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  1. 11-30-2008 05:20 PM #1
    aaronamerica
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    look at this turbo???

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    anybody know why this turbo has two vac lines???

    1998 Audi A4 built 1.8t Quattro--MaxxEcu Standalone---ID1300cc injectors ---Gt3582 turbo---on E85 --- AEM fuel pump---


    2003 Audi Avant built bottom end 1.8t Quattro 5speed--Eurodyne Maestro---gt35 turbo--- On E85--- 870cc injectors--Walbro 450 fuel pump--19" Staggered iForged Daytona wheels

    2011 Audi Q5 Daily--H&R springs--Eurodyne Stage 1 tune
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  2. 11-30-2008 05:41 PM #2
    Rhinop21
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    Re: look at this turbo???

    Because its an ebay special.
    http://i200.photobucket.com/albums/a.../dopeaudi3.jpg
    1998 A4 sold

    1995 Talon tsi awd. 6 bolt swap.
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  3. 11-30-2008 06:08 PM #3
    big_greasy_taco
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    Re: look at this turbo???

    Wow that looks so jankity...
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  4. 11-30-2008 08:22 PM #4
    T3hD0gg
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    Re: look at this turbo???

    One for pushing the wastegate open with boost and the other to open it with vacuum? Who knows!
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  5. 11-30-2008 08:53 PM #5
    oneohone
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    Re: look at this turbo???

    Quote Originally Posted by Rhinop21 View Post
    Because its an ebay special.
    x2
    Daily - 00' Audi A4 1.8t Quattro 5mt Laser Red Avant
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  6. 11-30-2008 08:55 PM #6
    aaronamerica
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    Re: look at this turbo???

    ok anybody know seriously, lol I never seen anything like that
    1998 Audi A4 built 1.8t Quattro--MaxxEcu Standalone---ID1300cc injectors ---Gt3582 turbo---on E85 --- AEM fuel pump---


    2003 Audi Avant built bottom end 1.8t Quattro 5speed--Eurodyne Maestro---gt35 turbo--- On E85--- 870cc injectors--Walbro 450 fuel pump--19" Staggered iForged Daytona wheels

    2011 Audi Q5 Daily--H&R springs--Eurodyne Stage 1 tune
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  7. 11-30-2008 08:56 PM #7
    A4Rob
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    Re: look at this turbo???

    Probably to simulate a external wastegate. You can put a MBC on one? Who knows, I would stay away.
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  8. 11-30-2008 11:46 PM #8
    aaronamerica
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    Re: look at this turbo???

    thats what i was thinking
    1998 Audi A4 built 1.8t Quattro--MaxxEcu Standalone---ID1300cc injectors ---Gt3582 turbo---on E85 --- AEM fuel pump---


    2003 Audi Avant built bottom end 1.8t Quattro 5speed--Eurodyne Maestro---gt35 turbo--- On E85--- 870cc injectors--Walbro 450 fuel pump--19" Staggered iForged Daytona wheels

    2011 Audi Q5 Daily--H&R springs--Eurodyne Stage 1 tune
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  9. 11-30-2008 11:54 PM #9
    t1demont1
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    Re: look at this turbo???

    yeah, looks like its setup like external wg. one for controller, one for boost pressure
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  10. 12-01-2008 04:53 AM #10
    ShawFM
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    Re: look at this turbo???

    Quote Originally Posted by aaronamerica View Post
    ok anybody know seriously, lol I never seen anything like that
    Dual port waste gate actuator is on wikipedia -> "A dual port wastegate adds a second port on the opposite side of the actuator. Air pressure allowed to enter this second port aids the spring to push harder in the direction of closing the wastegate. This is exactly the opposite of the first port. The ability to help the wastegate remain closed as boost pressure builds can be increased. This also adds further complexity to boost control, requiring more control ports on the solenoid or possibly a complete second boost control system with its own separate solenoid. Use of the second port is not necessary. Secondary ports, unlike primary ports, cannot be simply attached to a boost control line and require electronic control to be useful. C02 can also be used to apply pressure to the second port, in order to control boost on a much finer level."
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  12. 12-01-2008 07:36 AM #11
    aaronamerica
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    Re: look at this turbo???

    thanks thats nice info, I just happened to be looking at those turbos and saw that and was like wtf lol
    1998 Audi A4 built 1.8t Quattro--MaxxEcu Standalone---ID1300cc injectors ---Gt3582 turbo---on E85 --- AEM fuel pump---


    2003 Audi Avant built bottom end 1.8t Quattro 5speed--Eurodyne Maestro---gt35 turbo--- On E85--- 870cc injectors--Walbro 450 fuel pump--19" Staggered iForged Daytona wheels

    2011 Audi Q5 Daily--H&R springs--Eurodyne Stage 1 tune
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