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Subaru Impreza Engine Problems

241 messages,  Last post on Nov 26, 2009 at 5:37 PM

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What is this discussion about? Subaru Impreza, Engine, Sedan, Wagon

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#5 of 241 Re: RPM's @ 60 [dop50] by claudius753 Apr 18, 2006 (12:50 pm)
Replying to: dop50 (Apr 18, 2006 12:01 pm) Ah, thanks. I was just curious, doing some general research. I read an Australian review that said 100km/h was at 2800, which seemed too high for relaxed driving.   About 2500 for 60, or 3000 for 73-75 is about what my current car turns, and I wouldn't want anything much higher. It seems that manual transmissions turn a lot higher in top gear than autos. Replies to this message: wyoforester (Apr 19, 2006 7:44 am)
#6 of 241 Re: RPM's @ 60 [claudius753] by wyoforester Apr 19, 2006 (7:44 am)
Replying to: claudius753 (Apr 18, 2006 12:50 pm) I dug up an old WRX brochure that had a reprint of a Car & Driver review of a 2002 WRX. Mph/1000 rpm in each gear is as follows: 1st=5.3, 2nd=9.5, 3rd=13.5, 4th=18.9, 5th=24.9 so dop50 and I are in the ball park. This was for an American spec car. Re: the '06 Australian WRXs(100km/h =60mp), perhaps they have different gear ratios than my US model '06 TR?
#7 of 241 Used WRX engine running rough by km24 Apr 27, 2006 (11:01 am)
Hi   I have test driven some 2004 automatic trans WRX With 15-30K on the clock and although they look great the engine seem to be louder and rougher than a new one. Are these cars suppose to get smoother or rougher with age.   Khyle Replies to this message: rsholland (Apr 27, 2006 11:14 am) km24 (Apr 27, 2006 11:47 am) rsholland (Apr 27, 2006 12:46 pm) ateixeira (Apr 28, 2006 9:06 am)
#8 of 241 Re: Used WRX engine running rough [km24] by rsholland Apr 27, 2006 (11:14 am)
Replying to: km24 (Apr 27, 2006 11:01 am) The one you tested was a 2.0. The new ones are 2.5s. Sort of comparing apples to oranges...   Bob Replies to this message: km24 (Apr 27, 2006 11:47 am) rsholland (Apr 27, 2006 12:46 pm) ateixeira (Apr 28, 2006 9:06 am)
#9 of 241 Re: Used WRX engine running rough [rsholland] by km24 Apr 27, 2006 (11:47 am)
Replying to: rsholland (Apr 27, 2006 11:14 am) Hi   They were all 2005 wrx's some with a few hundred miles and the others with 15-30k mile. One had been owned by a an older man who babied his car but the engine still felt rough and this car was at a subaru dealer. The one's with 15-30 does not seem like alot miles but the cars ran like an old car.   Khyle Replies to this message: rsholland (Apr 27, 2006 12:46 pm) ateixeira (Apr 28, 2006 9:06 am)
#10 of 241 Re: Used WRX engine running rough [km24] by rsholland Apr 27, 2006 (12:46 pm)
Replying to: km24 (Apr 27, 2006 11:47 am) It's hard to say. I haven't heard of any rough older WRXs per say. Having said that, keep in mind that many of these vehicles were bought by younger guys for their high performance. So my guess is that many used WRXs out there may have lived a hard life, or at least a harder life than a non-performance Subaru.   Bob
#11 of 241 Re: Used WRX engine running rough [km24] by ateixeira Apr 28, 2006 (9:06 am)
Replying to: km24 (Apr 27, 2006 11:47 am) A turbo actually smoothes out the boxer slightly, maybe that one had a bad engine mount.   -juice
#12 of 241 RPM at 80MPH by path4 Jun 05, 2006 (1:21 pm)
Hi, Can anybody tell me what is the RPM when driving at 80mph? This is my crusing speed as I have a long commute. I just hope it is not too noisey. Thanks!
#13 of 241 path4 by silversolara Jun 06, 2006 (7:21 am)
i have an hour-long commute also. 5th gear and 80 mph - not too noisy by my standards, as long as the CD player is running - loose approximation is 3100 rpm. my wrx is bone-stock.   hope this helps!
#14 of 241 Some Quick Calcs... by ed_scott0013 Jun 07, 2006 (11:25 am)
I made a little RPM calculator spreadsheet in Excel a while back (I was bored and had some car mags to compare to), and after searching for the 5MT gear ratios, I came up with around 3143 RPM at 80 MPH (approx 128.7 KM/H) based on the following specs:   Wheel/Tire -> 17" Wheel with 215/45R17 Tire Fifth Gear -> 0.738:1 Final Drive -> 3.9:1   But, obviously, real life doesn't necessarily reflect the calculations, so on the safe side I'd get more first-hand numbers.   Edit: Wow... maybe the spreadsheet is accuate after all.

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