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Kind of a random question, but what makes the Subaru boxer "grumble". The newest ones don't seem to have it anymore but I can hear if it's a Subaru made in the past 30 years coming down the road. Is it the unequal length headers + firing pattern? I've noticed that some aftermarket exhausts accentuate it while others completely eliminate it. What's the deal?
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Jun 22, 2011 21:17
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| # ? May 14, 2024 05:14 |
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Unequal length headers, cylinder head port placement, boxer engine, some crazy Japanese engineer deciding to inject character into the car
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Jun 22, 2011 21:21
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So just a few days ago I started having issues with my 06 Impreza Outback Sport starting. At first it was only once or twice, car wouldn't even try turning, nothing. Then yesterday it was much more frequent. After a long drive, the engine started near-stalling whenever it was idling. Then I got a 'check engine' light. Then it started shuddering when accelerating, from any speed, and also while idling. Ran a diagnostic on it and I have a misfire in #1 cylinder. Checked the connections to the ignition coil and to the plugs, looked alright, put them back in. Started the engine up afterwards and the 'check engine' light was gone and the engine was idling much better, though it still sounded a little off. Today I start it and it's running rough again and the 'check engine' light is back. I'm going to check the cables tonight to see if there is any arcing through the insulation or something. I'm assuming it's either the spark plug, ignition coil, or cable running between the two. Anything else worth checking? I just had 60,000 mi maint. done about 2,000 mile ago, so it's likely the dealer upset something. As far as the car not even starting now, I have some success when I play with the clutch. I took a look at the clutch switch, gave it a little tap and jiggled some of the wires around and the engine started regularly, though I still don't trust it. Should I adjust the distance on the switch? The spring loaded push rod that comes out of the switch is fully extended and not in contact with the clutch pedal when I have the clutch depressed for starting. Is the switch a common part to go bad, or might the problem be somewhere else? How bad would it be to drive my car 80 miles with a misfiring cylinder? I don't want to blow out a bearing or something due to it being unbalanced now.
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Jun 22, 2011 23:53
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Fish Shalami posted:You checked your belts to make sure they are properly tight yes?
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Jun 22, 2011 23:56
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Amandyke posted:You checked your belts to make sure they are properly tight yes? I can't do a proper check with the 22 lbs or whatever to measure the deflection, but I can feel them and there isn't much play in them and they don't look worn. I don't think they are slipping. Shouldn't they have been replaced at 60,000 miles anyways?
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Jun 23, 2011 00:30
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Cat Terrist posted:Unequal length headers, cylinder head port placement, boxer engine, some crazy Japanese engineer deciding to inject character into the car Wouldn't it best be thought of just by considering how the exhaust works? The "Boxer Rumble" is an effect of UEL headers creating a cyclic, but uneven noise? With EL Headers you get a steady, rhythmic exhaust note because the pressure from each cylinder has to travel the exact same distance - so you get a ]-*-*-*-*-> pattern. With UEL headers, while the cylinders themselves fire rhythmically, there is a difference in the actual distance the pressure travels - so you end up with something more like: ]-**-**-> That's a terrible example and I'm sure somewhere someone has done a proper whitepaper writeup about it, but it's the best I could come up with quickly.
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Jun 23, 2011 00:35
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You'd think with subarus whole 'symmetrical' spiel they would make the exhaust system symmetrical as well with symmetrical headers.
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Jun 23, 2011 00:53
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the n/a and twin scroll subarus do have EL headers.
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Jun 23, 2011 02:13
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bull3964 posted:I really don't know if stuff like that will show up on a carfax report. Timing belt change interval is 105k miles. Update: I didn't realize how hard it was to get dealerships to actually relinquish information about their cars. Or maybe the staff member I talked to was just an rear end in a top hat. Turns out the car had been sent off for new heads after the dealership took possession of it, and when I pressed him as to why, I was told that if I was that concerned I should just pass on the car. Harumph. They were also wishy-washy as to the belts, so I'll just go ahead and negotiate that particular service into the price. Hopefully since it's a subaru dealer they can just do it right then and there. The car was, other than that, fantastic. I'd never actually driven a WRX before (just a base impreza) and I couldn't hardly find a thing wrong with it. I did the turning in slow circles at full lock thing and there wasn't any strange feedback, so I assume the rear diff checks out? I didn't really know what I was looking for, so I guess that's a good sign.
