E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Meth on long run DD ?



Reply
 
Thread Tools Search this Thread
      01-11-2010, 11:01 AM   #45
coolingmist
Lieutenant
31
Rep
408
Posts

Drives: 2009 135I 2006 Lotus Elise
Join Date: Jan 2009
Location: Atlanta, GA

iTrader: (0)

it depends on what version of the JB+ you have. If you have the older one with the switch, you can do something similar to our diagram above, except you need to power the switch with a 5V source instead of 12V.

If you cant find a 5V source you can use a 12V, but will need a 3.3V resistor in line.

This would allow you to only inject when flowing correctly, if you turn the lower map on ,it will disable the meth but you will see boost. If you want to run meth on both maps just set the cmgs to inject on boost only.

CM
Appreciate 0
      01-11-2010, 12:51 PM   #46
zsapphire7
Colonel
zsapphire7's Avatar
United_States
104
Rep
2,368
Posts

Drives: 08 e92 M3
Join Date: Oct 2007
Location: SF Bay Area

iTrader: (21)

Quote:
Originally Posted by cn555ic View Post
Methanol is corrosive and harmful if its sits and lays there stagnant on the metal, but the methanol is atomized to the point it will be burned off by the heat of the engine and never sits and induce this corrosive behavior....
Yes thats what i thought... but i was asking about long term... Obviously because the levels are much smaller when atomized/burned quickly it wont be as bad as if it was just sitting there in our engine but over years, who can tell.... can anyone give insight on this over say, 10 years?

Any effects on our catts btw?

Im also thinking of what parts will be touched by the meth, intake pipes/manifold, valves, then the cylinder walls and top of the piston, orings? I assume after that its burnt and then out the exhaust, through our turbos..
Appreciate 0
      01-11-2010, 01:23 PM   #47
whn
Captain
whn's Avatar
Finland
88
Rep
783
Posts

Drives: Range Rover Sport
Join Date: Aug 2009
Location: Finland

iTrader: (3)

Quote:
Originally Posted by Former_Boosted_IS View Post
Until JB3 2.0 is released you will not be able to auto map switch based on flow. Manual map switching like we currently use is the route you will go.
yes I know but in trying to figure out that is it even possible to do it way I told.

Quote:
how do you switch to map 3 and map 7? Are you using a toggle switch or gas pedal?
I mean when using the when using new 2.0 version of JB3 which has auto map switching based on flow.


So I ask you guys again the same:

When meth is switched off and I've JB3 normally on map 3 and map 7 is the meth map. How I can be sure that JB3 won't switch to meth map (map 7) when meth is switched off?
__________________
MY12 Range Rover Sport Autobiography
Mods: Coming
E92 335i SOLD!
Mods: Stage 3+, FULLY LOADED
Appreciate 0
      01-11-2010, 01:36 PM   #48
Alex@AKMotorwerk
Alex@AKMotorwerk's Avatar
United_States
208
Rep
9,339
Posts

Drives: 2012 AW F10 535i
Join Date: Jun 2007
Location: Hillsborough, NJ

iTrader: (7)

Quote:
Originally Posted by whn View Post
yes I know but in trying to figure out that is it even possible to do it way I told.



I mean when using the when using new 2.0 version of JB3 which has auto map switching based on flow.


So I ask you guys again the same:

When meth is switched off and I've JB3 normally on map 3 and map 7 is the meth map. How I can be sure that JB3 won't switch to meth map (map 7) when meth is switched off?
If the meth system is turned off, there is no voltage signal being sent to the JB3 to "allow" it to switch maps. So it will stay on map 3. You can hook a laptop up to the JB3 if using 2.0 and confirm this, but there is no visual/audible confirmation on the dashboard or anything. You will just need to datalog when you first get everything installed and be confident in your tune and installer
Appreciate 0
      01-11-2010, 02:04 PM   #49
whn
Captain
whn's Avatar
Finland
88
Rep
783
Posts

Drives: Range Rover Sport
Join Date: Aug 2009
Location: Finland

iTrader: (3)

Quote:
Originally Posted by nj323ci View Post
If the meth system is turned off, there is no voltage signal being sent to the JB3 to "allow" it to switch maps. So it will stay on map 3. You can hook a laptop up to the JB3 if using 2.0 and confirm this, but there is no visual/audible confirmation on the dashboard or anything. You will just need to datalog when you first get everything installed and be confident in your tune and installer
Do I hook it to OBD port or directly to JB3? Mike told me that there's some kinda "special" cable for it. So I can see it from laptop while driving?

ps. your post was good help for me
__________________
MY12 Range Rover Sport Autobiography
Mods: Coming
E92 335i SOLD!
Mods: Stage 3+, FULLY LOADED
Appreciate 0
      01-11-2010, 02:20 PM   #50
Alex@AKMotorwerk
Alex@AKMotorwerk's Avatar
United_States
208
Rep
9,339
Posts

Drives: 2012 AW F10 535i
Join Date: Jun 2007
Location: Hillsborough, NJ

iTrader: (7)

Quote:
Originally Posted by whn View Post
Do I hook it to OBD port or directly to JB3? Mike told me that there's some kinda "special" cable for it. So I can see it from laptop while driving?

ps. your post was good help for me
Bavarian Techniq diagnostic scanning tool is connected to the OBD port... the new JB3 2.0 cable is connected directly to the JB3 and hooked to your laptop.

PS- no problem... here to help!
Appreciate 0
      01-11-2010, 04:38 PM   #51
coolingmist
Lieutenant
31
Rep
408
Posts

Drives: 2009 135I 2006 Lotus Elise
Join Date: Jan 2009
Location: Atlanta, GA

iTrader: (0)

Quote:
Originally Posted by whn View Post
yes I know but in trying to figure out that is it even possible to do it way I told.



I mean when using the when using new 2.0 version of JB3 which has auto map switching based on flow.


So I ask you guys again the same:

When meth is switched off and I've JB3 normally on map 3 and map 7 is the meth map. How I can be sure that JB3 won't switch to meth map (map 7) when meth is switched off?

Thanks, I detailed that earlier. You can switch based on flow with most of the JBs. If your JB is the older board that has the input for the toggle switch to switch maps the CMGS can switch maps based on flow with that version. The new version will be doing it as well, but using a different output from the CMGS.

Since the JB is going to switch maps based on the CMGS reporting back the flow, if the meth is switched off, it cant switch maps.

CM
Appreciate 0
      01-12-2010, 05:43 AM   #52
Former_Boosted_IS
Major General
307
Rep
5,175
Posts

Drives: 4 Wheels
Join Date: Aug 2007
Location: Planet Earth!

iTrader: (15)

Quote:
Originally Posted by whn View Post
yes I know but in trying to figure out that is it even possible to do it way I told.



I mean when using the when using new 2.0 version of JB3 which has auto map switching based on flow.


So I ask you guys again the same:

When meth is switched off and I've JB3 normally on map 3 and map 7 is the meth map. How I can be sure that JB3 won't switch to meth map (map 7) when meth is switched off?
This has to do with the way the map switch is setup. The failsafe systems are setup to output 12V only when the flow reaches a set window. What that means is the JB3 or Procede sees the 12V signal from the failsafe and changes maps. That also means at 0V, it defaults to the set pump map. Remember even if the system completely failed it would output 0V, so there is really no way you could get stuck in the methanol map. Actually if anything went catastrophically wrong then you would be stuck in the pump map.
Appreciate 0
Reply

Bookmarks

Tags
335, cmgs, coolingmist, jb3, meth


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



All times are GMT -5. The time now is 10:52 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST