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Old 07-29-2009, 02:37 PM   #1
ASF
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Default Will a silicone turbo inlet fit under an EJ25D intake manifold?

Will an EJ205 style silicone turbo inlet (like Gimmick or Perrin etc) fit under an EJ25D intake manifold if one relocated the PS pump res.?
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Last edited by ASF; 07-29-2009 at 05:48 PM.
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Old 07-29-2009, 05:20 PM   #2
69subaru360
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You might have to do something with the fuel lines also.
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Old 07-29-2009, 05:47 PM   #3
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Addressed with a homemade parallel kit.

Otherwise this is affirmative?
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Old 07-29-2009, 06:49 PM   #4
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I dont think its much diff than the ej251 setup minus the air assit on the passanger side and vacum for the FPR.

Don't think there is much room there to run anything under the manifold and you would have to redo your fuel lines.

Not sure what other manifolds fit on the 98's.....maybe a older JDM sti mani?
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Old 07-29-2009, 07:45 PM   #5
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doesn't the clearance have to do with the extra height from the TGV's?
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Old 07-29-2009, 08:35 PM   #6
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Quote:
Originally Posted by turbo01gc8 View Post
doesn't the clearance have to do with the extra height from the TGV's?
No, the EJ25 n/a manifold is just as tall as the usdm ej20 intake manifold +tgv combo.
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Old 07-30-2009, 10:20 AM   #7
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I figured the 25D was the same era of the 20K and the 20K has no TGVs with an under manifold inlet.
I found one someone else did.
http://forums.nasioc.com/forums/show...2&postcount=55
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Old 07-31-2009, 10:51 AM   #8
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the problem lies with the coolant crossover pipe being too tall and at the wrong angle
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Old 07-31-2009, 01:06 PM   #9
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Would this be an issue if one was using a 257 block with a 257 coolant crossover?
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Old 07-31-2009, 02:46 PM   #10
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the 257 setup will work fine
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Old 08-01-2009, 12:58 AM   #11
turbo01gc8
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are the intake manifolds interchangeable besides the EGR equipped ones? do some flow better than others?
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Old 08-01-2009, 02:40 AM   #12
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I think my EJ20G mani may flow better but I don't want to buy or make a spacer.
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Old 09-15-2009, 11:36 PM   #13
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Inlet fits under an EJ20G intake manifold if you use 8mm spacers, an EJ257 crossover tube and a phase II style PS pump. Yay.
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