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01-09-2011, 08:41 PM | #1201 | |
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Member#: 134272
Join Date: Dec 2006
Chapter/Region:
HIIC
Location: Kahaluu, Hawaii
Vehicle:2007 Sti, UGM Rotated EFR 6758 |
Quote:
Best answer: leave it stock
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01-09-2011, 09:53 PM | #1202 | |
Scooby Specialist
Member#: 158579
Join Date: Sep 2007
Chapter/Region:
MWSOC
Location: St. Louis
Vehicle:2006 STI Rally Car Silver |
Quote:
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01-10-2011, 03:21 PM | #1203 | |
Scooby Guru
Member#: 6886
Join Date: May 2001
Chapter/Region:
Tri-State
Vehicle:MY01 EJ207 HTA35r AVCS ON! |
Quote:
Actually i'm quite aware of my oil temps during autox condtions. You still don't NEED an external cooler, especially for DD conditions. If that were the case, the factory would have installed the on all v7/v8 variants. I do agree that it is good extra insurance but would benefit more for road race conditions or if you live drive in extreme heat like AZ summers. |
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01-10-2011, 03:58 PM | #1204 |
Former Vendor
Member#: 178047
Join Date: Apr 2008
Chapter/Region:
SWIC
Location: AZ
Vehicle:02 WRX STI Spec C Black |
Yeah.. Kinda pointless on a standard V7 or V8 unless its raced on the track. Mikes car has a Closed deck block and oil cooled turbo so an oil cooler really helped keep this water, and oil temps down.
I never liked the oil thermostats. They open and divert oil to the cooler. Be carefull not to add a big huge cooler to these engines. The oil system is very lacking as it as and putting a big core will only exacerbate the problem. Never run one with an oil pressure gauge tapped into one of the galleys. There is lots of pressure fade up near redline. C |
01-10-2011, 08:04 PM | #1205 | |
Scooby Newbie
Member#: 244358
Join Date: Apr 2010
Chapter/Region:
International
Location: JORDAN
Vehicle:1996 impreza orange & black |
Quote:
but even how after consulting with my mechanic he told me that swapping pistons and rods with an after market forged ones should be no problem . . . he advised me with CP for pistons and manely for rods then clark was like CP isn't the best choice but corrilo rods are so what would be the best choice for pistons? and best rods to go along with them ? |
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01-10-2011, 08:14 PM | #1206 |
Scooby Newbie
Member#: 244358
Join Date: Apr 2010
Chapter/Region:
International
Location: JORDAN
Vehicle:1996 impreza orange & black |
and what's the best CR i should be aiming at ?
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01-10-2011, 09:48 PM | #1207 |
Former Vendor
Member#: 178047
Join Date: Apr 2008
Chapter/Region:
SWIC
Location: AZ
Vehicle:02 WRX STI Spec C Black |
This guy is determined to Screw up his motor. Just let him be guys.. He is going to take a perfectly good motor and toss some crappy piston slapping, oil burning, Smoking pistons and some rods he does not need into that motor
C |
01-11-2011, 02:19 AM | #1208 | |
Scooby Specialist
Member#: 15116
Join Date: Feb 2002
Chapter/Region:
South East
Location: Jacksonville, FL
Vehicle:2000 Ver6 STi Type-R EJ257/GT35R |
Quote:
Ryan |
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01-11-2011, 07:39 AM | #1209 |
Scooby Guru
Member#: 46135
Join Date: Oct 2003
Chapter/Region:
Tri-State
Location: NY
Vehicle:19 GLA45 AMG C63 AMG |
The standard Sti has an oil radiator then?
