|03-15-2004, 05:34 PM||#1|
Member Sales Rating: (0)
Join Date: Oct 2002
Location: undisputed COMBAT! championVehicle:
I also like (oYo)!!!!
Intercooler Hose Kit - Installation and Impressions
I hope that this article is informative and helpful to others. I personally got the Samco kit (I got an excelent deal), but I am sure that the Perrin set is just as good, and I have heard that it is possibly even better, I can't make any claims either way as I have only my own experience to weigh with.
I had casually observed in second gear that my boost would hit about .05 at right about 3krpm in second gear from a 2krpm start. floored it.
I also casually observed that in 3rd, 4th and 5th gears when passing that boost would hit max, then spike up momentarily to .1 and level off, with small spikes along the way.
also, durring these casual observations I would feel the tug at 5k that a lot of people have experienced, the perception of extra boost hitting.
Friday I sat in my house all day waiting anxiously for the Samco IC hoses to arive via FedEx ground, at 7 pm they arived. that was the longest part of the install, my hatred of fedex ground is increased one level after that.
it was too dark by the time they arived to actually do any work, so I unpacked it and checked to make sure everything was there, it was I cleaned out the inside of the main hose, there seemed to be some dirt on the inside walls. as well, there was a bead of silicone that was just kind of sitting there, that I cut off with an exacto knife, nothing worth worrying about just a little bit of stuff. I took pics and will post them up, but if you get them or have them you know what I am talking about.
saturday morning install, I followed the procedure listed on this site and others, removing clamps was not as hard as everyone made out, just got some needle nose pliers and it was out in 5 minutes, the big stumbler for me was getting the actual intercooler off with that stock hose off the turbo, it took about 10 minutes of wiggling and one busted knuckle to get it loose.
everything went back on with no worries and I used the original hose clamps, on the return line for the BOV/recirc hose I just angled the clamp towards the top so if I ever need to take it off again it will be easy going with regular pliers.
drove it around warmed it up did some low boost accel and checked hoses, all was good, did some high boost accel and checked hoses, all was good. it is good practice to double and tripple check your work, especially if this is the first time you are doing work on a car, or if you are out of practice like myself
I didn't notice any 'added hp' I did see that with the same casual observations as before install 2krpm 2nd gear, I got to .05 about 200rpm sooner, which is in my mind a good improvement.
under freeway accel, I observed a greatly increased smooth boost curve, meaning no pushes or hesitations, just smooth increase in boost. the spiking I was noticing before (under the full boost scenario) is completely gone.
I did notice one interesting fact, the boost was max a bit lower on the guage. I think that this is a product of the computer having learned with the stock hoses, now it must relearn with the samco set.
is this a good mod for everyone to perform?
I know a lot of people say no, or not as the first mod, or yes as first mod, but I did do it as my first mod. I didn't feel any definable hp gains, but I did notice a great increase in drivability, so take it fwiw.
I do think though, that if you take off your IC, and compaire the stock hoses next to Samco, or Perrin, or any other IC hose kit out there, that you will agree that the stock hoses are highly restrictive and very much a bottleneck in the system.
I also think that if you are the type that likes to tinker, and move things around, and are going to be thinking about taking off the intercooler for various installs in the future, that based on the ammount of time it took me to take off the IC with the stock hose, vs what it took me to take off the IC with the samco (I did have to take it off once to adjust the connections on the IC side) that this alone will be worth the money spent, especially if you can get a good deal on them.
anyway, I hope this write up has been informative I plan on doing one on each major mod, and even some of the smaller ones I guess . I don't think that there can be too many of these, as each person will have a different perspective and outlook on the quality, etc. if this was posted incorrectly in this forum, my humblest appologies.
update : an update (better late than never), the factory computer relearned the boost, about 200 miles after install the boost seemed to start going up to the same high level as it did previous to the install, so I assume that the computer had learned by that point when to open the wastegate.
again, there have been no definable gains in power, but I also did not do a dino compairison before and after and if it was a gain of about 4hp (which is what I have heard to expect) there is no way I would feel that.
at this point, if I had it to do over again, I would. reason being that the stock hose is just so small and restrictive, not to mention a hardened plastic that over time would have had to have been replaced anyway due to high heat and continual use.
some light reading, specifically note the bottom of the first page: http://forums.nasioc.com/forums/show...hreadid=173605
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Last edited by samagon; 06-01-2004 at 09:22 AM.
|03-15-2004, 05:43 PM||#2|
Member Sales Rating: (1)
Join Date: Dec 2001
Chapter/Region: South East
Location: Miami Springs, FLVehicle:
2005 STi/95 VX
Pastelito Racing / SFSOC
Thanks for the write up. This type of detail and personal experience is always welcome in my book. Especially since I will be doing this in the future.
|03-15-2004, 06:45 PM||#3|
Member Sales Rating: (4)
Join Date: Jun 2003
GTF off my lawn!
It sounds like your experiences went very much like mine when I did this same job. I noticed a small increase in spool-up and a slight improvement in mid-upper-R breathing/smoothness. Good write-up. We'll wait and see how your DP install goes now
|03-15-2004, 06:45 PM||#4|
Member Sales Rating: (8)
Join Date: Jun 2001
2014 Forester & BRZ
MBP & WRB
Nice write up!
|03-15-2004, 06:50 PM||#5|
Member Sales Rating: (4)
Join Date: Feb 2003
Location: lincoln, riVehicle:
2003 GGA MBP
12.9 / 105+
it seems like the ic hose mod has fallen out of popularity lately. i don't know why. it's a very good mod and comes highly suggested by me!
nice writeup. you'd notice a bigger difference in boost levels if you had an open loop system (like an MBC).
|03-15-2004, 09:22 PM||#7|
Member Sales Rating: (20)
Join Date: Dec 2002
Location: Spokane WAVehicle:
02 WRX MPB
No TGV + lots of P&P
I have been searching over the Private For Sale ads. When Samco IC hoses go up for sale thay get snatched up rather quickly.
I have worked on a car with Samcos and the Stock IC is so much easier to take off and put back on.
I hate dealing with that hard plastic stock Y pipe
|12-03-2005, 11:52 PM||#9|
Member Sales Rating: (18)
Join Date: May 2004
Chapter/Region: W. Canada
WI and all the goodies
The Perrin kit's blow off valve hose is too short for the STi and the IC hose has to be cut by 2/3, which isn't such a bad idea given the 1.5" lip/ridge of silicon on the inside of the tube at the y-junction
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