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keyap keyap is offline
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Default 04-23-2017, 09:45 AM

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Most boost I ever hit is 20.8psi with e50 and meth 50/50 with 75 add going off at 10 psi. But that's stock tmap. I'm installing the n20 next weekend.
PWM is maxed out almost everywhere where boost is >20psi. N20 TMap will not allow you to run more as the turbo is giving all its got.

For reference, stock TMap caps out at 21psi and although there's no real need for the N20 version with OEM turbo, it's always good to have a few psi headroom


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s (0.020")

Last edited by keyap; 04-23-2017 at 10:27 AM..
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Suckadeez Suckadeez is offline
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Default 04-23-2017, 10:35 AM

Quote:
Originally Posted by keyap
PWM is maxed out almost everywhere where boost is >20psi. N20 TMap will not allow you to run more as the turbo is giving all its got.

For reference, stock TMap caps out at 21psi and although there's no real need for the N20 version with OEM turbo, it's always good to have a few psi headroom
The car pulls really hard down low wonder how much torque I'm putting out. I just recent switched my meth mixture to 80/20 but haven't had time to do any pulls getting the car inspected. Figured I'd buy the tmap now before I got pure stage 2 soon


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Bours Bours is offline
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Default 04-23-2017, 04:58 PM

Quote:
Originally Posted by keyap
PWM is maxed out almost everywhere where boost is >20psi. N20 TMap will not allow you to run more as the turbo is giving all its got.

For reference, stock TMap caps out at 21psi and although there's no real need for the N20 version with OEM turbo, it's always good to have a few psi headroom
žim pwm 99 from 4k to 7k so i guess form 2k to 4k there would be torque to gain ? but at same time im guessing its useless since flooring it at 2k on 23 psi i will spin lol


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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Bours Bours is offline
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Default 04-23-2017, 07:04 PM

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Originally Posted by cnm135i
Remember that your turbo also need time to spool up so the only user scenario where you would benefit from running higher boost below 4000 is if you let the engine labor from ~2000rpm in a high gear. It is a fun kick in the pants but for everyday driving it will not make your car any faster.
Stop chasing that little bit of boost on stocker/PS1 - I already gave you every reason for going PS2 in the video I made for you
Haha ok i cant argue with that ! Im ordering ps2 thx for yout help im a bit more educated on tbe subject now


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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Default 05-14-2017, 11:46 AM

Quote:
Originally Posted by Suckadeez
Most boost Ive seen is 20.8psi with e50 and meth 50/50 with 75 add going off at 10 psi. But that's stock tmap. I'm installing the n20 next weekend.
Did you install n20 sensor ? I received it today but its raining for a few days can you tell me it you hit more than 20.8 psi now ?


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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135ilove 135ilove is offline
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Default 05-14-2017, 12:49 PM

only one way to find out. Dyno your car on the different setups and see the difference.
If you are trying for 22 psi to 23 psi on the stock turbo, I would try the pure turbos inlet as well, that could free up the turbo a little more.


2013 DCT Jet Black 135i
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135ilove 135ilove is offline
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Default 05-14-2017, 02:23 PM

Also a custom flash on the mhd by a reputable tuner can gain you a lot. I know twisted tuning hit almost 400 whp an almost FBO stock turbo n55 with just e30. So a custom tune could net you a lot imho


2013 DCT Jet Black 135i
-JB4 Stage 2 ISO/w Flex Fuel Wires-Fuel it Stage 3 Bucketless LPFP-PDU Port Injection-Big Boost 6564 Bottom Mount Turbo Kit-Big Boost Chargepipe-Active Autowerke-BOV-Injen SP Intake with Blox Velocity Stack and Turbo Guard Filter-VRSF 7.5 in Stepped Race Intercooler--BMS OCC/OCV/CF-N20 TMAP-N20 Plugs-Motul 300v 5W-40-Archoil 9100-Motul Mocool-Custom 3.5 inch Straight Pipe Exhaust-Stoptech Rotors/Fluid-PFC Track Pads-VMR 710-Toyo R888r-M4 Flywheel- SSP R Clutches
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Bours Bours is offline
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Default 05-14-2017, 02:42 PM

