»  BC-BF Legacy Discussion »  Intake
#A vacuum hose reference for EJ22Ts

Custom Search
Login | Register




Post new topic Reply to topic  [ 90 posts ]  Go to page 1, 2, 3, 4  Next
Author Message
 Post subject: A vacuum hose reference for EJ22Ts
PostPosted: Mon Feb 16, 2004 12:20 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
I've been meaning to do this for a while... Today I drew up a diagram of EJ22T vacuum hoses:

http://www.surrealmirage.com/vrg3/vacuum/

I left off the IAC hose and the big BOV hoses since they're simple. I left off the PCV stuff since it's complicated. :)

Hopefully this will be useful for people doing swaps and/or replacing their hoses.

Please send me corrections if I got any of it wrong.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Last edited by vrg3 on Tue Jun 09, 2009 8:27 pm, edited 1 time in total.

Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 12:31 am 
Fourth Gear
Joined: Mon Oct 21, 2002 9:53 pm
Posts: 1208
Location: Ottawa, Ontario, Canada, Now Sioux Lookout
Perfect!! Thank you.

Mark,

_________________
1991 Turbo Sedan, Aspen White 5MT, Sold RIP
1994 Turbo Sedan, Crimson Pearl 5MT, from British Columbia-no rust!


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 12:33 am 
Knowledgeable
Knowledgeable
Joined: Mon Jun 16, 2003 11:20 pm
Posts: 9807
Location: Beverly, MA
Wicked awesome! (might as well talk like a Bostonian) I could have pieced it together from the manuals, but having the diameters is a real help!

Thanks.

Steve

_________________
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 12:50 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
You're welcome. :)

I pieced it together mostly from memory but then revised it with the service manuals, parts catalogs, and quick trips out to my car.

Metric hose can be hard to find, but I think these substitutions ought to do okay (especially if you use silicone since it's very flexible and stretchy):

3.5mm <-> 1/8"
4mm <-> 5/32"
5.5mm <-> 7/32"
7.5mm <-> 1/4" or 5/16"
10mm <-> 3/8" (though, since the brake booster hose needs a check valve, you may as well use an OEM hose)

I'd try to keep the boost control hoses as close as possible to stock diameter and length so the ECU's calibration remains correct.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 6:14 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
Update: I added to the page a separate diagram of the PCV system I made by combining two pages from the parts catalog.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 7:17 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 27019
Location: Houston, Tx
nice work!

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 8:09 pm 
Knowledgeable
Knowledgeable
Joined: Wed Oct 16, 2002 10:44 pm
Posts: 1310
Location: Northern Sonoma County
Great resource. Thanks vrg3!

-Brian

_________________
'04 PSM FXT


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Mon Feb 16, 2004 9:23 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
Thanks, guys.

Whichever of you is the first to make good use of it, I would really appreciate it if you could either confirm or correct all the info afterwards.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Wed Feb 18, 2004 1:10 am 
Knowledgeable
Knowledgeable
Joined: Tue Oct 15, 2002 8:16 pm
Posts: 4386
Location: SFCA
Lengths would be great, or a total amount to purchase if I wanted to replace it all.

Since my engine is in a thousand parts anyways I might as well.


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Wed Feb 18, 2004 1:31 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
The thing is, most of the stock hoses are vulcanized, so knowing their stock lengths won't necessarily be useful.

The next person to replace all the hoses with bulk hose can try to give us the lengths they used that worked without kinking or getting in the way of other stuff; I can add them to the diagram.

If you can afford it, I think you should consider buying some or all of the stock hoses new.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Wed Feb 18, 2004 5:32 am 
Lurker-King
Joined: Mon Nov 03, 2003 8:36 pm
Posts: 1051
Location: Moncton NB Canada
Very cool!!

now with those sizes I can replace em with silicone eventually.

Good job Vrg3

_________________
R I P-------- 91 Turbo 4EAT --------R I P


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Wed Feb 18, 2004 7:47 am 
Knowledgeable
Knowledgeable
Joined: Mon Jun 16, 2003 11:20 pm
Posts: 9807
Location: Beverly, MA
I need to do nearly all the hoses so I'll try to measure everything out. Engine is progressing slowly, though. Damn jobless recovery!

Steve

_________________
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Fri Feb 20, 2004 4:40 pm 
Knowledgeable
Knowledgeable
Joined: Thu Nov 07, 2002 3:59 am
Posts: 5207
Location: Cogan Station, PA
Sweet, good idea vrg3! :D

I too would like to eventually replace all my lines.

_________________
-Matt

'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE

Redlined wrote:
Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Feb 24, 2004 2:58 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
First correction: There's a 2mm restrictor in the wastegate bleed hose. I've updated the PNG and PDF.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Fri Feb 27, 2004 12:54 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
Wow, that restrictor is pretty important.

I had been running with hoses of approximately the right diameter but without the restrictor in the hose between the wastegate control solenoid and the resonator. Boost control didn't seem that precise; it seemed like it would spike a bit and vary in different gears or at different engine speeds. I tried cleaning out the solenoid and it helped a little, but...

