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Old 05-23-2004, 02:18 PM   #51
Cheeba1983
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Quote:
Originally posted by Structure828
I dont know about all that. Putting a Ver 7 motor in is going to be a slightly diff harness from the US spec WRX. Most of the things are going to be the same but I am pretty sure there will be differences.

J spec wiring diagrams use diodes and more power/ground connections then US spec motors. I just basically went through every damn wiring diagram on any EJ20 subaru motor and noticed that yearly, a lot stood the same but every year something slightly changed with wiring.

It could be done, but I could promise you, something somewhere will have to end up spliced.

Plus everything is going to be off...


The Ver7 has much more power, a different turbo, different injectors, different everything....

The plugs might line up but the WRX ecu wont know what the hell to do.

You cant go from 220hp to 280hp using the same ecu without having atleast retuned

Hmmmm Where did he say to use the WRX ECU? He didnt say anything about the V7 ECU cause thats common sense to buy it with the engine. When you buy a motor you usually get the ECU to support it. Right? I ordered a jspec V8 from Gruppe-s for 4.5k. Came with everything even the ecu, minus tranny. Now about the wiring its the same freakin motor basically. You only have to wire the AVCS, if you want AVCS. Totoherbs knows exactly what he talking about. Stop acting like a noob and listen to the ones who know.
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Old 05-24-2004, 01:42 PM   #52
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i havent read the entire thread but...


The construction of the awic core is much different than that of an air-air core. Though the core is smaller in terms of total volume there is a ****load of area inside the awic core for the air to flow through, as opposed to the small tubes of the air-air. you can tell just by looking into the core through the outlet.

I'm no expert or anything, but thats just the way it looks.

btw i have a awic set up if anybody wants to buy one, its the stock awic, stock pump, and a motorcycle radiator. pm me if interested, dont know if i will remember to check this thread later.
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Old 05-24-2004, 06:00 PM   #53
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I did a swap myself. And I know others who have. Yes you would HAVE to use the Ver7 ecu. Usually when someone is talking about wiring they are talking about the WIRING HARNESS AND ECU so I made sure to include both.
Even with the JDM ecu, he will have to do some splicing on the plugs BECAUSE IT WONT BE THE SAME FRIGGIN ECU.

The plug numbers and pins and colors wont line up the same coming from the harness, to the ECU.

Can it be done....yes

Is it plug and play....MOST CERTAINLY not.
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Old 05-25-2004, 07:08 AM   #54
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Quote:
Originally posted by Structure828
I dont know about all that. Putting a Ver 7 motor in is going to be a slightly diff harness from the US spec WRX. Most of the things are going to be the same but I am pretty sure there will be differences.

J spec wiring diagrams use diodes and more power/ground connections then US spec motors. I just basically went through every damn wiring diagram on any EJ20 subaru motor and noticed that yearly, a lot stood the same but every year something slightly changed with wiring.

It could be done, but I could promise you, something somewhere will have to end up spliced.

Plus everything is going to be off...


The Ver7 has much more power, a different turbo, different injectors, different everything....

The plugs might line up but the WRX ecu wont know what the hell to do.

You cant go from 220hp to 280hp using the same ecu without having atleast retuned
Going from a ver 7 or ver 8 into a wrx is as plug and play as any motor swap will ever be... You just plug in the wrx harness to the block and the ver 7 ecu in place to the wrx ecu and go. If you want to run avcs you can do that easy run a few wires shouldnt take more then a few hours.
You can run a reflashed wrx ecu, but you wont have avcs. You dont have to reflash the jdm ecu because 93=~98ron they use in japan, but it would be a very good idea to get a reflash.

Quote:
Originally posted by AZScoobie
V7 swap is simple.. The ECU plugs in and you start the car.. What could be more simple? AVCS can then be wired up if you chose which will take no more then an hour or two tops and all the info is on the web.


C
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Old 05-25-2004, 11:20 AM   #55
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So the plug numbers, colors and wires are going to line up exactly coming from the motor to the ecu?

I can see all the plugs being the same, but the PLUGS themselves having the wires lined up the same way same everything is hard for me to believe.

I understand what you are saying, and it is easy then most. But I just wouldnt make it sound that way.
And you should be right about hte AVCS
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Old 05-25-2004, 11:31 AM   #56
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Quote:
Originally posted by Structure828
So the plug numbers, colors and wires are going to line up exactly coming from the motor to the ecu?

I can see all the plugs being the same, but the PLUGS themselves having the wires lined up the same way same everything is hard for me to believe.

I understand what you are saying, and it is easy then most. But I just wouldnt make it sound that way.
And you should be right about hte AVCS
Everything is the same. Plug in and go.

I see what your saying I shouldnt go around telling everyone its easy as pie. A motor swap is hell, but in the context of this conversation I think its ok.
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Old 05-25-2004, 03:20 PM   #57
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lol..

"ya ya...just drop it in and go" LOL!

