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Old 10-30-2021, 08:29 AM   #1401
snow_bound26
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Thinking my PCV valve is clogged or stuck based on how my car behaving right meow. Is the v7 PCV valve the same as the 02/03 USDM 205? Or is there a specific JDM part number I need to find?
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Old 10-30-2021, 12:10 PM   #1402
D-Rodman
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Originally Posted by snow_bound26 View Post
Thinking my PCV valve is clogged or stuck based on how my car behaving right meow. Is the v7 PCV valve the same as the 02/03 USDM 205? Or is there a specific JDM part number I need to find?


Same as 02-03 wrx, a threaded nipple onto the back of the intake manifold
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Old 10-30-2021, 12:52 PM   #1403
snow_bound26
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Originally Posted by D-Rodman View Post
Same as 02-03 wrx, a threaded nipple onto the back of the intake manifold


That's what was thinking since it's looks identical from the outside. Thanks
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Old 01-19-2022, 12:23 PM   #1404
HaasMonster
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I'm leaning towards swapping EJ207 into my 2005 WRX. I've considered short-block builds but would prefer to avoid the long break-in period since the car is mainly used for RallyX.

Is there anything I should be aware of when looking at V7 engines? They're getting up in age and inventory is low but I think they're more reliable than EJ205 swap for my needs.

I'm open to any suggestions!
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Old 01-20-2022, 06:38 PM   #1405
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Quote:
Originally Posted by HaasMonster View Post
I'm leaning towards swapping EJ207 into my 2005 WRX. I've considered short-block builds but would prefer to avoid the long break-in period since the car is mainly used for RallyX.

Is there anything I should be aware of when looking at V7 engines? They're getting up in age and inventory is low but I think they're more reliable than EJ205 swap for my needs.

I'm open to any suggestions!
get the nicest v8/9 engine you can find then prepare to overhaul it anyway
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Old 01-21-2022, 02:59 PM   #1406
D-Rodman
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He may be looking at a v7 in order to stay single scroll.
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Old 01-22-2022, 09:37 AM   #1407
Bluestreak03
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Quote:
Originally Posted by HaasMonster View Post
I'm leaning towards swapping EJ207 into my 2005 WRX. I've considered short-block builds but would prefer to avoid the long break-in period since the car is mainly used for RallyX.



Is there anything I should be aware of when looking at V7 engines? They're getting up in age and inventory is low but I think they're more reliable than EJ205 swap for my needs.



I'm open to any suggestions!
I would say that's ultimately going to based on budget, and at the very least if they can get a verified compression and leak down test... Won't make a difference if you go single or twin scroll... Minor things needing swapped
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Old 01-23-2022, 07:57 AM   #1408
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Choose wisely, do you already have a good turbo and turbo back exhaust you want to continue to use or are you looking for an all new setup ?
Do you have an Accessport you want or need to continue using or do you want to run on a jdm ecu with functional avcs and open source tuning ? Are you setting up a street/track car or street only, track only ?
The direction you need to take is based on many considerations, including budget.
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Old 05-20-2022, 03:22 PM   #1409
SunBurntGinger
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Question Nuetral Safety Switch Polarity V7 EJ207 2004 WRX

Hello!

I recently completed dropping in a used V7 EJ207 into my 2004 WRX. I have been following this EJ207 info thread which has been amazing help! I'm getting ready to start up the car. But before I do, I wanted to make sure the Neutral Safety Switch had the correct polarity. I'm a little confused on how to do this, and how to change the polarity if I end up needing to. I haven't used Romraider before. Is Romraider the only method to check the polarity?

My thoughts are that I'm overthinking this polarity thing and that all I have to do is cut the wires and just swap the wires around.

