N54Tech.com - International Turbo Racing Discussion
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erwan35's Avatar
erwan35 erwan35 is offline
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Car: bmw 335i e92
Talking map 6 tuning anyone? - 10-29-2014, 11:22 AM

does anyone tuning for map6? never tried it before and dont know how to tune using map6. perhaps anyone is an expert of this would help?
my car mods are as below signature.



_______________________________________\\\
BMW 335I E92 2007 RHD 6AT,FULL M3 BODYKIT,HYBRID TURBOS,BMS ADAPTER W/ 3.5BAR TMAP,VTT INLETS,JB4 G5ISO W/ MHD TREBILA FLASH,BMS ANTI-LAG,AEM METH KIT W/ FSB,BMS DCI,VRSF CHARGEPIPE & TIAL BOV,VRSF C@TLESS ***,FMIC,BMS OCC,BMS CABIN FILTER,MUFFLER CUSTOM BULLET,97RON PUMP GAS

Last edited by erwan35; 10-29-2014 at 11:28 AM..
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fryj00 fryj00 is offline
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Car: 2011 e92 n55 xDrive 6MT
Default 10-29-2014, 11:59 AM

Erwan35, according to your signature, your car makes 64 ft/lbs of torque

I'm guessing that isn't right.



2011 E92 N55 xDrive 6MT
Pure Stg 2 | DV+ | Pure inlet | MHD/JB4
Stage 2 lpfp | BMS Intake | Shifteck 4-inch "expansion chamber" | MXP catback
VRSF 7" FMIC | ECS 2-piece rotors
255/40-18 square | 8.5x18 ET35
Fortune Auto MSC-1 coilovers 8k/10k
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erwan35 erwan35 is offline
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Default 10-29-2014, 12:04 PM

64 torque of kg



_______________________________________\\\
BMW 335I E92 2007 RHD 6AT,FULL M3 BODYKIT,HYBRID TURBOS,BMS ADAPTER W/ 3.5BAR TMAP,VTT INLETS,JB4 G5ISO W/ MHD TREBILA FLASH,BMS ANTI-LAG,AEM METH KIT W/ FSB,BMS DCI,VRSF CHARGEPIPE & TIAL BOV,VRSF C@TLESS ***,FMIC,BMS OCC,BMS CABIN FILTER,MUFFLER CUSTOM BULLET,97RON PUMP GAS
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dallas_jeff dallas_jeff is offline
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Default 10-29-2014, 12:58 PM

It mainly makes sense to use map 6 on upgraded turbos. I'd stick with map 3 since you're using meth.
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FC4 FC4 is offline
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Default 10-29-2014, 01:27 PM

Question on Map 6 tuning...what exactly are the parameters open to tuning? One setup which I'd like to experiment with would be a map similar to the "M Map" on the S55 cars for my 435i with a rising boost target. Basically stock or close to stock boost values in lower RPMs with boost coming on stronger up top. Of course this won't result in a faster car, but now with map switching so easy, it would be nice to have a different feeling powerband.

Example, say we run proper fuel and Map 7 logs look great. Using the same fuel, could we simply adjust boost targets to climb by RPM (never exceeding Map 7 targets at any RPM point). Would everything else adjust accordingly?
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 10-29-2014, 01:33 PM

It can be played around with. It generally allows adjustment of the boost profile and then the JB4 will try to compensate the duty cycle curve, fueling, etc, to match. Not all boost profiles are plausible especially at higher RPM but its something you can play with as long as you know how to read your logs.


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Default 10-29-2014, 06:06 PM

I have used Map6 a lot but in my experience, Map7 boost levels/curve works best for all around performance if you have the supporting mods. There is really little to be gained going more aggressive than Map7 boost targets from 5k and above. I have tried more boost and there is very little gain which I have documented on the dyno. The gains were <10 hp from increasing boost 2-3 psi over Map7 in the 5k and above range. Not worth it. From 4.5k and lower, you can certainly increase boost vs Map7 which will yield a nice torque increase (20-30 lb ft seen on DJ), but imo it's not necessary for other than dyno glory.

Whatever you do, just make sure you log and have the mods and fueling to support more aggressive tuning. The best time to test these changes is on the dyno.


335is DCT
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erwan35's Avatar
erwan35 erwan35 is offline
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Default 10-29-2014, 08:22 PM

Yeah true that



_______________________________________\\\
BMW 335I E92 2007 RHD 6AT,FULL M3 BODYKIT,HYBRID TURBOS,BMS ADAPTER W/ 3.5BAR TMAP,VTT INLETS,JB4 G5ISO W/ MHD TREBILA FLASH,BMS ANTI-LAG,AEM METH KIT W/ FSB,BMS DCI,VRSF CHARGEPIPE & TIAL BOV,VRSF C@TLESS ***,FMIC,BMS OCC,BMS CABIN FILTER,MUFFLER CUSTOM BULLET,97RON PUMP GAS
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Bullitt1841 Bullitt1841 is offline
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Default 10-29-2014, 10:26 PM

Quote:
Originally Posted by FC4
One setup which I'd like to experiment with would be a map similar to the "M Map" on the S55 cars for my 435i with a rising boost target. Basically stock or close to stock boost values in lower RPMs with boost coming on stronger up top. Of course this won't result in a faster car, but now with map switching so easy, it would be nice to have a different feeling powerband.
I would put money on the likelihood of getting extremely bored with a map like that. Once you feel the low end torque gain, the "rising boost map" will feel really silly IMO. If you want that feeling, get a big single turbo


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SOLD: 2007 E90 335i | PS2's | JB4 | FBO | 160k+ miles on the car, 120k+ miles on the JB4

Log, log, then log some more...
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JB4UK JB4UK is offline
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Default 11-02-2014, 06:20 AM

The ///M map on the S55 is ideal for driving in the slippery conditions here in the UK at the moment.



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