N54Tech.com - International Turbo Racing Discussion
(#1)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default benefits of going over 21 psi ? - 04-21-2017, 05:42 AM

hey guys im currently n55 FBO minus intercooler on meth 95/5 20psi and just ran 12.360 ET @ 113mph as some of you may know.

I just bought a N20 sensor and adapter to go over 20 psi

Id like to know if there is potential of going even faster and making bigger numbers by running like 23 psi and adding E off course to get better timing

OR

past 20 psi on stocker there is nothing else to gain ? i know im pwm maxed out from 4700 rpm to 7000 rpm right now but will i get more torque or hp in the mid range or down low by doing so ? I wanna get my 12 flat before going PS2 let me know in the comments section below !


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
Reply With Quote
(#2)
Old
JB4OFF JB4OFF is offline
Junior Member
 
Posts: 121
Join Date: Nov 2016
Car: 340i
Default 04-21-2017, 06:36 AM

You would have to evaluate the log and see for yourself. I would probably switch to 100% meth content and run some e30, if you plan on doing that. After a certain point, you'll lose efficiency. I mean you can only push so much air out of a straw. Your basically at 12 flat. Just need a better 60ft. I wouldnt split hairs over .3 milliseconds...
Reply With Quote
(#3)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 04-21-2017, 07:36 AM

Quote:
Originally Posted by JB4OFF
You would have to evaluate the log and see for yourself. I would probably switch to 100% meth content and run some e30, if you plan on doing that. After a certain point, you'll lose efficiency. I mean you can only push so much air out of a straw. Your basically at 12 flat. Just need a better 60ft. I wouldnt split hairs over .3 milliseconds...
yea good info bud. In your opinion, past 21 psi am i loosing effiency ? e30 and 100 meth thats exactly what i was planning im guessing ill get more torque down low but nothing mid range and up (*maxed out and hp maxed out )

yea i need a 1.6 60ft ill practice on that

if this doesnt work at least ill have n20 sensor for my incoming ps2

feel free to give advice


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
Reply With Quote
(#4)
Old
JB4OFF JB4OFF is offline
Junior Member
 
Posts: 121
Join Date: Nov 2016
Car: 340i
Default 04-21-2017, 08:46 AM

Quote:
Originally Posted by Bours
yea good info bud. In your opinion, past 21 psi am i loosing effiency ? e30 and 100 meth thats exactly what i was planning im guessing ill get more torque down low but nothing mid range and up (*maxed out and hp maxed out )

yea i need a 1.6 60ft ill practice on that

if this doesnt work at least ill have n20 sensor for my incoming ps2

feel free to give advice
Any time brother. Again, idk you would have to look at you logs and see. If you have a vbox that will also be helpful. And, most importantly You need to judge how it feels from driving it since you know your car best.

I just don't want you to blow a turbo just for a time slip.
Reply With Quote
(#5)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 04-21-2017, 09:16 AM

Quote:
Originally Posted by JB4OFF
Any time brother. Again, idk you would have to look at you logs and see. If you have a vbox that will also be helpful. And, most importantly You need to judge how it feels from driving it since you know your car best.

I just don't want you to blow a turbo just for a time slip.
well said yea a vbox is in my plans for sure ( such useful data )

yea but to be honest i kinda want to wear it fast i dont really care cause i will upgrade to ps2 anyway . I just hope it doesnt bring down other important components around the turbo !


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
Reply With Quote
(#6)
Old
JB4OFF JB4OFF is offline
Junior Member
 
Posts: 121
Join Date: Nov 2016
Car: 340i
Default 04-21-2017, 09:27 AM

Quote:
Originally Posted by Bours
well said yea a vbox is in my plans for sure ( such useful data )

yea but to be honest i kinda want to wear it fast i dont really care cause i will upgrade to ps2 anyway . I just hope it doesnt bring down other important components around the turbo !
If the cars maintenance is all up to date and is healthy. Then fiddle with it. Up it until you get a negative reaction. Take it 1/2 psi at a time lol
Reply With Quote
(#7)
Old
Jmwilson125 Jmwilson125 is offline
Junior Member
 
Posts: 164
Join Date: Jun 2016
Car: M235i
Default 04-21-2017, 09:41 AM

Quote:
Originally Posted by Bours
hey guys im currently n55 FBO minus intercooler on meth 95/5 20psi and just ran 12.360 ET @ 113mph as some of you may know.

