Th3Franz Posted September 20, 2015 Author Share Posted September 20, 2015 someone say tittiwop? I just recently threw on the vacuum lines for BCS boost control. I'm using a dual port wastegate actuator so I think I have it hooked up correctly now. I'll shorten them up once it's verified. Notice the TiAL BOV is disconnected. I am using only the EFR BPV atm. I'm running a 75mm KSTech intake. They basically made it special for me but they have done a few of these intakes for rotated setups now. It's a very nice intake. The air filter ducts down into the fender area. The charge pipes were made custom by Rawspeed, a local shop. It's snug but I'm really happy with how the charge pipe runs. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
GEE-OTTO Posted September 23, 2015 Share Posted September 23, 2015 Nice setup and overall project plan. What direction tune wise are you going? How does she sound!?! Link to comment Share on other sites More sharing options...
Th3Franz Posted September 23, 2015 Author Share Posted September 23, 2015 I have an access port running maf for now. Plan is to go speed density. I'm collecting data for the ve table. Car sounds way different. Turbo noise, exhaust note, everything. I am running stock mufflers with nameless cat back so it has a smooth growl to it but no boxer rumble. I may get some 5 in nameless mufflers to open up the sound more. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
KGB Posted October 6, 2015 Share Posted October 6, 2015 Hello Franz, What are the inner diameters (IDs) of the primary and secondary runners in your custom manifold? Nice coating, who made it? Thanks, I am about to start building up a similar setup with the goal of best possible spool for good low end / street response - this is going to be my daily driver (Thinking of full race manifold & UP, but if I can get smaller runners for better low end I'll be interested...) Link to comment Share on other sites More sharing options...
Th3Franz Posted October 7, 2015 Author Share Posted October 7, 2015 I'm not sure on the primaries, but the secondary runners are 1.75" each. The low end is strong and the car isn't even fully tuned yet. TIGWERKS made the exhaust components and used a local (to him) ceramic coater. The coating is nice. I'm installing my 4 port BCS this weekend, so I'll be starting to dial in the boost control. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
KGB Posted October 7, 2015 Share Posted October 7, 2015 Thank you Franz, I am thinking of getting a custom TS & UP done (potentially by Tigwerks as well,) using the smallest possible primary runners - the goal is to optimize for max exhaust gas velocity for quickest possible spool (even at the expense of the top end, if any.) I believe that the EJ25 exhaust ports are something like 1.25" in ID so there is no reason to have larger primaries... I am encouraged that your initial tune indicates good low end, I would be worried with your secondaries being >3mm larger than those by Full Race (theirs are 1.625", with 1.4" primaries) and your longer (than stock) duration GSC S1 cam you might pay a slight spool penalty. (I am contemplating staying with OEM cams for my motor built to get best spool / low end, even if it may cost me a bit on top.) Excited to see that you are using a 4-port BCS - it is true that is has better tuning potential, and specifically better low end? I been discussing this option with a few tuners (I don't know enough about it myself,) but either they don't have experience tuning using 4port or they say it results in "wavy" torque curve. So looking forward to your results. Thanks again for sharing - we all appreciate it! Link to comment Share on other sites More sharing options...
Bbc84 Posted November 15, 2015 Share Posted November 15, 2015 In for the results, I just got my car back with the TS 7163 but still breaking it in Link to comment Share on other sites More sharing options...
Th3Franz Posted November 16, 2015 Author Share Posted November 16, 2015 I am working through a crankcase pressure issue and some oil leaks. Leakdown test showed the bottom end is good. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Cincy05LGT Posted April 24, 2016 Share Posted April 24, 2016 Where's your build thread with suspension setup deets? Link to comment Share on other sites More sharing options...
Th3Franz Posted April 24, 2016 Author Share Posted April 24, 2016 I'm not sure if I have a build thread about the suspension. Rce tarmac 1 coilovers with sway bars, caster bushings, end links. Also the previous engine had problems so next month a closed deck iag block is going in. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Th3Franz Posted May 25, 2016 Author Share Posted May 25, 2016 500 miles so far on the new engine. Car is running well although I need to gain a little more clearance for the twin scroll up-pipe. Dremel will be going to work soon. Looking to tune the car once 1000 miles are on and the oil is switched to synthetic. I registered for a track day on July 8 so the pressure is on to get all the tiny issues sorted! I designed and 3D printed a block off plate for my Tial BOV flange. I'm only using the EFR BPV now. The plastic block off plate is holding pressure so far.. we'll see how it does with 25+ PSI -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Max Capacity Posted May 30, 2016 Share Posted May 30, 2016 IMO 500 miles, you should be good for a oil change and a tune. Then another oil change before your track day. 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...