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Jun 23, 2011 05:41
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an audible groan posted:Update: I didn't realize how hard it was to get dealerships to actually relinquish information about their cars. Or maybe the staff member I talked to was just an rear end in a top hat. Turns out the car had been sent off for new heads after the dealership took possession of it, and when I pressed him as to why, I was told that if I was that concerned I should just pass on the car. Harumph. They were also wishy-washy as to the belts, so I'll just go ahead and negotiate that particular service into the price. Hopefully since it's a subaru dealer they can just do it right then and there.
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Jun 23, 2011 05:50
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Cat Terrist posted:Still no wet plug / car problem. Actually got a glint of hope now the problem is found If you're feeling ballsy, you should dump water on the sensor and see if it acts up.
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Jun 23, 2011 08:32
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Shaocaholica posted:You'd think with subarus whole 'symmetrical' spiel they would make the exhaust system symmetrical as well with symmetrical headers. And be rid of THE sound? Are you mad?!?! http://www.youtube.com/watch?v=5OzmHnBkIaQ http://www.youtube.com/watch?v=Zn8EKHJsZwI Now say Hail Colin full of grace a dozen times to absolve yourself of such sinful thoughts
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Jun 23, 2011 08:46
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Anyone know where I can find a shop manual or repair manual for a 2006 Impreza Outback Sport?
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Jun 23, 2011 12:57
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an audible groan posted:when I pressed him as to why, I was told that if I was that concerned I should just pass on the car. I'd be tempted to take his advice.
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Jun 23, 2011 14:59
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Cat Terrist posted:And be rid of THE sound? Are you mad?!?! Ok, it's official European Rally fans are retarded. HEY GUYS, lets all stand IN THE ROAD and then we'll JUMP OUT OF THE WAY as the car COMES BARRELING AT US AT HIGH SPEED. The rule for the drivers must be "aim for the fans". Also that amjayes guy has some *fantastic* videos on his youtube page. Right properly done rally footage. edit: And your car squeaks too much CT.
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Jun 23, 2011 16:42
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c355n4 posted:I'd be tempted to take his advice. Looks like I'm going to anyway since my financing fell through. Whoops!
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Jun 23, 2011 19:52
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I've suddenly under less financial burden! My KYB GR-2s have shipped and will be here next week. The car desperately needs it. After I get them installed, I will do a track day.
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Jun 24, 2011 22:38
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Took apart the passenger AVCS system today to check for water damage - confirmed. The tell tale white depoists show we have 100% confirmed the ECU is got no idea why there's a feedback loop and goes into limp home - the ECU it turns out sets the cam timing advance but there's no sensor to confirm it - unlike the STI which has had one rigged in. So it looks like the AVCS goes nuts, the ECU cant understand what is going on and just goes into limp home. But the other thing is that I knwo how to manage the issue so if I detect it, I can reset it until I figure out exactly what damage the water ingress has done and where. Still no idea how the water got there but hey, least we now have answers. FINALLY, only taken three months to figure it out - and we wouldnt have if I hadnt been looking at a different idea and took the plug off to get to something else.
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Jun 25, 2011 12:55
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Cat Terrist posted:Took apart the passenger AVCS system today to check for water damage - confirmed. The tell tale white depoists show we have 100% confirmed the ECU is got no idea why there's a feedback loop and goes into limp home - the ECU it turns out sets the cam timing advance but there's no sensor to confirm it - unlike the STI which has had one rigged in. So it looks like the AVCS goes nuts, the ECU cant understand what is going on and just goes into limp home. That is some crazy poo poo. I hope you find out how the water is/was getting in.
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Jun 25, 2011 13:56
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Me : Hmmmm, wonder what happens if I remove the air emissions pump? :: FLING! :: Me : Not much. What about the brackets? :: FLING!! *CRASH MEOW!* :: Me : Now what about if I remove the rear seat braces? :: FLING BANG! :: Me : Now about that rear seat....... and the glove box...... oh and that rear carpet.... Oh gently caress, I've started havent I? Next I'm going to build the castor mod, put in adjustible camber top plates, strut braces and new bushes, then it wont be enough, I'll change springs and dampers, then I'll put on a front lip spoiler and a rear wing, new Project MU brakes, a R160 based plated diff, exhaust, reflash and then splerge out and get some ridiculous high end suspension and it'll never end! I'm screwed.
