bmx045 Posted November 23, 2010 Share Posted November 23, 2010 Has anyone upgraded the T.C. in their 5EAT? I have an '08 LGT 5EAT and wondering what a factory replacement and/or upgrade would be.... Link to comment Share on other sites More sharing options...
KyLegacy 2.5GT Posted November 23, 2010 Share Posted November 23, 2010 The only upgraded torque converter that I know of is the IPT one. Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted November 23, 2010 Share Posted November 23, 2010 Any competent performance transmission shop can cut it open, increase the stall rpm, etc. What are you trying to accomplish? [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
underground000 Posted November 27, 2010 Share Posted November 27, 2010 more powaa from torque multiplication!!! 5eat downshift rev match:) Powder coated wheels: completed:) Link to comment Share on other sites More sharing options...
vduber Posted December 9, 2010 Share Posted December 9, 2010 i want a 6k stall Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted December 10, 2010 Share Posted December 10, 2010 That would get you down the 1/4 mile quickly! [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
thraxx Posted September 5, 2011 Share Posted September 5, 2011 Level Ten Torque Converters, they have everything to keep your transmissions up and running. http://www.levelten.com/subaru_upgrades_and_performance_transmissions_s/47.htm Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted September 5, 2011 Share Posted September 5, 2011 ^^^ There are a good number of online review that would disagree with the "up and running" part. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
blklgt Posted March 18, 2012 Share Posted March 18, 2012 Would a upgraded tc be needed for 400whp? along w the hex f1 one mod of course? Link to comment Share on other sites More sharing options...
blklgt Posted March 18, 2012 Share Posted March 18, 2012 also could you increase line pressure to prevent slip? Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted March 18, 2012 Share Posted March 18, 2012 Would a upgraded tc be needed for 400whp? along w the hex f1 one mod of course? No TC modification needed. Think about it this way: it comes upgraded from the factory. also could you increase line pressure to prevent slip? F1 does this, but the converter will still stall and slip the same as stock. TC lockup will be stronger with the F1. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
blklgt Posted March 19, 2012 Share Posted March 19, 2012 Sweet. I do have slightly hard shift from 2nd-3rd sometimes under light acceleration.I am in need of a flush but was holding out untill the f1. Should I address this now our wait to see if the f1 clears it up. Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted March 19, 2012 Share Posted March 19, 2012 Sweet. I do have slightly hard shift from 2nd-3rd sometimes under light acceleration.I am in need of a flush but was holding out untill the f1. Should I address this now our wait to see if the f1 clears it up. F1 won't clear it up, might make it clunk harder. It is important to have the 5eat in alright shape before installing the F1. If it was my car, I would do a safe flush that only uses fresh fluid, and does not use high pressure. It's not fun to try to get this information from a shop, but I've seen several flush machines ruin old transmissions. But it's ok, the same shop can replace the transmission for $200 off After that, I would do a TCU full reset. If it's still doing the clunk after that, then regardless of whether you upgrade the VB or not, your trans will still not be terribly far from a rebuild or replacement. Fact is the 5eat clutch packs are wear parts, like a clutch or brakes, they eventually need to be replaced after normal use. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
stikiller Posted May 3, 2016 Share Posted May 3, 2016 Subaru of America has a update to the tcu that is supposed to take care of that 2nd to 3rd hard shift. But you have to pay for it. Link to comment Share on other sites More sharing options...
YourConfused Posted May 4, 2016 Share Posted May 4, 2016 Subaru of America has a update to the tcu that is supposed to take care of that 2nd to 3rd hard shift. But you have to pay for it. How much $? Link to comment Share on other sites More sharing options...
stikiller Posted May 4, 2016 Share Posted May 4, 2016 55$ Link to comment Share on other sites More sharing options...
Kevberd Posted May 16, 2016 Share Posted May 16, 2016 To anyone having torque converter issues or had one replaced. What were your original problems? 09 3.0r 5eat 125k Besides the trans always wanting to stay or get in 5th gear, I have a shutter when accelerating. Around 1800-3600rpms the trans seems to shutter like it wants to go for 5th but knows it should be going for 3rd and goes, duhduhduhduh, then continues to the appropriate gear. Thanks! Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Perscitus Posted May 16, 2016 Share Posted May 16, 2016 First try to reset your TCU and consider updating the TCU CALID to the latest if not already there. Since you're local I can help you do that if you're interested for a symbolic fee (if you choose to skip the dealership). Has your 5EAT ever been flushed or drain-n-filled? If yes, how often/when last? Do you have a transmission cooler installed? Link to comment Share on other sites More sharing options...
