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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > 2.5 Liter/Litre Factory Motor


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Old 10-16-2008, 09:35 PM   #151
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Default Re: The EWG FAQ (External Wastegate)

^^ I'm currently running the Flying Performance BCS along with a Hallman Evo MBC. Note this is on a internally gated stock VF43.

Benifits I see:
- using the bcs allows for part throttle part boost, and excellent around town driveability.

- When you want to go WOT, you get MBC performance.. fast spool-up and holds boost well.

- You can change your boost by adjusting a knob ( I have the in-cab controller ) and not have to mess with changing WGDC's to hit target boost.

- Boost will pretty much never spike over what your MBC is set to.. but using only the BCS can cause spiking at low rpm, high load/high throttle input.

- Shortens tuning time as you can quickly change to whichever boost level you want.

- Basically, MBC performance w/o PTFB problems and oem driveability.
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Old 10-16-2008, 09:51 PM   #152
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Default Re: The EWG FAQ (External Wastegate)

^^^
Cool bro, how'd you wire/hook that up along with the FP ebcs?
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Old 10-16-2008, 10:29 PM   #153
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Default Re: The EWG FAQ (External Wastegate)

Quote:
Originally Posted by FleaDog View Post
^^^
Cool bro, how'd you wire/hook that up along with the FP ebcs?
Exactly like in the first picture.. there are diagrams in the thread that show how an EWG can also be used with the setup, Im sure it's pretty much the same as the IWG as far as hose routing goes though.. It may be an over-the-top way of boost control, but I think it's the best and I love it.

new hybrid mbc/ebc method of boost control - NASIOC
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Old 10-20-2008, 06:18 AM   #154
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Default Re: The EWG FAQ (External Wastegate)

Anyone buy their EWG supplies (gasket, springs, hardware, etc.) from a particular place? I need some stuff and was going to order from forcedperformance.com.

Also, I need a 'bracket' to keep the VF39 IWG shut. Dont want to weld it. Like above, anyone use a particular clamp/brace? I saw grimmspeed had one for $25. I was also wondering if that would interfere with a turbo blanket?
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Old 10-20-2008, 06:21 AM   #155
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Default Re: The EWG FAQ (External Wastegate)

Quote:
Originally Posted by FleaDog View Post
Anyone buy their EWG supplies (gasket, springs, hardware, etc.) from a particular place? I need some stuff and was going to order from forcedperformance.com.

Also, I need a 'bracket' to keep the VF39 IWG shut. Dont want to weld it. Like above, anyone use a particular clamp/brace? I saw grimmspeed had one for $25. I was also wondering if that would interfere with a turbo blanket?
EWG:
Spooledmotorsports.com

Bracket:
area1320.com
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Old 10-20-2008, 08:43 AM   #156
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Default Re: The EWG FAQ (External Wastegate)

anyone running a helix catted dp with ewg, the cat is just bellow the bellmouth...so its pretty wide right there...
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Old 11-28-2008, 09:15 PM   #157
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Default Re: The EWG FAQ (External Wastegate)

great post :] answered all my questions
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Old 03-22-2009, 05:55 PM   #158
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Default Re: The EWG FAQ (External Wastegate)

Pardon this crude diagram, but I need some help on all the vacuum tube connections for my EWG setup with a 3-port boost solenoid + hallman MBC ('hybrid' setup - see: new hybrid mbc/ebc method of boost control - NASIOC), any help appreciated!

If someone could photoshop or use a drawing tool with the connections and "T's" or whatever is needed, or list "connect # to #" that'd be awesome.


Boost source (nipple on turbo - got omitted in diagram)



Kinda confusing, here's the list of all (total) connections:

(1) Turbo - bosot source
(2) EWG - bottom nipple
(3) EWG - top nipple
(4) Grimmspeed EBCS - port#1
(5) Grimmspeed EBCS - port#2
(6) Grimmspeed EBCS - port#3
(7) Hallman evo rx MBC - top port
(8) Hallman evo rx MBC - side port

Last edited by FleaDog; 03-22-2009 at 06:02 PM..
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Old 03-23-2009, 06:20 PM   #159
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Default Re: The EWG FAQ (External Wastegate)

Alright, herewe go again.
I picked up the grimmspeed 3-port
(to be used in combo with the hallman mbc)
on that, port#1 - route to intake or left off,
port#2 - wastegate actuator
port#3 - boost source

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Old 03-25-2009, 07:40 AM   #160
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Default Re: The EWG FAQ (External Wastegate)

For those of you who already have the Tial 44mm Wastegate and Dupe tube, where did you get it? How much? So far the cheapest I have found them for is $370.99 from http://www.maperformance.com/tial-44mm-wastegate.html and $66 from JSCSpeed.com. Looking to fit with the ATP 30R

Last edited by armyssoldierboy; 03-25-2009 at 08:03 AM..
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