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Old 10-26-2006, 06:36 PM   #1
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Default I've hit a snag... what the hell!!!

All right, this is just blowing my mind here. I was under the impression that when you ordered a particular piece of intercooler material, whatever it be, IC or coupler or pipe or reducer or elbow or whatever... that when you said 2" or 2.5", everybody was on the same page, ie, any 2" coupler will connect to any 2" pipe. Well, check it out.

Pic 1 and 2: my IC dimensions are 1 7/8 ID and 2 1/4 OD.
Pic 3 and 4: The 2" couplers I bought will not fit the IC, but will fit the pipe.
Pic 5: The 2"-2.5" reducer and the 2"-2.5" 90* I bought have two different 2.5" dimensions. The 90* fits perfectly over the TB inlet which is what I bought it for, but is way to big for the IC.
The coupler reducer fits perfectly on the pipes and the IC.

So, what the hell!!! Nowhere in ad's I've bought this stuff from does it specify ID or OD for the products. I thought it was all the same!!! Now I've got $200 worth of pipe and couplers that won't fit on my $100 IC. What the hell do I do?

Last edited by samnavy; 08-01-2007 at 10:34 PM.
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Old 10-26-2006, 06:49 PM   #2
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it is a tigh fit sometimes but 1/4 inch is doable on the stuff that is to tight. you could mill it down abit on a grider or with some sanpaper. as for the stuff that is to big try clamps lots of clamps good luck.
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Old 10-26-2006, 07:00 PM   #3
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You *might* be able to soften the couplers up with a hairdryer or heatgun (carefully) and slip them on with some greasin' up. I keep vaseline handy in the garage for that kinda stuff.

Surely other users of the ebay IC should be able to offer better help.
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Old 10-26-2006, 07:05 PM   #4
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I like to keep my couplers all from one brand unless I absolutley have to just to avoid this type of stuff. If you need any couplers I have a few laying around that were extras from misc projects that I will let go really cheap.

Last edited by Kelly; 10-26-2006 at 07:17 PM.
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Old 10-26-2006, 07:44 PM   #5
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Those are all good stuff. I've got about $300 in all this stuff and it just PISSES ME OFF!!!!!!!!!! You'd think there'd be an industry standard for this stuff. Well, lesson's learned.

Yup, in the future, I'll stick with one brand.
The wife hates it when I take her things to go work in the garage, but the hairdryer is on tap. I've got a tube of KY I keep on hand for this stuff, so that'll be in the mix. And it looks like the Dremel is going to put in a little overtime on Sat.

The whole setup is perfect except the IC. I wonder if I shouldn't just source another IC that comes with 2" ins/outs. The one I've got is perfect except for the 2.5" ins/outs.
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Old 10-26-2006, 07:56 PM   #6
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Just had another wild idea... slice the IC outlet/inlet(?) and take out a little wedge or two. AL is easy to work with, so it ought to be easy to pinch it closed again. If you're really savvy, track down someone to weld it back together, or use some JB.
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Old 10-26-2006, 07:59 PM   #7
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push hard, it'll fit. Or if worse comes to worse, you could cut off the hump....but id try force first.


I have (1) 2.0" 90* coupler I could send down your way, but I'll measure the ID and see if it'll help you out at all.
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Old 10-26-2006, 08:01 PM   #8
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I just drop the couplers into some boiling water for about 5 minutes and then fit them REAL fast to the piping. They start to contract very fast so get em on the pipes ASAP. Plus this way there is nothing to aid them slipping/blowing off afterwards.
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Old 10-26-2006, 08:36 PM   #9
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Quote:
Originally Posted by Fergus View Post
I just drop the couplers into some boiling water for about 5 minutes and then fit them REAL fast to the piping. They start to contract very fast so get em on the pipes ASAP. Plus this way there is nothing to aid them slipping/blowing off afterwards.
+1, but just start boiling the water and put one end in so the whole thing isn't so hot.
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Old 10-26-2006, 08:47 PM   #10
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I wonder if my wife will let me name our first child Fergus B. Racer.
I owe you guys!

Last edited by samnavy; 08-01-2007 at 10:34 PM.
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Old 10-26-2006, 09:06 PM   #11
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very nice...time to go use that KY jelly



good thinking guys!
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Old 10-26-2006, 09:13 PM   #12
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Sweetness!!
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Old 10-26-2006, 09:30 PM   #13
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Hey sam, where is the thread where you posted up what you bought and how your setup is going to look?
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Old 10-26-2006, 09:34 PM   #14
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those pics HAHA
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Old 10-26-2006, 10:50 PM   #15
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I just installed the same countertop in my bathroom.
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Old 10-27-2006, 12:12 AM   #16
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Here's my seven page mega-thread.
https://www.miataturbo.net/forums/showthread.php?t=4455
Here's another IC thread where I've got lots of posts.
https://www.miataturbo.net/forums/showthread.php?t=4871

And I guess I spoke too soon about snags.
First: cold side and hot side all DONE. Not installed, but done. The pipes are ready to go in. I've still gotta tap for idle-air/bov/breather, but the engineering is done. All my **** fits perfect.

Second: I JUST DISCOVERED THE SAME CRAP **** POOP ID/OD PROBLEM WITH MY INTAKE PIPING. The turbo inlet is 2"... so I bought a 2"-2.5" coupler, a 2.5" 180* pipe bend, and 2.5"-3" coupler to mate to the RX7 MAF. It's supposed to look almost exactly like Braineaks: https://www.miataturbo.net/forums/vb...getimage&id=85
But the RX7 MAF is 3"ID and the coupler is 3"OD. Same with the 180* pipe... it's 2.5" ID, and the coupler is 2.5"OD.

And to top it all off, I've got some seriously mean farts.
WTF IS THE WORLD COMING TO!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old 10-27-2006, 12:35 AM   #17
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Some of my couplers are so f-ing tight I probably don't need hose clamps. I used the bot water trick and it's worked find.

Sorry, no help with the farts.
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Old 10-27-2006, 01:33 AM   #18
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lol, damn, one of the post where you told me what all you got was from my own damn thread, thanks man, thats the one I was looking for...

and lay off the mexican food?
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Old 10-27-2006, 09:23 AM   #19
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I hear eating KY is a secret southern remedy for severe flatulence.
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Old 10-27-2006, 09:30 AM   #20
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oh my AFM coupler did not want to go on, exact same issue. I used the push like freakin' hell/screwdriver method.
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