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-   -   Few questions for 2017 stick shift owners (https://www.ft86club.com/forums/showthread.php?t=115923)

curiosul 02-24-2017 12:08 PM

Few questions for 2017 stick shift owners
 
Actually thinking about getting one. I test drove one (see my impressions here) but I didn't have time to notice/check everything.
Questions:

1: What rpms do you get at 70 mph?
There's no youtube video of someone cruising (or even accelerating) in 6th gear. Maybe some one can post a youtube video of cruising, 1/3 throttle accelerating from 60 and WOT accelerating from 60 in 6th gear?
2: How accurate is the speedometer (compared to GPS)?
All the old cars I've had were doing around 67 when 70 was indicated.
The newest car I have (a 2016) is SPOT ON.
3: What kind of cruising MPGs do you get (flat road, no AC, 70mph, stock)?
4: How accurate is the indicated fuel consumption?
5: For "early adopters" (people who bought it in early fall) did you notice a big difference in fuel consumption between summer and winter blends of gas?
6: How do you get the high beams with the new headlights?
Is there a separate bulb (that I can't see in pictures) or is the whole assembly twisting up? Is it blinding for the incoming traffic or just a tad brighter than low beams?

Thank you!

Tcoat 02-24-2017 12:19 PM

You do realize that most of these questions are unanswerable with any form of consistency right?
Fuel consumption numbers depend on how and where you drive and there is no way to compare from person to person.
Do not use GPS as the benchmark for speed. They are only accurate to a few hundred yards and the transmission lag (they are in space after all) means what you are seeing on the speedometer and what you are reading on the GPS are not actually happening at the same time. Always believe the speedo over a GPS no matter how accurate they claim it is. If you have the same number it is more due to coincidence than reality.


The high beams are a separate bulb just like the old ones. It will blind oncoming traffic exactly the same any other high beam on a car.

strat61caster 02-24-2017 12:45 PM

1. about 3k rpm give or take
3. Should expect EPA numbers for freeway
4. It is optimistic by at least 10%
5. No, traffic conditions have a bigger impact.

Shinigami301 02-24-2017 01:39 PM

Quote:

Originally Posted by Tcoat (Post 2859650)
Do not use GPS as the benchmark for speed. They are only accurate to a few hundred yards and the transmission lag (they are in space after all) means what you are seeing on the speedometer and what you are reading on the GPS are not actually happening at the same time. Always believe the speedo over a GPS no matter how accurate they claim it is. If you have the same number it is more due to coincidence than reality.

Interesting- but your view differs from this:

http://gpssystems.net/accurate-gpsbased-speedometer/

Cole 02-24-2017 01:46 PM

Quote:

Originally Posted by Shinigami301 (Post 2859713)
Interesting- but your view differs from this:

http://gpssystems.net/accurate-gpsbased-speedometer/

Very biased view. I have a GPS tracker in my work truck. Guess how it gets its speed readings? The OBD2 port.

You better have a damn good GPS to be able to calculate speed in real time with any accuracy. Ie, sub meter and sub second sampling. The whole 10m+ of accuracy really won't cut it here.

DandoX 02-24-2017 02:16 PM

In my '13 FRS at sea level it is about 3200 rpm, maybe 3100 but around there.

Your elevation will impact this.

Tcoat 02-24-2017 02:22 PM

Quote:

Originally Posted by Tcoat (Post 2859650)
Always believe the speedo over a GPS no matter how accurate they claim it is.

Quote:

Originally Posted by Shinigami301 (Post 2859713)
Interesting- but your view differs from this:

http://gpssystems.net/accurate-gpsbased-speedometer/

You really just used the GPS propaganda info to support GPS propaganda?
I am not even going to debate this and use whatever you wish.
Any difference is so small as to be meaning less anyway.

Shinigami301 02-24-2017 02:26 PM

Certainly did not mean to irritate you with that, sorry if I did.

Tcoat 02-24-2017 02:50 PM

Quote:

Originally Posted by Shinigami301 (Post 2859764)
Certainly did not mean to irritate you with that, sorry if I did.

LOL I think you read the wrong tone! Was supposed to be "banterish" not "angry sarcasmese". So hard to write how it is intended sometimes.
All is good and as long as the speed you are fighting isn't on a cop's radar gun then what does a couple of MPH matter to anybody anyway? Neither speedos nor GPS are exactly precision measuring instruments.

strat61caster 02-24-2017 02:51 PM

Quote:

Originally Posted by Shinigami301 (Post 2859764)
Certainly did not mean to irritate you with that, sorry if I did.

What do you need to accomplish by having a more accurate speedometer?

I'm actually curious now...

Tcoat 02-24-2017 02:57 PM

Quote:

Originally Posted by strat61caster (Post 2859775)
What do you need to accomplish by having a more accurate speedometer?

I'm actually curious now...

Was sort of my point all along. Most of the other original questions have little to no value as well.

Shinigami301 02-24-2017 03:02 PM

Keyboard doesn't allow for much expression ;)

Borchert97 02-24-2017 03:06 PM

Quote:

Originally Posted by Tcoat (Post 2859650)
You do realize that most of these questions are unanswerable with any form of consistency right?
Fuel consumption numbers depend on how and where you drive and there is no way to compare from person to person.
Do not use GPS as the benchmark for speed. They are only accurate to a few hundred yards and the transmission lag (they are in space after all) means what you are seeing on the speedometer and what you are reading on the GPS are not actually happening at the same time. Always believe the speedo over a GPS no matter how accurate they claim it is. If you have the same number it is more due to coincidence than reality.


The high beams are a separate bulb just like the old ones. It will blind oncoming traffic exactly the same any other high beam on a car.

I always use the electronic speed warning signs around the city to gauge a vehicle's accuracy. As OP said, a lot of vehicles do understate their own speed. I'll go by an electronic sign indicating, for example 25 mph, at 32 mph, but the sign tells me I'm going 29 mph.

DM7 02-24-2017 03:14 PM

Tire wear will affect your speedometer reading as well. Going from a brand new tire with 9/32" tread depth to a bald one with 2/32" multiplied by 2 is 7/16" of change in diameter. Speedometer indicated speed will be higher than actual speed. Going from one tire make and model to another will change diameter as well even if they have the same size specifications.

Want accurate speed? Snapchat speed filter is the only way to go. ;)


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