762x39 Posted May 16, 2016 Share Posted May 16, 2016 I have also been thinking about TQ converters lately. I just had my car Dyno tuned for a VF52 and supporting mods including the HexMods F1 VB Mod. Now If I accelerate aggressively, or apply even a trivial amount of brake torque, my car will bounce off the limiter before it will shift. I'm wondering if this can be fixed with the tune itself. But like Dave said, The factory Converter is pretty robust to begin with. I think I read somewhere that the factory stall on the 5EAT is about 3500. While I have never launched at this RPM because I like my car better when its drivable, I have stood on the brakes and wound the RPM's up to about 350o and then let off out of curiosity. The car tried to stall out but didn't. Link to comment Share on other sites More sharing options...
Kevberd Posted May 16, 2016 Share Posted May 16, 2016 First try to reset your TCU and consider updating the TCU CALID to the latest if not already there. Since you're local I can help you do that if you're interested for a symbolic fee (if you choose to skip the dealership). Has your 5EAT ever been flushed or drain-n-filled? If yes, how often/when last? Do you have a transmission cooler installed? I have no idea if it's ever been updated. 2nd owner at 65k. Sadly since owned if only replaced trans filter once and drained pan twice with adding. No aftermarket cooler. Link to comment Share on other sites More sharing options...
whitrzac Posted May 16, 2016 Share Posted May 16, 2016 I have also been thinking about TQ converters lately. I just had my car Dyno tuned for a VF52 and supporting mods including the HexMods F1 VB Mod. Now If I accelerate aggressively, or apply even a trivial amount of brake torque, my car will bounce off the limiter before it will shift. I'm wondering if this can be fixed with the tune itself. But like Dave said, The factory Converter is pretty robust to begin with. I think I read somewhere that the factory stall on the 5EAT is about 3500. While I have never launched at this RPM because I like my car better when its drivable, I have stood on the brakes and wound the RPM's up to about 350o and then let off out of curiosity. The car tried to stall out but didn't. Originally Posted by ClimberD@HexMods No one has ever been able to Tune the TCU. Best I have come across is ThrottleHappy from Australia (a gifted tuner) having some proprietary access to ECU tables that further influence the behavior of the TCU. I would ask him, tell him I sent you. But that 1-2 shift is a different issue. It's common, and the solution is a couple different approaches through any good ECU tuner. 1) Raise redline, tune the new ROM range. 2) Close up the numerical RPM gap between fuel cut and fuel resume. 3) Scale up requested torque cells and scale down throttle position cells to compensate so that accelerator pedal angle and throttle angle keep a similar relationship between eachother. 4) Cut boost considerably at 100+rpm before redline. This is a really great trick, surprised more tuners aren't doing it. This will also save your transmission a lot of wear. Cut target boost and WGDC above 6400ish rpm to 0. I haven't had this issue since then. Link to comment Share on other sites More sharing options...
Perscitus Posted May 16, 2016 Share Posted May 16, 2016 All the latest 5EAT and CVT TCU reflashes for 2005+ Legacies. Link to comment Share on other sites More sharing options...
JMLegacy Posted June 5, 2017 Share Posted June 5, 2017 So... any documentation online on how to modify these? Being in another country kinda sucks Link to comment Share on other sites More sharing options...
stikiller Posted December 25, 2017 Share Posted December 25, 2017 Ive sent my torque converter to ipt for high stall mod 4300 rpm. I hope i like it. It is matched to my tq curve. The stock stall for an 05 lgt is 2800 rpm. Link to comment Share on other sites More sharing options...
robburns201 Posted December 26, 2017 Share Posted December 26, 2017 Ive sent my torque converter to ipt for high stall mod 4300 rpm. I hope i like it. It is matched to my tq curve. The stock stall for an 05 lgt is 2800 rpm. would love to hear how this turns out! Link to comment Share on other sites More sharing options...
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