FC fuel milage, whats yours?
#26
Winter Rotary
iTrader: (5)
No one asked you whether or not you thought it was true.
'Hard interstate driving' is a lot of passing via downshifting to 4th, inconsistent speed and possibly bad traffic.
Regardless of the modifications to my car, they, nor your opinion, will alter the fact of what my fuel numbers average.
'Hard interstate driving' is a lot of passing via downshifting to 4th, inconsistent speed and possibly bad traffic.
Regardless of the modifications to my car, they, nor your opinion, will alter the fact of what my fuel numbers average.
#27
Lots of rotors
iTrader: (33)
Stock port N/A I take it? Compression numbers? How many miles to a tank? O2 hooked up and working?
I'm going to go ahead and call bullshit.
There is no way in hell you are getting better than the OEM rated gas mileage AFTER removing emissions equipment that aids in fuel economy, despite the lack of accessories.
And what the hell is "hard interstate driving"? You are either doing the speed limit/slightly above or at WOT, meaning 8000rpm in 4th gear @140mph.
I'm going to go ahead and call bullshit.
There is no way in hell you are getting better than the OEM rated gas mileage AFTER removing emissions equipment that aids in fuel economy, despite the lack of accessories.
And what the hell is "hard interstate driving"? You are either doing the speed limit/slightly above or at WOT, meaning 8000rpm in 4th gear @140mph.
#28
Winter Rotary
iTrader: (5)
It takes a lot of effort and thought to pull 30mpg out of an FC on the interstate, especially if it's hilly. Throttle control, following distances kept in check, using road tractor trailers to your advantage, consistent speed without losing too much going uphill or using too much throttle, etc.
I simply will not argue my experience with you Khan, I really will not. If you don't believe me, that's fine.
Brett, did you remind everyone that that 27mpg average was with the A/C on? Oh yes, I went there.. Watch the **** start flying because I said power-sucking A/C was used. Well, to be honest, using the A/C and achieving such numbers makes remarkable sense for the simple fact that while using the A/C saps power, you are able to run windows up and sunroof closed which streamlines the aerodynamics ridiculously, and reduces drag. A reduction in drag is reduction on CONSISTENT load on the motor, reducing the amount of fuel necessary to keep a consistent speed...where as the A/C compressor only runs now and again.
I simply will not argue my experience with you Khan, I really will not. If you don't believe me, that's fine.
Brett, did you remind everyone that that 27mpg average was with the A/C on? Oh yes, I went there.. Watch the **** start flying because I said power-sucking A/C was used. Well, to be honest, using the A/C and achieving such numbers makes remarkable sense for the simple fact that while using the A/C saps power, you are able to run windows up and sunroof closed which streamlines the aerodynamics ridiculously, and reduces drag. A reduction in drag is reduction on CONSISTENT load on the motor, reducing the amount of fuel necessary to keep a consistent speed...where as the A/C compressor only runs now and again.
#29
Administrator
Streetported 91 non-turbo 5 spd Coupe = solid 360-375 miles before she starts coughing.
That's about 22-23 mpg over mixed driving 70% highway / 30% street. Oh yeah, I drive the **** outta her too.
That's about 22-23 mpg over mixed driving 70% highway / 30% street. Oh yeah, I drive the **** outta her too.
#30
MMM Bacon to face!
Join Date: Jan 2006
Location: Silver Spring MD
Posts: 72
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Out of all of the FCs that are in my area I don't know one car, that when running properly, doesn't break 20mpg in the city. Most of them are N/As but there's a couple turbo cars thrown in also. Oh and I'm right outside of DC so it's usually pretty bad city traffic.
Pop's 91 N/A Prof Catback: 21ish city ~25 highway
Billy's Stock 91 N/A: same numbers
Josh's Stock 87 N/A: 22 city, 26+ highway, when running correct
Jimmy's Sotck 88 T2: 20 city, ~22 highway, out of boost of course lol
Pop's 91 N/A Prof Catback: 21ish city ~25 highway
Billy's Stock 91 N/A: same numbers
Josh's Stock 87 N/A: 22 city, 26+ highway, when running correct
Jimmy's Sotck 88 T2: 20 city, ~22 highway, out of boost of course lol
#32
Former FC enthusiast
iTrader: (2)
An S4 FC is rated at 15mpg city, 21 highway. There is no ******* way in hell you picked up 9mpg from deleting emissions (i.e. lowering fuel economy) and freeing up the exhaust and removing accessories AND driving the car hard. Every retard is out to prove that his car is special in some way. Like the water temp threads where some dipshit always comes in and goes "MY WATER TEMP STAYS AT 160 ALL THE TIME, YOU GUYS SHOULD FIX YOUR CARS!"