There's confusion, as people want to use "oil cooler" for both the OEM oil to coolant heat exchanger, as well as for the S204 oil to air heat exchanger. The air exchanger "radiator", would need a pick-up that the S204 has, in the form of a sandwhich. Idealy, this would be installed above (closer to the block) the oil-to-coolant cooler, if you retain both. I always wanted to know if the factory's choice, in the case of the S204, was to retain the oil-to-coolant, as it has warming up of the oil properties. My teory about the S204 was that it probably has a special "combo" sandwhich that in one unit is both an oil to coolant exchanger, as well as has a thermostat and connections for a radiator. I gave up on the oil radiator, because at the track, I didn't see oil temperatures over 105 Celsius. This got me suspicious and I started googling to find ANY car owner that complains about high oil temperatures. Interestingly, the people that come up right away are German owners of BMW M3 that after doing triple digit speeds for extended durations of time, feel that the cooler that those cars have is too small. |
01-11-2011, 11:41 PM | #1210 | |
Scooby Newbie
Member#: 244358
Join Date: Apr 2010
Chapter/Region:
International
Location: JORDAN
Vehicle:1996 impreza orange & black |
Quote:
but that's totally the opposite of what i'm trying to do clark, all i want is something to last better that my stocks we have pretty sh***Y gas and even worse ecu flashers man . . . i'm just trying to have the least weak points possible in my build and as every one was telling me that the a good piston/rod is way to do it . but as you are trying to tell me the stock pistons are rods are more than capable of handling that much of power of a rotated GT30R, then i don't need to do so wasting money over peace of mind knowing i have better than stock ones is not a problem and i thought that was the case, but if that's gana be a bad move for the build and it's gana be worse,then i don't need that headache i just want to run that big turbo with not more than 20 psi in some occasions only without feeling sorry over i got cheap pistons and rods and they ruined the motor i know subaru jdm motors are great that's why i got one i just want to build it and have no weak links in it that's all |
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01-11-2011, 11:46 PM | #1211 |
Former Vendor
Member#: 178047
Join Date: Apr 2008
Chapter/Region:
SWIC
Location: AZ
Vehicle:02 WRX STI Spec C Black |
If you want to build the block then get a JDM 2.2 Stroker kit for the EJ207. Tommy K, HKS, JUN, ECT... Otherwise, There is not one reason to go into the motor. I have run those motors with 30 and 35Rs with nitrous spraying ontop and they hold up fine.
Put some Kelford 207 Cams into the motor and leave it alone. Never build a motor because you expect a crappy tune. Thats just crazy. Get a Good WB meter and find a tuner that knows these motors well and listen to what he says. Never let some parking lot tune for a big mack idiot with a tactrix cable, Near that JDM ecu. Let us know if you need help. Alot of us have these motors and have run them to the max. C |
01-12-2011, 09:30 AM | #1212 |
Scooby Specialist
Member#: 158579
Join Date: Sep 2007
Chapter/Region:
MWSOC
Location: St. Louis
Vehicle:2006 STI Rally Car Silver |
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01-17-2011, 07:36 PM | #1213 |
Scooby Newbie
Member#: 270674
Join Date: Jan 2011
Chapter/Region:
MAIC
Location: Maryland
Vehicle:2003 Impreza TS BRP |
Question about a Swap decision
So I have a 2003 Subaru Impreza TS 2.5 Wagon.
I also own a 2005 Mazda Rx8. I'm selling my Rx8, and if it sells in the next month I'm going to do a swap on my TS. If it doesn't sell within a month then I may get a greddy turbo kit and the mazda maniac upgrade and throw it on the Rx8. I'm trying to figure out what I should swap into it and whats the best way to do it. I'm thinking a awesome swap would be to take the EJ25 out and put in an EJ20 Turbo with the 6 speed. Possibly the EJ207 since I hear its the best of the bunch. I'm also reading that many people swap in the ej25. Is this the same ej25 that comes in my TS? and if so what do I need to do to it to get it going good? I would most likely still do a swap for a newer ej25 if I did go that route seeing as mine has 158k miles on it. Who knows how hard this would be, and could give me some advice on getting it done? I know from some research that pretty much every Subaru engine can be swapped with another Subaru engine as long as it's post 1990 with out an enormous amount of modifications via eastcoastswappers, but is there another engine that would give me more bang for my buck? Also, which car would be a better idea to work on if the Mazda doesn't sell? Would and STI Wagon be faster that a nearly 400 rwhp Rx8? |
01-17-2011, 08:10 PM | #1214 |
Scooby Guru
Member#: 46135
Join Date: Oct 2003
Chapter/Region:
Tri-State
Location: NY
Vehicle:19 GLA45 AMG C63 AMG |
I noticed that the NZ people call the 2005 EJ207 a V9 and the 2006-2007 a V10.
