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 question



Reply
 
Thread Tools Search this Thread
      01-17-2012, 03:51 PM   #1
Cromartie84
Private First Class
32
Rep
171
Posts

Drives: 2007 e92 6mt 335
Join Date: Jan 2012
Location: Asheville, nc

iTrader: (1)

Meth question

I have.

Car is stock pending its last warranty appointment.
Parts on order: 3"Charles's dp's, jb3, jb4 upgrade.

Was thinking about ordering the BMS meth kit as well, but I had some questions.
1. When running meth on a DD, how often is the meth used? Wot?
2. How often does it need to be refilled? Is there a meth gauge?
3. How easy/practical is meth for a DD?

Thank in advance
Appreciate 0
      01-17-2012, 03:58 PM   #2
Syndicategt
Brigadier General
Syndicategt's Avatar
United_States
153
Rep
3,730
Posts

Drives: 335i
Join Date: Sep 2009
Location: Nor Cal

iTrader: (11)

I daily drive with my mods below.

1 - Depends on how "spirited" you drive. I rarely go into boost over 6 psi unless I feel like blowing off steam. 1 Gallon of meth can last me up to 3 months just daily driving using 50/50 mix.

2 - See #1. PWM kit will use slightly less than a PPS. No volume guage, but I did a windshield wiper tank (see my install) with the outlet located just below my wiper tank resivior guage. So when my car tells me I'm low on wiper fluid, I know to stop spraying meth. I beleive the same goes for Shiv's and BMS's kit.

3 - Meth is good for the engine, however it does come with hazards. It can ignite if it comes in contact with anything hot (exhaust mani, turbos, etc), so you should inspect your system often to ensure it's running up to par. It has the potential to clean out the carbon in your intake manifold, however, there are mixed results on this.

-cheers
__________________
2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
Appreciate 0
      01-17-2012, 04:05 PM   #3
Cromartie84
Private First Class
32
Rep
171
Posts

Drives: 2007 e92 6mt 335
Join Date: Jan 2012
Location: Asheville, nc

iTrader: (1)

Thank you for the quick response, and great info.
Appreciate 0
      01-17-2012, 04:07 PM   #4
scottp999
Brigadier General
133
Rep
4,764
Posts

Drives: 4runner SR5
Join Date: Mar 2007
Location: MD

iTrader: (2)

Garage List
2007 BMW 335  [9.00]
1) you can set a boost controller to be progressive with the pump (not sure what the BMS kit comes with and the default settings). So you can set start psi to say 6 and max flow from the pump at 10 psi. When driving around town I rarely go into boost, so I would have to intentionally get over 6 PSI for it to use any meth.

2) I don't run a gauge because mine isn't a daily driver. I did try to install an in tank level switch, but it leaked, I took it out and put in a new tank. BMS has the WW kit so you could use that and the windshield washer fluid warning light would come on if you are low.

3) I'm not DD, but its pretty practical only if you want more power. Its a great alternative to having to use race gas each time you want to up boost over pump gas alone. See #1, its great that it isn't used until a specified PSI.

I think many people have issues with this car (or any) faster when the car is not garaged. Everything wears out faster - sensors, modules, fluid lines, including meth line, and batteries, due to the temp changes that come with storing a car outside.
Appreciate 0
      01-17-2012, 04:10 PM   #5
Syndicategt
Brigadier General
Syndicategt's Avatar
United_States
153
Rep
3,730
Posts

Drives: 335i
Join Date: Sep 2009
Location: Nor Cal

iTrader: (11)

Quote:
Originally Posted by scottp999 View Post
See #1, its great that it isn't used until a specified PSI.
Keep in mind, not all meth kits are boost based. Eventhough mine is technically a "PWM" kit, my flow is based off of injector duty cycle vs. boost.
__________________
2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
Appreciate 0
      01-17-2012, 04:19 PM   #6
scottp999
Brigadier General
133
Rep
4,764
Posts

Drives: 4runner SR5
Join Date: Mar 2007
Location: MD

iTrader: (2)