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Jun 26, 2011 23:22
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Ugh, I'm thinking about getting a Legacy GT instead of my 9-2x Aero and saving $70 a month on insurance. Part of me wants to do it, but my car has been incredibly reliable. Only time it's left me stranded was because someone hit it or because I did a dumb thing and left the lights on. Cat, don't you already have an STi for racing?
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Jun 26, 2011 23:27
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I was by a local Subaru shop to pick up some parts, and they had a customer's rally GC8 up on the lift. It was gross, full of rally rash and beat to hell, but they were installing Ohlins coilovers that were 14 grand... used. They were gold, with an external reservoir the size of a baby's arm. I've never seen such a thing.
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Jun 27, 2011 00:54
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Wrar posted:Cat, don't you already have an STi for racing? For gravel, yes. But the WRX is such a fun thing on tarmac! Wait nooooooo I'm not going to go down this path....
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Jun 27, 2011 03:26
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Wrar posted:Ugh, I'm thinking about getting a Legacy GT instead of my 9-2x Aero and saving $70 a month on insurance. Avoid the 05's if you can. blargle posted:I was by a local Subaru shop to pick up some parts, and they had a customer's rally GC8 up on the lift. It was gross, full of rally rash and beat to hell, but they were installing Ohlins coilovers that were 14 grand... used. They were gold, with an external reservoir the size of a baby's arm. I've never seen such a thing. That's not what Subarus are supposed to look like 
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Jun 27, 2011 11:34
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I can only afford an 05, whats wrong with them?
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Jun 27, 2011 13:43
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Cat Terrist posted:For gravel, yes. It is the natural path! You cannot fight it.
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Jun 27, 2011 14:33
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Cat Terrist posted:For gravel, yes. Oh you know you want to do it kiddo. Good grip and getting the 6 speed knowing you cant break it, bit of boner material. My mate went to Wakefield today...  drat ramps.
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Jun 27, 2011 15:26
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Slow is Fast posted:Avoid the 05's if you can. Says the guy with an 05 with new pistons and gears.
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Jun 27, 2011 22:56
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Lots of incidents with the 05's blowing motors. I bought an 05, blew the motor in a week, returned it for refund. NM has an 05, he blew his motor. See a pattern here? Guy I know got an 05 for his wife... ding ding ding, blew the motor. The problem was a few things, some say it was the screen in the oil line would get clogged, oil starve the turbo and blow that up. Others say it's the oil pickup. I say it's all that bullshit PLUS Subaru had the bright idea to go "hey you can do 7000 mile oil change intervals, don't worry about it!" When the cars first came out. Later on the updated that to say synthetic only every 3k miles. Jamal probably has better and more accurate insight then I do since he works on these cars for a living where I just participate in the local state club heavily. I know three non-goons who have had to deal with blown up 05's in my state in the past year. After the absolute loving hell I went through with my 05, I wouldn't wish that upon anyone. Which sucks, because it was the perfect car. If you're insistent on getting an 05, I'd do a compression and leak-down and ask to see oil change records to make sure they weren't 7k intervals, then pray to whatever sky wizard it is you believe in that it doesn't blow up once any warranty you get runs out.
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Jun 27, 2011 23:45
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Pardon my ignorance but what do you get with the 2011 STI over the WRX? Is the chassis wider on the STI? Do they have the same suspension (parts interchangeable)? Are there any big ticket items you get with the STI that would be much more expensive to upgrade a WRX to?
