RX-7 Gas Milage, MPG

***ZGN*** · 03-25-2008, 05:12 PM

Is anyone getting better than 20.8 MPG on the highway at speeds of 75 or below?

I have 850 pri and 1600 sec injectors with streetport.

ObliqueFD · 03-25-2008, 06:32 PM

I got 22 once. I also have an auto with 3.9 gears, so I'm sure that's why there is a difference.

djmtsu · 03-25-2008, 06:34 PM

Well, I have a 2nd gen, but I get about 26MPG on the highway (70mph+). It baffled everyone last year on the DGRR caravan how I had almost a 1/4 more tank of gas when we arrived than they did, and they were all NA.

Turbo swapped GXL with no emissions and full exhaust.

josh18_2k · 03-25-2008, 07:14 PM

29mpg with teh CC on

85rx-7gsl-se · 03-25-2008, 07:16 PM

Quote:

Originally Posted by djmtsu

Well, I have a 2nd gen, but I get about 26MPG on the highway (70mph+). It baffled everyone last year on the DGRR caravan how I had almost a 1/4 more tank of gas when we arrived than they did, and they were all NA.

Turbo swapped GXL with no emissions and full exhaust.

How in the hell did you get that mileage...your car was running so rich my eyes watered

djmtsu · 03-25-2008, 09:11 PM

No clue, but my shit was sipping gas. Maybe you are just 'sensitive'.

Lol.

Brent · 03-25-2008, 11:01 PM

I had a black R1 that I purchased from Herblenny. When I sold it, I drove it to Michigan and got 28mpg all highway. My red FD gets around 23-25mpg on the highway normally and around 20mpg mixed(still mostly highway). If it drops down alot, start checking your fuel system.

85rx-7gsl-se · 03-25-2008, 11:03 PM

Quote:

Originally Posted by djmtsu

No clue, but my shit was sipping gas. Maybe you are just 'sensitive'.

Lol.

Right...Then why did it backfire so much

***ZGN*** · 03-26-2008, 06:47 AM

As soon as I get off the Highway it drops to 12 to 15. Last year at DGRR I was getting about 7Mpg on the dragon.

SPICcnmFD · 03-26-2008, 07:22 AM

I usually get around 14-17 driving around. If I drive it to work for a while I'll get around 19. I did get 22-23 going from here to ATL running 80-82mph a couple of weeks ago, amazed me. And for the track I'll usually get between 6-8 depending on which track.

bbade · 03-26-2008, 10:55 AM

I managed to get from Allentown, PA to Bumblef*ck, Ontario on 3/4 of a tank of gas. I'm not sure the mileage because I didn't think to look before I left. The 7 is usually pretty good on the highway, but if I really get on it I can watch the needle drop haha.

afterburn27 · 03-26-2008, 12:03 PM

My car easily got 28mpg highway (with hills). This was with stock fuel/ignition/twins/ports, rx7.com chipped ECU, and almost every other bolt on.

I'm sure the intake, DP, MP, and catback actually helped highway mileage.

***Herblenny*** · 03-26-2008, 12:55 PM

This is what I posted on RX8 sub forum..

Quote:

Originally Posted by Herblenny

FYI... I drove my MB FD to Nashville on Wednesday.. On my way up there I stopped for gas 2twice. After about 86 mile run I was averaging about 80MPH and filled up 3.6 gallons of gas.

From there to next gas station, I was averaging about 90+ MPH (with occasional 120+MPH pulls) and 117 Miles I filled up 6.2Gallons!!

Bottom line, I'm getting better MPG on my FD than my 8

It took me 2hours and45 mins to go from Downtown Bham to Downtown Nashville with 2 stops.. I thought i did pretty good.

Signal 2 · 03-26-2008, 04:31 PM

I've regularly gotten 24 to 26 via interstate on essentially stock manual car (DP, Catback K & N). Where I live it's rolling hills to flat.
Way less around town, but I've never taken the time (maybe too afraid) to check that mileage.

mazpower · 03-28-2008, 06:02 PM

Best I've done is 24 mpg on the freeway, averaging 75. This is with a half-bridgeport, T-66 turbo, E6K, yadda yadda.

03-25-2008, 05:12 PM	#1
*ZGN* Administrator Join Date: Jan 2008 Location: Birmingham, AL Posts: 2,264 Rep Power: 10	RX-7 Gas Milage, MPG Is anyone getting better than 20.8 MPG on the highway at speeds of 75 or below? I have 850 pri and 1600 sec injectors with streetport.