There would be ricers everywhere lifting motors with their bare hands dropping motors in their old civics trying to plug together the same color wires
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Old 05-27-2004, 12:12 AM   #58
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the answer was yes btw
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Old 05-28-2004, 02:24 PM   #59
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how much power can the ej20g hold?
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Old 05-28-2004, 07:02 PM   #60
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EJ20G can hold 800 or so HP and solid. When you have that much power problems happen anyway, but it is limited for sure because it is closed deck. Closed Deck= the uberness under extreme HP.
There is a few totally done Subaru Legacy RS' and Liberty RS' and early STI's that show off the power. Just do a google search. If I remember right some dude in aus has the factory setup totally modded motor and is at 656hp or somethin.
There are also RACE motors made from the EJ20 closed deck series.
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Old 05-28-2004, 07:15 PM   #61
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However my car will never do that, nor do I want it to run that. I just want my high 12's fun daily driver Maybe low 13s still
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Old 05-29-2004, 12:39 AM   #62
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will it hold 600-650whp on pump gas?
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Old 05-29-2004, 01:14 AM   #63
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beats me, id think 93 , sure why not
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Old 05-29-2004, 01:58 AM   #64
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Quote:
Originally posted by sports334
will it hold 600-650whp on pump gas?
NO... not near that on pump gas.
600 crank is not going to happen for any stock subaru blocks. Maybe for a few runs but not for any real lenth of time....
Around 350 to 400whp(something like 425-500 crank hp) is the limit any builder is going to tell you for any stock subaru block (ej22t (closed deck 2.2l with oil squiters), ej207(reinfoced deck, found in the new jdm STis), ej20g(closed deck 2.0L). Closed deck does not make for a great block by it self... and the rods and pistons in thoes early ej20g and ej22 motors are nothing great.

Now if were talking about built blocks thats a whole different world, you can go with the closed deck blocks or sleave a block. Both ways will sovle any ovaling problems you will have have when running high boost, but they will not alone make a good block. Next you have to get good forged pistons, rods, crank maybe even a stroker crank...

Heres a list of well known motor builders, contact all of them tell them what your are looking for and see what they all have to say, but only if your willing to spend the money dont waist thies peoples time.

www.cobbtuning.com
www.axispowerracing.net
www.i-speedusa.com / www.crawfordperformance.com
www.spdusa.com
www.rallispec.com
www.magnusmotorsports.com
www.payntechnologies.com
www.rigoliracing.com.au
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Old 05-29-2004, 12:29 PM   #65
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Yes, if you are looking to get that much power, do as herbs said and contact those people. I was not sure on the normal gas thing. Besides, why would it matter if it was normal gas or not at that point, its not like u can drive it on the road...
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Old 06-03-2004, 03:41 PM   #66
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Quote:
Originally posted by totoherbs
NO... not near that on pump gas.
600 crank is not going to happen for any stock subaru blocks. Maybe for a few runs but not for any real lenth of time....
Around 350 to 400whp(something like 425-500 crank hp) is the limit any builder is going to tell you for any stock subaru block (ej22t (closed deck 2.2l with oil squiters), ej207(reinfoced deck, found in the new jdm STis), ej20g(closed deck 2.0L).
How does the USDM STi block rank?

ss
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Old 06-03-2004, 05:10 PM   #67
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All the STI motors are incredibly built. They are also an EJ series motor and can handle a lot. They are built for performance and for bank for the buck, the sport car you get is truly awsome. They are NOT closed deck. The pros and cons go both ways though. The new STI's have lots of stuff already upgraded that would be prime for running high lvls of HP. However the old closed deck EJ20G's are better for HIGH BOOST lvls from a turbo like 25psi+. Either way, if you are trying to get that much HP you goto totally strip down and build up an EJ race motor.
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Old 06-03-2004, 06:12 PM   #68
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ok i thought about it and 600awhp is a bit too expensive so what about 500 to 530awhp max (using aps dr55 turbo) i heared that sti sleeved blocks with forged internals can make that is this true or what else is good and are there better turbos out there?
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Old 06-03-2004, 07:06 PM   #69
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an STI block can for sure. So could the closed deck EJ20's...

The closed deck will be better for 20+ PSI from the turbo then the STI, but the STI will be newer, and all around better.

STI will see detonation before the EJ20G does though most likely. But its hard to say. Id get the opinions of Matt Monson and others as well
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Old 06-03-2004, 09:21 PM   #70
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thanks, so i might get the sti or ej20g (cheaper then full race motor) and does any one else have any opinions on what block to use to make 530 hp at the wheels also will the JDM sti version 8 heads fit these blocks and are they a good choice?
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Old 06-04-2004, 01:19 AM   #71
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great choice, and yes they fit fine
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Old 06-04-2004, 01:19 AM   #72
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the version 7s do, i dunno about 8's
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Old 06-04-2004, 04:44 AM   #73
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Quote:
Originally posted by sports334
thanks, so i might get the sti or ej20g (cheaper then full race motor) and does any one else have any opinions on what block to use to make 530 hp at the wheels also will the JDM sti version 8 heads fit these blocks and are they a good choice?
They only way your getting over 400 at the wheels is a build forged race motor. NO stock subaru block is going there.

Again check out the links I gave you in your other thread....
http://forums.nasioc.com/forums/show...hreadid=567576
Quote:
Originally posted by subysouth
How does the USDM STi block rank?

ss

Well its got some mightly thin wall, isnt gonig to rev, and heavy pistons. I would say ej22>ej20>ej257. 350-400whp is all your going to see in a stock subaru block.
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Old 06-04-2004, 05:07 AM   #74
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yes, i have to back toto up. he is right, actually, dead on. plus, 400 hp in an impreza is ungodly fast. i got to drive a Xephyr built car, it was being sold, and it was FAST. estimated at around 350hp. first gear was almost non-existant. as toto says "ej22>ej20>ej257". its true.
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Old 06-04-2004, 05:30 AM   #75
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Quote:
Originally posted by Hurley 2.5 WRS
yes, i have to back toto up. he is right, actually, dead on. plus, 400 hp in an impreza is ungodly fast. i got to drive a Xephyr built car, it was being sold, and it was FAST. estimated at around 350hp. first gear was almost non-existant. as toto says "ej22>ej20>ej257". its true.

Lucky bastard! Was it when he had a 2.2 or 2.5? Ive had a ride in a few low 300whp subys its crazy, they realy need better gearing.
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