02 WRX Vacuum/Coolant Hose Install Guide - Page 2

NWNoob · 08-24-2015, 04:23 PM

Thank you very much for the post. I just needed quick info on how much of which ID I needed to order to replace my ****ty hoses and the table made it super easy and the pictures will help out if I get confused along the way. Seriously, nicely done, thank you.

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Bmxican2028 · 11-24-2015, 12:49 PM

Awesome DIY write up!

86Dreams · 12-03-2015, 10:56 AM

Hypothetically, if you didn't have a check valve in your brake booster hose, what would happen? No brakes, vacuum leak, both?

Dentt42 · 12-08-2015, 04:49 PM

Quote:

Originally Posted by 86Dreams

Hypothetically, if you didn't have a check valve in your brake booster hose, what would happen? No brakes, vacuum leak, both?

You want there to always be a built up supply of vacuum in hte booster. The check valve keeps from "leaking" vacuum, i.e. getting positive pressure.

<looks at date> Man it's dead in here lately.

Davileet · 04-12-2016, 10:01 AM

Resurrecting a dead thread. But would these hose measurements work for a hawkeye as well?

TyranoDorisWRX · 04-16-2016, 09:57 PM

Are these cars picky about the vacuum hose diameter?
Does it have to be exact or just close?

Davileet · 04-19-2016, 11:16 PM

I just did these hose installs today. Boy, the joy of working for hours hunched over your engine. The sizes were fine for my 2007. I did feel that the new hoses for the top radiator reservoir, and just about all the hoses, were a bit smaller in diameter compared to what was removed. They fit, just the inside diameter has been made smaller.

I found the rats nest to be different in the 2007, but everything else was as expexted. I installed an Iag Aos today as well, which eliminated some of the hoses.

wtfmpl · 04-21-2016, 04:07 PM

Just finished this up last week via the mishimoto hose kit and some bulk 4/6mm Turbosmart Hoses. Not the easiest fix, bu (had to cut most of the smaller hoses off), but after I accidentally broke one petrified/formerly rubber vacuum line, I found myself replacing them all. Fit on the 92x Aero was fine.

awdsyco · 04-22-2016, 10:15 AM

What's the restrictor pill P/N and size?

tinted42 · 06-18-2016, 06:42 PM

Reppin the 03 bugeye. i just wanted to say thanks! i needed a pic to find where the proper placement of some hosing went after installing a turbo inlet... The specifics with the letters on the pics relay helped. Found them through google.

Anyways, much appreciated!

Subaru love

Tenshi · 06-19-2016, 12:35 PM

This is amazing, I needed this so badly. Thank you!

steezin_and_wheezin · 06-22-2016, 10:24 AM

Great thread!! Saving for future reference

LibertyHoonigan · 07-06-2016, 09:25 AM

This is a life saver. I told a friendly staff earlier I was concerned I wouldn't remember where all the hoses went. I took the car apart in November after i bought it and haven't really touched it since.

Fred Kay · 07-08-2016, 09:03 AM

A very thoroughly narrated and well illustrated thread. Thanks for this great write up!!

hondaeater69 · 07-27-2016, 09:03 PM

you got the coolant overflow hose at 19", can you say where it terminates inside the overflow? does it go all the way to the bottom of the overflow tank?

todd_fuller · 09-01-2016, 09:02 PM

Thanks for the excellent write-up. I appreciate the time and effort involved in documenting this so thoroughly.

For other readers that are looking for an alternate source of silicone hose, I located a reputable manufacturer, Flex Technologies siliconehose.com that had slightly better pricing. I bought some additional sizes for other projects so that worked out better for me.

SerpentSlick · 10-10-2016, 02:06 PM

Quote:

Originally Posted by todd_fuller

Thanks for the excellent write-up. I appreciate the time and effort involved in documenting this so thoroughly.

For other readers that are looking for an alternate source of silicone hose, I located a reputable manufacturer, Flex Technologies siliconehose.com that had slightly better pricing. I bought some additional sizes for other projects so that worked out better for me.

On Flex's website that you suggested, I'm seeing 4mm, 6mm, but not 9mm or 12mm.

Did you with 10mm and 13mm?

Someone mentioned a tight fit and I wanna order the correct stuff.

Also, is there an Auto Parts Store that you guys are aware of that stocks the silicone hoses?

JfastWRX · 01-26-2017, 06:37 PM

Hello. I am in the process of doing this as well. I am replacing all the rubber hoses with silicon hoses. This thread has been very helpful. The only thing I would like to point out is that my tuner warned me against using non reinforced silicon hoses for the cooling system, and it would also be preferable to use reinforced hoses for the vacuum system in my opinion. Better safe than sorry.

05SilverDadWagon · 02-02-2017, 08:32 PM

How do you get the check valve into the new hose? My brake booster hose is cracked.