03-25-2008, 06:34 PM	#3
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Well, I have a 2nd gen, but I get about 26MPG on the highway (70mph+). It baffled everyone last year on the DGRR caravan how I had almost a 1/4 more tank of gas when we arrived than they did, and they were all NA. Turbo swapped GXL with no emissions and full exhaust. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-25-2008, 07:14 PM	#4
josh18_2k Rotary Fanatic Join Date: Feb 2008 Location: Gresham, OR Posts: 473 Rep Power: 18	29mpg with teh CC on __________________

03-25-2008, 09:11 PM	#6
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	No clue, but my shit was sipping gas. Maybe you are just 'sensitive'. Lol. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-25-2008, 11:01 PM	#7
Brent Sua Sponte Join Date: Feb 2008 Location: Killeen, TX Posts: 839 Rep Power: 18	I had a black R1 that I purchased from Herblenny. When I sold it, I drove it to Michigan and got 28mpg all highway. My red FD gets around 23-25mpg on the highway normally and around 20mpg mixed(still mostly highway). If it drops down alot, start checking your fuel system. __________________ Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM

03-25-2008, 06:32 PM	#2
ObliqueFD Rotary Fan in Training Join Date: Feb 2008 Location: Lancaster, Ohio Posts: 53 Rep Power: 18	I got 22 once. I also have an auto with 3.9 gears, so I'm sure that's why there is a difference.

03-26-2008, 06:47 AM	#9
*ZGN* Administrator Join Date: Jan 2008 Location: Birmingham, AL Posts: 2,264 Rep Power: 10	As soon as I get off the Highway it drops to 12 to 15. Last year at DGRR I was getting about 7Mpg on the dragon.

03-26-2008, 07:22 AM	#10
SPICcnmFD Rotary Fanatic Join Date: Feb 2008 Location: B'ham, AL Posts: 329 Rep Power: 18	I usually get around 14-17 driving around. If I drive it to work for a while I'll get around 19. I did get 22-23 going from here to ATL running 80-82mph a couple of weeks ago, amazed me. And for the track I'll usually get between 6-8 depending on which track. __________________ 1993 Rx-7 SM2 #11 At the local AutoX: http://www.youtube.com/watch?v=9VOSQkkSLQs Speed for Sale shootout 2007: http://www.youtube.com/watch?v=JiqlyAkGmpg A few laps at Barbers: http://www.youtube.com/watch?v=6_h5q...x=0&playnext=1

03-26-2008, 10:55 AM	#11
bbade Rotary Fanatic Join Date: Mar 2008 Location: Macungie, PA Posts: 163 Rep Power: 17	I managed to get from Allentown, PA to Bumblef*ck, Ontario on 3/4 of a tank of gas. I'm not sure the mileage because I didn't think to look before I left. The 7 is usually pretty good on the highway, but if I really get on it I can watch the needle drop haha. __________________ Proud owner of a base 1993 Montego Blue FD. PFC, RB single tip, Koyo Radiator, KDR rebuilt motor, polished OEM front strut bar, FEED replica sideskirts, OEM 99 spec rear spoiler, SuperPro Bushings Many thanks to Dave at KDR for sparking my rotor addiction.

03-26-2008, 12:03 PM	#12
afterburn27 Rotary Fan in Training Join Date: Feb 2008 Posts: 58 Rep Power: 18	My car easily got 28mpg highway (with hills). This was with stock fuel/ignition/twins/ports, rx7.com chipped ECU, and almost every other bolt on. I'm sure the intake, DP, MP, and catback actually helped highway mileage. __________________ '93 RX-7 (GT3574 track toy) '74 Triumph TR6 (weekend cruiser)

03-26-2008, 04:31 PM	#14
Signal 2 Viable Fossil Join Date: Mar 2008 Location: Mid-West Posts: 199 Rep Power: 18	I've regularly gotten 24 to 26 via interstate on essentially stock manual car (DP, Catback K & N). Where I live it's rolling hills to flat. Way less around town, but I've never taken the time (maybe too afraid) to check that mileage. __________________ Jim VR R1 FD

03-28-2008, 06:02 PM	#15
mazpower Rawr Bearclaw Join Date: Feb 2008 Location: The Souf Posts: 197 Rep Power: 18	Best I've done is 24 mpg on the freeway, averaging 75. This is with a half-bridgeport, T-66 turbo, E6K, yadda yadda.