How much MPG does everyone get?(List mods)

I get around 9-12 on local driving mix with little freeway w/ my 91 coupe

Mods:
CS catback
HKS intake
Tokico Illumnias w/ Tanabe GF's
Cusco Front Strut bar
(iono if suspension mods make a difference.... )

(am i getting ripped off by my car yet??)

 

I get 17-18 full city driving, don't know what I'd get with full highway/freeway though. When I take short trips on the freeway I easily hit 19 and crack 20 without a problem as well, and this is with very minimal driving on the freeway. I usually average about 17.6 daily driving my rx7 to and from college, all city. Mod list follows.

Battery / Charging / Wiring
FD Alternator With Black Rotorshaped hiGGi Dual Alt Pulley
Upgraded Grounds
Everstart Battery

Body
S5 Bumper and Molding Conversion
S5 Tail Lights
S5 Aero Mirrors
Fresh Air Headlight Cover
FTP Lenses Painted Black
Round Headlight Conversion

Brakes
Brake Calipers Painted Gunmetal
Valvoline Synthetic Brake Fluid

Cooling
Escort E-Fan

Drivetrain
Solid Motor Mounts
Solid Tranny Mounts
Redline MT90 Synthetic Tranny Fluid
Solid Steel Front Differential Mount
Solid Delrin Rear Differential Mounts
Redline Super Lightweight Shockproof Differential Oil
GMC Differential Additive
Short Shifter
ACT Clutch with HD Pressure Plate
RB Aluminum Flywheel
Pinion Snubber

ECU
S-AFC (Blue screen)

Electronics
Innovative LM-1 Wideband Data Logger
Alpine CDA-9811 MP3 Deck
BEL 540i Radar Detector

Engine
Large Secondary Intake Porting with removed divider
Mild Primary Intake Porting
Street Exhaust Porting with removed diffuser
Removed Actuators/Sleeves/Etc.
RA Seals
Atkins Viton Oil Rings
Atkins Thermal Bypass Pellet
Corksport SS Oil cooler Lines
Racing Beat 85psi OPR
Racing Beat Main Underdrive Pulley
Redline Synthetic 20w50 Engine Oil
All Emissions Removed/Blocked Off
Removed MOP and Now Premixing
Generic Oil Catch Can

Exhaust
Racing Beat Header
2.5” Test Pipe
2.5” Y-pipe/Catback
Dual BOMZ GT Style Straight Through Mufflers

Fuel
TII Fuel Pump
Custom Routed Fuel Lines

Gauges
Custom 3 Gauge Panel Above CD Player
Autometer Z Series Air/Fuel Ratio
Autometer Z Series Water Temp
Autometer Z Series Oil Temp
Autometer Z Series Oil Pressure (mounted in ashtray area)

Ignition
MAGNECOR 10mm Performance Plug Wires

Intake
Custom Cold Air Intake With K&N FIPK Filter
Heavily Ported Upper and Lower Intake Manifolds
Ported TB/TB Plastic Elbow and TB Mod

Interior
Full Black Interior Conversion
Corbeau GT Racing Seats
Momo Club 4 365mm Steering Wheel
Momo Round Shift ****
Momo Shift Boot

Suspension
Ground Control Coilovers with Eibach Race Springs (6" 350 front, 8" 275 rear)
Tokico Illumina 5-way Adjustable Fronts
Tokico Illumina 5-way Adjustable Rears
Racing Beat 3/4" Lowering Strut Mounts
Mazdatrix Independent Rear Camber Adjusters
Racing Beat DTSS Eliminator Bushings
Full Polyurethane Bushings Replacement
Front and Rear Corksport Strut Tower Bars
Mazdaspeed Lower Arm Stiffener Bar
Front and Rear Suspension Techniques Sway Bars

Tires / Wheels
Primax 684 Wheels (17lbs each)
Eagle F1 GS-D3 225/50ZR16 tires

Weight Reduction
~250 Pounds and Counting



Also, not listed is that I'm running about 15º advanced timing and am untuned. I have the s-afc and wideband hooked up but just haven't tuned it fully yet, have no corrections in the s-afc currently.

 

with the stock computer I was getting raped. Running 550's when its meant to run the 460(?). I have microtech now so I havent compared yet...

 

S5 TII-G Force ecu uprade plus others, 18/19 average.

