01 PM   #102
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Originally Posted by Yay-Z View Post
Just ordered the Stage 2 with CAN tool.

Do I have to get the car software updated before I can install the tune?

Also what items do y'all suggest I order in addition to this purchase?

I appreciate the help
you don't need CAN tool for the stage 2. It comes integrated with it. Yes, you need the latest DME update for the tune to work properly. A downpipe would be the next biggest gain.
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      09-13-2011, 02:19 PM   #103
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You need to first find out which dme ver you have you may just have it already.
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      09-13-2011, 02:24 PM   #104
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Quote:
Originally Posted by Andrew@EMSTUNING View Post
You need to first find out which dme ver you have you may just have it already.
My car was purchased back in April last year. Haven't had a software update.
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      09-13-2011, 02:25 PM   #105
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Quote:
Originally Posted by eyim1988 View Post
you don't need CAN tool for the stage 2. It comes integrated with it. Yes, you need the latest DME update for the tune to work properly. A downpipe would be the next biggest gain.
Thanks for the help sir
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      09-13-2011, 02:44 PM   #106
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Most likely you will need it then but you can always have your dme version read with your key at bmw.
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      09-13-2011, 09:29 PM   #107
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Just got mine in the mail, now to see if AR will install for me.
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      09-18-2011, 11:12 AM   #108
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Thank you

I just wanted to thank you for your excellent diy. I have never tuned a car before and I just got the n55 stage 1 and 2. I used your post with the help of Terry's in n54tech and and great stage 1 diy in same place by platformer and I am done in 1:15 start to finish.

Time for a ride
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      09-18-2011, 03:36 PM   #109
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You are welcome !!
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      09-18-2011, 06:29 PM   #110
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first impressions......

so instead of starting stage 1 then upgrading to stage 2, i just went with both right away. So no comparisons between 1 and 2, but from stock to 2, Holy Shit! The first thing i noticed was the turbo sound, have heard it a little before, but never like this. Midrange is insane, and u never need to really push the pedal down to get thing moving at insane speeds.

Now I did not do any logs or WOT, just getting over a broken ankle and can not press hard on the clutch, maybe in 2-3 weeks.

But for now, woohoo
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