matpl500

I recently bought a 97 coupe with a b16a . I noticed that my gas gauge goes down really quick, not because i pop the occasional VTEC, but just around city driving. I assumed there was a cat because there is no c.e.l. i looked underneath and its just a dc header going into a pipe with a sensor in the header. Could this be the reason? also where can i get a good enough cat that will keep my gas mileage normal?

ricky00

b16 are horrible on gas mileage.. dont expect b16 tranny to give u good mileage.. if u want more mile on ur car get a gsr tranny

grumblemarc

iTrader: (4)

Define "horrible" gas mileage. What are you averaging per tank?

egsleepercivic

missing cat should not cause poor gas mileage, if you don't have a cat and its obd2 and you are not getting a CEL, I would assume that the ecu is either a chipped obd1 ecu with poor map or the Cel light wire has been clipped

matpl500

I forgot to mention it has a gsr tranny haha sorry

matpl500

My cluster doesnt even work properly. I filled up $20 regular gas 6 gallons. I drove maybe 20 miles and already im close to empty.

matpl500

The c.e.l light works in teh beginning when i start the car. it lights up but dissapears.

grumblemarc

iTrader: (4)

Sounds like you have other issues besides gas mileage. If the cluster isn't working properly how do you know the gas indicator is reading correctly?

BryanM.

iTrader: (1)

I get great fuel economy with my B16A with it's Y21 tranny, my all time best is 38 mpg, and 43 mpg with my D16Y7 in my 4-door.

egsleepercivic

x2 I get 35+ on the hwy in 5th doing 80mph on 600 mile road trip with a jdm b16a and trans, I don't know why everyone thinks it's so bad on the hwy, the rpms are high but thats the way this motor is designed to run, unless you have a loud exhaust b16's are great on the hwy

grumblemarc

iTrader: (4)

If what you're claiming is accurate then you are only getting a little over 3 miles a gallon (3.33)? That's approaching the mileage of an M1 tank!

93egSLEEPER

how do you figure that? My turbo LSV w/ S4C tranny got 27mpg city and 34 highway, and Im not a light footed person. Shorter gears around town will get good gas mileage, hell up to 65mph on the freeway your still sitting pretty.

D Griff

Get gas and divide the mileage you've driven since your last fill up by how many gallons you put in to determine your actual mileage. I've never heard of a Civic getting 4 MPG or an anything like that. Even when I autox I get in the high 20s although I'm rocking a D series.

93egSLEEPER

My chevelle gets 4ish and its got a 800cfm carb and HUGE cam.

hondafreak95

I'm wondering as well what could it be, check your cluster like some guy said befor.

j4s0n1337

I changed the fuel filter a week after I swapped my B18b and it made a pretty noticeable difference.

znoj

JDM EG6 b16 35mpg
for JDM EG4 D15b Vtec 48mpg

city driving only with on aircon and slight heavy traffic condition