 Can you run a EJ20 Turbo as a N/A engine, then install the turbo later,.. |
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| flmont |
 Nov 5 2015, 05:39 PM
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#1
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Senior Member  Group: Members Posts: 879 Joined: 21-October 08 From: Tucson,Az Member No.: 9,676 Region Association: Southwest Region 
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Iam now thinking about running a turbo EJ20,..but can it be run as a NA,.Until I could put all the componets together,..meaning Fabing all the parts that wont come with the engine,..or is it a drop-in assembly,..Thanks FM
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Replies(1 - 13)
| Mueller |
Nov 5 2015, 06:17 PM
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#2
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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I see no reason why not...it won't be as quick as a factory N/A 2.0 Subaru motor of the same size (if they even make one) due to the lower compression of the turbo motor.
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| flmont |
Nov 5 2015, 06:45 PM
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#3
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Senior Member Group: Members Posts: 879 Joined: 21-October 08 From: Tucson,Az Member No.: 9,676 Region Association: Southwest Region
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I cant find a ez30 motor yet ,so I thought about those engines,seems to Be enough available,... how are the JDM engines..????
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| Mike Bellis |
Nov 5 2015, 07:49 PM
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#4
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Lower compression = lower power without boost.
Then you have to tune it twice which can get expensive. I paid $2200 for tuning and parts for my Audi motor. Seems to me adding the turbo now will be cheaper and less work in the long run. |
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| JRust |
Nov 5 2015, 08:01 PM
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#5
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914 Guru Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest
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Just run the 2.5 & add the turbo. You can do that with lower boost with no problem. Probably have to stick with about 8 lbs so not sure how great that would be. You'd just need fuel rails, intake & an ECU
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| matthepcat |
Nov 5 2015, 08:06 PM
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#6
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Meat Popsicle Group: Members Posts: 1,462 Joined: 13-December 09 From: Saratoga CA Member No.: 11,125 Region Association: Northern California |
QUOTE(Mike Bellis @ Nov 5 2015, 05:49 PM)  Lower compression = lower power without boost. Then you have to tune it twice which can get expensive. I paid $2200 for tuning and parts for my Audi motor. Seems to me adding the turbo now will be cheaper and less work in the long run. (IMG:style_emoticons/default/agree.gif) Just wait and do it all at once. You have to run a different computer, exhaust and it will be a low compression dog. |
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| flmont |
Nov 5 2015, 08:13 PM
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#7
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Senior Member Group: Members Posts: 879 Joined: 21-October 08 From: Tucson,Az Member No.: 9,676 Region Association: Southwest Region
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is there a lot of special mods to do,..?? or can you install the turbo engine,..and go from there...
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| matthepcat |
Nov 5 2015, 08:20 PM
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#8
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Meat Popsicle Group: Members Posts: 1,462 Joined: 13-December 09 From: Saratoga CA Member No.: 11,125 Region Association: Northern California |
QUOTE(flmont @ Nov 5 2015, 06:13 PM) is there a lot of special mods to do,..?? or can you install the turbo engine,..and go from there... Not really much more than an N/A motor: You have to cut the trunk to fit the turbo ( unless you relocate the turbo with the renegade hybrids up-pipe). You have to relocated the factory inter-cooler, or run a water to air inter-cooler. Other than that, everything else is pretty much the same as the N/A conversion. Will you be running a WRX transmission or the stock 901? |
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| Chris H. |
Nov 5 2015, 08:20 PM
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#9
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Senior Member Group: Members Posts: 4,032 Joined: 2-January 03 From: Chicago 'burbs Member No.: 73 Region Association: Upper MidWest
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Take a look at the NA 2.0L JDM engines. They are CHEAP. Only 140hp or so but you can get one with low miles for like $700. Totally agree that running a turbo engine without the turbo wouldn't be the best idea. The ECU would be confused and even with the correct tune it'd be like a 2.0L bus motor. Low compression pistons, etc. You could mildly boost a NA engine as Jamie mentioned.
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| DBCooper |
Nov 5 2015, 08:59 PM
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#10
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
^^^ Agree totally. I think you'd be real disappointed with a N/A turbo engine. Some cheap Delta cam re-grinds in a naturally aspirated EJ22 and you're over 160hp with a really reasonable cost and amount of work. That or a stock newer SOHC EJ25 and you're at similar horsepower at a similar price. 165hp is enough for a lot of fun, maybe more than you think.
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| flmont |
Nov 5 2015, 09:19 PM
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#11
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Senior Member Group: Members Posts: 879 Joined: 21-October 08 From: Tucson,Az Member No.: 9,676 Region Association: Southwest Region
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JDM in Phoenix,..has a 04-05 turbo for 1400.00 about 50 K miles,..on it,..??
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| Jake Raby |
Nov 5 2015, 09:30 PM
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#12
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
I have a ton of the EJ20T ancillaries and etc that I have no use for, if you need something. The same for internals, cranks, cams and etc that we pulled out to replace with our goodies.
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| 76-914 |
Nov 5 2015, 09:34 PM
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#13
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,509 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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QUOTE(flmont @ Nov 5 2015, 04:45 PM) I cant find a ez30 motor yet ,so I thought about those engines,seems to Be enough available,... how are the JDM engines..???? You'll probably end up w/ a JDM which is OK if you can get the ECU too. Otherwise, buy a nice wrecked one and strip. There is so much you can cannibalize. |
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| colingreene |
Nov 5 2015, 11:01 PM
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#14
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Senior Member Group: Members Posts: 729 Joined: 17-October 13 From: Southern California Member No.: 16,526 Region Association: Southern California |
I am going to say if you dont have the money to do it right the first time dont do it.
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