|
|
|
|
Thread Tools | Display Modes |
11-28-2012, 12:46 PM | #1 | |
Scooby Specialist
Member#: 17355
Join Date: Apr 2002
|
New Option for EJ Engines from King Engine Bearings
I see quite a few posts about engine bearing failures so I thought the article at http://www.autoserviceworld.com/news...es/1001890435/ might be of interest. According to the article:
Quote:
* Registered users of the site do not see these ads.
Last edited by Cocoa Beach Bum; 11-28-2012 at 12:52 PM. |
|
11-28-2012, 06:25 PM | #2 |
Scooby Specialist
Member#: 290592
Join Date: Aug 2011
Chapter/Region:
South East
Location: Charlotte, NC
Vehicle:15 Outback, 15 WRX 6MT CWP |
Seems like more of an issue on the 2.0L motors- but even so i'm not sure it's necessarily the design of the bearing that causes the failure.
|
11-28-2012, 08:09 PM | #3 |
Scooby Guru
Member#: 88618
Join Date: Jun 2005
Chapter/Region:
SCIC
|
Pure marketing bull****.
|
11-28-2012, 11:08 PM | #4 |
Scooby Guru
Member#: 255776
Join Date: Aug 2010
Chapter/Region:
MWSOC
Location: Laramie, WY
Vehicle:2010 LR WRX MPS powered. |
I heard about King Bearings doing something like this 6 months ago or more...There was a thread about it and I think I saw it floating around recently...
|
11-28-2012, 11:50 PM | #5 |
Former Vendor
Member#: 295846
Join Date: Sep 2011
Chapter/Region:
MWSOC
Location: Crook County, Illinois
Vehicle:WRX FP HTA GT3076R Sexual Chocolate |
The crank is the issue, oil will always take the path of least resistance. The OEM EJ crank is not designed for high revs.
not the best of designs especially when you're trying to spin to 9k and make 400+WHP It also depends on clearances, knock, ect. the two rods being supplied by one main doesn't help Last edited by Flat 4 Motorsport; 11-29-2012 at 12:36 AM. |
11-29-2012, 12:10 PM | #6 |
Scooby Specialist
Member#: 104200
Join Date: Jan 2006
Chapter/Region:
TXIC
Location: Austin TX
Vehicle:000 WHP BUGEYE Street Proven Performance |
We have a set here that we are going to be using in our 800hp ej257 that revs to 8500rpm.
|
11-30-2012, 01:33 AM | #7 |
Scooby Specialist
Member#: 75414
Join Date: Nov 2004
Chapter/Region:
RMIC
Location: Rock Springs,Wyoming
Vehicle:2004 STi Its the Blue one |
I run ACLs on mine and am doing a bigger build that will rev to 8500. Anyone have data on why these would outperform the ACLs.
|
11-30-2012, 10:22 AM | #8 |
Former Vendor
Member#: 200987
Join Date: Jan 2009
Chapter/Region:
MAIC
Location: VA
|
I had spoken with Ron Sledge for a good deal of time at PRI last year. I was thoroughly unimpressed, especially after sitting in his seminar (where he spouted rules of thumb) however I did drop a load of issues that we have and why.
I also made some suggestions that I wanted to test for the EJ, including a full grove #3 main and trying a 3/4 or maybe even a 1/2 groove for the #1 and #5. I guess he got someone to test it with!...or it's just marketing BS and it isn't tested yet -Micah P.S. IIRC Matt Ball pretty much gave him the same ear full that I did. |
12-01-2012, 09:27 AM | #9 |
Scooby Newbie
Member#: 339388
Join Date: Dec 2012
|
Hi , I see some Questions about XPG bearings
THIS is the story about it: We made research and found that Most of Bearing failure in Subaru EJ engines appear on CR #2 and #3. We received few failed bearings for inspection and found similar symptoms of Oil starvation. The question is why only CR#2 ,#3 and not CR #1 CR#4 Well, CR#1 get oil from MB#1, CR#4 get from MB#5, CR #2,#3 both get from MB #3 My conclusion was :the ability of single main (#3) to feed oil for 2 CR is limited therefore, Oil In Feed from Block into MB#3 and Oil Out Feed from MB#3 into CR#2,3 must improved. In feed (to MB#3) can improved by adding more oil holes or changing oil to Slot Out feed (to CR #2,3) can improved by changing oil grove to be folly 360 instead of partially 250 degrees. explanation :In 250 the oil delivery from MB to CR are turned on-off-on-off while crank rotate ~66% on 33% off In 360 degree it is 100% on Oil Groove could not modify to be 360 without changing the inside geometry of the Locating Lug. The oil will leak from oil Groove out trough the inside punched area of the Locating lug So this is all about it confused?? gideon |
12-01-2012, 09:32 AM | #10 |
Scooby Newbie
Member#: 174433
Join Date: Mar 2008
|
Is this a joke Gideon?