Quote:
Originally Posted by 135ilove
Also a custom flash on the mhd by a reputable tuner can gain you a lot. I know twisted tuning hit almost 400 whp an almost FBO stock turbo n55 with just e30. So a custom tune could net you a lot imho
well im doing a better ET and trap speed than guys with custom tunes from twisted tuning and wedge on their best fbo stock n55 tunes flash only

i dont know if its my particular car ( i know driver mode counts but ive seen many date ) and i see no reason to get a custom tune where im maxed out almost everywhere in the power band and timing is great and afr is great too...

rail pressure is too

btw im not sure inlet does something on stock turbo id like someone to test it maybe i will


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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Suckadeez Suckadeez is offline
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Default 05-14-2017, 02:56 PM

Quote:
Originally Posted by Bours
Did you install n20 sensor ? I received it today but its raining for a few days can you tell me it you hit more than 20.8 psi now ?
I did install it but have not had time to mess around with map 6 tho. on map 3 I haven't seen or noticed any difference.


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Default 05-14-2017, 03:02 PM

Quote:
Originally Posted by Bours
well im doing a better ET and trap speed than guys with custom tunes from twisted tuning and wedge on their best fbo stock n55 tunes flash only

i dont know if its my particular car ( i know driver mode counts but ive seen many date ) and i see no reason to get a custom tune where im maxed out almost everywhere in the power band and timing is great and afr is great too...

rail pressure is too

btw im not sure inlet does something on stock turbo id like someone to test it maybe i will
when I installed my pure inlet I felt the power came on a lot more smooth. boost felt like it came on more linear rather than flooring it and waiting for the boost to build and finally hit you. but this is all just from what I felt no logs to really prove it. plus it's nice to get rid of the cheap plastic oem inlet. with my injen intake it's stainless steel all the way to the turbo looks and sounds awesome


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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135ilove 135ilove is offline
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Default 05-14-2017, 04:54 PM

Quote:
Originally Posted by Bours
well im doing a better ET and trap speed than guys with custom tunes from twisted tuning and wedge on their best fbo stock n55 tunes flash only

i dont know if its my particular car ( i know driver mode counts but ive seen many date ) and i see no reason to get a custom tune where im maxed out almost everywhere in the power band and timing is great and afr is great too...

rail pressure is too

btw im not sure inlet does something on stock turbo id like someone to test it maybe i will
A custom tune on MHD is going to net gains everywhere over the standard bef mhd maps on here. Twisted tuning just released their latest dyno results like last week, so i dont think those guys have hit the track yet and the car they tuned wasnt even FBO so it is not a direct comparison


2013 DCT Jet Black 135i
-JB4 Stage 2 ISO/w Flex Fuel Wires-Fuel it Stage 3 Bucketless LPFP-PDU Port Injection-Big Boost 6564 Bottom Mount Turbo Kit-Big Boost Chargepipe-Active Autowerke-BOV-Injen SP Intake with Blox Velocity Stack and Turbo Guard Filter-VRSF 7.5 in Stepped Race Intercooler--BMS OCC/OCV/CF-N20 TMAP-N20 Plugs-Motul 300v 5W-40-Archoil 9100-Motul Mocool-Custom 3.5 inch Straight Pipe Exhaust-Stoptech Rotors/Fluid-PFC Track Pads-VMR 710-Toyo R888r-M4 Flywheel- SSP R Clutches
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Sicmadek Sicmadek is offline
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Default 05-14-2017, 05:07 PM

Quote:
Originally Posted by Bours
well im doing a better ET and trap speed than guys with custom tunes from twisted tuning and wedge on their best fbo stock n55 tunes flash only

i dont know if its my particular car ( i know driver mode counts but ive seen many date ) and i see no reason to get a custom tune where im maxed out almost everywhere in the power band and timing is great and afr is great too...