Tbruz · 02-05-2017, 12:27 AM

Great write-up , thanks

05SilverDadWagon · 02-05-2017, 01:48 AM

Quote:

Originally Posted by 05SilverDadWagon

How do you get the check valve into the new hose? My brake booster hose is cracked.

With some heat, rubbing alcohol, and a socket, I did get it.

zfort60 · 04-01-2017, 08:57 PM

Quote:

Originally Posted by 05SilverDadWagon

With some heat, rubbing alcohol, and a socket, I did get it.

It's probably too late but I used a Allen wrench that was the same size as the check valve. I was able to push it in far enough. A 3/8th extension would probably work too.

Swervey · 10-01-2017, 06:03 AM

Issue resolved

Scoobydoobydude · 10-08-2017, 12:19 PM

Wow brilliant and functional writeup. Thank you. No wonder I felt like I had rabies, they call it it the rats nest! This area is my nemisis!

pinci · 12-30-2017, 02:54 AM

OP how have the hoses held up since you have installed them? Anyone else who has run this kit have any issues? I haven’t heard of them before and as others mentioned earlier, the silicone isn’t reinforced like other companies (Samco, Mishimoto, etc..) which is somewhat of a concern. I’m looking to replace all my hoses and I really wanted to get the Samco Ancillary hose kit to match my Samco intercooler hose kit, but it seems like it’s just about impossible to get these days, not to mention near $300 + shipping if I were to special order it and it isn’t even as complete as the HSPI Motorsports kit, although they are very well known and race proven. I’m almost tempted to order all oem hoses, but they aren’t exactly cheap. Any input would be nice!

06-18-2016, 06:42 PM	#35
tinted42 Scooby Newbie Member#: 417401 Join Date: Mar 2015 Chapter/Region: SCIC Location: So Cal Vehicle: 2003 wrx PSM	unrelated shtuff Reppin the 03 bugeye. i just wanted to say thanks! i needed a pic to find where the proper placement of some hosing went after installing a turbo inlet... The specifics with the letters on the pics relay helped. Found them through google. Anyways, much appreciated! Subaru love

02-02-2017, 08:32 PM	#44
05SilverDadWagon Scooby Newbie Member#: 435576 Join Date: Dec 2015 Chapter/Region: MWSOC Vehicle: 2005 Wrx Wagon Crystal Grey Metallic	How do you get the check valve into the new hose? My brake booster hose is cracked. Last edited by 05SilverDadWagon; 02-02-2017 at 10:17 PM.

10-01-2017, 06:03 AM	#48
Swervey Scooby Newbie Member#: 224738 Join Date: Sep 2009 Chapter/Region: SCIC Vehicle: 2007 WRX	Issue resolved Last edited by Swervey; 12-04-2017 at 10:45 AM.

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08-24-2015, 04:23 PM	#26
NWNoob Scooby Newbie Member#: 428464 Join Date: Aug 2015 Chapter/Region: NWIC Location: Oregon Vehicle: 2002 WRX World Rally Blue	Thank you very much for the post. I just needed quick info on how much of which ID I needed to order to replace my ***ty hoses and the table made it super easy and the pictures will help out if I get confused along the way. Seriously, nicely done, thank you. Registered users of the site do not see these ads.

11-24-2015, 12:49 PM	#27
Bmxican2028 Scooby Newbie Member#: 372048 Join Date: Oct 2013 Location: Rockford, IL Vehicle: 2003 WRX Silver	Awesome DIY write up!

12-03-2015, 10:56 AM	#28
86Dreams Scooby Specialist Member#: 385256 Join Date: Mar 2014 Chapter/Region: NESIC Vehicle: '18 Giulia QV '21 Giulia Q4	Hypothetically, if you didn't have a check valve in your brake booster hose, what would happen? No brakes, vacuum leak, both?

04-12-2016, 10:01 AM	#30
Davileet Scooby Newbie Member#: 418261 Join Date: Apr 2015 Location: NOVA	Resurrecting a dead thread. But would these hose measurements work for a hawkeye as well?

04-16-2016, 09:57 PM	#31
TyranoDorisWRX Scooby Newbie Member#: 444931 Join Date: Apr 2016 Location: Dallas Vehicle: 2002 WRX Wagon Silver	Are these cars picky about the vacuum hose diameter? Does it have to be exact or just close?

04-19-2016, 11:16 PM	#32
Davileet Scooby Newbie Member#: 418261 Join Date: Apr 2015 Location: NOVA	I just did these hose installs today. Boy, the joy of working for hours hunched over your engine. The sizes were fine for my 2007. I did feel that the new hoses for the top radiator reservoir, and just about all the hoses, were a bit smaller in diameter compared to what was removed. They fit, just the inside diameter has been made smaller. I found the rats nest to be different in the 2007, but everything else was as expexted. I installed an Iag Aos today as well, which eliminated some of the hoses.