Th3Franz Posted May 4, 2017 Author Share Posted May 4, 2017 Been awhile since I did an update. Car is still running well. The turbine housing wanted to separate from the core at the track day, so I bought some drilled bolts and safety wired them. The 3D printed block off deformed from heat before the track day, so we replaced that section with a blank pipe and no flange. The built-in EFR recirc valve works awesome. I got a new AEM MAP sensor (omnipower died), so I'm wiring that up soon and am looking at speed density tuning options. May have a local tuner help me with the speed density part. Car made around 380whp on a mustang dyno 93 octane with 19-20 PSI and conservative timing. Definitely more in it. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
fahr_side Posted May 4, 2017 Share Posted May 4, 2017 I think that built-in BPV has a lot to do with the way this turbo does so well in boost recovery post-shift. I never could figure out why Subaru always used to let the charge air heat the intercooler just to vent it back to the intake. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
Bbc84 Posted May 4, 2017 Share Posted May 4, 2017 Been awhile since I did an update. Car is still running well. The turbine housing wanted to separate from the core at the track day, so I bought some drilled bolts and safety wired them. The 3D printed block off deformed from heat before the track day, so we replaced that section with a blank pipe and no flange. The built-in EFR recirc valve works awesome. I got a new AEM MAP sensor (omnipower died), so I'm wiring that up soon and am looking at speed density tuning options. May have a local tuner help me with the speed density part. Car made around 380whp on a mustang dyno 93 octane with 19-20 PSI and conservative timing. Definitely more in it. Did you upgrade the spring in the bulit in recirc valve? I still havent had my Full Race 7163TS setup all sorted out yet. Before storing the car away for winter it put down 355/378tq on dynojet, tuner had to dial it down due to fuel issues I think ended up at ~335/370 around 15psi. Besides fuel issues multiple tuners had issues with car holding higher boost. So I think we decided that turbo needs a stiffer spring for the BPV, and upgrade to dual port IWG. Link to comment Share on other sites More sharing options...
fahr_side Posted May 5, 2017 Share Posted May 5, 2017 Did you get the stiffer wastegate actuator spring? Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
xtea Posted May 5, 2017 Share Posted May 5, 2017 Im using external bpv, awesome boost recovey on 6758. I think its more the gamma ti wheel. Link to comment Share on other sites More sharing options...
Th3Franz Posted May 5, 2017 Author Share Posted May 5, 2017 I have the stiffer bpv spring with the metal cover. I'm running a 1 bar iwg spring with a 4 port solenoid. I think I need to increase the preload some more to hold boost a little better up top when it's hot out, even with the dual port iwg actuator Xtea are you fmic or tmic? -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
xtea Posted May 5, 2017 Share Posted May 5, 2017 TMIC Baby! I'm not aiming for 500+ hp though. I asked about the integrated bpv on the nasioc efr thread before purchasing my IRL comp housing turbo. I was curious what people thought about it being a performance add vs value/marketing add. The consensus there was it was a value/market add and also benefited a clean engine bay. Most race cars don't even use bpvs I guess. I don't think the compressor fins are designed to catch air like the turbine fins which is something I didn't think about when I posed the question. Also if it had an appreciable effect I would think that it would mess with afr and requested psi mid shift. https://forums.nasioc.com/forums/showthread.php?t=2394879&page=92 After that recent thread that came up about doseing (turbo flutter), and knowing that IRL cars didn't run a bpv with these turbos, I'm contemplating having a ricer night and running without the bpv for shi1s and giggles. Probably a bad idea though. Link to comment Share on other sites More sharing options...
Th3Franz Posted May 5, 2017 Author Share Posted May 5, 2017 No BPV will cause surge and will shorten the life of the turbo when running high boost pressures. Race cars probably replace the cores at regular intervals (like engines lol). I have not been able to find a source of rebuild parts for Borg Warner EFR turbos. There are no seal or bearing kits so if it has a problem, the entire supercore has to be replaced. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
Bbc84 Posted May 8, 2017 Share Posted May 8, 2017 Did you get the stiffer wastegate actuator spring? Yea I am using the high boost IWG canister. but I did not upgrade the recirc spring/plate Link to comment Share on other sites More sharing options...
fahr_side Posted May 9, 2017 Share Posted May 9, 2017 Yea I am using the high boost IWG canister. but I did not upgrade the recirc spring/plate Turbosmart have a really nice all-metal replacement BPV kit. Works really well. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
Th3Franz Posted April 7, 2018 Author Share Posted April 7, 2018 Posting an update. Using the built-in bpv at sonoma raceway last fall was great. Very pleased with the boost recovery. Noticed oil in the turbine housing because there is a little bit of oil smoke in the exhaust at idle. I'm going to pull the turbo and test the seals but also change to a larger pipe fitting for the oil drain. Other than that it's been a nice setup. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
bermo Posted April 7, 2018 Share Posted April 7, 2018 Posting an update. Using the built-in bpv at sonoma raceway last fall was great. Very pleased with the boost recovery. Noticed oil in the turbine housing because there is a little bit of oil smoke in the exhaust at idle. I'm going to pull the turbo and test the seals but also change to a larger pipe fitting for the oil drain. Other than that it's been a nice setup. Was size of restrictor to you have for the oil feed? My car is in the shop getting an EWG set-up installed and my guy hunted down an oil leak I've had since the build, and he thinks the turbo is getting too much oil but the banjo w/orifice that came with it ? I mentioned going bigger on the drain but he wants to make sure the feed isn't too large. Link to comment Share on other sites More sharing options...
Th3Franz Posted April 8, 2018 Author Share Posted April 8, 2018 The EFR has a built in restrictor so should be all good there. I was reading more on the drain hose size and a 10AN orifice is kind of small and they recommend at least 9/16 -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
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