2nd Generation Specific 1986-1992 Discussion

Usdm Fd Uim To Jdm S5 Tii Lim

Old 05-17-2004, 09:47 PM
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Why you need the feed brand adapter - Mainly for the runners or else you get a vacuum leak (or boost leak, turbo boys).



I was told the S5 LIMs bolt up? Anyways heres an s5! for comparison.



Get the adapter or get creative.
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Old 05-17-2004, 09:47 PM
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More angle
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Old 05-17-2004, 09:48 PM
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I know it's a little lopsided I did it that way on purpose because I wasn't sure how well you could see the leak in the digital pictures.



But anyways when it's perfectly straight the holes are still there, or if not there is VERY LITTLE material preventing blow through.
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Old 05-17-2004, 10:10 PM
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ahh, i see...
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Old 05-17-2004, 10:11 PM
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Yeah that's an FD metal OEM gasket pictured. LOL forgot to mention.
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Old 05-17-2004, 11:32 PM
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Couldn't DR. Dremel make it work with some mild porting to the LIM.I take it you are going standalone colin?
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Old 05-17-2004, 11:35 PM
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Camel showed me his porting of his lim and it looked ultra close to breaking through. I dunno what I am going to do... Making and adpater would be really easy. Paying hundreds for it is stupid.
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Old 05-17-2004, 11:42 PM
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The bulk of the adapter could be drilled out of a piece of 1/2" or 3/4" aluminum plate on a drill press in less than an hour. Some cleaning and smoothing out with the dremel and tap it for the hardware and you're done. Not too hard at all. Hmm... I sense a profitable opportunity here.
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Old 05-18-2004, 04:58 AM
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Here is a photo of my FD UIM. JB Welded the "gap" and am going to make a thick paper gasket. using a S5 LIM, seems to line up better.

chuck
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Old 05-18-2004, 07:14 AM
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Myself I am not going with the Feed adapter. But alot of people thought it was to make it bolt up properly. It is, yes, but not in the way they were thinking. It's mainly to make the runners match up, not bolt holes.



My car won't have a stock ECU in the car..



I was thinking of JB welding a small portion of the gap between the upper intake manifold.



Mine was already mated to a TII LIM, and had alot of RTV to close any gap. I'll take a pic and you can see for yourself how thin the RTV is at that point (I scraped off the big gobs of it which I'm sure was preventing any leak, but when it comes down to it you see how much mating surface there was already).
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