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  1. #1
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    W/M Injection: 2 - Throttle Body: 0

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    First and original TB lasted 1-1.5 years with the meth injection. Second TB (used unknown mileage) lasted 6months.

    Some how the O-ring that seals the the butterfly shaft in the TB is breaking down thus allowing fluid to enter into the electronics causing complete failure. Only been using distilled water/VP meth and standard blue -40* washer fluid http://www.recochem.com/en/index.php...eld_washer_40c

    Luckily i can just pull her apart, dry up all the moisture and slap her back on. But as soon as i start spraying moisture gets in and screws it up again.

    Any one else running W/M having this problem? How long have you been running W/M with or without any failures?


    ~~~On a side note, please PM me if anyone has a spare TB
    Last edited by Trev; 03-02-2011 at 11:24 PM.
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  2. #2
    Veteran Member Four Rings kwimberly's Avatar
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    May 03 2008
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    28378
    Location
    Orlando

    I spray after the TB.
    Kevin W.
    2003 A4 1.8T quattro 5-spd. | USP lower | APR ECU w/ TT225's | APR TIP | test pipe | FMIC | Apikol snub | ecodes | Podi® | AWE sport pedals | JHM SSK/linkage | Forge 007 DV | '02 OEM sport suspension | OEM sport wheels | B6 S4 brakes w/ TyrolSport stiffeners | RS4 rear sway bar| Magnaflow 14829's| AVIC F700BT | hard-wired Passport 9500 | Side-mount trash bag hanging from shifter

  3. #3
    Veteran Member Three Rings cdn20valve's Avatar
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    Oct 09 2007
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    My Garage
    B6 A4 Avant
    Location
    North Toronto

    after spraying about 2.5 years by brothers tb failed on his gti. On my A4, i have had w/m for 2 years, no issue yet.
    Need some work done on your VW/Audi in the GTA? Former VW/Audi tech. Send me an IM, let me know what you need. Timing belts, brakes, etc... Quality work, save money.

  4. #4
    Veteran Member Four Rings AudiHere04's Avatar
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    Nov 21 2005
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    East Coast
    Items for Sale

    are you spraying before or after TB?
    I have a spare OEM TB...will PM you.
    Buy My Parts!
    K03 w/ lines & OEM manifold - $300
    OEM FlyWheel - Best Offer
    Precision 6262 Turbo - $1300

  5. #5
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    Quote Originally Posted by kwimberly View Post
    I spray after the TB.
    I might go that route, but i like having the added cooling effect with the nozzle further away.

    Spraying 1 regular sized nozzle about 18" from TB.

    Start psi=8 full=12
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  6. #6
    Veteran Member Four Rings diagnosticator's Avatar
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    Aug 26 2005
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    7741
    Location
    Seattle, WA

    You don't mention if you replaced the O ring or not, but I assume not. Is there some reason for not replacing the O ring?
    Vorsprung durch Technik

  7. #7
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    Its not easily accessible. I had to literally rip apart my fist one to get to the O-ring. The shaft is pressed in and there are some special (ring clips?) that hold other parts and the bearings in.

    http://www.audizine.com/forum/showth...light=Throttle

    AudiHere04 has a spare one that he's going to see me. Ill try and carefully dissemble this one to see if i can replace the O-ring. But last time i had to do quite a bit of damage to get it all apart....
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  8. #8
    Veteran Member Four Rings diagnosticator's Avatar
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    Aug 26 2005
    AZ Member #
    7741
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    Seattle, WA

    Gotchya.
    Vorsprung durch Technik

  9. #9
    Veteran Member Four Rings diagnosticator's Avatar
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    Aug 26 2005
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    Seattle, WA

    To add a second O ring to seal the throttle shaft reliably, ( provided you can disassemble and reassemble the throttle body without damaging the physical and functional properties,) Is to notch the throttle plate at the operating end of the shaft, with the notch slightly shorter than the thickness of an O ring plus a precision ground washer with the same OD with the ID just enough larger to fit on the throttle shaft without any slop, to fit into the notch of the throttle plate. On the free end of the throttle shaft, a ball bearing and a spring are added under the press in plug to press the shaft toward the operating end to compress the O ring for the seal between the throttle shaft and the TB bore.

