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Old 09-08-2014, 11:14 AM   #1
MrAnthonyC
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Question Teach me how to drive!

Hello guys.. so after getting this car, I have really been interested in improving my driving. My two main concerns right now are fuel efficient driving and maximium acceleration. Yes, I know those two don't go together but I am interested in improving in both aspects.

For fuel efficiency, how do you guys find you can keep your MPG up? I am getting about 24-25 mpg right now with street and hwy driving. I know that is about right for this car but i'm curious on methods of maybe getting that up. I use 93 octane gas btw, not sure if that affects it.

For accelerating, how do you create the most acceleration in the car? I believe it has to do with shifting gears at certain RPM, right? I am a novice obviously...

Thanks guys!
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Old 09-08-2014, 11:20 AM   #2
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My eco mode is to shift around 2500 rpm, but I can''t resist to drive slow in this car.
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Old 09-08-2014, 11:23 AM   #3
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I use cruise control and 6th gear as much as possible and shift around 3000 RPM.
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Old 09-08-2014, 11:25 AM   #4
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For fuel efficiency:

1) When accelerating, be light on the throttle and upshift at 2500-3000 RPM.
2) When cruising, upshift to the highest gear that will keep you above 2000 RPM.
3) Note: if you encounter an incline, downshift to avoid lugging your engine.

For maximum acceleration:

1) Downshift into the lowest possible gear that will keep you below 7400 RPM, press the throttle fully, and upshift when the tach hits 7400 RPM.
2) Note: make sure you understand the gearing in the car. If you exceed 7400 RPM on your downshift, there is a good chance you will damage your engine.
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Old 09-08-2014, 11:35 AM   #5
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Originally Posted by JM9ISM View Post
My eco mode is to shift around 2500 rpm, but I can''t resist to drive slow in this car.
a-fucking-greed. (agreed)

It's just so tempting to zip around in this car!
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Old 09-08-2014, 11:41 AM   #6
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Originally Posted by DarkSunrise View Post
For fuel efficiency:

1) When accelerating, be light on the throttle and upshift at 2500-3000 RPM.
2) When cruising, upshift to the highest gear that will keep you above 2000 RPM.
3) Note: if you encounter an incline, downshift to avoid lugging your engine.

For maximum acceleration:

1) Downshift into the lowest possible gear that will keep you below 7400 RPM, press the throttle fully, and upshift when the tach hits 7400 RPM.
2) Note: make sure you understand the gearing in the car. If you exceed 7400 RPM on your downshift, there is a good chance you will damage your engine.
Is there any noticeable lag on the tach? Hypothetically, if I was fully depressing the throttle and trying to shift at precisely 7400 rpm, would I shift a moment before the needle hit it, or is the tachometer pretty much exact? I'm a computer guy..i'm used to things lagging behind..
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Old 09-08-2014, 11:42 AM   #7
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Quote:
Originally Posted by DarkSunrise View Post
For fuel efficiency:

1) When accelerating, be light on the throttle and upshift at 2500-3000 RPM.
2) When cruising, upshift to the highest gear that will keep you above 2000 RPM.
3) Note: if you encounter an incline, downshift to avoid lugging your engine.

For maximum acceleration:

1) Downshift into the lowest possible gear that will keep you below 7400 RPM, press the throttle fully, and upshift when the tach hits 7400 RPM.
2) Note: make sure you understand the gearing in the car. If you exceed 7400 RPM on your downshift, there is a good chance you will damage your engine.
Good tips. I'd recommend most people to start upshifting at ~7000 if they're trying to learn. Chances are, they can't shift quickly nor smoothly enough if they begin the upshift at the redline.
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Old 09-08-2014, 11:46 AM   #8
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Quote:
Originally Posted by MrAnthonyC View Post
Is there any noticeable lag on the tach? Hypothetically, if I was fully depressing the throttle and trying to shift at precisely 7400 rpm, would I shift a moment before the needle hit it, or is the tachometer pretty much exact? I'm a computer guy..i'm used to things lagging behind..
In my 6MT, I haven't noticed any lag on the tach. I can upshift right at 7400 RPM.

@Jyn raises a good point though. If you're still new at this, you may want to practice upshifting at 7000 RPM until you get the hang of it.
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Old 09-08-2014, 12:45 PM   #9
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Quote:
Originally Posted by DarkSunrise View Post
For fuel efficiency:

1) When accelerating, be light on the throttle and upshift at 2500-3000 RPM.
2) When cruising, upshift to the highest gear that will keep you above 2000 RPM.
3) Note: if you encounter an incline, downshift to avoid lugging your engine.