 

with tires inflated properly, and intake/full exhaust/stockport only computer mod was safc dialed in to maximum lean (-17%@5krpm) i kept it at 3200 rpm exactly at -10%. i pulled 40mpg on a trip to long beach... about 20miles. i still dont know how i did that.
course also.. if im getting on it.. ill see about 10mpg in the city. normally its about 15 tho

 

i got 10-12 mpg city shifting under 3000, probably 15 hwy
i dont go over often

 

Right now im getting 17-19 mpg mix city/highway. This is with an untunned S-AFC and no o2 sensor by the way. Last year when i was using my old o2 sensor i was getting up to 20 on the highway so i believe that the o2 sensor is good for about 1-2 mpg which in todays world is worth it.

By the way on a side note as soon as you go into boost on a TII you loose a dramatic amount of mpg. I find that on the average run if i drive "underboost" (new term?) I get a hell of a lot better mpg than if i drive even 1 or 2 psi "intoboost"

 

With all due respect 40MPG - naah. You might have put less fuel in the second fill.

 

My 90 GXL gets about 15-17 mpg during the winter, about 18-20 mpg in the summer, with normal driving, and the occasional visit to redline.
Mods: Apexi intake, RB presilencer, and catback exhaust, stock TII rims, and front and rear strut bars.

 

I got like 23 MPG on my 700 mile trip from Cincinnati to NC. Mostly highway though. I usually get like 15-17 in city though. This basically a stock just Apexi Intake, and a Cheap Exhaust.

 

10 MPG in everyday driving.

-13B 6-port N/A
-No aux sleeves
-Cold air ram-intake & cone filter
-TB Mod - single set of secondary butterflies
-No emissions gear/thermowax
-Microtech Digi Series 1 Pro ECU Tuned & = 130.1 rwhp (secondary injectors only)
-Leaky filler cap (every corner i lose some fuel out the side)
-Lead foot

 

i get average of 18-19 with 50/50 city/highway driving. when i do long trips i see about 23-24 mpg.

 

18-20 driving semi aggressively at times but most of it is highway miles.

22.5 on long road trips when i am not goosing the throttle much.


mods in my sig.

 

I see about 17mpg city, 23mpg daily (half highway, half stop-and go) and about 25mpg full highway.

6 port Series 4 13B N/A
Dirty cone intake, Bonez racepipe, CS cat-back, HKS S-AFR leaned out -4% at cruise, new O2 sensor, old spark plugs, aux ports wired open, about 150 pounds of weight reduction (2470 pounds at half-tank.)

 

Weight reduction helps, thats for shure.


Gil

 

wtf no turbo 10 mpg ... nice

 

On the trip to Sevenstock last fall I averaged 25-27 MPG, all freeway driving. Everyday driving, I get 17-20 MPG. Really boosting alot...maybe 15 MPG. Rebuilt engine myself winter of 03-04 used RA apex seals, stock porting, stock turbo. TID mod with dual cone K&N filter, Flow through stainless mufflers and silencers in (most of the time).

 

I talked to a guy who was selling an '86 GXL for $500.00 yesterday (in really tough shape...) and he was trying to tell me that he averaged 35 MPG driving it to work daily, everything on it looked stock. I think he was trying to blow smoke up my xxx! I just said "Wow, thats UNBELIEVABLE!"

 

20-21 mpg daily driving. 87 T2 - AC, PS, Exhaust mods, intake, no emmisions, Rtek 1.5

 

The hummer has nothing on me..hehe. They say that oil will run out in 2050??I'll drive that down to like 2010......

 

I think its so bad because:

a) No primary injectors, pretty much got to floor the pedal to accelerate at all

b) Leaking fuel out the filler cap

 

26 is my best. Mostly highway.

 

8.9 miles/ gal ( I do 189km to 50 litres )

only city driving.... I know she runs a bit rich...
scared to go on a longer trip because I will prob run out of fuel between fuel stops :P

 

lol thats insaner than my 10MPG

On a good day I get maybe 230km out of 53 litres :P

What are the specs of your engine? Mods?

 

T04E, front mount, full 3", 2x550's 4x720's, microtech + Lots of other bits and peices.

Hmm Im curious is my **** compression has much to do with fuel economy ?

but hell it doesnt really worry me, sure fuel is pricy but hey if thats what it cost to have good power and a hell of a lot of fun then I will pay it ($1.14 a liter)