    To remove the throttle plate screws, the end of the screws needs to have the punch staking ground away first, so that the screws will back out without any interference in the threads from the staking. For exact realignment of the throttle plate on the shaft, a pair of small taper pins should be fitted through the plate and shaft before removing the screws. A small arbor press and support blocks or a custom support block, will allow pressing apart and back together the pressed parts.

    I will draw up a sketch of the details described above, if you are interested in making a serious effort to add the second O ring seal.

    Clearly, using post TB WM injection, preferably one nozzle at each intake port runner inlet, is an easier and a quicker fix. Since WM is best used as an anti-detonation measure, and not as an increasing charge air density method, (although this still happens regardless.) the effectiveness of moving the nozzle down stream of the TB does not reduce overall performance as a practical matter. because the WM volume injected displaces the same amount of charge air/oxygen the maximum amount of WM on a ratio basis of the fuel flow, should be limited to only enough to prevent knock onset and detonation with the most ignition advance and boost pressure combination practical for operating conditions with your setup and tuning.
    Last edited by diagnosticator; 03-03-2011 at 12:07 PM.
    Vorsprung durch Technik

  10. #10
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    Absolutely!!! Wow that was good info diagnosticator

    I'm defiantly going to do this once my replacement has arrived. I have a basic understanding on how shes put together now that i ripped apart my first one.
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  11. #11
    Veteran Member Four Rings diagnosticator's Avatar
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    Aug 26 2005
    AZ Member #
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    Location
    Seattle, WA

    PM me when you have the replacement TB in hand.
    Vorsprung durch Technik

  12. #12
    Veteran Member Four Rings IVRINGS's Avatar
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    Mar 27 2009
    AZ Member #
    40422
    My Garage
    05 Audi A4 1.8T K04 6-Speed, 03 Audi A4 STB 2.7TT 5-Speed
    Location
    Audi Dublin Sales

    I also have one if you need one. Let me know since I have no use for it.
    Audi Enthusiast and MAG Audi Brand Specialist

  13. #13
    Veteran Member Four Rings A4SoftWalker's Avatar
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    May 13 2008
    AZ Member #
    28744
    My Garage
    02A4 1.8TQMS, 05V70R, BMW535i
    Location
    NoCal - EBay

    Just FYI - OP how much meth are u spraying? What size nozzle are u using?
    'SOFTWALKER MODS
    Do u have the Bentley/Dealer Manual & Tools it takes to work on YOUR car properly? Or...
    wanna continue to wing it & keep expecting manna to fall from AZ?
    Apikol>Snub/Diff APR>ExhTIP-TB hoses,Stg3 AWE>DV
    JHM>ShortShift-the works
    Misc> 18x8x9 235/265;HSport S4 barsTT225;Bosch-F6DTC;CarbonioV2+V6Intake Inlet;HFC;Podi-P2;ATP mani;GPopK04;034mounts
    SPEC>Stg3+,LWFW
    STaSIS>328/305mm,40/60,SL
    Personal Motto>Walk Softly Carry a Big Stick. YEAH I'M BACK!!!

  14. #14
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
    AZ Member #
    22840
    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    Using one 175ml/min nozzle
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  15. #15
    Senior Member Three Rings
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    Apr 12 2009
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    41097
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    Canada

    Methanol is a drying agent and its corrosive as well. You may be spraying too much meth in your mixture if your body is failing that soon.