I just bought a N20 sensor and adapter to go over 20 psi

Id like to know if there is potential of going even faster and making bigger numbers by running like 23 psi and adding E off course to get better timing


OR

past 20 psi on stocker there is nothing else to gain ? i know im pwm maxed out from 4700 rpm to 7000 rpm right now but will i get more torque or hp in the mid range or down low by doing so ? I wanna get my 12 flat before going PS2 let me know in the comments section below !

What are your jb4 methanol settings if you don't mind me asking. I am in a similar boat right now. Fbo e30 meth50/50

So far I have only hit low 18 psi on additive 75. However, I don't want to wear my turbo out, I decided not to go PS2.


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
Reply With Quote
(#8)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 04-21-2017, 09:55 AM

Quote:
Originally Posted by Jmwilson125
What are your jb4 methanol settings if you don't mind me asking. I am in a similar boat right now. Fbo e30 meth50/50

So far I have only hit low 18 psi on additive 75. However, I don't want to wear my turbo out, I decided not to go PS2.
i put additive 50

meth safety 0

meth flow 7.5 psi

meth trigger 0

its weird that u only hit 18 if additive is at 75 might have a boost leak

may i ask why no ps2 ?


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
Reply With Quote
(#9)
Old
Jmwilson125 Jmwilson125 is offline
Junior Member
 
Posts: 164
Join Date: Jun 2016
Car: M235i
Default 04-21-2017, 11:17 AM

Quote:
Originally Posted by Bours
i put additive 50

meth safety 0

meth flow 7.5 psi

meth trigger 0

its weird that u only hit 18 if additive is at 75 might have a boost leak

may i ask why no ps2 ?
Looking at the chart Terry posted it shows 75 additive targets 19.8 if ign avg is 1.5 or below. My ign avg has been between 2.5 and 3. I suspect it will be a little lower with a tad more e85.

No PS2 mostly because of cost. I'm young and bought an expensive car and modded under warranty. I am playing with fire as is, I don't think I want to play with the inferno just yet.

It is not out of the question but as of right now I am pretty happy with performance. Just trying to maximize the benefit of the wmi setup that I just added


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
Reply With Quote
(#10)
Old
JB4OFF JB4OFF is offline
Junior Member
 
Posts: 121
Join Date: Nov 2016
Car: 340i
Default 04-21-2017, 10:51 AM

Quote:
Originally Posted by Jmwilson125
What are your jb4 methanol settings if you don't mind me asking. I am in a similar boat right now. Fbo e30 meth50/50

So far I have only hit low 18 psi on additive 75. However, I don't want to wear my turbo out, I decided not to go PS2.
You need more meth. You might not be hitting targets because of an octane issue. Are still stock flash?
Reply With Quote
(#11)
Old
Jmwilson125 Jmwilson125 is offline
Junior Member
 
Posts: 164
Join Date: Jun 2016
Car: M235i
Default 04-21-2017, 11:40 AM

Quote:
Originally Posted by JB4OFF
You need more meth. You might not be hitting targets because of an octane issue. Are still stock flash?
Yes no flash tune, just jb4. I have not found a place to purchase meth yet, I have just been trying the boost juice so far. I have a couple bottles of heet, but I am hesitant to use that.


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
Reply With Quote
(#12)
Old
JB4OFF JB4OFF is offline
Junior Member
 
Posts: 121
Join Date: Nov 2016
Car: 340i
Default 04-21-2017, 12:20 PM

Quote:
Originally Posted by Jmwilson125
Yes no flash tune, just jb4. I have not found a place to purchase meth yet, I have just been trying the boost juice so far. I have a couple bottles of heet, but I am hesitant to use that.
Contact vp fuels and they should have dealer near by. Heet works but expensive if your sole purpose is meth content. I've used it before. You can also try denatured alcohol
Reply With Quote
(#13)
Old
Jmwilson125 Jmwilson125 is offline
Junior Member
 
Posts: 164
Join Date: Jun 2016
Car: M235i
Default 04-21-2017, 12:54 PM

Quote:
Originally Posted by JB4OFF
Contact vp fuels and they should have dealer near by. Heet works but expensive if your sole purpose is meth content. I've used it before. You can also try denatured alcohol
Ah I did look up VP fuels too. Shipping cost $120 for harzard fee. If there is one local I could pick up. I'll have to call. I'm in the Boston area.