Garage List
2007 BMW 335  [9.00]
Quote:
Originally Posted by Syndicategt View Post
Keep in mind, not all meth kits are boost based. Eventhough mine is technically a "PWM" kit, my flow is based off of injector duty cycle vs. boost.
Yep, and I will be headed that way if COBB puts out some RB maps with meth on an HFS-3
Appreciate 0
      01-17-2012, 04:23 PM   #7
Syndicategt
Brigadier General
Syndicategt's Avatar
United_States
153
Rep
3,730
Posts

Drives: 335i
Join Date: Sep 2009
Location: Nor Cal

iTrader: (11)

Quote:
Originally Posted by scottp999 View Post
Yep, and I will be headed that way if COBB puts out some RB maps with meth on an HFS-3
Give Jeff a call. Tell him you want my setup with the custom bracket he made....it's money!
__________________
2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
Appreciate 0
      01-17-2012, 04:29 PM   #8
JamesM3M5
Some dude
United_States
92
Rep
1,780
Posts

Drives: E92 335i
Join Date: Sep 2011
Location: Northern VA

iTrader: (0)

I have a Vishnu PWM kit on my DD, and it is stored outside. Using the WW tank for 50/50 mix.

Technically, 50/50 meth/water is not flammable. I would not increase that concentration until I get a dedicated meth cell in the trunk. I would also not use plastic tubing for higher meth concentrations due to the risk of perforating and fire, but others have been fine. YMMV.

I use about a tank (approx 1 gal) every couple of weeks (10-15 days) or longer if I just don't use my right foot. Got pulled over the other night, cop let me off with a warning, so I'll be taking it easy for a while. I haven't had a ticket in forever, and I don't want one. Esp not the kind of speeds this thing is capable of in such a short time. My commute is 11 miles each way, and I drive about 1000mi a month running around town.
__________________
RRT
E92 335i/6MT with stuff and things
Appreciate 0
      01-17-2012, 07:10 PM   #9
cn555ic
cn555ic's Avatar
United_States
441
Rep
18,331
Posts

Drives: 335i
Join Date: Jun 2007
Location: US

iTrader: (6)

You would be surprised that if your driving normal, half the time your not even on boost high enough to activate the meth...Most have their meth kick on at 6-7 psi and normal driving will not even touch that...For a DD its not even an issue, what the issue with meth is the constant maintenance of the system. Getting a system with compression fittings as suppose to push fittings will help in keeping the constant vigilance of meth leaks..
Appreciate 0
      01-17-2012, 07:50 PM   #10
EastBayE90
Formerly (-(ellblazer420
EastBayE90's Avatar
United_States
48
Rep
703
Posts

Drives: 07 E90 335i M/T, 15 F80 M3 DCT
Join Date: Sep 2010
Location: SF East Bay, CA

iTrader: (0)

Garage List
Have had the Vishnu PWM meth kit in for almost 10 months now and not a single issue. No leaks, no check engine lights or codes, no issues with the failsafe and no maintenance what so ever. I just fill her up with 80/20 mix most of the time some times 50/50. Windshield washer tank will last me about 2 weeks of daily driving. With a commute of 52 miles a day. With the right kit and proper installation it makes meth a no brainier.
__________________

(410whp 445ft/lbs | DCI + Meth Only)
OpenFlash OTS Stage 1 Flash | Vishnu PWM Meth Kit | Vishnu DCI| Forge DVs
Appreciate 0
      01-20-2012, 08:36 PM   #11
a7med606
First Lieutenant
a7med606's Avatar
Bahrain
41
Rep
307
Posts

Drives: 1 ///M + F80 M3
Join Date: Nov 2011
Location: bahrain

iTrader: (0)

i have a question about the meth

i know nothing about the meth and how it works
i want to know if i don't have a piggyback tune
can i use the meth or will it work without a piggyback ??
if i only have cobb + DCI can i use the meth ??
because i read many people is using jb4 or procede + the cobb a/p
what i understood that is the meth will not work without a piggyback
am i wrong or thats correct ?

Thanx
Appreciate 0
Reply

Bookmarks


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 12:11 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