Max Capacity Posted September 30, 2012 Author Share Posted September 30, 2012 Took 3% fuel out, adjusted the cams, adjusted boost. Car feels much more responsive now and smoother. Took just over a hour. We do loops from exit 65 to 70 on Rt84. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
xt2005bonbon Posted October 1, 2012 Share Posted October 1, 2012 (edited) adjusted the cams Care to elaborate how you did that? Always learning here. Edited October 1, 2012 by xt2005bonbon Link to comment Share on other sites More sharing options...
Max Capacity Posted October 1, 2012 Author Share Posted October 1, 2012 Care to elaborate how you did that? Always learning here. I guess you missed this post. Mike did it while doing the street tune. I'm meeting with Mike tomorrow morning to have him clean up or trouble shoot my slight stumble at part throttle acceleration under boost. I can lift a bit and the stumble seems to stop and the power increases a bit. I'm thinking it could be boost control, as I'm all stock in that area. Here's his facebook page, http://www.facebook.com/TuningAlliance he's also back on this forum. I guess he has a little more time now, he must have finish his projects around the house he bought. He felt the stumble while getting on the highway in 3rd and 4th gear, he began making adjustments with the lap top. By the second time I rolled into 3/4-7/8 throttle, it was a little better. It kept getting better and better as he made adjustments. I'm assuming he must be able to adjust oil flow to the cams, isn't that how the Variable valve timing works ? He's the guy with the brains, that's what I pay him for. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
xt2005bonbon Posted October 1, 2012 Share Posted October 1, 2012 I guess you missed this post. Mike did it while doing the street tune. He felt the stumble while getting on the highway in 3rd and 4th gear, he began making adjustments with the lap top. By the second time I rolled into 3/4-7/8 throttle, it was a little better. It kept getting better and better as he made adjustments. I'm assuming he must be able to adjust oil flow to the cams, isn't that how the Variable valve timing works ? He's the guy with the brains, that's what I pay him for. I did see that post actually. I was just under the impression that he actually mechanically adjusted something related to the camshafts in under one hour (e.g. valve clearance, etc...). So I was like "wow, How did they do that?" Link to comment Share on other sites More sharing options...
Max Capacity Posted October 1, 2012 Author Share Posted October 1, 2012 No it's all done from the Lap Top. It's truely amazing what can be done, he was saying if he had a wide band to plug in he could get it even better. He also hinted that the 5th gen GT's have the same timing flaw in the oem map, just not as bad as these cars do. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
xt2005bonbon Posted October 1, 2012 Share Posted October 1, 2012 He also hinted that the 5th gen GT's have the same timing flaw in the oem map, just not as bad as these cars do. interesting. Link to comment Share on other sites More sharing options...
Max Capacity Posted October 1, 2012 Author Share Posted October 1, 2012 (edited) interesting. Thought it would be, I wonder if it's talked about in the 5th gen forums or Tuning forum. Anyway's he did say I should get a little better mpg now too. That's always a good thing. Edited October 1, 2012 by Max Capacity 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Nrw Posted October 1, 2012 Share Posted October 1, 2012 All subaru's have that problem. Link to comment Share on other sites More sharing options...
Max Capacity Posted November 16, 2012 Author Share Posted November 16, 2012 bump to the top for the new guy's the need a engine replaced. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Max Capacity Posted November 18, 2012 Author Share Posted November 18, 2012 8500 miles on the short block, dash is reading 26.5mpg on the drive back from VT today, This was it's second weekend trip skiing. I've noticed this engine has more of the cold piston noise then the original block had, but once warmed up it's as quiet as the Spec's engine is always. I just drive it easy till it begins to warm up. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
OutbackXT05 Posted December 8, 2012 Share Posted December 8, 2012 I wish my shortblock lasted. Gonna have to do a rebuild on it already. 3900 miles on a 2012 ej257 and its #4 piston go boom again. And thats with equal length headers. Link to comment Share on other sites More sharing options...
ibr_adam09 Posted December 8, 2012 Share Posted December 8, 2012 So this thread is a good reference for my build. I still haven't received my motor yet. Shop said a good chance will be early next week. And outbackxt05, that sucks. Link to comment Share on other sites More sharing options...
Max Capacity Posted December 8, 2012 Author Share Posted December 8, 2012 I wish my shortblock lasted. Gonna have to do a rebuild on it already. 3900 miles on a 2012 ej257 and its #4 piston go boom again. And thats with equal length headers. Who did the Tune ? A few other guy's have had there ej257's have piston issues too. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
lieutenantcolumbo Posted December 8, 2012 Share Posted December 8, 2012 I wish my shortblock lasted. Gonna have to do a rebuild on it already. 3900 miles on a 2012 ej257 and its #4 piston go boom again. And thats with equal length headers. Which brand of pistons? Link to comment Share on other sites More sharing options...