This would probably make the GR body EJ207 V11 This is all unofficial, of course, since Subaru dropped the version system. I think that it has been made clear as far as differences between V7 and 8. I didn't see much said about V9 and 10 other than they were very similar, except the intercooler was improved. Is anybody here running a V9 or V10? I mean, eventually, the supply of V7 and 8 will have to end, and people will have to move to newer engines. I know that the V11 is dual AVCS and throttle by wire. I also saw photos of the short block that seem to show a more sturdy design with thicker material in the cylinder area. It is still twinscroll. Is anybody here running a V11? Could a V11 be plug-and-play with a USDM Sti shell, due to throttle by wire OEM? Of course, the exhaust AVCS would have to be disabled, unless it's going into a 2008+ USDM sti shell. There should be more 9,10 and 11 on the market than 7 and 8. Eventually, these will have to be cheaper than the 7 and 8. Edit: Forgot to mention that in the GR body style, only the Spec C and I think that auto version, got a 207. Also, the 9 and 10 were Japan only, I think, as the world started to get 257. Last edited by Vlad; 01-17-2011 at 08:32 PM. |
01-17-2011, 08:58 PM | #1215 |
Scooby Specialist
Member#: 10854
Join Date: Oct 2001
Chapter/Region:
SCIC
Location: Los Angeles, CA.
Vehicle:'02 WRX; '08 OBXT; '08 G37 (S/C'd); '09 XF |
i'd build the RX8 if i were you, and keep the TS as a winter beater.
a 'nearly 400 rwhp RX8' would kill a ts with an sti motor. unless you're swapping the tranny and doing a lot of work on the chassis and suspension, the RX8 will be faster. consider that the turbo'd RX8 will out power an ej207 by 50+hp in most cases (ej207 with the twin scroll usually put out 320-360 whp... obviously with exceptions), and the RX8 is already a sports car chassis, so in the turns it would kill it too without modifications to the TS. generally speaking, a subaru wouldn't be a chassis i'd want to use as a sports car platform. bad weight distribution, really tall roof, front tires so far behind the engine, etc. BUT they're good for other things, like their interior space, awd, in your case, wagon body style, etc. that's why i'd use it as a dd/winter beater, and build the RX8 as the fast car. just my opinion. |
01-17-2011, 09:03 PM | #1216 |
Scooby Specialist
Member#: 10854
Join Date: Oct 2001
Chapter/Region:
SCIC
Location: Los Angeles, CA.
Vehicle:'02 WRX; '08 OBXT; '08 G37 (S/C'd); '09 XF |
oh, and as far as bang for buck - it's not in doing an engine swap and building a TS into a sports car. you'll end up nickel-and-diming yourself into a huge bill if you don't do all the work yourself. if you're looking for bang for buck, consider selling both and getting a used sti or something. or on the extreme end of things, if you really want to go fast for cheap, get a sport bike.
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01-23-2011, 01:02 AM | #1217 |
Scooby Newbie
Member#: 246455
Join Date: May 2010
Chapter/Region:
SCIC
Location: CA
Vehicle:2004 WRX Wagon WRB |
After reading through all 49 pages of this glorious thread, I have pulled the trigger on a JDM 2003 V8 207 motor for my 2004 WRX Wagon. I got it from a company called EagleJapanMotor.com out of Canada.
Here is what I have for my swap so far... -Complete JDM V8 EJ207 Long Block with TMIC, turbo...the works -ECU -Wiring harness -IA Performance AVCS wiring kit -Gates timing belt w/ OEM tensioner and all pulleys -OEM Water pump -Custom 3" downpipe for the VF-37 turbo EQ Tuning in CA will be tuning the car once the engine is installed and everything is working properly. I won't be able to do the swap until around September due to me deploying with the military in February. My question is how do I test the motor while it is out of the car for proper compression and leak-down to ensure that I received a good motor from the supplier since it wont be installed for a while. And what other things should I be looking at to tell if it is a good motor or not? Any and all help is greatly appreciated. Tom |
01-23-2011, 05:17 PM | #1218 | |
Scooby Newbie
Member#: 244358
Join Date: Apr 2010
Chapter/Region:
International
Location: JORDAN
Vehicle:1996 impreza orange & black |
Quote:
i want a built motor to crank up the boost too lol without feeling scared not only the bad tune plus i want the extra torque and high awhp but as i will take your word for it yet i don't understand it why don't you recommend touching the internals ? the kelfords recommended changing the springs should i take there word for it or leave stock ones ? i'm gana take your word for it and save up for a short block but as for the tuning here is the problem clarck and the only tuner we have is more of an EVO guy he doesn't know our motors well and to make it worse he's the only one in the region who tunes this type of ecu and i bought an HKS F-CON PRO V unit for an ecu with all the supports from boost trigger all the way to a lunch control mixer and HKS CAMP2 is there any way you can help me with that ? plus what do you think should i go the route of a twin scroll or stick to non twin scroll on the GT3076 ? and would it make any deference if i went the rotated path than the stock location ? Last edited by nedalrabadi; 01-23-2011 at 05:30 PM. |
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01-24-2011, 02:39 AM | #1219 | |
Scooby Newbie
Member#: 205748
Join Date: Mar 2009
Chapter/Region:
BAIC
Location: Jersey City, NJ
Vehicle:1998 RS/STi black |
Quote:
Congrats on the new V8 207, I love my V7 in my RS! I'm not sure you need to have the engine installed to do a compression test. As long as the engine can be advanced manually..i think. I know this is a side note, but Do you have any interest in a used in VG+ condition Spearco TMIC for that engine? I'm selling mine because I have an FMIC now. Last edited by picturegeek; 01-24-2011 at 02:40 AM. Reason: typo |
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01-24-2011, 03:20 AM | #1220 |
Scooby Newbie
Member#: 246455
Join Date: May 2010
Chapter/Region:
SCIC
Location: CA
Vehicle:2004 WRX Wagon WRB |
I have just a few questions about the swap, do you use the JDM EJ207 engine harness or did you use the USDM EJ205 engine harness? I have a local tuner shop that is telling me that I need to use my EJ205 engine harness and not the JDM engine harness that came with my V8 EJ207. I was under the impression that the motor is a direct swap. That I use the JDM 207 harness and plug it into my USDM chassis harness and run the IA Performance AVCS harness to use the AVCS system and plug it all into the JDM ECU. Is this correct or am I missing something? I have tried to find a thread that goes over the swap but I have not had any luck. If any one can point me in the right direction that would be awesome.
Thanks Tom |
01-24-2011, 08:23 AM | #1221 | |
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Join Date: Jun 2005
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MWSOC
Location: West Michigan
Vehicle:2015 TS EFR7163 818S V9 Spec C Type RA 92x |
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01-24-2011, 08:43 AM | #1222 |
Scooby Newbie
Member#: 246455
Join Date: May 2010
Chapter/Region:
SCIC
Location: CA
Vehicle:2004 WRX Wagon WRB |
Sounds good!!! Does the V8 EJ207 have the same emission controls as the USDM EJ205? I ask because I live in California and in order to get the JDM motor BAR certified so I wont have to worry about cops, it needs to have the same emission controls as the USDM engine.
Thanks Tom |
01-24-2011, 08:51 AM | #1223 |
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Join Date: Feb 2002
Location: TOPOHTO
Vehicle:1999 WRB GM6 2.34 LR destroker |
for emissions you will have to plug back stock ECU, block CELs
JDM ECU doesn't have the sector in it where USDM have their emissions written |
01-24-2011, 08:55 AM | #1224 |
Scooby Newbie
Member#: 246455
Join Date: May 2010
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SCIC
Location: CA
Vehicle:2004 WRX Wagon WRB |
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01-24-2011, 09:29 AM | #1225 |
Scooby Guru
Member#: 46135
Join Date: Oct 2003
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Tri-State
Location: NY
Vehicle:19 GLA45 AMG C63 AMG |
The hardware for emissions mandated, should probably be the same hardware which was installed in 2004, on the car you own.
I'm no lawyer, you may want to check this. In 2004, on your WRX, what do you have? -PCV, I expect the 207 will have it -EGR, I don't think the 2004 WRX has that, but check with the factory repair manual, the emissions section. What your car does probably have OEM is an up-pipe catalytic converter and an EGT probe associated with it. To do things "by the book", like you're suggesting, you'd have to transfer that to your 207. Your 207 is a V8, therefore twinscroll. There is no twinscroll catalysed up-pipe. You would have to revert to your factory single scroll manifold and up-pipe from 2004. You probably don't need to modify the engine harness, as the EGT probe plugs into the body harness, passenger side. How the JDM EJ207 will run with the single scroll up-pipe and what to tune for that, who knows... Is it that bad in California for inspection, do you really have to worry about 100% emissions? To me it kinda defeats the purpose of even having an EJ207. |
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