  16. #16
    Veteran Member Four Rings BNZ TOY's Avatar
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    Oct 29 2006
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    My Garage
    1G FX35, 03 R6, B6 A4 MT6
    Location
    Vancouver

    scary.... I spray before the IC and just before the part that splits into 4 (going into the engine). I'm a bit worried now, my mixture is like 55meth/45water (maybe I'll back that up to 50/50)

    Another silver B6


    Go: K04-015 ~ Custom Intake and TIP ~ Forge Splitter ~ Neuspeed turbo-back ~ B&M SS ~ H&R Sport w/Bilsteins ~ S4 Sways ~ Eurocode FMIC ~ S4 Recaros ~ Adams Rotors ~ FX300 240mm LWFW ~ Snow Meth Inj ~ EURODYNE tuned

    Show: USP Front ~ Cupra R ~ Oetty Grill ~ S4 Trunklip ~ Euro Roof Lip ~ LED Tails ~ RS4 Reps ~ S4 doorblades ~ B7 rear valance ~ LED fogs ~ B7 DTM skirts ~ Euro RS4 Steering Wheel

  17. #17
    Veteran Member Four Rings Dolphin18T's Avatar
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    Denver, CO

    Quote Originally Posted by BNZ TOY View Post
    scary.... I spray before the IC and just before the part that splits into 4 (going into the engine). I'm a bit worried now, my mixture is like 55meth/45water (maybe I'll back that up to 50/50)
    You have a nozzle pre-IC? This is not a good idea. Methanol will pool in there and create a possible fire hazard and could also deteriorate your intercooler.
    -Ryan
    Maestro Tuned

    Now with slushbox-delete mod!



  18. #18
    Veteran Member Four Rings kwimberly's Avatar
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    Orlando

    I can't seem to stop a leak at the anti-siphon solenoid. It's located in the little space to the left of the steering fluid reservoir. I see meth dye on my coolant tank and nearby areas. Fire hazard?
    Kevin W.
    2003 A4 1.8T quattro 5-spd. | USP lower | APR ECU w/ TT225's | APR TIP | test pipe | FMIC | Apikol snub | ecodes | Podi® | AWE sport pedals | JHM SSK/linkage | Forge 007 DV | '02 OEM sport suspension | OEM sport wheels | B6 S4 brakes w/ TyrolSport stiffeners | RS4 rear sway bar| Magnaflow 14829's| AVIC F700BT | hard-wired Passport 9500 | Side-mount trash bag hanging from shifter

  19. #19
    Veteran Member Four Rings Dolphin18T's Avatar
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    Denver, CO

    Quote Originally Posted by kwimberly View Post
    I can't seem to stop a leak at the anti-siphon solenoid. It's located in the little space to the left of the steering fluid reservoir. I see meth dye on my coolant tank and nearby areas. Fire hazard?
    If it's mostly dried up and just the dye is left behind, you're fine. I would try to remedy the leak though.
    -Ryan
    Maestro Tuned

    Now with slushbox-delete mod!



  20. #20
    Veteran Member Four Rings kwimberly's Avatar
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    Quote Originally Posted by Dolphin18T View Post
    If it's mostly dried up and just the dye is left behind, you're fine. I would try to remedy the leak though.
    I've tried re-cutting the lines and inserting them into the solenoid - re-gooped everything, too. I did notice that since I have the nozzle sticking straight up out of the TB spacer, my hood is smashing down on it a little - I can see the indentation of the nozzle in the fire retardant material underneath the hood. I should probably rotate the spacer 90 degrees.
    Kevin W.
    2003 A4 1.8T quattro 5-spd. | USP lower | APR ECU w/ TT225's | APR TIP | test pipe | FMIC | Apikol snub | ecodes | Podi® | AWE sport pedals | JHM SSK/linkage | Forge 007 DV | '02 OEM sport suspension | OEM sport wheels | B6 S4 brakes w/ TyrolSport stiffeners | RS4 rear sway bar| Magnaflow 14829's| AVIC F700BT | hard-wired Passport 9500 | Side-mount trash bag hanging from shifter

  21. #21
    Veteran Member Four Rings Dolphin18T's Avatar
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    Quote Originally Posted by kwimberly View Post
    I've tried re-cutting the lines and inserting them into the solenoid - re-gooped everything, too. I did notice that since I have the nozzle sticking straight up out of the TB spacer, my hood is smashing down on it a little - I can see the indentation of the nozzle in the fire retardant material underneath the hood. I should probably rotate the spacer 90 degrees.
    Flipping the adapter plate would be a good idea. Does your setup still look like this?

