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11-05-2003, 09:14 PM | #1 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
Intercooler Hose FAQ: Read if you are thinking of buying them!
Intercooler Hose FAQ
The primary purpose of an aftermarket intercooler hose is to replace the stock intercooler hose with a better flowing unit. Airflow testing indicates 14.2% better flowing capacity than the OEM piece. It can also decrease intake temperatures, increase reliability, and dress up the engine compartment. HP gain is 5HP. This figure is highly debated as different manufacturers use different dynos with different cars with different levels of mods. Which manufacturer is best? This topic is highly debated. There have been no reported consistent "bad" intercooler hoses on the market. Obviously, there may have been bad hoses sold, but not enough to report as "bad" overall. The current manufacturers of intercooler hoses that fit the OEM intercooler are: a. APS: "Y" hose only b. Perrin: 3 hose set c. Prodrive: "Y" hose only d. Samco: 3 hose set e. Vishnu: 3 hose set f. GP Moto: 3 hose set What intercooler hose material is best? Intercooler hoses are made from silicone and cast alloy. There is no irrefutable evidence that one material is better than the other. Obviously, heat soak levels are higher with the cast alloy model. Which intercooler hose construction method is best? There is no irrefutable evidence that one design is better than the other. With regard to the number of silicone plys, here is a breakdown: Perrin= 5 ply Prodrive= unknown ply Samco= 3 ply Vishnu= 3 ply GP Moto= unknown ply Which intercooler hose set has the best gains? There is no irrefutable evidence that any intercooler hose set has better gains than another. The consensus, if there is one, is they are all within 1-2HP or less, gain wise, of each other. Which particular hose gives the gains? The "Y" hose that attaches the turbo to the intercooler is the only hose that gives HP gains. The other two hoses, the throttle body hose and the recirculation hose, are nearly identical to the OEM size. Their purpose is mainly for under hood aesthetics. Are there any downsides to intercooler hoses? There have not been significant amounts of problems with intercooler hoses. Many find the stock "pinch clamps" that are installed on the recirculation hose to be lacking, both in their functionality and ease of use. Many consider their replacement with standard "worm gear type" hose clamps to be a cheap and more user friendly substitute. Where do I buy intercooler hoses? Every Subaru/Import performance store sells intercooler hoses. For purchasing, support your local economy or the NASIOC Vendors. How hard is it to install intercooler hoses? Allow around one hour for install time. Professional installation, depending on your area, is around $75. This is one vehicle modification that is very simple and can be successfully accomplished by even the greenest shade tree mechanic. How do I install intercooler hoses? Refer to the intercooler hose manufacturer's instructions. For intercooler hoses without instructions, below is a link to one of the better known intercooler hose installation instructions: scoobymods.com instructions (with photos) Should I reset my ECU after this mod? It is never a bad idea to perform an ECU reset after a mod. The traditional route is to disconnect the negative battery terminal, press the brake pedal for a few seconds to bleed the system of charge, and reattach. Some use the more advanced Vishnu Reset. Editors Note This post was created because I wasn't able to find a good intercooler hose FAQ. I came up with the text based on LOTS of searching here. Upon reading this you should have an idea of what type of intercooler hose set best suits your needs. The manufacturer is up to you. If you find an error in this FAQ, please PM me with factual details and I will update this post. Responses such as, "I have XXX's intercooler hose and it's great!" or "XXX's Intercooler Hoses leaked after 1 month" are not appreciated here, that is what the Car Parts Review Forum is for.
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Last edited by Unabomber; 08-15-2005 at 09:11 PM. |
11-05-2003, 11:39 PM | #2 |
Scooby Specialist
Member#: 41597
Join Date: Aug 2003
Location: Chicago
|
The infamous unabomber strikes again!
you rock! lots of stuff about hoses listed here that i was unsure of/had no idea about. so what's your next target gonna be? Intake FAQ? BOV FAQ ? all these FAQ's should be stickys! hey moderators where are you?! |
11-06-2003, 09:51 AM | #3 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
Thanks for the response. So far, all of my other posts have been stickied on the "FAQ and Threads of Note- Read me first!" Sticky at the top of this forum. If viewers like this one, then I assume the tradition will continue.