For maximum acceleration:

1) Downshift into the lowest possible gear that will keep you below 7400 RPM, press the throttle fully, and upshift when the tach hits 7400 RPM.
2) Note: make sure you understand the gearing in the car. If you exceed 7400 RPM on your downshift, there is a good chance you will damage your engine.
Follow this advice to a T and you should get everything you asked for. Also be careful, Long Island drivers suck.
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Old 09-08-2014, 07:27 PM   #10
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Quote:
Originally Posted by MrAnthonyC View Post
Is there any noticeable lag on the tach? Hypothetically, if I was fully depressing the throttle and trying to shift at precisely 7400 rpm, would I shift a moment before the needle hit it, or is the tachometer pretty much exact? I'm a computer guy..i'm used to things lagging behind..
You need not worry about overrevving this engine while accelerating up through the gears as the engine is electronically rev limited to 7,400 rpm, and as a bonus it seems the rev limiter is a soft limiter: the engine doesn't so much cut out as refuse to rev any higher. This is a bonus if you unintentionally hit the limiter before you actually shift. The trick is to shift just before the limiter cuts in as hitting the limiter will slow your acceleration runs. Generally I reach for the shifter as the tach passes through 7,000 rpm or so and then by the time the red light begins to flash indicating the rev limiter is about to cut in I can complete my shift.

Do NOT downshift at too high a speed for the gear selected. If you do so you may wreck your engine. There is no protection built in to the car to prevent you from making this mistake (unlike an automatic which usually just beeps at you if you paddle shift down to too low a gear). I'm pretty sure this engine will hold together at 8,000 rpm, maybe only once and I'm only pretty sure. Engines blow up when they are overrevved with the intake valve open on a cylinder. It's the inertia of the piston and connecting rod that breaks the rod or sometimes it's the inertia of the valve and spring that crashes the valve heads into the rising piston, referred to as valve float.

Should you ever sense that you've just selected too low a gear as you let in the clutch pedal shove that left foot to the floor immediately and hope you didn't reach the full rpm for that road speed in that gear. You do get some warning even from an engine that likes to rev this much but it is only a split second before the engine is actually driven to excess rpm by the wheels travelling too fast for the gear you thought you wanted. This is a very rev happy engine whatever the press may say about the noise and torque dips etc. It loves to rev and sounds great while doing it. It isn't a lot noisier at 7,000 rpm than it is at 5,000 rpm.

Learn to shift up aggressively before you learn to downshift aggressively.

Here's the calculated speeds in each gear:

http://www.ft86club.com/forums/showthread.php?t=6325

The spread is a little unusual in that you normally expect a mathematical progression. Why Subaru chose to make fourth closer to fifth and fifth closer to sixth than is ideal is puzzling which then makes the spread from 2 nd to 3rd look odd. This may account for the impression that second gear isn't quite tall enough, or first gear isn't short enough depending on whether 0-60 means anything to you or not. Normally you expect the speed differences as you shift up the box to become wider in nominal numbers: 22/24/26/28/30 would be within the expected range and a progression would be even more logical.

Also, the steps are 22 mph/26 mph/22 mph /22 mph/ and fifth to sixth is not relevant to the discussion because it will be an "overdrive" deliberately selected for fuel economy, this engine won't pull redline in sixth and that is now very usual.
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Old 09-08-2014, 10:31 PM   #11
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Hyper miling tips:


http://ecomodder.com/forum/EM-hyperm...ecodriving.php
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Old 09-09-2014, 01:27 AM   #12
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24-25? I usually get 30 and I shift at 3500 for the most part.
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Old 09-09-2014, 02:21 AM   #13
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Kinda left of field I know, but I belive the FRS still does not come equiped with the JDM underbody panels? I was wondering how much of an impact they might have on economy if you were to introduce them into the equasion along with lowering the car sligtly.

Still reading through it but found this thread really entertaining and kinda related to your query on improving economy, but from the physical mod rather than driver side of the coin - http://www.ft86club.com/forums/showt...nderbody+panel
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Old 09-09-2014, 02:27 AM   #14
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Learn to drive better? Whatever you do, do it smoothly. Your passengers will thank you.
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