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Old 02-11-2003, 07:15 PM   #1
Newbaru
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Default Perrin VS. Samco I/C hoses?

Does anybody have an opinion on which are a better product? Seems like they are about the same price +/- $10. Also any preferences on the intake hose? I'm thinking that these will be my first mods.
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Old 02-12-2003, 01:51 AM   #2
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From what I understand it's like this:

5 ply silicone with the Perrin vs the 3 on the Samco. I have a feeling that 5 is just overkill, never heard any anyone splitting any aftermarket hose but does get you bragging rights.

Samco hoses have casting flaws on the inside which can reduce flow. Pretty damn sure that the Perrin hoses don't have any, but haven't seen any pics of them.

Another option is Vishnu hoses, these for sure don't have any casting flaws and should flow more than the Samcos, but are 3-ply like the Samcos.
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Old 02-27-2003, 07:52 AM   #3
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It's the silver wagon thread!

Anyway - all of the reviews/comparisons I have read state the Perrin is much nicer appearing than the Samco (better build quality) - I would have to guess that in terms of performance, there is a negligable difference between the two, particularly when the flow improvement over the stock plastic part is considered.

I can post an impression in a week or so - I have a new set of Perrin hoses en route to me as I type. (the Perrin kit also includes hose clamps which won't damage the silicone - not sure how much of a problem that is with using the oem hoses, but I am guessing that they wouldn't have bothered with the extra expense if it weren't at least somewhat of an issue...) Of the three pipes included in the kit, the only one which is supposed to matter is the y-pipe - the others are replacing already smooth, and in one case, very short, hoses.
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Old 03-02-2003, 08:23 PM   #4
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I needed to trim a ton of excess silicone from the inside of my Samco's

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Old 03-05-2003, 02:07 AM   #5
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The Samco's that I received, the 'Y' piece in particular, had numerous manufacturing defects such as inclusions and excess casting flaws. I will not use them and will try to return them.

For the $$$ spent I had expected better quality, MUCH better.
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Old 03-05-2003, 02:49 AM   #6
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I got my Perrin hoses today from MPJ Performance. Unfortunately, the box was missing the hose clamps that Perrin IC hoses are supposed to have. Mike at MPJ is looking into it for me.

While the Y IC hose isn't perfectly smooth on the inside (top right inlet hose in the picture below), nothing extrudes into the inlet path. I may stick the dremel inside and try to smooth out the sharp corners, but maybe they designed them this way on purpose?

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Old 03-05-2003, 10:02 AM   #7
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Cool...I saw that we were all on the MPJ vendor thread last week...me you and DrD.
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Old 03-05-2003, 12:18 PM   #8
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Any more thoughts on it?


And yeah, I've got a silver wagon, too.
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Old 03-05-2003, 12:29 PM   #9
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I'll throw Vishnu into the mix, fit well, clean inside, a few more bux, got mine with stage zero. Another option, I would go Perrin over Samco from all I've heard.
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Old 03-05-2003, 02:57 PM   #10
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Do the Vishnu hoses have any sharp edges on the inside at all? Is it completely smooth?
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Old 03-05-2003, 07:53 PM   #11
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I'd be interested in seeing a pic of the inside of the Perrin hoses. If anyone has a pic or knows of one please advise.
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Old 03-06-2003, 06:53 PM   #12
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Quote:
Originally posted by Uncle Scotty
The Samco's that I received, the 'Y' piece in particular, had numerous manufacturing defects such as inclusions and excess casting flaws. I will not use them and will try to return them.
Well - I got a set of the Perrin intercooler hoses (I am also waiting for the hose clamps which were supposed to be included - for others in the same boat as me, MPJ is shipping them on Friday) - there are some defects on the inside (looks like pits, sort of) - they are sort of a result of the forming process (sheets of silicone rubber with a fiber mesh reinforcement wrapped over a properly shaped mandrel - the voids are small air bubbles which were entrapped in the first layer) - there aren't that many of them, so I am not worried about it - they definitely aren't going to lead to failure or measureably degrade performance. There is a sharp corner on the inside of one leg of the Y joint in the middle of the pipe - I may or may not smooth it out (depends on how bored I get this weekend - I don't want to risk damaging the hose) - not much along the lines of flashing inside the pipe.