I don't know what my next project will be. So far, I have made these for all the mods I currently have. Sadly, $$$ and mod hating wife have forced me into an early mod retirement. The wife wants us to concentrate on modding our house. I hope to come up with some ideas for new mods and live vicariously on the board. I hope to choose my next virtual mod in the next few days, research it as if I was buying it, and post the results. What will be my virtual mod be??? PM me if there is something you want to see otherwise, I am thinking headers. Ron |
11-06-2003, 09:57 PM | #4 |
Scooby Newbie
Member#: 34280
Join Date: Mar 2003
Location: Lincroft, NJ
Vehicle:2003 WRX-Cobb II Silver |
Another great job!
Headers would be cool if you find the time But the best info would come if you actually continue doing the mods you write about. So tell the old lady that for the sake of NASIOC and reaserach you have to buy a set of headers. |
11-07-2003, 01:43 PM | #5 |
Scooby Guru
Member#: 15359
Join Date: Feb 2002
Chapter/Region:
MAIC
Location: Fairfax, VA
|
Have they fixed the fitment problem with the Samcos. I know that my y-pipe wasn't exactly a stock like fix, and required some work to get it to line up properly.
Duncan |
11-07-2003, 01:49 PM | #6 |
Scooby Specialist
Member#: 16876
Join Date: Mar 2002
Chapter/Region:
MWSOC
Location: St Paul, MN
Vehicle:2002 Impreza WRX WR Blue |
Heh...nice one. Of that one hour install time, 50 minutes of it is probably getting the tricky pinch clamp off the recirc hose (the clamp closest to the turbo inlet hose). Man that sucker was tough! No amount of WD-40 would let me turn the clamp, so I ended up using a combination of wrenches, prying, and pliers to eventually rip it into 3 pieces.
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11-07-2003, 02:07 PM | #7 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
I researched fitment issues like crazy and didn't find a consensus. There were a few Samco problems of old, but nothing too recent. None of the hoses are 100% perfect though. It takes a normal person 1 hour. It took me 2 because I have teh dumb. My struggle story, please no laughter! Header research.....classic! Your'e trying to get a brother in trouble aren't you!
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01-13-2007, 03:06 PM | #8 |
Scooby Newbie
Member#: 30734
Join Date: Dec 2002
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do they REALLY make a difference? 5hp is worth ~$100 but I want to be sure they really do something
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01-13-2007, 03:39 PM | #9 |
Scooby Specialist
Member#: 112992
Join Date: Apr 2006
Chapter/Region:
SCIC
Location: SoCal
Vehicle:2006 WRX TR Crystal Gray |
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02-13-2007, 02:35 AM | #10 |
Scooby Specialist
Member#: 117300
Join Date: Jun 2006
|
I would Like to add that according to people on nasioc
The 06 wrx and FXT ic has a differnet dimension y pipe The perrin one can be trimmed down to fit i hear and prodrive makes a specific one for the FXT that should fit (in theory) the 06 wrx+ Others not sure of fitment Any other info on this? |
02-23-2007, 09:02 PM | #11 |
Scooby Newbie
Member#: 118697
Join Date: Jun 2006
Chapter/Region:
TXIC
Location: Mcallen, TX
Vehicle:2002 WRX WRB |
EBAY y-pipe
What about the ebay y-pipes? I have searched for hours for a thread on them but haven't found one. Any exeperiences or comparisons anyone would like to make?
-Cory |
02-23-2007, 10:25 PM | #12 |
RIP 3/18/1965 to 1/10/2008
Scooby Specialist Member#: 91500
Join Date: Jul 2005
Chapter/Region:
MWSOC
Location: Schaumburg/Chicago
Vehicle:hmmm sr-30+640cc=? I has teh Endless BBK. |
pm him, he's good that way
why is this still open AND not a sticky? ibtl, FIRST PAGE |
02-25-2007, 05:33 PM | #13 |
Scooby Specialist
Member#: 98000
Join Date: Oct 2005
Location: MO
Vehicle:05 sti e85@420hp |
Is the wrx and sti IC inlet hose the same?