rail pressure is too

btw im not sure inlet does something on stock turbo id like someone to test it maybe i will
And what are your shift points?
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Jmwilson125 Jmwilson125 is offline
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Default 05-14-2017, 05:13 PM

Quote:
Originally Posted by Bours
well im doing a better ET and trap speed than guys with custom tunes from twisted tuning and wedge on their best fbo stock n55 tunes flash only

i dont know if its my particular car ( i know driver mode counts but ive seen many date ) and i see no reason to get a custom tune where im maxed out almost everywhere in the power band and timing is great and afr is great too...

rail pressure is too

btw im not sure inlet does something on stock turbo id like someone to test it maybe i will

I'd like to do this too. Anyone know how difficult the install is or if there is a diy somewhere?


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
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(#39)
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Bours Bours is offline
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Default 05-14-2017, 05:16 PM

Quote:
Originally Posted by keyap
Irrespective of other mods, that's not possible with an E Series N55 OEM turbo.

Pre PS2, even if I targeted 23, the best I could get to would be 20, maybe 21 if I was lucky, in the low to mid rpms, tapering to low teens in the upper rpms. When achieving this, PWM would be >90 indicating the turbo was pretty much maxed out
Ppl have been hitting 23 psi before right ?


335i x-drive 2011 e90 n55

ER chargepipe | performance line d.p | 90/10 bms meth kit | K&N drop in | JB4 + MHD pump flash | xhp stage 3 flash | PURE STAGE 2 turbo
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Suckadeez Suckadeez is offline
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Default 05-14-2017, 05:23 PM

Quote:
Originally Posted by Jmwilson125
I'd like to do this too. Anyone know how difficult the install is or if there is a diy somewhere?
install for the pure inlet is a breeze. took me 20 minutes while tidying up my engine bay. once you get everything apart it's just a screw and gasket seal holding it in place.


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Jmwilson125 Jmwilson125 is offline
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Default 05-14-2017, 05:28 PM

Quote:
Originally Posted by Suckadeez
install for the pure inlet is a breeze. took me 20 minutes while tidying up my engine bay. once you get everything apart it's just a screw and gasket seal holding it in place.
So with me doing my car fbo and meth myself it should also be a breeze is what you are saying. I am pretty mechanically competent, I just get nervous with mods sometimes with an expensive car under warranty haha.


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
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Suckadeez Suckadeez is offline
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Default 05-15-2017, 05:16 PM

Quote:
Originally Posted by Jmwilson125
So with me doing my car fbo and meth myself it should also be a breeze is what you are saying. I am pretty mechanically competent, I just get nervous with mods sometimes with an expensive car under warranty haha.
yeah I'd say so. if you were able to do your ** then this will be nothing. this is the best picture I have right now but it's right at the bottom of my intake. once the intakes off it's held on by one screw I believe. the first time it took some finagling to get it out iirc
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2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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keyap keyap is offline
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Default 05-16-2017, 09:16 AM

Quote:
Ppl have been hitting 23 psi before right ?
Not possible with the stock turbo, irrespective of other mods. Happy to stand corrected but, every log I've seen shows the turbo maxed out at 20/21psi. That's also the peak/spike psi with boost tapering in the upper rpms.

Quote:
So with me doing my car fbo and meth myself it should also be a breeze is what you are saying. I am pretty mechanically competent, I just get nervous with mods sometimes with an expensive car under warranty haha.
It's easy enough to do, just be careful with the o-rings. As a result of 'maximising' diameter, they're quite thin. If you need spares, it's part #9262K699on McMaster.com or just do a search for 2X60 Buna-N (Nitrile - NBR70) o-rings.