More info:
- Manual 5 speed
- AVCS wiring is installed
- The car has a remote start installed.* (Im assuming this affects things)
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Old 05-20-2022, 05:36 PM   #1410
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My understanding from what I remember from back in the day is NSS is reverse vs usdm. But everything else is the same.
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Old 05-20-2022, 05:39 PM   #1411
SunBurntGinger
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Okay so am I correct in thinking that i just cut the wires and flip the connections?
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Old 05-20-2022, 06:05 PM   #1412
iNfEk
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Quote:
Originally Posted by SunBurntGinger View Post
Okay so am I correct in thinking that i just cut the wires and flip the connections?
Donít cut anything. Just de-pin the 4 pin for 5MT or 6 pin for 6MT
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Old 05-20-2022, 09:21 PM   #1413
D-Rodman
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Default EJ207 Info

Have your tuner change it, thatís what I did because like you, I couldnít do it myself.

Sent from my iPhone using NASIOC

Last edited by D-Rodman; 05-21-2022 at 08:32 AM.
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Old 05-20-2022, 11:42 PM   #1414
NewSilverWRX
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You should be able to hex edit the ROM. This dependent on the ROM you are using. I did it for mine, v9 spec c into 2004 wrx 5mt. If I recall Romraider doesn't have a toggle for it hence the hex edit. Also, I think the problem is a NO vs NC thing, not polarity. If it was me I wouldn't cut or depin anything you can do with a simple rom edit.

Start here and search for NPS on the Romraider forums: https://www.romraider.com/forum/view...p?f=15&t=10794

Last edited by NewSilverWRX; 05-21-2022 at 02:56 AM.
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Old 05-21-2022, 07:12 PM   #1415
SunBurntGinger
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Thanks guys! Iíll see if I can do it my selfÖ Iíll need to get a tractixs cable and RomRaider. Then learn how to use it because Iíve never used it before! Lol. But regardless I should learn how to use RomRiader since my Cobb wonít work with the ecu anyways.
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Old 06-17-2022, 02:00 AM   #1416
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Hi guys. I have the following problem: I bought a Subaru Forester Cross Sport car, it has an ej207 cylinder block. But the block heads are marked RH H25 004 and LH H25 004. Tell me what these cylinder heads are from? There is a suspicion that they are from ej25 ...
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Old 06-17-2022, 11:17 AM   #1417
K3rm1tth3fr0g
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Originally Posted by FRST CS View Post
Hi guys. I have the following problem: I bought a Subaru Forester Cross Sport car, it has an ej207 cylinder block. But the block heads are marked RH H25 004 and LH H25 004. Tell me what these cylinder heads are from? There is a suspicion that they are from ej25 ...

Those should be from a 2.5L.


And sadly what makes the 207 special is all in the head.
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Old 06-27-2022, 02:06 AM   #1418
PhatCones
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I've always thought these were the best subaru engines
i have a JDM ej205
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Old 07-03-2022, 06:50 PM   #1419
NordyPi
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Hey everybody, just joined the platform recently. This thread has been really helpful in my research and shopping list for the swap. Here's my build list, check it out if you want and offer suggestions.
Edit: forgot to specify, platform is a stock 2002 WRX Wagon. USDM. It has no drivetrain mods except for turbo timer, and Cobb turboback exhaust. I do have an exhaust leak, but I can't build boost well so I'm assuming it is before the turbo and won't need a new downpipe or anything.

Engine and Stuff
JDM V7 EJ207 kit includes
- V7 ECU
- full engine wiring harness (uncut), as well as bulkhead harness (won't need that)
- turbo
- 6 Speed manual transmission (E3-TY856WB1CA)
- matching rear differential
- 4 axles
- 6 speed drive shaft

Maintenance
-NGK Iridium Spark Plugs One Step Colder 2667
-Aisin Timing Kit + Water pump
-STi Pink Timing Belt
-ACT Heavy Duty Performance Street Disc Clutch Kit
-Thermostat and Gasket
-Oil and filter (OEM filter, or recommendation? and 5W-40 Shell Rotella T6 if I can find any)
-Coolant
-Clutch fluid
-Gear oil