    I would suggest putting a service loop in that line running to the solenoid. It may be getting tugged on, creating the leak?

    -Ryan
    Maestro Tuned

    Now with slushbox-delete mod!



  22. #22
    Veteran Member Four Rings kwimberly's Avatar
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    Orlando

    lol. That is my setup. Since that pic was taken I did loop the line from the solenoid to the TB. (and I have a FMIC, so that stock TB hose is gone.)
    Kevin W.
    2003 A4 1.8T quattro 5-spd. | USP lower | APR ECU w/ TT225's | APR TIP | test pipe | FMIC | Apikol snub | ecodes | Podi® | AWE sport pedals | JHM SSK/linkage | Forge 007 DV | '02 OEM sport suspension | OEM sport wheels | B6 S4 brakes w/ TyrolSport stiffeners | RS4 rear sway bar| Magnaflow 14829's| AVIC F700BT | hard-wired Passport 9500 | Side-mount trash bag hanging from shifter

  23. #23
    Veteran Member Four Rings BNZ TOY's Avatar
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    Oct 29 2006
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    My Garage
    1G FX35, 03 R6, B6 A4 MT6
    Location
    Vancouver

    Quote Originally Posted by Dolphin18T View Post
    You have a nozzle pre-IC? This is not a good idea. Methanol will pool in there and create a possible fire hazard and could also deteriorate your intercooler.
    seriously? i was told that the dual nozzle set up would be best....argh.... I have a hole there, not sure if i want to dig in there again....sigh.

    Another silver B6


    Go: K04-015 ~ Custom Intake and TIP ~ Forge Splitter ~ Neuspeed turbo-back ~ B&M SS ~ H&R Sport w/Bilsteins ~ S4 Sways ~ Eurocode FMIC ~ S4 Recaros ~ Adams Rotors ~ FX300 240mm LWFW ~ Snow Meth Inj ~ EURODYNE tuned

    Show: USP Front ~ Cupra R ~ Oetty Grill ~ S4 Trunklip ~ Euro Roof Lip ~ LED Tails ~ RS4 Reps ~ S4 doorblades ~ B7 rear valance ~ LED fogs ~ B7 DTM skirts ~ Euro RS4 Steering Wheel

  24. #24
    Veteran Member Four Rings Dolphin18T's Avatar
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    Quote Originally Posted by BNZ TOY View Post
    seriously? i was told that the dual nozzle set up would be best....argh.... I have a hole there, not sure if i want to dig in there again....sigh.
    Dual nozzle is good, but you should have one just post-IC and one post-throttle body.
    -Ryan
    Maestro Tuned

    Now with slushbox-delete mod!



  25. #25
    Veteran Member Four Rings BNZ TOY's Avatar
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    Oct 29 2006
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    My Garage
    1G FX35, 03 R6, B6 A4 MT6
    Location
    Vancouver

    Quote Originally Posted by Dolphin18T View Post
    Dual nozzle is good, but you should have one just post-IC and one post-throttle body.
    I see, I may have some work this weekend.

    Thanks!

    Another silver B6


    Go: K04-015 ~ Custom Intake and TIP ~ Forge Splitter ~ Neuspeed turbo-back ~ B&M SS ~ H&R Sport w/Bilsteins ~ S4 Sways ~ Eurocode FMIC ~ S4 Recaros ~ Adams Rotors ~ FX300 240mm LWFW ~ Snow Meth Inj ~ EURODYNE tuned

    Show: USP Front ~ Cupra R ~ Oetty Grill ~ S4 Trunklip ~ Euro Roof Lip ~ LED Tails ~ RS4 Reps ~ S4 doorblades ~ B7 rear valance ~ LED fogs ~ B7 DTM skirts ~ Euro RS4 Steering Wheel

  26. #26
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    My Garage
    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    Quote Originally Posted by shoppingcart111 View Post
    Methanol is a drying agent and its corrosive as well. You may be spraying too much meth in your mixture if your body is failing that soon.
    Been running the required mixture.

