joeleodee Posted December 3, 2011 Share Posted December 3, 2011 A little background. My previous vehicle was a '98 Legacy GT Limited AT that I absolutely loved, but it fell a little bit short on the power potential without big money. In the fall of 2008, It was time for an upgrade, so there were a few vehicles I considered. Since my replacement would remain my daily driver, certain criteria had to be met. Reliable Perform well in all seasons Comfortably transport my family Wife approved attractive design Rather uncommon Available manual transmission Good power out of the box Good upgrade and aftermarket potential When weighing all the criteria, a few vehicles came to mind. Those include the G35 sedan (expensive at the time with AWD), Audi S4 (same), Mazdaspeed6 (couldn't even find one to test drive), and obviously the Legacy GT. Needless to say, the Legacy GT was the best candidate especially since I liked my '98, figured an updated version of it I'll like even better. I looked at a few different 4th gen Legacy GTs before purchasing mine in September 2008. I chose this one for all the usual reasons; best price per mileage, color, options, etc. It was bone stock when I bought it, but that didn't last long. Purchased and Accessport and flashed to a stg1 map. Shortly after that, I got a downpipe and catless uppipe and flashed to a stg2 map. As time went on, more and more parts got added and it would take me forever to chronicle the piece by piece installation so rather, several years later, here's what's been done.Yes, at the time of this posting I've been sitting on this turbo for about 2 and a half years. It was the last of Edmundu's huge part out thread so I got it. After we made the deal, he noticed that there was a crack in the turbine housing. He had a new and upgraded turbine housing shipped to me and I had that ported and coated. For the next year, I gathered parts for the upgrade. Here is my current setup. Vehicle 2005 Legacy GT Limited 5 speed MT Regal Blue Pearl 102k miles and counting Mods -E85 fueling -KSTech 83mm CAI -TurboXS Shorty massive 4" downpipe -Grimmspeed coated EWG uppipe and dump tube -Tial 44mm EWG -Cobb IWG bracket (short) -Ported and coated stock manifolds -Grimmspeed ported crosspipe -Perrin mid and y pipe. -Prodrive mufflers (stock mufflers until spring) -AVO FMIC TurboXS 50/50 BOV -APS solid turbo inlet -JDM TGV deletes ported -DW 1100cc sidefeed injectors (true flow is over 1200) -Walbro 450 fuel pump -AVO 450 BB turbo ported and coated Tuning Necessities -Cobb V2 Accessport -Access Tuner Race Cobb -Innovate LC1 WBO2 sensor. -Grimmspeed 3 port boost control solenoid and MBC (hybrid boost control) Drivetrain Competition Clutch Stage 3 Segmented disk LW Competition flywheel TSK3 snout sleeve Group N tranny mount Group N motor mounts Agency Power pitch stop mount Custom fabricated tranny blast plates Brakes -DBA slotted rotors -Project MU NS400 brake pads Suspension mods Koni inserts (4 corners) Tein H Tech lowering springs Cobb sway bars front and rear Moog end links AVO reinforcement brackets Whiteline ALK AVO steering rack bushings Wheels and tires BBS RC 18x7.5" +38mm offset Falken ZE912 A/S 235/40r18 As the car sits, all parts above have been installed and the car is running, however not fully tuned. An updated base map needs to be flashed to the ecu before we go any further. I can tell you that at only 14psi, this thing pulls hard and its street manners are actually more mild than the stock vf40. Not nearly as punchy with smooth power delivery throughout. At least that's what the butt dyno tells me. This thread will be updated as the car gets further tuned. I'll be posting logs as they come available as well as dyno graphs. This weekend, we will be working on completing a 93 octane winter tune. Springtime will add an E85 tune to the equation. This was being tuned by a tuner, but I've since taken over the workload assisted by member qikslvr. Qikslvr has helped me immensely get to this point so I'd like to thank him publicly for his efforts. Stay tuned (bad pun) http://i108.photobucket.com/albums/n29/joeleodee/Mobile%20Uploads/23014818043_04e47af4ba_h_zpssa8ccwwa.jpg http://i108.photobucket.com/albums/n29/joeleodee/IMAG0752_zpsazfgbhan.jpg http://i108.photobucket.com/albums/n29/joeleodee/AVO450full_zpslghtxrnj.jpg Link to comment Share on other sites More sharing options...