UK 2011 - E82- 135i - N55 - DCT

JB4 | BMS OCC | N20 TMap | Fuel-It! PI | AIC6 PI Controller | Fuel-It! Fuel Lines | Fuel-It! Stage 2 LPFP | Continental In-line E Sensor | ER Charge Pipe | Pure Stage 2 Turbo | Pure High Flow Inlet | GFB DV+ | Richter C'less D/Pipe | Berk Race Full Exhaust | MFactory Pro Helical LSD (75% Bias Ratio) | eDiff Disabled Via Coding | MFactory Solid Diff Bushes | Diff Lockdown Bracket | Custom 98G0B BEF | NGK 5992s (0.020")
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Bimmer_Boost Bimmer_Boost is offline
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Default 05-16-2017, 10:20 AM

Quote:
Originally Posted by keyap
Not possible with the stock turbo
People have been doing it for years but you don't stay up there that long.


2011 E92 335i Auto
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Suckadeez Suckadeez is offline
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Default 06-18-2017, 03:48 PM

just got around to installing my n20 tmap. was driving around and got to race a m4. pretty much neck to neck till about 90 when she started pulling slightly. m4 sounded amazing. checked my logs and looks like I'm hitting over 21 psi for a short period. this is one e50 and 80/20 meth
Attached Files
File Type: csv n20 tmap.csv (7.7 KB, 63 views)
File Type: csv n20tmap.csv (8.1 KB, 37 views)


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Sicmadek Sicmadek is offline
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Default 06-18-2017, 04:29 PM

Quote:
Originally Posted by Suckadeez
just got around to installing my n20 tmap. was driving around and got to race a m4. pretty much neck to neck till about 90 when she started pulling slightly. m4 sounded amazing. checked my logs and looks like I'm hitting over 21 psi for a short period. this is one e50 and 80/20 meth
Fuel pump crash in your near future. For e50 and meth i expected a better avg ign.
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Suckadeez Suckadeez is offline
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Default 06-18-2017, 04:52 PM

Quote:
Originally Posted by Sicmadek
Fuel pump crash in your near future. For e50 and meth i expected a better avg ign.
my avg ign usually fluctuates from 1.2-2.5 depending on my driving usually is sticks around 1.4. I have a upgraded lpfp and my hpfp seems to be holding up well. why do you expect the fuel pump crash?


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Sicmadek Sicmadek is offline
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Default 06-18-2017, 04:55 PM

Quote:
Originally Posted by Suckadeez
my avg ign usually fluctuates from 1.2-2.5 depending on my driving usually is sticks around 1.4. I have a upgraded lpfp and my hpfp seems to be holding up well. why do you expect the fuel pump crash?
Because your hpfp is at 10-11 for most of the log.
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Default 06-18-2017, 05:06 PM

Quote:
Originally Posted by Sicmadek
Because your hpfp is at 10-11 for most of the log.
thought those were typical values for wot pulls.


2011 335xi e92
deep sea blue metallic
Mods: ps2; cobb fmic; vrsf ⬇️pipe; phoenix racing cp; injen cai; pure inlet; fuel it stage 2 lpfp w/ sensor; jb4 w/mhd e85 bef; meth 90/10 do3 and do7 nozzles. n20 tmap. Alpina flash. Fuel it port injection e50
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Default 06-19-2017, 09:55 AM

11 is probably the lowest you want to see (IMO). It generally means that the HPFP is struggling to keep up with the demanded flow due to the higher E content.

In addition, to me it looks like you're running fairly lean. 13.6 vs the 12.5 which is what I would expect. That being said, I'm not that familiar with the E85 BEF, so I'm not sure what the AFR targets are, but to me that still seems lean.

You can try and change your meth ratio to 80/20 or 75/25 (Meth/H20) or more which should help provide some additional fuel which may help your HPFP values. But as I understand it, the best way to take advantage of the upgraded LPFP is to use TBI or PI.

Or, you could lower your E content, to give the HPFP a break, but you will most likely need to change your tune as well.


2011 335i - JB4 ISO | MHD E85 PI BEF | Exhaust Mods | CP | 5" stepped FMIC | BMS Meth Injection | BMS Intake | Pure Stage 2 | Pure Inlet | FF wires | Fuel It Stage 2 | DV+ | N20 TMAP | Ethanol mix
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