I would guess that the reason Samco has problems with flashing is the volume of stuff they produce - they make hoses for many more vehicles than Perrin (which pretty much only does the WRX) or Vishnu - in many cases, as production volume goes up, quality suffers somewhat...
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Old 03-06-2003, 07:03 PM   #13
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Thanks for the input DrD. If you ever happen to snap a pic, let me know. Thanks!
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Old 03-06-2003, 08:36 PM   #14
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I'll try to snap a pic, too. DrD's description of the hoses are spot on.
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Old 03-09-2003, 12:55 AM   #15
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Here is a picture off of the Vishnu site showing the inside of theirs and the Samco hoses - note all the flashing in the samco - also note the sharp corner inside the Vishnu - the Perrin hoses are similar in shape to the Samco, but look clean inside like the Vishnu (the Vishnu y-pipe is different than the Perrin and Samco - though it may be for a different application...)

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Old 03-09-2003, 01:30 AM   #16
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my samcos had crap casting all on the inside y hose,, had to dig em out...................
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Old 03-09-2003, 11:46 AM   #17
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Primarily I wanted the pic of the Perrin hoses to see the how/if the edges had a radii. Can any of you with the Perrin's comment on the radius where the hoses transition?
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Old 03-11-2003, 02:00 AM   #18
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Default pics of Perrin hoses

Anyone who has RECEIVED Perrin hoses have a pic of the interior of the hoses? I ordered some because I understood they were of significantly higher quality than Samco. My order was on back order for several months. Jeff @ Perrin said there were some production issues and that they had developed a new tool/process to ensure top quality. After all the wait I will be very dissapointed if the hoses don't stack up to my expectations.

Some pics would be great.
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Old 03-11-2003, 02:09 AM   #19
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I'll do my best to get some tomorrow.
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Old 03-12-2003, 02:19 AM   #20
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Finally got some pics of the Perrin hoses. Unfortunately, black doesn't take good pictures indoors, I may try again tomorrow during the day. These pictures should give you an idea of what the interior of the hose looks like, somewhat of a combo between the Vishnu/Samco hoses in that it has a sharp edge around one corner, but rounded edges on the others and minimal casting flaws.

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Old 03-13-2003, 02:51 AM   #21
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Default Received my Perrin hoses

The "Y" pipe has some flashing which needs to be trimmed--not very much but it is noticeable. I also discovered a divot/defect on the inside the "Y" pipe about 1 inch in diameter and about an eighth of an inch deep. Called Jeff @ Perrin and they offered to send me a replacement pipe right away. I think they have had some production bugs, but have worked most of them out. The "y" pipe is very sturdy feeling and tough. Assuming I get the replacement pipe from Perrin (which I think will happen based on my past positive experience with Perrin), I would recommend the Perrin over the Samco from the posts I have seen complaining about Samco.
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Old 03-13-2003, 03:01 PM   #22
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drees: Thanks for the pics! exactly what I was looking for.
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Old 03-14-2003, 09:12 AM   #23
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Default Just buy whatever is cheapest

because there is NO WAY that that little bit of flashing would make any recordable HP difference. No dyno in the world would be able to show it. It would be less than .01 of a HP (serisously)
Guys, I am ALL FOR buying the best product for the money, but there is no way that the that little bit of flashing is any more than a .50 cent difference.
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Old 03-15-2003, 08:02 PM   #24
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Received my hoses from MPJ Performance today, and I must say I'm a bit disappointed. Not in MPJ, but in the perrin hoses.

See the long tube on the right side of the pic? On mine it is really short, about half as long as the one in the pic. So it didn't want to fit without it being a big, pain in the ass. When fitted on the IC, the tubes were only half-way up each pipe, since they couldn't reach that far. Pull on one end and the other end pops out, and vice versa.

They're on now, but a half inch or more would have made a HUGE difference in making it more install friendly. Perhaps I just got a half-assed set.

Another thing, I didn't even use the perrin BOV tube. I didn't see a point, the tubes were exactly the same diameter. So why Samco, Perrin or Vishnu even include that tube makes no sense to me.

Felt a power increase, and a bit more 'whooshing' volume.
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Old 03-15-2003, 10:30 PM   #25
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I wanted to keep quiet for a while until I was sure other people were having the same problem. But seeing that picture of the black hose leads me to believe that there is something seriously wrong with my y-section too. The long leg going to the far end tank elbow is about an inch short on mine too throwing the fit off on the rest of the clamping surfaces.

I managed to force everything together and also have about half the clamping surface at my disposal. I'm not too worried about the hose popping off because I unbolted the IC brackets and pushed the IC in an effort to get the hoses to pop off, but I couldn't. I still keep the stocker in the car just in case though.

Ferg had this problem too, he's giving it another go today. We talked with Garret at World One directly today and he's on the ball looking into the issue.
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