    Quote Originally Posted by Trev View Post
    Only been using distilled water/VP meth and standard blue -40* washer fluid http://www.recochem.com/en/index.php...eld_washer_40c
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  27. #27
    Veteran Member Four Rings EBG 18T's Avatar
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    Quote Originally Posted by Dolphin18T View Post
    Dual nozzle is good, but you should have one just post-IC and one post-throttle body.
    2nd this. I have my larger nozzle in the lower intercooler pipe just after the air leaves the fmic, then I have a smaller nozzle post throttle body. Works excellent.
    2014 VW Touareg - 4Motion - Midnight Blue

  28. #28
    Veteran Member Four Rings Dolphin18T's Avatar
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    Denver, CO

    Quote Originally Posted by EBG 18T View Post
    2nd this. I have my larger nozzle in the lower intercooler pipe just after the air leaves the fmic, then I have a smaller nozzle post throttle body. Works excellent.
    Eric, what size nozzles are you using?
    -Ryan
    Maestro Tuned

    Now with slushbox-delete mod!



  29. #29
    Veteran Member Four Rings EBG 18T's Avatar
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    Quote Originally Posted by Dolphin18T View Post
    Eric, what size nozzles are you using?
    175cc post tb and 225cc at the fmic. I need to upgrade to a larger size come spring. I think I will do 225cc post tb and 325cc down at the fmic.
    2014 VW Touareg - 4Motion - Midnight Blue

  30. #30
    Veteran Member Four Rings AudiHere04's Avatar
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    Nov 21 2005
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    Location
    East Coast
    Items for Sale

    you got pm
    Buy My Parts!
    K03 w/ lines & OEM manifold - $300
    OEM FlyWheel - Best Offer
    Precision 6262 Turbo - $1300

  31. #31
    Veteran Member Three Rings cdn20valve's Avatar
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    Oct 09 2007
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    My Garage
    B6 A4 Avant
    Location
    North Toronto

    3rd tb on my brothers gti. spraying 6" before tb.
    Need some work done on your VW/Audi in the GTA? Former VW/Audi tech. Send me an IM, let me know what you need. Timing belts, brakes, etc... Quality work, save money.

  32. #32
    Veteran Member Four Rings a4darkness's Avatar
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    West Sonoma County <-> SF, CA
    Items for Sale

    Seems like TB failure isn't so much a possibility but an eventuality when using WM on our cars. Or even a fire hazard (fix that ish Ben, scary stuff man).

    Realistically, what can be done to decrease likelihood of TB failure... just run water / non corrosive injection, anything else?

  33. #33
    Veteran Member Four Rings Dan[FN]6262's Avatar
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    Sep 12 2008
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    My Garage
    E30//B6 A4
    Location
    South Central PA

    -20*F washer fluid.
    |||The Awesome™
    |||CompTurbo 6262underconstruction
    |||1.8Liters of Fury
    |||36psi+Meth
    "nein-reis: My butt"

  34. #34
    Veteran Member Four Rings EErie B6's Avatar
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    May 30 2008
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    My Garage
    Honda HRX
    Location
    Fort Worth, TX

    Quote Originally Posted by EBG 18T View Post
    I have my larger nozzle in the lower intercooler pipe just after the air leaves the fmic, then I have a smaller nozzle post throttle body. Works excellent.
    has anyone tried running a reverse of this? The known TB failure issue has me wondering...

    for ease of math, lets say engine "x" needs 400cc.
    has anyone tried spraying say 25% (100cc) of this just after their FMIC to help ensure that it is 100% atomized/vaporized by the time it hits the TB... also allowing you to still have the benefits of chemical cooling

    then spraying the remaining 75% (300cc) post TB where there is no worry of TB compromise?
    -John

