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Old 01-07-2013, 08:15 PM   #5301
dr20t
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Quote:
Originally Posted by Vlad View Post
Can you post some details, this is an interesting build.
Vlad - i sent you a pm on another forum (rexnet) so not sure if you have seen it

You were one of the guys I was referring to with the great info

Specifically what details would you like to know? Happy to share whatever info I have.

Mick
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Old 01-07-2013, 08:19 PM   #5302
WRick
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Quote:
Originally Posted by shamrock 05 View Post
Guys, guys, guys......arnt these motors like dating a stripper? They look good and your friends are jealous of you....but in all honesty these motors have been rode hard and put away wet ?
qotd man
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Old 01-07-2013, 08:24 PM   #5303
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Quote:
Originally Posted by dr20t View Post
Wow didn't realize I'd get such backlash! Lol

Take a step back fellas. I was using the word "unicorn" because of the mythical nature of these "jdm big port heads" everyone keeps referring to. So it was tongue in cheek!

Blueprinting marks are differentiated from normal torque setting marks. I have put together several motors over the years and know what oem markings for torque settings look like. Whilst many of the markings i referred to are chalk marks, the crank puley, rear main and rotating front assemblies are all distinctively marked.

Nonetheless im happy to accept that this isnt a blueprinted motor to please the mases. So please dont crucify me for this....

for all the crap being served and circulated out there - to be honest who cares

I'm sure it will be very fun and a step up from my current setup. I know it will make more power and will be alot sturdier than the current setup.

To be honest I didn't expect such a reaction but all good.

I hope to come back with some results in late January once it's all up and running.

For those interested in my build thread here is a link to our local forum:

http://forum.liberty.asn.au/viewtopi...9a4d00c3b03605

Thank you nonetheless to people who have provided some great info on this page

Regards
Mick
That wasn't meant as an attack; we were simply curious! I've never seen a blueprinted Subaru factory motor. Pictures would be great.
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Old 01-07-2013, 08:31 PM   #5304
lukeskywrx
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I think you are misinterpreting our enthusiasm. There are so many rumors about the mythical JDM motors getting some pics and reliable information is rare and exciting.

JDM big port heads are not that uncommon, but the dual AVCS ones are. I would love to see what the cams and cam sensors look like to compare to the USDM.

Please show the blue printing marks, I have been wanting to see them for a long time. All I could find about the special assembly EJ motors was a vauge mention of balance marks.

The rumor was the spec-C got hand ported from the factory, I was dissapointed when I pulled the manifold off mine, huge ports but no hand porting

Quote:
Originally Posted by dr20t View Post
Wow didn't realize I'd get such backlash! Lol

Take a step back fellas. I was using the word "unicorn" because of the mythical nature of these "jdm big port heads" everyone keeps referring to. So it was tongue in cheek!

Blueprinting marks are differentiated from normal torque setting marks. I have put together several motors over the years and know what oem markings for torque settings look like. Whilst many of the markings i referred to are chalk marks, the crank puley, rear main and rotating front assemblies are all distinctively marked.

Nonetheless im happy to accept that this isnt a blueprinted motor to please the mases. So please dont crucify me for this....

for all the crap being served and circulated out there - to be honest who cares

I'm sure it will be very fun and a step up from my current setup. I know it will make more power and will be alot sturdier than the current setup.

To be honest I didn't expect such a reaction but all good.

I hope to come back with some results in late January once it's all up and running.

For those interested in my build thread here is a link to our local forum:

http://forum.liberty.asn.au/viewtopi...9a4d00c3b03605

Thank you nonetheless to people who have provided some great info on this page

Regards
Mick
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Old 01-07-2013, 08:39 PM   #5305
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Definitely a congrats on the purchase. I was serious about the first unicorn comment, as it might have been a term used in another market for something limited. Sometimes sarcasm/ humor doesn't translate well on the net.
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Old 01-07-2013, 08:54 PM   #5306
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Yeah I'm pretty thick skinned fellas so no skin off my nose but I thought maybe you took me as the typical Internet bull**** artist !

