The EWG FAQ (External Wastegate) - Page 7

C.J. · 12-27-2007, 08:09 PM

Quote:

Originally Posted by ATTI2D

Whatever I set the MBC to.

So you experience no fall off in boost? Are you still on stock vf39? I am really just looking for a reduced fall in boost from 20-17 or something instead of 20-13

ATTI2D · 12-27-2007, 08:20 PM

It holds 18.5 all day. Thats what I got it set to max. Its also protuned.
Yes stock snail also.

jasv11 · 12-27-2007, 11:39 PM

Quote:

Originally Posted by ATTI2D

It holds 18.5 all day. Thats what I got it set to max. Its also protuned.
Yes stock snail also.

Youve got a real good one

Mine only holds at 16.5 @ 7000 and my wastegate spring is 18 lbs

what gauge do you have?

could that pressure be reading from your gauge cause they are usually off 1 to 2 lbs than what is really being produced. You tuner would have the actual boost pressure readings from the ECU

jermdeez · 12-28-2007, 07:57 AM

Quote:

Originally Posted by jasv11

Youve got a real good one

Mine only holds at 16.5 @ 7000 and my wastegate spring is 18 lbs

what gauge do you have?

could that pressure be reading from your gauge cause they are usually off 1 to 2 lbs than what is really being produced. You tuner would have the actual boost pressure readings from the ECU

I think the vf39 will do about 18.5 w/o issues. Pretty sure I use to boost that on my catless st. 2 protuned

EarTears · 12-28-2007, 04:02 PM

I am also interested in everyone's thoughts on the Gruppe S EWG Up-Pipe. My only concern's are the fitment with a 4" bellmouth DP and that it appears to not come with a dump tube. What would happen if you ran an ewg without a dump tube? Is anyone using this Gruppe S UP, which appears to be a Helix UP?

Helix V3 Uppipe

520 · 12-28-2007, 04:09 PM

You dont have to use a dump tube, it just makes it quieter iirc

EarTears · 12-28-2007, 04:17 PM

Yeah I think I might need the dump tube. Does anyone know where you can buy just the dump tube by itself?

ATTI2D · 12-28-2007, 04:49 PM

Quote:

Originally Posted by jasv11

Youve got a real good one

Mine only holds at 16.5 @ 7000 and my wastegate spring is 18 lbs

what gauge do you have?

could that pressure be reading from your gauge cause they are usually off 1 to 2 lbs than what is really being produced. You tuner would have the actual boost pressure readings from the ECU

Ive got a defi boost plus the AP to read off.
Ill check my dyno stuff.

Grynchmeister · 12-31-2007, 08:37 PM

When running an EWG setup, would i be negating the benefit's of a bellmouth exhaust?

WRX4ME LE 482 · 01-14-2008, 10:23 AM

Alright I have 2 questions:

The air blowing out of the WG is hot as hell. From the pic a couple pages back, the dump tube runs right along side the DP. Does this heat up your system more? By system I mean intercooler and general underhood temps. I see it's aiming down, still seems like it may have a significant effect.

Would it be a good idea to extend the dump tube down to around the intermediate pipe? This way, heat under the hood wouldnt be an issue (dump tube heat anyways), and hopefully, it wouldnt be so loud. Also, it may help to keep your exhaust pipe warmer (probably negligeable) if it's kept close.

Thanks.

12-27-2007, 08:20 PM	#62
ATTI2D The Next Petter Solberg Feedback Score: 1 reviews Car: JBP 04 STi Fav Mod: going 35r!!! Location: LV PA Posts: 867 IWSTI Addict since: Feb 2007	Re: The EWG FAQ (External Wastegate) It holds 18.5 all day. Thats what I got it set to max. Its also protuned. Yes stock snail also.

12-28-2007, 04:02 PM	#65
EarTears Junior STI Driver Feedback Score: 0 reviews Car: 06 Subaru WRX STi Fav Mod: Me in the driver seat Location: Florida Posts: 87 IWSTI Addict since: Nov 2007	Re: The EWG FAQ (External Wastegate) I am also interested in everyone's thoughts on the Gruppe S EWG Up-Pipe. My only concern's are the fitment with a 4" bellmouth DP and that it appears to not come with a dump tube. What would happen if you ran an ewg without a dump tube? Is anyone using this Gruppe S UP, which appears to be a Helix UP? Helix V3 Uppipe Last edited by EarTears; 12-28-2007 at 04:18 PM..

12-28-2007, 04:09 PM	#66
520 IWSTI Club Level 1 Feedback Score: 1 reviews Car: 05 STi Fav Mod: Precision 6262 / Jorge Tuned Location: Michigan / Saint Louis Posts: 12,433 IWSTI Addict since: Oct 2005	Re: The EWG FAQ (External Wastegate) You dont have to use a dump tube, it just makes it quieter iirc

12-28-2007, 04:17 PM	#67
EarTears Junior STI Driver Feedback Score: 0 reviews Car: 06 Subaru WRX STi Fav Mod: Me in the driver seat Location: Florida Posts: 87 IWSTI Addict since: Nov 2007	Re: The EWG FAQ (External Wastegate) Yeah I think I might need the dump tube. Does anyone know where you can buy just the dump tube by itself?

12-31-2007, 08:37 PM	#69
Grynchmeister Junior STI Driver Feedback Score: 2 reviews Car: 07 OBP STi Fav Mod: Lead Foot Location: Azeroth Posts: 175 IWSTI Addict since: Jul 2007	Re: The EWG FAQ (External Wastegate) When running an EWG setup, would i be negating the benefit's of a bellmouth exhaust?

01-14-2008, 10:23 AM	#70
WRX4ME LE 482 Spec C Club Feedback Score: 0 reviews Car: '07 STi Limited #482 Fav Mod: Disabled seatbelt dinger Location: Mississippi Posts: 1,330 IWSTI Addict since: Mar 2007	Re: The EWG FAQ (External Wastegate) Alright I have 2 questions: The air blowing out of the WG is hot as hell. From the pic a couple pages back, the dump tube runs right along side the DP. Does this heat up your system more? By system I mean intercooler and general underhood temps. I see it's aiming down, still seems like it may have a significant effect. Would it be a good idea to extend the dump tube down to around the intermediate pipe? This way, heat under the hood wouldnt be an issue (dump tube heat anyways), and hopefully, it wouldnt be so loud. Also, it may help to keep your exhaust pipe warmer (probably negligeable) if it's kept close. Thanks.

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