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Old 09-10-2006, 12:00 PM   #1
O Stylee
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Default ewg just installed. Runs like ass

Just externally wastegated my GT30 and for some reason my car runs like complete ass. It only built about 6lbs of boost. The maps I am using are for an internally wastegated GT30. Even on a base map would it do this? or is there something seriously wrong?
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Old 09-10-2006, 12:39 PM   #2
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I am 99% sure you have to be tuned for an external wastegate setup for it to run decent at all. Get to your tuner asap. Sounds like a nice setup tho. What kind of car do you have?

edit: do you have a 6psi wastegate spring? thats why it won't go above that. Get a good tune and i think you should be good.
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Old 09-10-2006, 12:41 PM   #3
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Quote:
Originally Posted by WRX Shenanigans View Post
I am 99% sure you have to be tuned for an external wastegate setup for it to run decent at all. Get to your tuner asap. Sounds like a nice setup tho. What kind of car do you have?
+1 you need to customize your map for that. what EM are you using?
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Old 09-10-2006, 12:46 PM   #4
dan avoN7
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it sounds like you don't have any boost control hooked up to it. how do you have the wastegate lines hooked up? The boost values are completely different on an EWG compared to internal. Sounds like you are just running off wastegate spring pressure.
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Old 09-10-2006, 12:50 PM   #5
O Stylee
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it kinda sounds like the wastegate is stuck open a idle. It is the stock 6lb spring. Its just a massive exhaust leak comming from the wastegate.
04 WRX running UTEC
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Old 09-10-2006, 12:54 PM   #6
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Port 1 on the Perrin EBCS is going to the the top of the ewg. Port 3 is T'd off between the turbo and the side port of the wg
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Old 09-10-2006, 04:50 PM   #7
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My bet is that you forgot to install the firing ring on the wastegate or it's upside down. It's the small ring that presses up against the bottom "plunger" on the wastegate to seal it shut against the WG flange.
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Old 09-10-2006, 05:20 PM   #8
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It's definitely not due to tuning... your car should still run okay (not optimal), even on the old tune. You've either forgot the ring that seats against the valve, or your boost control lines are connected wrong.
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Old 09-10-2006, 06:16 PM   #9
KAX
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it sounds like your lines are hooked up correctly. Although i don't know which ports on the EBCS go where, so you could have them mixed up on that, but your T is correct and the top part is correct, as long as they go to the right ports on the EBCS.

just one question, is your car tuned for the EBCS?

Last edited by KAX; 09-10-2006 at 06:25 PM.
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Old 09-10-2006, 08:44 PM   #10
O Stylee
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Yes it is, According to Perrin Jeff thats how the ebcs hooks up to the ewg. I definatly did not remove anything from the wastegate or add a ring? Don't recall anything about that. I dont remember seeing a firing ring to install or anything like that.
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Old 09-10-2006, 08:49 PM   #11
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there most definitely should have been a ring to install. if you didn't get one, you need to. IIRC there was a thread awhile back about it, and the ring fixed the guys problem.
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Old 09-10-2006, 09:13 PM   #12
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looks something like this

and it goes between the flanges

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Old 09-10-2006, 09:21 PM   #13
O Stylee
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yeah that ring is still in the box stuffed at the bottom of one of those slots in the foam. Ill get around to installing it tomorrow. Hopefully that will fix the problem. Ill keep this thread updated for reference.

Last edited by O Stylee; 09-11-2006 at 12:38 PM.
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Old 09-12-2006, 04:39 PM   #14
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outcome?
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Old 09-12-2006, 04:47 PM   #15
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I bet the ring fixed it. he just had a massive leak without it.

I'm doing my install saturday. good to know.
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Old 10-07-2006, 04:12 PM   #16
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That ring happens to be the seat for the valve LOL....nothing like a massive exhaust leak to ruin your day. They usually tape it to the wastegate with a piece of red tape....
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Old 10-07-2006, 05:39 PM   #17
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If you just threw it on you messed up. Your exhaust housing on the turbo has to be modded either by welding or by the method mentioned above.
You also need to be tuned for it.

Prior, Propper, Planning Prevents Piss Poor Performance.

Jay-R
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Old 10-07-2006, 05:50 PM   #18
KAX
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you don't NEED to be tuned for it. itll run decent without the tune as long as your spring is the same as stock. but like every other modification, a tune is definitely recommended and you wont get much performance out of the mod without the tune.
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