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Old 06-15-2020, 03:43 PM   #1 (permalink)
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2011 Manual Forester

Hey y’all,
I have a 2011 Subaru Forester 2.5X 5M/T.
When I bought it (my second Forester now) I set a goal of sub 3,000lbs just to say I did it with full interior and accessories.
So far I’ve lost about 150lbs, leaving me another 100lbs to go. (Rated curb 3250lb).

The car is a ton of fun to drive and has plenty of pep, and while I will not call myself a true ecomodder (I have a lead foot after all), I do enjoy occasionally trying to best my mpg records.
My most recent trip showed 25.2mpg Highway @ 80mph average. (Boooooo!)
And I typically earn 24.3mpg average mixed between city/highway.
I’m just here to learn a few things, I currently don’t have any under trays and am running sticky, wide tires.

I have a few other four wheeled toys as well, if anyone likes rotaries we’ll be friends, lol.

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Old 06-15-2020, 05:22 PM   #2 (permalink)
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Not too familiar with Florida traffic, but I get better MPGs in stop and go than highway in the PDX area by driving the average speed of traffic (let gaps form when it's faster and close the gaps when it slows down). The whole point is to minimize brake use. It adds about 30 seconds to a 1hr commute driving that way.

You might replace the spare tire with a plug kit/inflator. It won't help you if a wheel gets damaged or something punctures the sidewall, but it should cover 90% of leaks.
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Old 06-15-2020, 05:24 PM   #3 (permalink)
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Subarus are fun, I loved mine.

Once I left it and moved to the Fit, I found its weight actually helped with mileage. My driving is almost entirely "highway". Without stop and go and with some drafting, the weight didn't hurt much, and the kinetic energy helped in several places where the Fit just doesn't carry the glides like the Subaru used to.
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Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

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Old 06-15-2020, 06:40 PM   #4 (permalink)
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Quote:
Originally Posted by redpoint5 View Post
Not too familiar with Florida traffic, but I get better MPGs in stop and go than highway in the PDX area by driving the average speed of traffic (let gaps form when it's faster and close the gaps when it slows down). The whole point is to minimize brake use. It adds about 30 seconds to a 1hr commute driving that way.

You might replace the spare tire with a plug kit/inflator. It won't help you if a wheel gets damaged or something punctures the sidewall, but it should cover 90% of leaks.
So far Iíve removed the spare tire/tools (insurance has free tows), any unneeded metal heat shielding from under the car, any unused brackets in the engine bay.
As well as replacing the exhaust system with a titanium one.
Lightweight battery, lightweight flywheel as well.

Iíve still got a long list of things to purchase but theyíre all big ticket items.
(Carbon hood, 2 piece lightweight brake discs, lighter driveshaft CF/Aluminum)
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Old 06-15-2020, 06:43 PM   #5 (permalink)
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Quote:
Originally Posted by Fat Charlie View Post
Subarus are fun, I loved mine.

Once I left it and moved to the Fit, I found its weight actually helped with mileage. My driving is almost entirely "highway". Without stop and go and with some drafting, the weight didn't hurt much, and the kinetic energy helped in several places where the Fit just doesn't carry the glides like the Subaru used to.

You know I was actually hunting down a Fit when I sold my previous Forester. I ended up with an S2000 and sold it very quickly because I missed the cargo space!

I was looking for a 2018/19 Sport trim in Helios Yellow Pearl WITH a 6 speed.
I found one but they were asking way too much for while an amazing car, Hondaís cheapest, lower end car.
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Old 06-15-2020, 06:44 PM   #6 (permalink)
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I always link to this thread when discussing weight reduction.

It's not likely to measurably improve MPGs, but you'll notice the difference in accelleration/handling.

https://acurazine.com/forums/3g-tl-p...st-1-a-610974/
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Old 06-17-2020, 07:03 PM   #7 (permalink)
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Haven't ever seen a manual Forester of this same model-year.

BTW would it be totally out of question to replace some glass with plexiglass for weight reduction?
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Old 06-17-2020, 11:58 PM   #8 (permalink)
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My thought on weight reduction is it's pointless to do for the purpose of MPG gain. The only reason then is faster acceleration and better handling, at which point you should be thinking about a different vehicle.
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Old 06-18-2020, 01:14 PM   #9 (permalink)
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Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
Haven't ever seen a manual Forester of this same model-year.

BTW would it be totally out of question to replace some glass with plexiglass for weight reduction?
Haha yes that would be out of the question!
Manual transmission was actually offered until 2018 for Non turbo Foresters.
The turbo manual combo ended in 2008 and is generally far more adored by the Subaru community.
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Old 06-18-2020, 01:17 PM   #10 (permalink)
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Quote:
Originally Posted by redpoint5 View Post
My thought on weight reduction is it's pointless to do for the purpose of MPG gain. The only reason then is faster acceleration and better handling, at which point you should be thinking about a different vehicle.
Understandable view point, seeing that this is my second Forester, I realized there isnít a car that fits me better. Being built on the Impreza chassis makes it favorable for modifications and retains car-like drivability while boasting massive cargo space. I donít do it for the MPG gain, haha itís honestly negligible. The nimbleness of the car however is noticeably improved as the weight comes off.

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