  35. #35
    Veteran Member Three Rings Trev's Avatar
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    Nov 25 2007
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    b6 a4tq, 95 Eagle Talon (Rip)
    Location
    British Columbia, Canada

    I'm going to try and add a second O-ring to the TB shaft as per diagnosticator's suggestion. Just need to go pick up my new TB, been way to busy to hop across the border to pick it up.
    Some Go, No show
    02 Qtip, Apr II+ 93Oct, tt-225 injectors, Ecode fmic, W/M Injection, Magnaflow 16601,TT225 Down Pipe, VMR test pipe, APR TIP, Forge 007, Vag-Com, Podi V2, RS4 LSB, ECS Snub, USP front lower, S4 Front Brakes, Slotted/Dimpled Rotors f/r, SS Lines f/r, 19x8.5 & 19x9.5 RPM 505's, RNS-E

    Wish List
    Custom fab intake heat shield, Custom fab system in trunk, Adjustable Coilovers, S4 blades, DTH side skirts

  36. #36
    Veteran Member Four Rings EBG 18T's Avatar
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    Quote Originally Posted by EErie B6 View Post
    has anyone tried running a reverse of this? The known TB failure issue has me wondering...

    for ease of math, lets say engine "x" needs 400cc.
    has anyone tried spraying say 25% (100cc) of this just after their FMIC to help ensure that it is 100% atomized/vaporized by the time it hits the TB... also allowing you to still have the benefits of chemical cooling

    then spraying the remaining 75% (300cc) post TB where there is no worry of TB compromise?
    That was the recomendation from Scott @ USRT. He was the suggested the staggered setup.

    I am swapping in a 225ml post TB and keeping my 225ml in the lower intercooler pipe. Moving the pump pressure up to 220psi tommarow too. Then more logs and software adjustment.
    2014 VW Touareg - 4Motion - Midnight Blue

  37. #37
    Veteran Member Four Rings EErie B6's Avatar
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    May 30 2008
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    29363
    My Garage
    Honda HRX
    Location
    Fort Worth, TX

    very nice Eric.

    not singling anyone out... im just curious in general...
    I wonder if there is a way we could see how well it distributes to all 4 cylinders when sprayed post TB only. I would think atomization would be poor with cyls 2 & 3 getting a bath. I know that nitrous from a single fogger nozzle is difficult to get an even distribution on certain long runner EFI intakes... you can even end up with fuel pooling in the intake on "wet" kits. Im wondering how water/meth travels.
    -John

  38. #38
    Veteran Member Four Rings Dan[FN]6262's Avatar
    Join Date
    Sep 12 2008
    AZ Member #
    32962
    My Garage
    E30//B6 A4
    Location
    South Central PA

    thats why I chose to spray mine before the TB
    |||The Awesome™
    |||CompTurbo 6262underconstruction
    |||1.8Liters of Fury
    |||36psi+Meth
    "nein-reis: My butt"

  39. #39
    Veteran Member Four Rings EErie B6's Avatar
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    May 30 2008
    AZ Member #
    29363
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    Honda HRX
    Location
    Fort Worth, TX

    what if we assume wrong? what if it atomizes and distributes well... then killing TBs would not be necessary. I would like to know this.


    Eric,
    when choosing nozzle sizes, how do you determine if you stand to benefit from going larger? what do you look for to tell you "thats enough"? What happens when you spray too much?
    -John

  40. #40
    Veteran Member Four Rings a4darkness's Avatar
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    Dec 01 2007
    AZ Member #
    23015
    Location
    West Sonoma County <-> SF, CA
    Items for Sale

    < listening >

    I've danced around the idea of W/M for some time now and was initially against it due to emissions concerns here in CA. But now that I see how easy it is to swap n and out, that's no longer a concern. But if the TB issues can be overcome... this becomes a no brainer mod ASAP.

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