Spec B Posted December 3, 2011 Share Posted December 3, 2011 Looking forward to some results! Good luck. Link to comment Share on other sites More sharing options...
sumfoo1 Posted December 3, 2011 Share Posted December 3, 2011 Subscribed Link to comment Share on other sites More sharing options...
NSFW Posted December 4, 2011 Share Posted December 4, 2011 That should be fun. Link to comment Share on other sites More sharing options...
Dan_K Posted December 6, 2011 Share Posted December 6, 2011 subscribed Link to comment Share on other sites More sharing options...
07spec_b Posted December 6, 2011 Share Posted December 6, 2011 Would like to see the avo450 graph I run the 500 Link to comment Share on other sites More sharing options...
Balrock Posted December 6, 2011 Share Posted December 6, 2011 Miss Edmundu! He was a great source of information and help on here. Nice to know a part of him lives on...LoL! In for results. Link to comment Share on other sites More sharing options...
technicalgarage Posted December 7, 2011 Share Posted December 7, 2011 Are you using avo's braided oil feed with the stock hardpipe off the head or a custom line? I'm trying to adapt the infamous filter kit to my avo 380 and was wondering about oil restrictors and what others have done if anything Link to comment Share on other sites More sharing options...
joeleodee Posted December 7, 2011 Author Share Posted December 7, 2011 Would like to see the avo450 graph I run the 500 Would like to see graphs of yours as well. Do you daily that? The 450 is the biggest I was willing to tolerate. This vehicle is a four season all weather driver. As it sits, it's running great. I have no trouble starting the car in the sub 20 degree weather and no idling issues that everyone seems scared of with big sidefeeds. We could not do any tuning over the weekend, though. A snow storm hit and frigid temps followed. Hopefully, we can get out on the road this week and I can post some logs for you guys. Are you using avo's braided oil feed with the stock hardpipe off the head or a custom line? I'm trying to adapt the infamous filter kit to my avo 380 and was wondering about oil restrictors and what others have done if anything Yes, braided oil feed to the hardline. I can post a pic if you want. Also, ask scooby2.5. He's running a 380 as well. Link to comment Share on other sites More sharing options...
BDII Posted December 7, 2011 Share Posted December 7, 2011 subscribed for graph Need forum help? Private Message legGTLT Link to comment Share on other sites More sharing options...
07spec_b Posted December 8, 2011 Share Posted December 8, 2011 http://img72.imageshack.us/img72/4052/datalog24.pdf My numbers aren't really ideal but I'm going for broke in the spring Link to comment Share on other sites More sharing options...
LosAngelesLGT Posted December 8, 2011 Share Posted December 8, 2011 Sweet! Link to comment Share on other sites More sharing options...
WhiskeyTango Posted December 8, 2011 Share Posted December 8, 2011 wow...in for graph I bet its slow. Link to comment Share on other sites More sharing options...
SCASEYS Posted December 8, 2011 Share Posted December 8, 2011 nice, I also have the Avo450 getting 15mpg on 93 w/ 850 injectors I donated to LegacyGT.com which allows me to have this nifty signature. If anything SCASEYS posts ever becomes a sticky i'm gonna light this whole place on fire Link to comment Share on other sites More sharing options...
joeleodee Posted December 18, 2011 Author Share Posted December 18, 2011 Couple updates. The turbo won't boost past spring pressure because there's a pig sqealing under the hood. Tomorrow, I'm hoping to get out there and track it down. The tuner says it sounds alot like a coupler for the piping. Hopefully it's just that. Maf scaling was erratic so that had to be completely rescaled. Some adjustments in the advanced timing brought the surge even more under control so it's even less noticeable. Boost is all over the place but not over 15psi because of the leak. We are remaining completely knock free, though. We've switched over to open source tuning since windows 7 was causing erratic readings with the v1 streettuner software. We might go back to the streettuner eventually. Hopefully I'll have some logs to post pretty soon. No point in posting anything now. Link to comment Share on other sites More sharing options...