Motor is in a mates workshop who closed to go to Japan until 18th January. But will definitely get some pics before it goes in the car

The grb ej207 is a different beast as far as anything I've read and seen. The block is visibly different. The ports are quite large, of slightly different angle and shape, and cam lift is the largest I've seen on a oem subie Motor (by looking in the port visually). When heads are off ill get some proper specs including head cc, quench area, valve lift and cam duration , pics, etc etc.

Wish me luck in my endeavours I would really like to see how far I can push this motor safely

Thinking 26-28psi on the 3076 should get a nice result

My current 2871 with 0.63 rear on my quad avcs liberty comes on full song in third at 2800. So I'm thinking the 3076 should be at full song by about 3500-3800.
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Old 01-07-2013, 08:57 PM   #5307
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And as far as I know, no spec c motors received hand porting this was all a rumour unless it was a pro drive or wrc prototype motor that had aftermarket porting completed to compliment the increased cam duration and capability

Keen to get your thoughts on the motor once I have the proper specs and pics.

Will be using verniers for everything and proper cc'ing techniques etc
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Old 01-08-2013, 07:29 AM   #5308
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Real quick:

-No factory engine received porting, but there is evidence that the first RA cars (2001, before the RA became the Spec C type RA), have additional radius smoothing in the intake port. See the EJ207 info thread for factory port drawing.

-The GRB cars have a much bigger intake port that anything before, for the Spec C EJ207. I already saw the drawing, I will post it sometime soon. The differences are not in terms of half a milimeter (like for the RA), but of several milimeters.

-Some of the GRB EJ207 have a much thicker casting EJ207, by the liners.
This is easily found with a google, I can post a pic.

-To my surprise, the text at Sti of Japan (which is a different entity than Subaru of Japan) has changed about the S cars.
Maybe they are reading this forum and making decisions?
If you're reading this, Sti guys, is it too much to ask for a contribution, some posts here and there to help us clarify and understand?

Anyway, so the current is:
-S202, no word about internal engine work
-S203, internal ballancing
-S204, detailed description of: hand selecting the items in the rotating assembly, for tight weight tolerances. Then manual crank ballancing.

This is huge, as in terms of assembly line, every extra minute spent by an engine, befor it's complete makes it quite more expensive.
So I think that the S204 engines may have taken a trip to the Sti facillity, where they got taken care of, Sti may have the time and manpower to do this and there were not that many of these cars.

As far as what did these workers do, what are the internal regulations at this facillity and do they put some kinds of markers on the shortblock once the work is complete, I don't know, but it's not impossible.

If I was to speculate, once the engines are ready, they go back to the line. There you need markers for the robots to easily see that this is an S engine that needs to be paired with an S body. A marker is possible.

Also, I noticed that only the S cars are considered "items of showcase", by Sti, not the Spec C cars.
Also, only the S cars get internal work
Also, upto a point, only the S cars are certified for over 300 CHP.

Then comes the Ra-R. Now, there is no mention on the Sti site about internal engine work with this car......
Maybe at this point, the 320 crank HP had been reliably produced and internal work was not necessary anymore?
Maybe they were losing money and stoped doing this?

As we're moving into the GRB, now the Spec C are over 300 crank HP. I don't recall any mention of internal work when the Spec C was released.

And finally, I was too lazy to dig out the S206 press release, to see if they did any work to that engine, but the R205 did not have any..

There was a thread of a guy that swapped an S204 drivetrain and he mentioned clear signs on the flywheel but although he posted many photos of his swap, he never posted photos of that flywheel and is not active on the board anymore.
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Old 01-08-2013, 09:43 PM   #5309
tylerbryant
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i just got my 207 from jdm racing motors today and it came with some wires already im the ecu. are these the avcs wires? they are about 10 ft long and are covered in grey tape.