OutbackXT05 Posted December 9, 2012 Share Posted December 9, 2012 It was infamous tuned. 100% oem block/pistons and only ~230-260whp range. Ya ive heard a couple bad stories about the 08+ stuff and one story almost identical to mine except his went at 44k then 48k. Where as mine was 85k then 89k miles. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted December 9, 2012 Share Posted December 9, 2012 Did you ever check your injectors? Link to comment Share on other sites More sharing options...
OutbackXT05 Posted December 9, 2012 Share Posted December 9, 2012 No i didnt. Last time it was dynod it was a solid 12.5 or so i believe all the way to redline if i remember correctly Link to comment Share on other sites More sharing options...
AZP Installs Posted December 9, 2012 Share Posted December 9, 2012 And this is why we NEVER suggest rebuilding with OEM pistons. We've seen this issue happen time and time again. My 05 LGT went through 2 motors/piston sets in less than 100k miles and it was bone stock. My 11 STi had a motor replaced at 25k miles and it was bone stock as well. -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
HAMMER DOWN Posted December 9, 2012 Share Posted December 9, 2012 In your opinion, is it a quality control issue with the OEM pistons or the OEM tune or maybe both. I & few others are over 200k on original motors & plenty over 100k with no issues. For me, I ran stock tune for 60k, Cobb, stage 1-93 map to 174k & currently run custom stage 2 map from Tuning Alliance. Mike Mileage:331487 Retired/Sold Link to comment Share on other sites More sharing options...
AZP Installs Posted December 9, 2012 Share Posted December 9, 2012 In your opinion, is it a quality control issue with the OEM pistons or the OEM tune or maybe both. I & few others are over 200k on original motors & plenty over 100k with no issues. For me, I ran stock tune for 60k, Cobb, stage 1-93 map to 174k & currently run custom stage 2 map from Tuning Alliance. Mike Good question. We have seen cars like yours with stock tunes last up into the high 100s etc with no issues. Have you ever tracked your car and or drove it at high RPMs for any extended period of time? For example 30 minutes on a canyon road really giving it a workout? My guy feeling is that it is the QC of the pistons themselves because there is no easily deciphered pattern of the failures. -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
HAMMER DOWN Posted December 9, 2012 Share Posted December 9, 2012 Yes, drag strip & mountain roads. More like 10-15 minute workout. When I'm in the twisted mountain roads I don't like using my brakes. I use the motor's RPM's from 3k to 7k. Also have 120 mile round trip to work daily. Shifting is usually around 5500 rpms. Plus I tow with it. http://legacygt.com/forums/showthread.php/much-have-you-towed-your-legacy-144604.html?t=144604&highlight=towed I just mite not driving it hard enough to break my pistons. I think I do drive it hard. Mike Mileage:331487 Retired/Sold Link to comment Share on other sites More sharing options...
AZP Installs Posted December 9, 2012 Share Posted December 9, 2012 Yes, drag strip & mountain roads. More like 10-15 minute workout. When I'm in the twisted mountain roads I don't like using my brakes. I use the motor's RPM's from 3k to 7k. Also have 120 mile round trip to work daily. Shifting is usually around 5500 rpms. Plus I tow with it. http://legacygt.com/forums/showthread.php/much-have-you-towed-your-legacy-144604.html?t=144604&highlight=towed I just mite not driving it hard enough to break my pistons. I think I do drive it hard. Mike Well that further supports the argument that it is QC issue. Although we've seen cars dyno at full power despite having cracked ringlands. So unless you've had a leakdown or compression test done, you may have a cracked ringland for you know. -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
OutbackXT05 Posted December 9, 2012 Share Posted December 9, 2012 Ya thats like my last motor. #2 had a huge chunk that was cracked and held the same exact compression as #1 and 3. #4 on the other hand had like 40 and 7 cracks Link to comment Share on other sites More sharing options...
HAMMER DOWN Posted December 10, 2012 Share Posted December 10, 2012 Well that further supports the argument that it is QC issue. Although we've seen cars dyno at full power despite having cracked ringlands. So unless you've had a leakdown or compression test done, you may have a cracked ringland for you know. -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" IIRC, did compression test at 174k, before I want stage 2+. My test: 1) 145psi, 2)150psi, 3)145psi, 4)147psi. Mike Mileage:331487 Retired/Sold Link to comment Share on other sites More sharing options...
AZP Installs Posted December 10, 2012 Share Posted December 10, 2012 IIRC, did compression test at 174k, before I want stage 2+. My test: 1) 145psi, 2)150psi, 3)145psi, 4)147psi. Mike NICE! Count your blessings -Mike Paisan http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg 11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts. Call directly as We carry almost every manufacturer now, so before you buy parts call us. Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) | T-1 Certified Amsoil Direct Jobber |AIM: AZP Installs "Race Tested, Enthusiast Approved!" Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now