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Old 02-02-2005, 04:11 AM   #1
scobaru
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Default Converting the EJ20G to a front entry turbo?

I'm wondering how possible it is to do this and postives and negatives of doing this.

I saw in another thread that you can use the 98RS intake manifold and hack off the 90 degree bend
step 1 use 98 RS intake manifold and hack 90 degree bend
step 2 ?????
step 3 profit!

I saw somebody mention about using the 98 RS intake manifold to do this so you can use a front entry turbo or something to that effect. what if I wanna use the TD05 that came with the EJ20 and convert it to front entry so the intake comes under the manifold and leaves room for FMIC piping. Front entry would be less restictive correct? would a Sti or any other intake manifold do? what about valcum lines and all the other stuff?
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Old 02-02-2005, 11:17 AM   #2
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Stick to the EJ20G intake. Its taller to run the intake under it compared to others. Wrc guys still use them. If you find a way to remove all the fuel hard lines and convert to braided ones, you have tonnes of room. If your really clever , flip the intake around for the FMIC. WRC stlye.
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Old 02-02-2005, 11:24 AM   #3
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thanks for the advice I'll consiter it maybe poke around under the intake manifold it looks pretty cramped under there
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Old 02-02-2005, 11:35 AM   #4
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Old 02-02-2005, 01:36 PM   #5
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noah at cobb did not "flip" his intake manifold..he just cut and welded. seems to work gret and looks killer.
Rick
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Old 02-02-2005, 03:33 PM   #6
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what manifold is that??
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Old 02-02-2005, 09:55 PM   #7
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There is also one other option though it might be a tad expensive. That is to have a custom UP and DP made with the turbo turned at about a 45 degree angle.
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Old 02-03-2005, 07:45 PM   #8
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You can use a '98 2.5RS intake manifold with USDM inlet plumbing and mount up a front entry TD series, IHI or other Subaru compatible turbo. The up-pipe and downpipe don't move. They don't move whether or not you have a front entry or a 90 degree inlet turbo. But if you are going to flip your manifold and go FMIC, just use your stock EJ20G manifold. All the piping is going to be custom anyways, so why worry about changing manifolds?
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Old 02-04-2005, 02:13 AM   #9
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I wouldn't want to down grade from a TD05 I'd just modify it to work. my Power sterring looks ot be in teh way... humm I'm also looking at just getting rid of the hard fuel lines for braided ones to make room and just use the EJ20G intake manifold.
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Old 02-04-2005, 02:36 AM   #10
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yeah dont let thos PS lines sit on the turbo long, I had mine wrapped five times and it still went through.

PS lines cost 250.00 from subaru, I have a set jsut in case. I ended up using a EJ22T ps pump and lines, they allow for more room.
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Old 02-04-2005, 11:09 AM   #11
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Deadbolt has front entry TD05-16G's
I think they might be able to mod yours as well.

I dont think it's worth the trouble myself.
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Old 02-04-2005, 11:50 AM   #12
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I'd just modify mine to make it work it wouldn't be that hard to make the turbo it self front entry but to clear things under the intake manifold is what I want to know about. Also how were the power steering lines near the turbo? IIRC the power steering lines don't go under the intake manifold on the EJ20G atleast
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Old 02-04-2005, 12:32 PM   #13
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The power steering lines run real close to the up-pipe. I did the same thing on mine and used my EJ22T pump and lines...
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Old 02-05-2005, 01:54 AM   #14
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could I see pictures?
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Old 02-05-2005, 02:05 AM   #15
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I think you can use the EJ20K manifold.
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Old 02-05-2005, 10:11 AM   #16
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That is a possibility scoobyimprza but I think some of the connectors are different on the K model!!
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Old 02-08-2005, 01:33 AM   #17
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this may help.
its a pic of my ej20g with stock manifold, but the wireing harness, breather tubes and fuel lines removed.
as you can see there is one small black coolant pipe that comes across the top of the motor, and ends just above the coolant crosspipe. that would probably be the only thing stopping you from the conversion from what i can see.
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Old 02-08-2005, 01:36 AM   #18
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^^ and yeah i did the fmic swap, lemme know if you have any more questions.
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Old 02-08-2005, 11:56 AM   #19
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you did reverse manifold? any more pictures with the FMIC? I could move that line out of the way some how and move to stainless steel lines for fuel. maybe if there was pictures of the fuel lines and possible ways to go aroudn it? if I got aftermarket rails then the lines wouldn't be under the intake manifold would it?
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Old 02-08-2005, 07:25 PM   #20
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the motor isnt in a car so there are no fmic pics, sorry.
and correct, the lines wouldnt be under the rail if you got aftermarket rails, they may snake underneath at somepoints, but you can easily move them out of the eay.
i'm not sure what that coolant tube went to, it may have been for the air/water intercooler, in which case you could just lose it all together if you want to.
i'm pretty sure the stock fuel lines would hit the intake pipe that you want to install, but you may be able to get away with stock rails and aftermarket lines, and just connect them with some sort of adapter. this may end up being cheaper than altogether new rails.
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