Today I put a restrictor in (I drilled a 5/64" hole in a little piece of steel rod I had) and it really cleaned up the boost control a lot.

So anyone who has replaced their vacuum hoses but didn't notice the restrictor, I recommend replacing it. :) I would imagine that if you left out the union fitting in between the solenoid and compressor outlet it might show similar symptoms.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject: THANKS!!!!!!!
PostPosted: Mon Mar 01, 2004 2:13 am 
First Gear
Joined: Wed Aug 27, 2003 10:23 pm
Posts: 111
Location: Minnesota
I recently installed a DNA MBC. I got rid of the stock hose and replaced them with silicon. my boost was all over the place virtually uncontrollable
good thing i didnt throw away the restrictor i put it back in and wow 12psi
solid thanks!!!!

_________________
Proud owner of a 1991 Silver 5MT
Gold wrx wheels,Straight Exhaust, DNA Boost Controler 12 Psi, Ngk's, De-Snorked, Carbon fiber hood scoop in the werks
1991 White 5MT(Sold to Friend), AKA BINFORD




"KEEP IT REAL, KEEP IT SUBARU"


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 02, 2004 3:59 am 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
Huh, that's kind of odd... I would expect most MBCs to work best with simple, short, unrestricted tubing. You're not running your MBC along with the factory boost control, are you?

That's cool that it's behaving how you want though. :)

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 02, 2004 7:46 pm 
Knowledgeable
Knowledgeable
Joined: Mon Dec 16, 2002 3:20 pm
Posts: 1770
Location: Owings Mills, MD
Yeah, I don't have the restrictor in mine. It works fine, when I can boost.

Speaking of which, how do you get to hose 11 in the pcv vaccum tubing?

_________________
1991 Legacy Turbo (RIP)

2000 Celica GT-S


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 02, 2004 10:11 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
I think you can get at it if you just remove the alternator.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 02, 2004 10:48 pm 
Knowledgeable
Knowledgeable
Joined: Mon Dec 16, 2002 3:20 pm
Posts: 1770
Location: Owings Mills, MD
Gotcha.

I also noticed that Adam plugged the inlet for the PCV at the corner of the right angle of the inlet boot. Then there's a single inlet from the PCV valve into the bottom of the block. No T in that section.

What would this do to the operation of the PCV system?

_________________
1991 Legacy Turbo (RIP)

2000 Celica GT-S


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 02, 2004 11:52 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
I'm not sure; I don't fully understand the PCV system.

My guess, though, is that you're not getting positive crankcase ventilation when you're on boost. It looks like that fitting is where crankcase vapors get sucked in by the partial vacuum at the compressor inlet when manifold vacuum is absent.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue May 11, 2004 4:19 am 
Knowledgeable
Knowledgeable
Joined: Fri May 09, 2003 10:41 pm
Posts: 1971
Location: Hamilton Ontario Canada
vrg3 you see your pic of the vacum lines on the valve covers which one can i put a catch can on so i dont get oil in my turbo.

_________________
1993 Subaru Legacy 44B STi 4Cam 16Valve Turbo Intercooled AWD
EJ22T, STi EJ207 DOHC, Vi-PEC (Spare Autronic) @ 426.20HP / 394.94ft lb @ 00psi
Tuned By: Franz Diebold ( DIEBOLD AUTOSPORT ) @ NVauto


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Wed Sep 08, 2004 3:10 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
I just updated the diagram. There were two errors before -- the canister's main purge line was indicated to be on the wrong fitting, and the brake booster hose was labeled as 10mm rather than the 11/32" it actually is.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Mar 29, 2005 5:47 pm 
Fifth Gear
Joined: Sun Jun 22, 2003 2:52 am
Posts: 2281
Location: Williamsport, PA
It would be nice to have a BOM for these hoses too. If someone had a scanner and was so inclined they could scan some pages out of the factory service manual or Haines. If this has been done I apologize.

_________________
--Scott--

1991 - Rio Red SS


Profile  Offline
Reply with quote  
 Post subject:
PostPosted: Tue Apr 05, 2005 6:22 pm 
Vikash
Joined: Sun Nov 03, 2002 2:13 am
Posts: 12518
Location: USA, OH, Cleveland (sometimes visiting DC though)
By bill of materials, you mean a price for each of the part numbers? Cuz the service manuals don't have them.

Or do you mean lengths, so you can use bulk hose to replace them? Part of the problem is that you kind of have to reroute them if you don't use premolded hose.

_________________
"Just reading vrg3's convoluted, information-packed posts made me feel better all over again." -- subyluvr2212


Profile  Offline
Reply with quote  

Display posts from previous:  Sort by  

Post new topic Reply to topic  [ 90 posts ]  Go to page 1, 2, 3, 4  Next


Who is online

Users browsing this forum: No registered users and 1 guest

Panel

Top You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
Search for:
Jump to:  

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Dizayn Ercan Koc