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05-23-2016, 09:10 AM | #876 | |
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Join Date: Nov 2007
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MWSOC
Location: WI
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Quote:
1. Turn the diameter down (lathe) 2. Extend the timing notch (mill) This could be done on a lathe with live tooling, but it was easier to do it in two setups for the shop I work with. It is running without issues related to the cam sensors. I'm having a problem with ignition timing advance being way too far advanced at time, but it's something that I don't think is related to the cam sensors. This issue has been seen by tuners on the 04-05' STi ECU with the stock EJ257 engine. Only the driver side cam was modified. There was also clearance that needs to be ground on the cam bearing cap around the friction weld area on the cam. Like in the OP's post it was only a problem on one side. Everything else about the swap is good, o-rings sealed up perfect, etc. If you're interested I can have the shop I work with modify your cam. Their prices are pretty reasonable. PM me if interested.
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05-28-2016, 10:32 AM | #877 |
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Update: It appears that using 2005 STi EJ257 intake cams and V9 EJ207 exhaust cams can result in valve interference if the AVCS timing from an EJ207 is used. I still need to confirm with a scope down the spark plug hole, but the knocking noise I had in the engine is gone once I changed the AVCS timing back to EJ257 ranges (much less advance).
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09-19-2016, 02:16 PM | #878 |
Scooby Newbie
Member#: 64102
Join Date: Jun 2004
Chapter/Region:
RMIC
Location: Front Range
Vehicle:05 STi 48W |
I am currently dropping a V7 EJ207 into my '05 STi (EJ257 spun a rod bearing). I wish I would have seen the post about machining the cam 2 weeks ago as I went ahead and slotted the cam position sensor hole for the USDM sensor. Really wasn't crazy about grinding on my new-to-me EJ207, but oh well. I have a friend who will probably do this swap in the near future (once he sees mine working), and I think machining the cam is the way to go.
A few observations: The plug for the knock sensor is different, so you will have to replace the JDM knock sensor with a USDM knock sensor. The plugs for the AVCS solenoids are different, so for the time being I decided to use my USDM AVCS solenoids. I have not ruled out the possibility of using modifying the USDM harness to work with the JDM plugs however. The cam cap on the drivers side must be modified to clear the friction welds on the cams. Check the valve clearance on the exhaust cams. Mine were out on the drivers side and needed different buckets. Passenger side was good to go. I haven't quite figured out the PCV system completely yet. I did swap the nipple on the back of the USDM DBW intake manifold with a WRX PCV as that is what the JDM motor uses. I am about 90% complete on setting up the PCV. USDM EJ257 coils will not fit into the EJ207, the boots are too short. Be sure to buy the correct cam seals. I am using PN 806742160 on the intake cams, and 806732160 on the exhaust cams. Valve cover seals are specific to the EJ207. I bought mine from IA Performance. Spark plug gaskets and bolt washer/gaskets are the same as the 2.0 WRX. I am planning on upgrading to a Steamspeed STX 67+ or 71 turbo once I have this up and running as I already have 850cc DW side-feed injectors from running E85 (back when you could actually find it around here). Last edited by decodeddiesel; 09-19-2016 at 02:25 PM. |
09-19-2016, 05:02 PM | #879 | |
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Join Date: Nov 2007
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MWSOC
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Quote:
Also, if you need the cams machined let me know. I can get them done at a reasonable price. |
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09-19-2016, 05:53 PM | #880 | |
Scooby Newbie
Member#: 64102
Join Date: Jun 2004
Chapter/Region:
RMIC
Location: Front Range
Vehicle:05 STi 48W |
Quote:
Did you ever figure out the potential interference issues you mentioned here? |
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09-20-2016, 08:21 AM | #881 | |
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Member#: 165141
Join Date: Nov 2007
Chapter/Region:
MWSOC
Location: WI
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09-20-2016, 11:17 AM | #882 |
Scooby Newbie
Member#: 64102
Join Date: Jun 2004
Chapter/Region:
RMIC
Location: Front Range
Vehicle:05 STi 48W |
Don't feel bad about not driving your swap much, my STi has been sitting dormant in my garage for 4 years now. Even once I get the V7 running, she's not going to be my daily and I don't see me driving her more than a few hours a week tops. She's going to be much more track focused.
I am curious as to how the advance will work out during the tune. Correct me if I'm wrong, but the 40 degree advance limit is set by the JDM cam gears themselves, correct? Only reason why I am asking is I swapped in my USDM AVCS solenoids to match the plugs on my wiring harness. I compared the JDM and USDM solenoids and they look completely identical to me. |
09-20-2016, 01:06 PM | #883 | |
Scooby Specialist
Member#: 165141
Join Date: Nov 2007
Chapter/Region:
MWSOC
Location: WI
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Quote:
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09-20-2016, 01:53 PM | #884 | |
Scooby Newbie
Member#: 64102
Join Date: Jun 2004
Chapter/Region:
RMIC
Location: Front Range
Vehicle:05 STi 48W |
Quote:
Are you still on the JDM turbo? Do you have a V7, 8 or 9? Have any dyno graphs to share? |
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09-21-2016, 10:45 AM | #885 | |
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Join Date: Nov 2007
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Location: WI
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Quote:
The engine is a V9, but no dyno graphs at this point because I haven't finished the tune. |
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09-21-2016, 10:51 AM | #886 |
Scooby Newbie
Member#: 64102
Join Date: Jun 2004
Chapter/Region:
RMIC
Location: Front Range
Vehicle:05 STi 48W |
Thanks for getting back to me. Good luck!