Reliability Mods
-KillerB Oil Pan Upgrade (for the EJ205, V7 EJ207 has the same style pan)
-Fumoto Oil Valve
-IAG AOS (has to be red of course)
-Getadom Cylinder 4 Cooling Mod
-Perrin 3-Port Boost Control
-Tune at BoostCreep (best tuner in Colorado?)
-DashCam! (this will be great for insurance stuff)

Gauges
These are all the ProSport Evo Red/Blue gauges
-Boost
-AFR (wideband)
-Oil Pressure
-Sandwich plate (for connectors)
-ATI Triple center pod

Depending on any leaks I find while doing maintenance while out of the car, I'll possibly need some new hoses / gaskets or whatever.
Reply with any recommendations or important swap details I overlooked!
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Old 07-03-2022, 07:23 PM   #1420
motorbykemike
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Quote:
Originally Posted by NordyPi View Post
Hey everybody, just joined the platform recently. This thread has been really helpful in my research and shopping list for the swap. Here's my build list, check it out if you want and offer suggestions.
Edit: forgot to specify, platform is a stock 2002 WRX Wagon. USDM. It has no drivetrain mods except for turbo timer, and Cobb turboback exhaust. I do have an exhaust leak, but I can't build boost well so I'm assuming it is before the turbo and won't need a new downpipe or anything.

Engine and Stuff
JDM V7 EJ207 kit includes
- V7 ECU
- full engine wiring harness (uncut), as well as bulkhead harness (won't need that)
- turbo needs more turbo! & an equal length header will really wake up a v7
- 6 Speed manual transmission (E3-TY856WB1CA) no dccd b/s to deal with , YES!
- matching rear differential r160 or r180?
- 4 axles if r180 you will need hybrid axles
- 6 speed drive shaft

Maintenance
-NGK Iridium Spark Plugs One Step Colder 2667 why colder?
-Aisin Timing Kit + Water pump bleed the tensioner , it's a thing
-STi Pink Timing Belt regular oem is fine
-ACT Heavy Duty Performance Street Disc Clutch Kit try south bend instead
-Thermostat and Gasket oem only
-Oil and filter (OEM filter, or recommendation? and 5W-40 Shell Rotella T6 if I can find any)
-Coolant
-Clutch fluid have fun bleeding that , and you car has the correct slave already
-Gear oil for the trans , valvoline works great , don't put anything too slippery in the trans or it may not want to shift , make sure you get the appropriate type for the rear you use

Reliability Mods
-KillerB Oil Pan Upgrade (for the EJ205, V7 EJ207 has the same style pan)
-Fumoto Oil Valve
-IAG AOS (has to be red of course) street
-Getadom Cylinder 4 Cooling Mod
-Perrin 3-Port Boost Control any 3 port
-Tune at BoostCreep (best tuner in Colorado?)
-DashCam! (this will be great for insurance stuff)

Gauges
These are all the ProSport Evo Red/Blue gauges these are absolute junk!
-Boost
-AFR (wideband) talk to your tuner
-Oil Pressure
-Sandwich plate (for connectors) pick up oil pressure off the avcs or turbo oil feed lines
-ATI Triple center pod

Depending on any leaks I find while doing maintenance while out of the car, I'll possibly need some new hoses / gaskets or whatever.
Reply with any recommendations or important swap details I overlooked!


have fun with it
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Old 07-04-2022, 01:01 AM   #1421
NordyPi
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Quote:
Originally Posted by motorbykemike View Post
have fun with it
According to this transmission spreadsheet I found, it is a R180.
So I will need to purchase hybrid axles? What does that mean?

In the future I plan for turbo upgrades and supporting mods, probably EQL, but stock for now.

Why would you recommend south bend over ACT?

Finally, what is bad about the Pro Sport gauges? Are they inaccurate or hard to use?
I personally like how the evo series look. Much better than the basic class ones they make.
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Old 07-04-2022, 08:52 AM   #1422
motorbykemike
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Quote:
Originally Posted by NordyPi View Post
According to this transmission spreadsheet I found, it is a R180.
So I will need to purchase hybrid axles? What does that mean? r180 rear axles will not fit with wrx hubs in the rear , try insane shafts for hybrids

In the future I plan for turbo upgrades and supporting mods, probably EQL, but stock for now.