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Old 01-08-2013, 10:24 PM   #5310
WrexTi
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that's more than just the avcs wires. But they are in there I can see them. They are in the middle connector, you have to slide the pins out. Check out the DS1 guide so you know exactly.
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Old 01-08-2013, 10:29 PM   #5311
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i need to repin them even if i use the jdm ecu? wouldnt that defeat the purpose jdm ecu?
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Old 01-08-2013, 10:30 PM   #5312
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You have to repin it in with your existing bulkhead harness...that's all you have to do get the 4 avcs wires out of there, and add them to your passenger side gray connector to the ecu. theres also some other pins that have to be switched around, one spot being I believe the brown connector behind the battery. Just look at the DS1 guide. It's not that hard, getting the pins out is a little tricky until you get the hang of it. Either way i just finished my swap and everything works beautiful so just believe me.
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Old 01-08-2013, 10:50 PM   #5313
tylerbryant
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thanks for your help. i have to get the tgv deleted on the usdm ecu so that i can pass my emissions test. then after i pass ill hook up the jdm ecu and acvs system.
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Old 01-08-2013, 11:04 PM   #5314
WrexTi
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Download ecuflash, and just change the map on the wrx ecu yourself. Theres a box you can check in called Force Readiness Monitors, and then you could just disable any CEL's related to TGV. Good luck with your swap bud.
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Old 01-08-2013, 11:29 PM   #5315
tylerbryant
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ok i went and got ecuflash what do i need other than that to make it work? all it is, is a window with 5 or 6 buttons. i dont tune stuff. im a mechanic i just put parts on cars haha
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Old 01-09-2013, 12:35 AM   #5316
WrexTi
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oh lol well you need a tactrix cable to hook a laptop up to your car first. after that youll connect the green test connectors under the dash by your pedals, read the map, check in the box and disable the cel's discussed earlier, and then flash it back into the ecu. don't forget to disconnect the test connectors when your done
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Old 01-09-2013, 12:14 PM   #5317
WRick
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what's the market value for a built 207 SB ?

( rods/pistons/ spec C black crank / 11mm oil pump with sti pan/baffles )

say 6000 mi on it.
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Old 01-09-2013, 12:28 PM   #5318
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The heads are where the money is at I think. But there is this guy who might be willing to partner with you to sell his heads or something.

http://forums.nasioc.com/forums/show....php?t=2450961
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Old 01-09-2013, 01:00 PM   #5319
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Quote:
Originally Posted by WRick View Post
what's the market value for a built 207 SB ?

( rods/pistons/ spec C black crank / 11mm oil pump with sti pan/baffles )

say 6000 mi on it.
whats the deal? giving up on her?
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Old 01-09-2013, 01:12 PM   #5320
WRick
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now that it's built and done, I might consider a 2.35L or something

I kinda like doing this stuff over and over again haha
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Old 01-10-2013, 04:21 AM   #5321
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just gunna leave this right here. lol
got everything 100% done
Thanks to Fuji Factory and Church Tuning

Last edited by AnthonyWang; 01-10-2013 at 04:47 AM.
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Old 01-10-2013, 04:40 AM   #5322
dr20t
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That's awesome!!
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Old 01-10-2013, 08:29 AM   #5323
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Quote:
Originally Posted by AnthonyWang View Post
just gunna leave this right here. lol
got everything 100% done
Thanks to Fuji Factory and Church Tuning
Video Link: http://www.youtube.com/watch?v=euLjzxAB1is&feature=player_embedded
Very nice! Enjoy your new power and terrible gas mileage!
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Old 01-10-2013, 09:39 AM   #5324
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Psycho, be gentle on the gas pedal bud, you may be trading for a Prius soon. I commute 40 miles daily and fuel consumption is similar to what it was before the 207. It's all in the art of how you drive it.
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Old 01-10-2013, 10:55 AM   #5325
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Quote:
Originally Posted by D-Rodman View Post
Psycho, be gentle on the gas pedal bud, you may be trading for a Prius soon. I commute 40 miles daily and fuel consumption is similar to what it was before the 207. It's all in the art of how you drive it.
I've been trying, it's just too damn easy to get into boost with the TS VF37 setup. First two tanks were 18mpg and 17mpg. Then I tried to baby it and got 19mpg.

This whole "Full boost available in any gear at 3300rpm" is just silly especially with the 5 speed.

I'll get used to it eventually.
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