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09-22-2016, 02:24 AM | #887 |
Scooby Newbie
Member#: 322068
Join Date: Jun 2012
Chapter/Region:
SWIC
Location: GIlbert, AZ
Vehicle:02 RSTI, 01 SS/SLP 03 Sonic Yellow WRX |
V7 sti rear seat? Nice i got one on my wagon too. Your the only other person ive seen with one in AZ. Know of anyone else with them?
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09-22-2016, 02:26 AM | #888 | |
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Member#: 322068
Join Date: Jun 2012
Chapter/Region:
SWIC
Location: GIlbert, AZ
Vehicle:02 RSTI, 01 SS/SLP 03 Sonic Yellow WRX |
Quote:
If you ever decide to sell these please let me know! |
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11-08-2016, 02:11 AM | #889 | |
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Member#: 249130
Join Date: Jun 2010
Chapter/Region:
NWIC
Location: North East Portland
Vehicle:1999 Ver5 STi RA Aspen White |
Quote:
Did you find a fitting/adapter that fir the Feed line? The feed line is different than the return. The 5/16 hard line adapters do not fit on the feed line because the tip of the line is bigger, more like 3/8. ive bought 2 different fittings only to find that they dont work. The push on style doesnt lock, and the fitting w/ Ferrell doesnt work bcuz the Ferrell doesnt slide over the tip. So i was wondering if the fitting you used on this return line fit on the feed as well. I notice that it is different than the 2 ive tried, but the only problem that i see is that the feed line doesnt have that "rib" an inch or so back like the return line does to create resistance for the fitting??? what do you think? Last edited by WelDun1; 11-08-2016 at 02:16 AM. |
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12-07-2016, 03:08 PM | #890 |
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Join Date: Apr 2007
Chapter/Region:
International
Location: PM SkimSTI for FREEEEEEEEEEEEE
Vehicle:HJ's Ask Hobbs. He knows. |
Bump.
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12-19-2016, 03:56 PM | #891 |
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Member#: 459995
Join Date: Dec 2016
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I know this is probably beating an old dead horse, but I am interested in the adapter plate you made to adapt the stock usda throttle body to the jdm intake, we are having issues with our set up and came across your thread with the adapter plate, I am new to this forum and not sure how to contact you
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12-28-2016, 09:56 PM | #892 |
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Member#: 34292
Join Date: Mar 2003
Chapter/Region:
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awesome build
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03-31-2017, 11:27 AM | #893 |
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Member#: 208639
Join Date: Apr 2009
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Hi - I'm also looking for a decent adaptor plate for a DBW TB onto a spec c manifold - there's very little out there and nothing as nice as kpluiten designed one here - Unfortunately his inbox is full so I've not been able to contact him. If anyone knows if he's still making these - please let me know!
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04-03-2017, 10:33 AM | #894 |
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Member#: 145105
Join Date: Apr 2007
Chapter/Region:
MAIC
Location: Middle River, Maryland
Vehicle:2015 Honda Accord |
Nice bump!
Is KP still around? |
04-03-2017, 01:01 PM | #895 | |
Scooby Specialist
Member#: 165141
Join Date: Nov 2007
Chapter/Region:
MWSOC
Location: WI
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Quote:
If he's not making them anymore I can make a few up. -Mark |
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04-24-2017, 11:05 AM | #896 |
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Member#: 61155
Join Date: May 2004
Vehicle:1997 Sti V3 V-ltd 555 blue |
Hi - Mark - I've not been able to contact him at all - would really appreciate it if you might be able to help me out - I'll drop you a PM.
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05-18-2019, 04:43 PM | #897 |
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Member#: 34292
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05-28-2019, 11:27 AM | #898 |
Scooby Guru
Member#: 145105
Join Date: Apr 2007
Chapter/Region:
MAIC
Location: Middle River, Maryland
Vehicle:2015 Honda Accord |
Damn! That 2 year old bump
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05-28-2019, 01:00 PM | #899 |
Scooby Specialist
Member#: 138994
Join Date: Jan 2007
Location: apparently I "spread the hate"
Vehicle:2006 WRX, 6MT, 5x114 |
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05-28-2019, 01:42 PM | #900 |
Scooby Guru
Member#: 145105
Join Date: Apr 2007
Chapter/Region:
MAIC
Location: Middle River, Maryland
Vehicle:2015 Honda Accord |
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