Why would you recommend south bend over ACT? lower pedal effort , longer life , easier to modulate

Finally, what is bad about the Pro Sport gauges? Are they inaccurate or hard to use?
I personally like how the evo series look. Much better than the basic class ones they make. WOW , i cannot say how many times i have heard that and told people not to buy that junk , seen many bad things happen , and even pissed off a couple customers because i absolutely refuse to install them , ironically 75% of those same customers , most often not too long after they install them or pay someone else to , call complaining of one thing or ten about them , then they pay me to remove that crap and install something else , usually something i suggested in the first place , BUT THEY LOOK KEWL , AND THEY MAKE BEEPY BOOPY NOISES , prosport and glow shift are the same chinese b/s , inaccurate and unreliable readings , and thats before they break , and they will , or the oil pressure sender blows apart and burns your car to the ground , they are absolute junk

autometer has many flavors and have been running in my car subaru for 8 years , i have another car running around with 25 year old auto meters , never a hiccup

there are the more popular brands out there also like defi, which requires a controller , stack , aem , bosch , stewart warner

different pricing , but you get what you pay for


and talk to your tuner about the wideband , they may prefer one or the other for communication and connectivity
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Old 07-04-2022, 01:29 PM   #1423
Gigs90
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Vehicle:
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@jn_garage

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Quote:
Originally Posted by NordyPi View Post
Hey everybody, just joined the platform recently. This thread has been really helpful in my research and shopping list for the swap. Here's my build list, check it out if you want and offer suggestions.
Edit: forgot to specify, platform is a stock 2002 WRX Wagon. USDM. It has no drivetrain mods except for turbo timer, and Cobb turboback exhaust. I do have an exhaust leak, but I can't build boost well so I'm assuming it is before the turbo and won't need a new downpipe or anything.

Engine and Stuff
JDM V7 EJ207 kit includes
- V7 ECU
- full engine wiring harness (uncut), as well as bulkhead harness (won't need that)
- turbo
- 6 Speed manual transmission (E3-TY856WB1CA)
- matching rear differential
- 4 axles
- 6 speed drive shaft

Maintenance
-NGK Iridium Spark Plugs One Step Colder 2667
-Aisin Timing Kit + Water pump
-STi Pink Timing Belt
-ACT Heavy Duty Performance Street Disc Clutch Kit
-Thermostat and Gasket
-Oil and filter (OEM filter, or recommendation? and 5W-40 Shell Rotella T6 if I can find any)
-Coolant
-Clutch fluid
-Gear oil

Reliability Mods
-KillerB Oil Pan Upgrade (for the EJ205, V7 EJ207 has the same style pan)
-Fumoto Oil Valve
-IAG AOS (has to be red of course)
-Getadom Cylinder 4 Cooling Mod
-Perrin 3-Port Boost Control
-Tune at BoostCreep (best tuner in Colorado?)
-DashCam! (this will be great for insurance stuff)

Gauges
These are all the ProSport Evo Red/Blue gauges
-Boost
-AFR (wideband)
-Oil Pressure
-Sandwich plate (for connectors)
-ATI Triple center pod

Depending on any leaks I find while doing maintenance while out of the car, I'll possibly need some new hoses / gaskets or whatever.
Reply with any recommendations or important swap details I overlooked!
I would add more gaskets and such to your service most are going to be in need of replacement , master oem gasket sets can be sourced from JapanParts or Flatirons tuning by you.

Unless you are going to upgrade a turbo I would not worry about an ACT clutch the oem 6mt clutch is a fantastic part for very cheap.

You really don't need any of those reliability mods unless you are going to see serious track time. AOS is kinda nice as it keeps the intercooler cleaner but also keep in mind some of the fittings will have issues on the EJ207 as we had to get creative with some of the breather fittings to make the USDM kit work on my V9 207.