BDII Posted December 18, 2011 Share Posted December 18, 2011 Need forum help? Private Message legGTLT Link to comment Share on other sites More sharing options...
sumfoo1 Posted December 18, 2011 Share Posted December 18, 2011 i hope you kept the old maf scale, if you had a boost leak and re-scaled it, it's gonna be all funky when you go back the other way. Link to comment Share on other sites More sharing options...
Spec B Posted December 18, 2011 Share Posted December 18, 2011 Could be an up pipe leak.. Link to comment Share on other sites More sharing options...
joeleodee Posted December 19, 2011 Author Share Posted December 19, 2011 i hope you kept the old maf scale, if you had a boost leak and re-scaled it, it's gonna be all funky when you go back the other way. Yes, all previously accurate scales have been saved. Could be an up pipe leak.. That was my first thought, but before I start changing gaskets, especially the uppipe gasket, I'm going to have it smoke tested. I've had to change that before and that's a bit time consuming. Between the stg 2 logs and now, too much has changed to guess where the leak might be. A visual inspection of the couplers revealed nothing to make me think that is the culprit. I'll probably not get to anything until after christmas, though. Link to comment Share on other sites More sharing options...
technicalgarage Posted December 22, 2011 Share Posted December 22, 2011 I've heard noises similar to what you describe on a wrx when the Y-pipe to the IC was leaking. Check your charge piping / IC hoses. Link to comment Share on other sites More sharing options...
BDII Posted December 23, 2011 Share Posted December 23, 2011 Need forum help? Private Message legGTLT Link to comment Share on other sites More sharing options...
joeleodee Posted December 24, 2011 Author Share Posted December 24, 2011 Took some logs last night just to make sure we're still running safe. Yes, it is running knock free and nothing to be too concerned over. However, as stated before, the potential of this setup is severely stymied by that gremlin boost leak. It's definitely moving more air at less psi than the stg2 logs show, but it's boosting way late and only peaking right around spring pressure. The logs look very similar to when I had a boost leak in the uppipe gasket before, only with a larger turbo so everything is shifted to the right. When I fixed that leak, I still had to install the ebcs to get it to hit target boost so it's hard to say how much that made a difference. The gasket did look like it had a few orifices where it was leaking, though. Hopefully, I can get it smoke tested next week. Only other change from the OP is I'm rocking the stock mufflers for the winter. Hopefully, we can get some results and see how restrictive the mufflers really are to a larger turbo with some before and after numbers come springtime. Link to comment Share on other sites More sharing options...
joeleodee Posted January 4, 2012 Author Share Posted January 4, 2012 Taking it in today to be pressurized. If we don't find a boost leak, the only thing left would be the ebcs or the wastegate actuator. It's possible one of those two parts has gone bad. The actuator has been sitting unused for 2 and a half years and apparently, that ebcs can just go haywire sometimes. If it's neither of those.....then I don't know. Updates coming. Link to comment Share on other sites More sharing options...
joeleodee Posted January 4, 2012 Author Share Posted January 4, 2012 apparently, that ebcs can just go haywire sometimes. . And that's exactly what happened. First we blew compressed air through to the actuator to make sure that was operating properly and that looked okay. Next, we pressurized it, and the BOV was acting a little bit squirrly. To eliminate that possibility, we put the stock bpv back on, but that didn't change a thing as far as the logs go. On to the ebcs, we checked to make sure it was getting power and reacting to changes, and it was, but we were not convinced. He had a manual boost controller sitting in an Evo in the shop so we stripped that off and slapped it on my car. After a few logs with no tuning and no adjustment, we were in the 16.5 psi range. Remember we were struggling to hit 15 before. A couple turns and we were in the 17.5 range...again with no tuning. A couple more turns and it was over 18psi and that's where we stopped because it was showing a little bit of knock. Because it's not tuned yet for the load ranges that 18psi is giving, I backed the MBC down to about 16psi until my new setup comes in. My tuner recommends a hybrid boost control setup so that's on order, but for now I get to leave the MBC on there. Link to comment Share on other sites More sharing options...
BDII Posted January 7, 2012 Share Posted January 7, 2012 you should tell that ebcs to eat a **** Need forum help? Private Message legGTLT Link to comment Share on other sites More sharing options...
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