Hey everyone. I'm curious as to what you slightly modded guys and heavily modded guys are getting for gas mileage. Please post your significant mods and your mileage!

(ps Sorry if this is a repost)

 

it is a repost, but search is down, so dont worry about it...

Anyways, I am not modded, but it seems that a lot of Turbo guys lose gas mileage by about 10mpg on average... because they apperantly aren't tuning right.. Bauley has about the same mileage as before turbo so he says... as long as it isnt running in boost of course... So that all comes down to tuning as far as I know...

Other posts ive seen show about 25-30 mpg on daily driving with more agressive cams.. at least from what Ive seen.

for those who mash on it all the time, with the same mods.. I believe they said around 20-25...

These are all from memory, and estimates... nothing concrete.. Ive seen as low as 15-17 mpg for some seriously modded, driven hard, race ready mods.

 

d16y8 i/h/e, running rich, 29-36 mpg's

 

Alignment and drivetrain efficiency are also huge factors of mileage; check toe settings, CV conditions, and tire pressures. Also running a short ram intake for everyday driving will help mileage.

I went on the Super Street Tour in 2000 (D16Z6 at 110,000 miles with I/H/E), and I averaged 46 mpg on the way home.

Now I've got 250,000 miles, with a hot cam and a ton of fuel and drivetrain problems, and I'm still getting 32-35 mpg.

 

d16z6 264k miles i/e getting bout 20 in the city, and 30 on the highway

 

23mpg

 

turbo sohc, quick enough to out run stock m3's and gto's and still get 35 mpg highway

 

D16Z6, no mods, 165k, 33-38mpg

For your reference.

I drive like a granny these days.

 

Shitty winter 89 octane w/ SRI only = 30-33mpg
Less shitty summer 89 octane w/ SRI only = 37-40mpg

I attribute the worse winter mileage to the time spent idling to warm the car up every day as well as the shittier winter mix.

I cant wait to see what my mileage does after H/E, port & polish, hot cam and new valvetrain.

 

My stock CX with Short ram intake, 16" motegis, and nitto neogen tires can go about....300 miles on 8 gallons.

 

On Christmas Day, before I totalled my EX, I was getting about 31 mpg, with 212k on the odometer, and I drove it like a banshee.

 

d15b7 I/H TB Spacer, no cat, stock after cat and fuel supply issues bout 18-20mpg

 

25 mpg...intake and cat-back

 

LS/VTEC with Jackson= 25-27mpg

 

im geting about 25-35 on 00si with i/h/e and nology wires

 

21-25mpg Took a big hit with intake manifold and throttle body.

 

my EM1 with mods get about 25 mpg.

 

my em1 i/e/shitty oversized tires = 28mpg

 

94 Si, mostly gutted....used to get 40 mpg freeway, but now with PM6 pistons and 4.9 FD, I get about 32-35 freeway and anywhere between 20 and 30 city

 

93 EX EG, 55K on motor, AEM CAS, UR under-drive pulleys, Apex'i VAFC II (running a little rich), Tanabe sustec-SS type II suspension, 15" 2001 EX wheels w/ winter tires, Energy Sus PU bushings, test pipe running to stock EX exhaust, 93 octane at least, sometimes mixed with 100 octane gas. I get 29-32 MPG and I usually drive like a crack head on his way to get a fix. LMAO!!!

 

all i have is intake, but when i drive my car hard (like usual) i get about 23-25 mpg city, its a D17 motor on a sedan (the econobox)
Highway i can get around 36-38mpg when im not opened up all the way hehe

 

96 Civic LX sedan.

D16Y7 with SRI/Y8 IM/stock from there. Iridium Plugs, Amsoil air filter, 16" rims w/Proxes4 tires,
Consistent 31mpg, semi-city, semi-highway. 300miles on ~10 gallons.

 

Damn, i only get like 250 miles on ~10 tank.......i don't think i drive like a fool... weird.

 

modded out b16 beat on it everytime i start it (isint my daily) hit VTEC offof every light and always top out third on the freeway, which is about 80mph on my trans

get about 22mpg with a wideband tune and a chipped ecu running BRE

 

about 30 mpg on a stock 95 ex coupe.