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
Reply With Quote
(#14)
Old
Bimmer_Boost's Avatar
Bimmer_Boost Bimmer_Boost is offline
Legend
 
Posts: 1,241
Join Date: Oct 2014
Car: 2011 e92 335i
Default 04-21-2017, 04:02 PM

Quote:
Originally Posted by JB4OFF
I wouldnt split hairs over .3 milliseconds...
They are tenths of a second not milliseconds.

Quote:
Originally Posted by Bours
its weird that u only hit 18 if additive is at 75 might have a boost leak
Two things that will come into play. If he is running JB4 only, as he states below, then he will not be on the higher psi targets that you see with the MHD flash, therefor he needs a higher additive to target higher boost. The target builds off map 1 boost level. I saw the other was also mentioned. You will only see the full additive boost value if your AVG IGN is lower than 1.5.

What was odd about this is in your logs boost did not reduce when your AVG IGN went above 1.5

Quote:
Originally Posted by Jmwilson125
Yes no flash tune, just jb4.


2011 E92 335i Auto
12.0 @ 125MPH JB4
11.7 @ 120MPH E30 MHD / 0-60 3.66
Sold

2014 E84 X1 35i 12.85 @ 107MPH / 0-60 4.72 / 293 AWHP 305 AWTQ When stock
VRSF Chargepipe | BMS Intake | JB4 ISO | N20 TMAP | VRSF 7" Intercooler | ER Turbo Outlet |
Reply With Quote
(#15)
Old
Jmwilson125 Jmwilson125 is offline
Junior Member
 
Posts: 164
Join Date: Jun 2016
Car: M235i
Default 04-21-2017, 06:04 PM

Quote:
Originally Posted by Bimmer_Boost
They are tenths of a second not milliseconds.



Two things that will come into play. If he is running JB4 only, as he states below, then he will not be on the higher psi targets that you see with the MHD flash, therefor he needs a higher additive to target higher boost. The target builds off map 1 boost level. I saw the other was also mentioned. You will only see the full additive boost value if your AVG IGN is lower than 1.5.

What was odd about this is in your logs boost did not reduce when your AVG IGN went above 1.5
Target should be 19.8 I think I hit 18.2 with an avg ign of 2.3ish


2016 M235i EWG N55 - Empty exhaust - Charge Pipe - Intake - FMIC - WMI kit dual cm5+cm7 - JB4 FF and EWG Wires.
Reply With Quote
(#16)
Old
Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
Tuner
 
Posts: 18,440
Join Date: Oct 2012
Car: 135i
Default 04-21-2017, 12:13 PM

Nothing much to be gained except a little torque down low...that isn't going to help you much though. On the PS2, definitely!



Click on our banner to visit our website!
Video of our Stage 2 LPFP upgrade installation.

BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.
Reply With Quote
(#17)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 04-21-2017, 02:15 PM

Quote:
Originally Posted by Steve @ BMS/Fuel-It!
Nothing much to be gained except a little torque down low...that isn't going to help you much though. On the PS2, definitely!
stocker was a nice story on to the next one i guess ! thx steve ! ( ps2 )


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
Reply With Quote
(#18)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 04-23-2017, 08:16 AM

Anybody here been running 23-24 psi on stocker ?


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
Reply With Quote
(#19)
Old
Suckadeez's Avatar
Suckadeez Suckadeez is offline
Junior Member
 
Posts: 63
Join Date: Dec 2016
Car: 2011 335xi
Default 06-22-2017, 04:36 PM

Quote:
Originally Posted by Bours
Anybody here been running 23-24 psi on stocker ?
was messing around with my setup earlier checked my logs and I'm hitting 23 psi on the stock turbo for a little. cars still running lean it looks like tho.
Attached Files
File Type: csv 3rd-4th 23psi.csv (11.3 KB, 58 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
Reply With Quote
(#20)
Old
Bours Bours is offline
Junior Member
 
Posts: 496
Join Date: Jul 2015
Car: 335i x-drive n55 2011
Default 06-23-2017, 02:50 PM

Quote:
Originally Posted by Suckadeez
was messing around with my setup earlier checked my logs and I'm hitting 23 psi on the stock turbo for a little. cars still running lean it looks like tho.

Any quarter mile times !??? Nice log im at 21 psi on 100 meth and OK timing. I need a splash of E to get 23 psi with clean timing. How does the car feel ?


