Edmunds dealer partner, Bayway Leasing, is now offering transparent lease deals via these forums. Click here to see the latest vehicles!
2010 Subaru Legacy 3.6 R
This discussion has been closed.
Popular New Cars
Popular Used Sedans
Popular Used SUVs
Popular Used Pickup Trucks
Popular Used Hatchbacks
Popular Used Minivans
Popular Used Coupes
Popular Used Wagons
Comments
-mike
Subaru Guru and Track Instructor
Definitely do not fiddle with the idle.
-mike
That happened to a Subaru Crew member when they did their intake.
Look closely, even disassemble and reassemble the whole intake, I bet that's it.
Sort of obvious.
C'mon y'all, get with it.
John
A second shorter than the charger hemi. And the HEMI and infiniti don't have grip like the Legacy.
The somewhat lighter 3.6R Legacy is a bit faster - I think I recall seeing 6.5 seconds in a Road & Track article. I would also guess that the 2.5 turbo Legacy with the 6MT would be a bit faster still. But 6.5 seconds is not bad...
That's quick for such a large sedan.
I recently shop'd for an awd car to replace my Volvo XC70, and I ended up with a G37x.
We looked at a bunch of cars, and narrowed our choices to Subaru Legacy 3.6, G37x, and XC60. the G won out in terms of its value / price ratio. for what it doesn't have, the Subaru is too expensive.
Tough call. Spend a bit more, get the nicer interior and the Keep-up-with-the-Joneses badge.
Or get an even better value in the Soob.
I can imagine going either way with that choice, but honestly I think I'd get a manual Legacy GT over both.
One of the changes from the 3.0R to the 3.6R, I believe, is a new automatic transmission including both gearbox and torque converter. Even with the same overall gear reductions, efficiency could be different AND the 3.6 has better low end torque which if utilized optimally by the trans would improve efficiency. Another factor is different tires which alone sometimes adds (or reduces) mpg by as much as 1 or 2 mpg. Perhaps someone has compared the Bridgestones with the Continentals on TireRack's ratings?
A (non-standard) 225/55R17 tire would give (777/806.4) 0.96569724 of the 2068.8 engine speed at 60MPH, or about 1997.83 revs per mile at 60 MPH.
Contrast the above with 2010 Toyota Camry XLE, which has P215/60/16 tires and has the following gear ratios:
1: 3.300; 2: 1.900; 3: 1.420; 4: 1.00; 5: 0.713; 6: 0.608
Camry XLE V6 Final Drive Ratio is 3.685. Overall XLE ratios are 1: 12.1605; 2: 7.0015 3: 5.2327; 4: 3.685; 5: 2.627405; 6: 2.25048
At 795 tire revs per mile, the overall Camry V6 XLE engine RPM at 60 MPH, per gear, is: 1: 9667.5975; 2: 5566.19; 3: 4160.00; 4: 2929.75; 5: 2088.787; 6: 1789.13
Comparing the revs per mile for the Subaru Legacy 3.6r to the Camry V6 XLE 3.5 shows this, Theoretical first, then road speed at 3000 RPM:
Road Speed
Subaru Camry at 3000 RPM
1st 8781.26 9667.60 20.5 vs. 18.6
2nd 5616.04 5566.19 32 vs. 32
3rd 3645.59 4160.00 49 vs. 43
4th 2480.58 2929.75 73 vs. 61
5th 2068.80 2088.79 87 vs. 86
6th 1789.13 N/A & 101
Interpretation: First gear in the Camry is lower than in the Subaru, probably helping the Camry zero to sixty times with a more rapid launch. The Subaru engine runs about nine percent slower in first gear than does the Camry. Second gears are quite close. The Subaru engine runs slower in third gear. The difference of the wider first-to-second ratios of the Camry and Subaru is large. The Subaru second gear engine RPM is 63 percent of the first gear RPM. The Camry second gear engine RPM is 58 percent of its first gear RPM. Thus, the Camry engine not only runs slight slower in second gear than the Subaru (5566 versus 5616), it runs even slower as a percentage of the Camry’s engine RPM in first gear. The driver perception will be that of a greater drop in engine RPM for the Camry when going from first to second gear.
The Camry and Subaru fifth gears are similar, where the Camry engine RPM is just under one percent higher. The greatest difference is in the Camry sixth gear, which acts as a true overdrive by lowering engine RPM about 13.4 percent, relative to the Subaru. Therein likely lies much of the Camry’s better highway fuel economy rating with the greater drag of the Subaru’s all wheel drive likely accounting for most of the remaining difference. The Subaru automatic transmission lacks a sixth gear and the Legacy 3.6R would benefit from having it. The Camry engine speed is 14 percent lower at 60MPH and the car uses 11 percent less fuel. Considering the fuel economy negatives of all wheel drive and higher top-gear engine RPM, the Subaru engine would appear to have high fuel efficiency.
It looks like the difference is in the tire size. The standard tire is a 225/60-17, aspect ratio 60 not 50. This gives revs per mile of 730. RPMs @ 60 = 1878, much more comfortable.
Regards