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Jun 28, 2011 00:22
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Slow is Fast posted:Others say it's the oil pickup. On LGT.com quite a few 2006+s blow motors too. EQ told me the pistons were actually better on 05-06 than in recent vintages. Shaocaholica posted:Pardon my ignorance but what do you get with the 2011 STI over the WRX? Is the chassis wider on the STI? Do they have the same suspension (parts interchangeable)? Are there any big ticket items you get with the STI that would be much more expensive to upgrade a WRX to? A front diff on a WRX will run a bit over $1000 with maybe $1000ish in labor to install. Do WRXs even get rear LSDs anymore? You get a much better 6-speed box. And that's just some. If you want a stock street car, the WRX is great, but I'd buy a STI for track or autox. nm fucked around with this message at 00:30 on Jun 28, 2011 |
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Jun 28, 2011 00:26
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Shaocaholica posted:Pardon my ignorance but what do you get with the 2011 STI over the WRX? Is the chassis wider on the STI? Do they have the same suspension (parts interchangeable)? Are there any big ticket items you get with the STI that would be much more expensive to upgrade a WRX to? transmission, diffs, hubs, and brakes are all much better on the sti, and it's not easy to swap them over.
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Jun 28, 2011 00:41
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jamal posted:transmission, diffs, hubs, and brakes are all much better on the sti, and it's not easy to swap them over. Are the hubs located wider on the STI or is are they the same width now with the wide body WRX?
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Jun 28, 2011 00:45
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Any high mileage ej25 is a crapshoot, basically. I had my RS for 120k miles but I don't plan on keeping this WRX for more than 80k. Pretty much everyone I know either spun a bearing or broke a ringland eventually especially the stage 2 guys.. latest casualty is a friend's 2006 LGT. Hopefully the fb25 brings good things.
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Jun 28, 2011 00:46
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Shaocaholica posted:Are the hubs located wider on the STI or is are they the same width now with the wide body WRX? they're in the same spot but the uprights, axles, bearings, and struts are different. We just did a 5x114 conversion on a car that already had a 5x100 sti drivetrain and suspension (which is still a bit different that wrx 5x100 stuff). needed to change front uprights/bearings/hubs, brake rotors all around, rear bearings and hubs, and put in different struts. To do the swap on a wrx you would also need to change the rear uprights, and then the wrx axles don't fit in the sti hubs and the sti axles don't fit in a wrx diff. So you have to either get custom axles made or put in an sti rear diff. And then the driveshaft won't bolt up to the diff anymore and the sti prop shaft is a different length. you can either change the flange on the diff or have custom axles made.
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Jun 28, 2011 01:01
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Is the WRX the only car Subaru still makes with a 5-spd? I wish they'd give it a 6-speed already! When I bought my '10 WRX, I almost went with a Mazdaspeed3 instead (because it has a 6-spd and is about the same price. No AWD though).
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Jun 28, 2011 01:04
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blargle posted:Any high mileage ej25 is a crapshoot, basically. I had my RS for 120k miles but I don't plan on keeping this WRX for more than 80k. Pretty much everyone I know either spun a bearing or broke a ringland eventually especially the stage 2 guys.. latest casualty is a friend's 2006 LGT. Hopefully the fb25 brings good things. don't like what I've seen of the n/a FB so far. Hopefully the turbo version is very different. A lot of stuff is taken off the EZ30 which is a good motor but they went to a short rod and long stroke which is bad for top end power and revs. The new cool build to stick a 2.0 crank in a 2.5 block with a 4mm longer rod (although I'm not sold on losing displacement to improve VE and will stick with our 2.6 race motor). jamal fucked around with this message at 04:57 on Jun 28, 2011 |
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Jun 28, 2011 01:05
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Anyone have opinions on Group-N top hats? I'm replacing my sagging '04 WRX suspension with a very mild setup: GR-2s and Mach V (basically Prodrive) springs. If I bought the hats I would only buy the fronts, just can't decide if it's worth an extra $100 for a daily driven, non-aggressive car.
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Jun 28, 2011 02:09
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usually worth it to upgrade tops. I got the whiteline com-c tops over group n. they use harder material plus relocated the mount to add camber and caster.
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Jun 28, 2011 03:02
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| # ? May 14, 2024 05:14 |
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syphon posted:Is the WRX the only car Subaru still makes with a 5-spd? I wish they'd give it a 6-speed already! When I bought my '10 WRX, I almost went with a Mazdaspeed3 instead (because it has a 6-spd and is about the same price. No AWD though). All the na cars still have the 5.
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Jun 28, 2011 04:54
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