3.0R-AUS Posted November 26, 2006 Share Posted November 26, 2006 I've heard that Boxer engines don't give their full performance until they've done quite a few miles. I've got a 3-litre Liberty (Legacy to all non-Aussies) that's up to 7000km (4400 miles) and standing-start acceleration doesn't seem as quick as it should be, looking at the performance figures in the magazines. In particular, acceleration up to 60km/h (40mph) seems very sedate... Link to comment Share on other sites More sharing options...
Garandman Posted November 26, 2006 Share Posted November 26, 2006 5EAT or manual? If it's a 5EAT try putting it in sport mode but letting the trans shift for itself. If you PM me I can send you a link with the HP and torque #'s from the TDC dyno. Who Dares Wins スバル Link to comment Share on other sites More sharing options...
DukeTrout Posted November 27, 2006 Share Posted November 27, 2006 3.0R. Needs a twin scroll turbo. Ich bin echt viel netter, wenn ich nuechtern bin. Echt! Link to comment Share on other sites More sharing options...
automaticsti Posted November 27, 2006 Share Posted November 27, 2006 3.0R. Needs a twin scroll turbo. Dont we all Link to comment Share on other sites More sharing options...
SLegacy99 Posted November 27, 2006 Share Posted November 27, 2006 You should be good once your break in period is over. However, those horizontals can surprise ya. Link to comment Share on other sites More sharing options...
MilesA Posted November 27, 2006 Share Posted November 27, 2006 The 3.0 6-cyl develops most of its power up high in the RPM band. If you want rapid acceleration, you will have to rev it out. Otherwise, it will feel soft. Also, if you have the auto trans, the car is going to feel sluggish on standing starts in comparison with what a manual trans is capable of. Midrange power should be similar for both types of trans (e.g. overtaking on the highway). It's true Subaru engines seem "tight" from the factory and supposedly take 10K kilometers or so to reach their best power. The difference is probably not going to be dramatic, though, just noticeable. Link to comment Share on other sites More sharing options...
Fantastipotamus Posted November 27, 2006 Share Posted November 27, 2006 It should be noted that, from what I've seen, the 0-60mph numbers (or 0-100kph) are usually done with an AWD launch. The STi, for example, is listed as a hair over 5s, (vs. 4.6 or so listed by the Subaru brochures), but in order to get that, you're going to have to sacrifice some clutch life. Link to comment Share on other sites More sharing options...
3.0R-AUS Posted November 28, 2006 Author Share Posted November 28, 2006 The 3.0 6-cyl develops most of its power up high in the RPM band. If you want rapid acceleration, you will have to rev it out. Otherwise, it will feel soft. Also, if you have the auto trans, the car is going to feel sluggish on standing starts in comparison with what a manual trans is capable of. Midrange power should be similar for both types of trans (e.g. overtaking on the highway). It's true Subaru engines seem "tight" from the factory and supposedly take 10K kilometers or so to reach their best power. The difference is probably not going to be dramatic, though, just noticeable. Thanks to all who replied for the info. This seems to confirm what I'd heard that they are tight from the factory. The 6 cylinder engine has a fantastic exhaust note but a little more low-down torque would make it perfect. Link to comment Share on other sites More sharing options...
LittleBlueGT Posted November 28, 2006 Share Posted November 28, 2006 3.0R. Needs a twin scroll turbo. I think block might be to long for normal turbo configurations. Needs 1 turbo per cylinder bank. Full tune of 68HTA, KSTech 73 MAF, Racer X FMIC and ID1000s................by the DataLog Mafia!!! Link to comment Share on other sites More sharing options...
red beast Posted November 28, 2006 Share Posted November 28, 2006 if you do stop and go traffic try resetting your ecu Link to comment Share on other sites More sharing options...
IwannaSportSedan Posted November 28, 2006 Share Posted November 28, 2006 For engines that need more help just off idle, supercharging usually helps more. Turbocharging comes on later, so tends to supplement mid-range and/or top end. It would be interesting to bolt a recently announced rotrex two-speed supercharger to an H6. Cobb has already done it with a regular rotrex unit... Link to comment Share on other sites More sharing options...
3.0R-AUS Posted November 28, 2006 Author Share Posted November 28, 2006 if you do stop and go traffic try resetting your ecu Why would resetting the ECU help, and how do I do it? Sounds like a trip to the dealer... Link to comment Share on other sites More sharing options...
DukeTrout Posted November 28, 2006 Share Posted November 28, 2006 I think block might be to long for normal turbo configurations. Needs 1 turbo per cylinder bank. Somebody better tell PDX Tuning and the other tuners out there that are doing exactly that. That said, if the OP is looking for more torque down low, then a supercharger might be more the ticket. Ich bin echt viel netter, wenn ich nuechtern bin. Echt! Link to comment Share on other sites More sharing options...
darcas Posted November 28, 2006 Share Posted November 28, 2006 Why would resetting the ECU help, and how do I do it? Sounds like a trip to the dealer... ECU reset, un hook your battery for 20 minutes and hook it back up... Link to comment Share on other sites More sharing options...
red beast Posted November 29, 2006 Share Posted November 29, 2006 ECU reset, unhook your battery, press on brake for 10 seconds and hook it back up... fixed you will lose the radio presets. it, basically, resets your temporary memory stored driving habits. Link to comment Share on other sites More sharing options...
darcas Posted December 1, 2006 Share Posted December 1, 2006 fixed you will lose the radio presets. it, basically, resets your temporary memory stored driving habits. Yes the bad habits like no signal, no check blind spot, speeding etc, these are not erased. Link to comment Share on other sites More sharing options...
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