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03-13-2007, 04:38 PM | #14 |
Scooby Specialist
Member#: 60743
Join Date: Apr 2004
Chapter/Region:
MWSOC
Location: Fargo, ND
Vehicle:'95 Impreza L dirty and on jack stands |
sorry, i misunderstood the purpose of this thread.
Last edited by greg donovan; 03-13-2007 at 05:42 PM. |
03-13-2007, 04:42 PM | #15 |
Big Ron
Super Moderator Member#: 18062
Join Date: Apr 2002
Chapter/Region:
MAIC
Location: I can save you a ton of cash
Vehicle:on car parts so PM me b4 j00 buy |
NOT |
10-21-2007, 04:06 PM | #16 | ||
*** Banned ***
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Quote:
http://gpmototech.com/ Quote:
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11-25-2007, 10:57 AM | #17 |
Scooby Newbie
Member#: 4972
Join Date: Mar 2001
Chapter/Region:
NESIC
Location: Eastern MA
Vehicle:2007 WRX TR Garnet Red Pearl |
Great FAQ, a few additions.
* Prodrive Y-Pipe is 3-ply. * 06-07 WRX's must use the Forester turbo Y-pipe for exact fit. Earlier Y-pipes can supposedly be trimmed to fit, but why bother? * Factory Y-Pipe is held on by 3 traditional hose clamps. (At least on 07) They are slightly too small to be reused on the thicker silicone pipe. Buy some larger clamps ahead of time. |
11-26-2007, 10:36 AM | #18 |
Scooby Newbie
Member#: 149771
Join Date: May 2007
Location: IL
Vehicle:2010 WRX Sedan |
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11-26-2007, 01:03 PM | #19 |
Scooby Specialist
Member#: 89628
Join Date: Jun 2005
Location: Hawaii, Oahu
Vehicle:'02 Wagon VF39'd & Quick Racked |
Great FAQ as usual. You may want to either link to or include the "which IC hose do I need to make my STi TMIC fit my XX## turbo" thread. That question seems to be asked a lot and would dovetail nicely in here. The original thread I found was full of misinformation and confusing to wade through.
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01-30-2008, 06:50 PM | #20 |
Scooby Newbie
Member#: 155993
Join Date: Aug 2007
Location: NW 495 Ma
Vehicle:18 WRX Stage 2 Silver |
Bpm
I picked up a used BPM TMIC with no hoses. Any idea which brand/set/type I need?
nubie- |
05-17-2008, 03:25 AM | #21 |
Scooby Specialist
Member#: 136837
Join Date: Jan 2007
Chapter/Region:
SCIC
Location: Under Denver Airport
Vehicle:07 WRX TR |
Is engine management needed for this mod ?
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05-17-2008, 06:36 AM | #22 |
Scooby Specialist
Member#: 88288
Join Date: Jun 2005
Chapter/Region:
NESIC
Location: Central MA
Vehicle:.... At this point, even I have lost track. |
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11-29-2008, 12:26 AM | #23 |
Scooby Newbie
Member#: 178713
Join Date: Apr 2008
Chapter/Region:
MAIC
Vehicle:2008 WRX 5-Door Dark Grey Metallic |
where/how/what type of hose should i look for on an 08 WRX? will these fit any WRX or...?
(yes newbie) |
05-25-2011, 11:14 AM | #24 |
Scooby Newbie
Member#: 277760
Join Date: Mar 2011
Chapter/Region:
NESIC
Location: SW CT
Vehicle:2011 WRX Hatch SWP |
Intercooler Hoses for 2011 WRX
I've been looking online for Intercooler Hoses for my 2011 WRX. I can't seem to find any. Are they not available for 08+ models because they don't provide any benefit?
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08-04-2011, 01:54 AM | #25 |
Scooby Newbie
Member#: 65661
Join Date: Jul 2004
Chapter/Region:
MWSOC
Location: Chicago
Vehicle:126 whp, 141 wtq That's how I roll |
What he said.
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