04-21-2016, 04:07 PM	#33
wtfmpl Scooby Newbie Member#: 429658 Join Date: Sep 2015 Chapter/Region: Tri-State Location: Philadelphia, PA Vehicle: 2005 Saab 9-2x Aero	Just finished this up last week via the mishimoto hose kit and some bulk 4/6mm Turbosmart Hoses. Not the easiest fix, bu (had to cut most of the smaller hoses off), but after I accidentally broke one petrified/formerly rubber vacuum line, I found myself replacing them all. Fit on the 92x Aero was fine.

04-22-2016, 10:15 AM	#34
awdsyco Scooby Newbie Member#: 343685 Join Date: Jan 2013 Chapter/Region: BAIC	What's the restrictor pill P/N and size?

06-19-2016, 12:35 PM	#36
Tenshi Scooby Newbie Member#: 86201 Join Date: May 2005 Chapter/Region: MAIC Location: Huntington, WV Vehicle: 2002 Impreza WRX WRB	This is amazing, I needed this so badly. Thank you!

06-22-2016, 10:24 AM	#37
steezin_and_wheezin Scooby Newbie Member#: 112218 Join Date: Apr 2006 Chapter/Region: MAIC Location: blacksburg Vehicle: 1999 Impreza 2.5RS Rally Blue Pearl!	Great thread!! Saving for future reference

07-06-2016, 09:25 AM	#38
LibertyHoonigan Scooby Newbie Member#: 448735 Join Date: Jun 2016	This is a life saver. I told a friendly staff earlier I was concerned I wouldn't remember where all the hoses went. I took the car apart in November after i bought it and haven't really touched it since.

07-08-2016, 09:03 AM	#39
Fred Kay Scooby Newbie Member#: 386095 Join Date: Mar 2014	A very thoroughly narrated and well illustrated thread. Thanks for this great write up!!

07-27-2016, 09:03 PM	#40
hondaeater69 Scooby Guru Member#: 60324 Join Date: Apr 2004 Location: soon to be somewhere else Vehicle: 1998 RS	you got the coolant overflow hose at 19", can you say where it terminates inside the overflow? does it go all the way to the bottom of the overflow tank?

09-01-2016, 09:02 PM	#41
todd_fuller Scooby Newbie Member#: 79004 Join Date: Jan 2005 Chapter/Region: TXIC Location: Austin, TX Vehicle: 2005 Impreza WRX STi Crystal Grey	Thanks for the excellent write-up. I appreciate the time and effort involved in documenting this so thoroughly. For other readers that are looking for an alternate source of silicone hose, I located a reputable manufacturer, Flex Technologies siliconehose.com that had slightly better pricing. I bought some additional sizes for other projects so that worked out better for me.

01-26-2017, 06:37 PM	#43
JfastWRX Scooby Newbie Member#: 461982 Join Date: Jan 2017 Chapter/Region: International Location: Italy Vehicle: 2002 WRX Cup Edition	Hello. I am in the process of doing this as well. I am replacing all the rubber hoses with silicon hoses. This thread has been very helpful. The only thing I would like to point out is that my tuner warned me against using non reinforced silicon hoses for the cooling system, and it would also be preferable to use reinforced hoses for the vacuum system in my opinion. Better safe than sorry.

02-05-2017, 12:27 AM	#45
Tbruz Scooby Newbie Member#: 417793 Join Date: Apr 2015	Great write-up , thanks

10-08-2017, 12:19 PM	#49
Scoobydoobydude Scooby Newbie Member#: 468311 Join Date: May 2017 Location: I live In NH Vehicle: 2003 WRX wagon World Rally Blue!	Wow brilliant and functional writeup. Thank you. No wonder I felt like I had rabies, they call it it the rats nest! This area is my nemisis!

12-30-2017, 02:54 AM	#50
pinci Scooby Newbie Member#: 444130 Join Date: Apr 2016 Location: Orange County Vehicle: 2002 Impreza WRX Midnight Black Pearl	OP how have the hoses held up since you have installed them? Anyone else who has run this kit have any issues? I haven’t heard of them before and as others mentioned earlier, the silicone isn’t reinforced like other companies (Samco, Mishimoto, etc..) which is somewhat of a concern. I’m looking to replace all my hoses and I really wanted to get the Samco Ancillary hose kit to match my Samco intercooler hose kit, but it seems like it’s just about impossible to get these days, not to mention near $300 + shipping if I were to special order it and it isn’t even as complete as the HSPI Motorsports kit, although they are very well known and race proven. I’m almost tempted to order all oem hoses, but they aren’t exactly cheap. Any input would be nice!