#34
Lots of rotors
iTrader: (33)
I can get 26.something out of my S4 n/a with a **** ton of miles and a huge exhaust, so I can see getting 30 mpg driving down from SC to GA with a stripped, fairly low mileage block and a more-free-flowier exhaust. I really doubt he took more than 5 hard pulls, so that shouldn't kill fuel economy much.
Just to think though- he's never really tested the a/f ratio on the car, so it's possible that it's running lean or something. Idk, I'm just backing up a friend. I've known him for years and he's always been good at squeezing out the numbers, even in my FC, so I trust them
#35
Former FC enthusiast
iTrader: (2)
LOL! Are you ******* kidding me? Not only do I have a boosted car but I also don't drive like a grandma to try and squeeze every last mile out of the tank. You obviously bought the wrong car for gas mileage. I can imagine how much it must suck to drive slow as **** in a POS like an FC (like all FCs as far as daily driving is concerned).
Theres no way he'll just run lean 24/7, rich possibly but not lean. Now that you've mentioned all the actions you take to ensure the best possible gas mileage though I'm almost convinced that its actually true. If it is then I apologize, my reasoning being that I had absolutely no clue an FC owner could actually do things like draft semi's to reduce fuel mileage. Props to you, I guess...lol.
Theres no way he'll just run lean 24/7, rich possibly but not lean. Now that you've mentioned all the actions you take to ensure the best possible gas mileage though I'm almost convinced that its actually true. If it is then I apologize, my reasoning being that I had absolutely no clue an FC owner could actually do things like draft semi's to reduce fuel mileage. Props to you, I guess...lol.
#36
Winter Rotary
iTrader: (5)
Who says I drive like a grandma? Brett, do I drive like a grandma? Wait, now I'm really confused..
Khan, you're in Orlando (Wow, I'm sorry..).. Why don't you drive up here and ride with me for a few days. That way when you experience this whole shebang first hand, you can apologize to me while you kiss my gay *** and like it.
And on that bombshell, this is no longer amusing to me, so I'm done.
Oh, by the way...
24.2mpg as of yesterday's fillup. Lots of fun full throttle interstate merging, passing and cruising at 5,000 revs in 2nd then flooring it to **** with my friend's ex boyfriend in his craptastic Integra. That also includes a 0-100 run.
Khan, you're in Orlando (Wow, I'm sorry..).. Why don't you drive up here and ride with me for a few days. That way when you experience this whole shebang first hand, you can apologize to me while you kiss my gay *** and like it.
And on that bombshell, this is no longer amusing to me, so I'm done.
Oh, by the way...
24.2mpg as of yesterday's fillup. Lots of fun full throttle interstate merging, passing and cruising at 5,000 revs in 2nd then flooring it to **** with my friend's ex boyfriend in his craptastic Integra. That also includes a 0-100 run.
#40
big turbo spoolin
iTrader: (2)
Who says I drive like a grandma? Brett, do I drive like a grandma? Wait, now I'm really confused..
Khan, you're in Orlando (Wow, I'm sorry..).. Why don't you drive up here and ride with me for a few days. That way when you experience this whole shebang first hand, you can apologize to me while you kiss my gay *** and like it.
And on that bombshell, this is no longer amusing to me, so I'm done.
Oh, by the way...
24.2mpg as of yesterday's fillup. Lots of fun full throttle interstate merging, passing and cruising at 5,000 revs in 2nd then flooring it to **** with my friend's ex boyfriend in his craptastic Integra. That also includes a 0-100 run.
Khan, you're in Orlando (Wow, I'm sorry..).. Why don't you drive up here and ride with me for a few days. That way when you experience this whole shebang first hand, you can apologize to me while you kiss my gay *** and like it.
And on that bombshell, this is no longer amusing to me, so I'm done.
Oh, by the way...
24.2mpg as of yesterday's fillup. Lots of fun full throttle interstate merging, passing and cruising at 5,000 revs in 2nd then flooring it to **** with my friend's ex boyfriend in his craptastic Integra. That also includes a 0-100 run.