Like others have said prosport are some of the cheapest chinese gauges in the market , my father had over 4 senders die on his wrx back in 2010-2015. Meanwhile I have had the same set of Defi gauges on my car since 2015 with no sender issues at all.

Unfortunately you get what you pay for , Same can be said of an ecu calibration which will be important as the stock EJ207 timing tables are pretty aggressive.
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Old 07-05-2022, 01:11 AM   #1424
D-Rodman
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Vehicle:
02 Bugeye JDM STi
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Default

Quote:
Originally Posted by NordyPi View Post
Hey everybody, just joined the platform recently. This thread has been really helpful in my research and shopping list for the swap. Here's my build list, check it out if you want and offer suggestions.
Edit: forgot to specify, platform is a stock 2002 WRX Wagon. USDM. It has no drivetrain mods except for turbo timer, and Cobb turboback exhaust. I do have an exhaust leak, but I can't build boost well so I'm assuming it is before the turbo and won't need a new downpipe or anything.

Engine and Stuff
JDM V7 EJ207 kit includes
- V7 ECU
- full engine wiring harness (uncut), as well as bulkhead harness (won't need that)
- turbo
- 6 Speed manual transmission (E3-TY856WB1CA)
- matching rear differential
- 4 axles
- 6 speed drive shaft

Maintenance
-NGK Iridium Spark Plugs One Step Colder 2667
-Aisin Timing Kit + Water pump
-STi Pink Timing Belt
-ACT Heavy Duty Performance Street Disc Clutch Kit
-Thermostat and Gasket
-Oil and filter (OEM filter, or recommendation? and 5W-40 Shell Rotella T6 if I can find any)
-Coolant
-Clutch fluid
-Gear oil

Reliability Mods
-KillerB Oil Pan Upgrade (for the EJ205, V7 EJ207 has the same style pan)
-Fumoto Oil Valve
-IAG AOS (has to be red of course)
-Getadom Cylinder 4 Cooling Mod
-Perrin 3-Port Boost Control
-Tune at BoostCreep (best tuner in Colorado?)
-DashCam! (this will be great for insurance stuff)

Gauges
These are all the ProSport Evo Red/Blue gauges
-Boost
-AFR (wideband)
-Oil Pressure
-Sandwich plate (for connectors)
-ATI Triple center pod

Depending on any leaks I find while doing maintenance while out of the car, I'll possibly need some new hoses / gaskets or whatever.
Reply with any recommendations or important swap details I overlooked!


2667 is stock heat range on ver7, you want 2668 to go one step colder. I agree with those that suggest replacing as many gaskets as possible, easier to do with the engine out of the car. Remove all the mesh screens from the turbo oil lines. You want to prep the engine so it can run another 100,000 miles.


Sent from my iPhone using NASIOC
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Old 07-06-2022, 01:34 AM   #1425
NordyPi
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Vehicle:
2002 WRX Wagon
WRB

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Quote:
Originally Posted by Gigs90 View Post
Unless you are going to upgrade a turbo I would not worry about an ACT clutch the oem 6mt clutch is a fantastic part for very cheap.

You really don't need any of those reliability mods unless you are going to see serious track time. AOS is kinda nice as it keeps the intercooler cleaner but also keep in mind some of the fittings will have issues on the EJ207 as we had to get creative with some of the breather fittings to make the USDM kit work on my V9 207.
I was planning on upgrading turbo and power when I finish college in 3 years. I figured I would upgrade the clutch for greater future power, but maybe I just wait until then and get a new one? I estimate I'll be driving between 2-5 thousand miles a year at most.

I was pretty set on AOS even without tracking in mind, since I know how helpful they are. But the fitment issues pose a challenge. So you swapped in a V9? Into which chassis? And was it just the engine, or also the trans and other drivetrain parts?

This V7 kit I found is really expensive, but the V9 is quite a bit cheaper even including full brembo corners. Even if I have to buy a V7/V8 ECU because the V9 ECU is immoblized, and a twin scroll downpipe, it might make more sense than the V7 kit for the price.
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