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
Reply With Quote
(#21)
Old
Suckadeez's Avatar
Suckadeez Suckadeez is offline
Junior Member
 
Posts: 63
Join Date: Dec 2016
Car: 2011 335xi
Default 06-23-2017, 04:28 PM

Quote:
Originally Posted by Bours
Any quarter mile times !??? Nice log im at 21 psi on 100 meth and OK timing. I need a splash of E to get 23 psi with clean timing. How does the car feel ?
no quarter mile times. closes track is about a 1 1/2 hours away so I don't make it there too often. the car feels amazing down low it just wants to take off. top end is same.


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
Reply With Quote
(#22)
Old
tho's Avatar
tho tho is offline
Junior Member
 
Posts: 201
Join Date: Jun 2015
Car: 2011 335i Convertible
Default 06-23-2017, 01:13 PM

Quote:
Originally Posted by cnm135i
AFR 14....I wouldn't be comfortable with that. My stock flash was running 12.7-13.

If the E-series log are read the same way as the F-series PWG then I'd say your HPFP looks solid. Trims are also on te negative side of 25 meaning that DME is pulling fuel.

I can max out the PS2 with CM5+7 100% meth and 93AKI so you definitely dont lack meth with dual DM7
I agree your AFR is way too lean. Although, my opinion is that he still needs fuel to bring the AFR down. I didn't realize that your meth ratio was already 80/20. 100% might help. Your car is going to feel the fastest it's ever been right before it pops.


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
Reply With Quote
(#23)
Old
Suckadeez's Avatar
Suckadeez Suckadeez is offline
Junior Member
 
Posts: 63
Join Date: Dec 2016
Car: 2011 335xi
Default 06-23-2017, 04:26 PM

Quote:
Originally Posted by tho
I agree your AFR is way too lean. Although, my opinion is that he still needs fuel to bring the AFR down. I didn't realize that your meth ratio was already 80/20. 100% might help. Your car is going to feel the fastest it's ever been right before it pops.
my meth tanks pretty low. I'll fill it up with some vp m1 turn down the boost and try to clean up my timing and afr. yeah I thought about that every time I saw the gauge hit 23, but the torque is addicting but not worth it really.


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
Reply With Quote
(#24)
Old
bNks334 bNks334 is offline
Junior Member
 
Posts: 75
Join Date: Jun 2016
Car: 135i (N55)
Default 06-28-2017, 08:02 PM

My n55 e30 custom tune hits 25-26 psi for 220 load. I picked up about 15-20whp and 30wtq between 3000rpms to 5000rpms over the e30 ots map that hits around 20psi. This is 4th gear I'm talking about. No reason jb4 can't do the same (timing might be an issue without a bef).

There is definetly gains to be had "under the curve." Limiting factor right now is that at 500wtq and 3000rpms the hpfp tanks. I'm out of fueling as hpfp can't flow enough at that Rpm to keep up. Having meth will probably help you with that. A lpfp upgrade did nothing for me for the aforementioned reason of high load at low rpms. My afr is around 12.6 so can be leaned out a bit still.
Reply With Quote
(#25)
Old
Peen Peen is offline
Junior Member
 
Posts: 145
Join Date: Mar 2016
Car: 2011 BMW 335i
Default 06-28-2017, 08:44 PM

Quote:
Originally Posted by bNks334
My n55 e30 custom tune hits 25-26 psi for 220 load. I picked up about 15-20whp and 30wtq between 3000rpms to 5000rpms over the e30 ots map that hits around 20psi. This is 4th gear I'm talking about. No reason jb4 can't do the same (timing might be an issue without a bef).

There is definetly gains to be had "under the curve." Limiting factor right now is that at 500wtq and 3000rpms the hpfp tanks. I'm out of fueling as hpfp can't flow enough at that Rpm to keep up. Having meth will probably help you with that. A lpfp upgrade did nothing for me for the aforementioned reason of high load at low rpms. My afr is around 12.6 so can be leaned out a bit still.
About the same here for my custom E40-50 map, 25psi and 220-230 load in 4th gear. Was running 23 psi with JB4 and MHD.

More boost early for sure helps, not sure on actual dyno numbers but it is slightly noticeable.


2011 335i / MHD E85 BEF / JB4 ISO / xHP Stage 3 TCU / M3 Control Arms / VRSF Piping/ Phoenix CP / YCW Coilovers 6K-18K / Enkei Raijin 18' Wheels / Michellin PSS
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright © 2007 - 2018, N54tech.com