#42
Rotary Powered Since 1995
iTrader: (4)
It doesn't take much to beat stock fuel economy ratings from 20 years ago. I read somewhere that the EPA ratings are easily beaten in any car nowadays because with the typical driving styles of normal people, those numbers are all they can get, and it's what they expect from the car.
I've logged about 140,000 miles in my two NA FCs. The current one is all stock, the previous one had an open exhaust and a mild streetport. Both got pretty consistent gas mileage: 14/23 for the NA streetport and 16/24 for my current all stock car. I'd say if you really took care, 30 on the highway should be possible. I'm more skeptical of the 20+ mpg city claims, but different people define "city" driving differently. I define "city" mileage as a tank driven mostly in stop and go commuting-type driving, not a mixture of highway and stop-and-go driving. In mixed driving, I could easily see averaging 20 mpg.
#45
Rotary Powered Since 1995
iTrader: (4)
Ah. Thanks for pointing that out. I see it says on the page you linked to that "We have revised the 1985-2007 MPG estimates to make them comparable to the new 2008 and later MPG estimates." This explains the difference. My figures came from the original Mazda brochures from the 80s.
#47
Rotors still spinning
iTrader: (1)
Stock (currently) S5 n/a, 21.5-22.5 hwy at 70 mph average. The car was rated at 25 hwy from the factory. With our current ethanol equipped crappy gas, if you figure I should have lost about 10% economy due to it, then that should mean I get about 22.5 mpg. That's about right.
This car runs absolutely stupid rich. It even sputters while warm at idle. The exhaust tips are completely black and the bumper gets dirty quickly as a result. If I leaned it out, I could probably pick up lots more hp and mileage. My old '88 didn't run nearly as rich stock and even with no tuning but some good exhaust work that car would get about 27 mpg hwy. With a 100 mile per day commute, I'd kill to get that again.
As far as not being able to beat stock mileage because removing emissions devices increases efficiency over not having them, that represents a complete lack of understanding of the RX-7 exhaust. The stock exhaust is extremely restrictive. You waste hp and economy just trying to push air out of it. Get a nicer free flowing exhaust on there that aids in scavenging and you'll increase the VE of the engine almost everywhere which means more power and more economy. There is a limit to everything though but just installing a header would net more mileage on these cars. That's assuming you can keep your foot out of it since it's so much more fun.
I tried hypermiling for 1 tank of gas on this car. It included coasting whenever I could and shutting off the engine at lights. It only got me 24.6 mpg which is only 2 better than what I typically get. It just runs too damned rich. Once I get an ecu on it and do some other things, if 30 mpg hwy isn't possible, at least getting right up near it shouldn't be an issue.
This car runs absolutely stupid rich. It even sputters while warm at idle. The exhaust tips are completely black and the bumper gets dirty quickly as a result. If I leaned it out, I could probably pick up lots more hp and mileage. My old '88 didn't run nearly as rich stock and even with no tuning but some good exhaust work that car would get about 27 mpg hwy. With a 100 mile per day commute, I'd kill to get that again.
As far as not being able to beat stock mileage because removing emissions devices increases efficiency over not having them, that represents a complete lack of understanding of the RX-7 exhaust. The stock exhaust is extremely restrictive. You waste hp and economy just trying to push air out of it. Get a nicer free flowing exhaust on there that aids in scavenging and you'll increase the VE of the engine almost everywhere which means more power and more economy. There is a limit to everything though but just installing a header would net more mileage on these cars. That's assuming you can keep your foot out of it since it's so much more fun.
I tried hypermiling for 1 tank of gas on this car. It included coasting whenever I could and shutting off the engine at lights. It only got me 24.6 mpg which is only 2 better than what I typically get. It just runs too damned rich. Once I get an ecu on it and do some other things, if 30 mpg hwy isn't possible, at least getting right up near it shouldn't be an issue.
#49
Rotors still spinning
iTrader: (1)
I'll get around to that one day. Hopefully soon. I worked on the bracket a little bit in CAD but have been so busy lately that I haven't actually had a chance to get under the hood.
Nope not this year. Went the past 5 but it's just not going to happen this time around.
Nope not this year. Went the past 5 but it's just not going to happen this time around.