Okay I will bite.... so why 360 oiling at journals 1 and 5? iI understand the theoretical benefit of #3. How about sharing some data that a million dollar corp should have prior to little ol me buying unproven ideas on a $150 bearing set going into $20k engine rebuild? |
12-01-2012, 09:38 AM | #11 |
Scooby Newbie
Member#: 174433
Join Date: Mar 2008
|
Why don't you start on official KING bearing thread so everything stays together?
|
12-01-2012, 09:39 AM | #12 |
Scooby Newbie
Member#: 174433
Join Date: Mar 2008
|
yi..... i purchased a full set normal and oversized. My normal ones are your redesign (which I never asked for) and the oversized are the previous design. Makes it more difficult to swap bearings to get proper tolerances.
feel a bit cheated to be honest. |
12-02-2012, 07:58 PM | #13 |
Former Vendor
Member#: 200987
Join Date: Jan 2009
Chapter/Region:
MAIC
Location: VA
|
I see that Mel is going for the jugular
|
12-04-2012, 04:17 PM | #14 |
Scooby Specialist
Member#: 84105
Join Date: Mar 2005
Chapter/Region:
SCIC
Location: I'm a Newbie
Vehicle:2005 Super Slow STi CGM |
If some bearing company really wanted to listen and make some $$ they would make some oversized main bearings so one could align hone without decking the halves but what do I know
|
12-04-2012, 08:13 PM | #15 |
Scooby Specialist
Member#: 127745
Join Date: Oct 2006
Chapter/Region:
NWIC
Location: CA
Vehicle:06 WRX 30r 6 speed 99L EJ255 6 Speed |
|
12-05-2012, 07:25 PM | #16 |
Scooby Specialist
Member#: 184772
Join Date: Jul 2008
Chapter/Region:
MWSOC
Location: Conway, Arkansas
Vehicle:2004 WRX World Rally Blue |
|
12-10-2012, 10:22 PM | #17 |
Former Vendor
Member#: 93646
Join Date: Aug 2005
Chapter/Region:
MWSOC
Vehicle:Many Track Records Let us help you go fast! |
ok folks - I talked to the King guy at IMIS. I didn't beat around the bush at all. In fact, I was likely rather aggressively unfriendly.
Now, this is what I was told. Take it as you will. 1) The tang. They found that with the old stamped tang oil was getting behind the bearing though the cut and displacing the bearing into the crank. The new tang is upset as opposed to cut/stamped to eliminate the cut for oil to get into. 2) The feed holes #3 are now oval to keep from blocking the feed from the block. 3) the "trough" is now deeper to hold more oil 4) the holes for #5 are chamfered on the crank face side to hold more oil |
12-11-2012, 04:27 PM | #18 |
Scooby Specialist
Member#: 84105
Join Date: Mar 2005
Chapter/Region:
SCIC
Location: I'm a Newbie
Vehicle:2005 Super Slow STi CGM |
My thoughts:
Didn't see anything chamfered on #5 from my recollection but I will double check. The tang makes a bit of sense. The Mahle bearings did the same thing a long time ago. http://gruppe-s.blogspot.com/2010/07...ver-mahle.html With the expanded U holes and deeper grooves, it makes me want to run a bigger oil pump. |
12-11-2012, 07:43 PM | #19 | |
Scooby Newbie
Member#: 333602
Join Date: Sep 2012
Chapter/Region:
W. Canada
Vehicle:2012 STi DGM |
Quote:
Matt |
|
12-11-2012, 08:13 PM | #20 |
Former Vendor
Member#: 93646
Join Date: Aug 2005
Chapter/Region:
MWSOC
Vehicle:Many Track Records Let us help you go fast! |
Honestly. I'm not sure. I'm only repeating what I was told, but at the same time I'm not too interested in running them on a customer build just to see what happens. I too would need validation that the changes add up to better performance than what is currently out there.
|
12-11-2012, 09:00 PM | #21 | |
Scooby Newbie
Member#: 339388
Join Date: Dec 2012
|
Quote:
1) the Tang: problem we found is in inside surface of the tang (inside of the bearing), in the old Pahse1 engines, oil groove was 360 degs, the inside punched tang was very near to oil Groove, oil leaked from oil groove through tang and reduced oil pressure , to prevent oil leaks, Subaru engineers decided in phase2 engines to modified the oil groove , from 360 degs to be ~250 degs that modification terminated the oil leak, but with price of oil starvation in CR 2,3. we reverted the changed in the oil groove to be 360 again, and to prevent leaks we modified the lug. Gideon Saslavsky King Engine Bearings |
|
12-11-2012, 09:18 PM | #22 | |
Former Vendor
Member#: 93646
Join Date: Aug 2005
Chapter/Region:
MWSOC
Vehicle:Many Track Records Let us help you go fast! |
Quote:
|
|
12-12-2012, 12:47 PM | #23 |
Scooby Newbie
Member#: 174433
Join Date: Mar 2008
|
I have been in contact with King Bearings, and they are sending me the bearings that I initially requested. It appears that they even listen to the no-name little guys plugging away in their garages.
mel |
12-12-2012, 01:56 PM | #24 | ||
Former Vendor
Member#: 200987
Join Date: Jan 2009
Chapter/Region:
MAIC
Location: VA
|
Quote:
But those changes won't change the oil leakage during operation. It just ensures that it goes to the right place instead of out to the chamfer. Quote:
Last edited by 3MI Racing; 12-12-2012 at 02:02 PM. Reason: update on delivery of my pistons! |
||
12-12-2012, 02:02 PM | #25 |
Scooby Newbie
Member#: 174433
Join Date: Mar 2008
|
I am still not sold on the King theory. I would rather correct the oiling strategy with a proper crank. If I use these new XPG bearings, I will share any results good or bad.
|
Thread Tools | |
Display Modes | |
|
|