hi, on a 2003 g35 coupe, if a vortech supercharger is added approx how much more gas will it take? what kind of mpg's are you guys getting with your superchargers

 

A lot of gas will be used,

 

LOL give me an estimate :| this is gonna be ma daily driver lol, now im scared

 

Daily equals 10- 13 on a good day, but expect single digits except on long stretches of freeway!

 

ahhh great, just what i neeeded, now im not sure if i should buy that supercharged car :|

 

i got 2 more mpg being vortech'ed than i did being NA. just a thought. so i got like 22 mpg with my vortech. and i get 20 now without it.

are you using fmu and external inline fuel pump or are you using a FRS with different injectors and pump and utec or something?

 

^^ ya technically thats not possible, but either way.

i get around 13 mpg around town and ~17 on the hwy.

 

^^ Either that or he's running super lean... my mpg's went down the toilet after the TT install. I don't even watch it anymore...lol

 

Are you using your Navi to estimate this? Nav is not going to be accurate once you mofied your fuel system because your injector is going to be bigger or if you have a stock injector and FMU then fuel pressure is different. You guys are lying to your self if you believe you get more mileage with FI!! If you are not boosting then maybe but if you are on boost then there is no way in hell because your A/F alone is going to be in the 11's and there is also more air being pumped in the motor.

OP, gas mileage is the last thing you should worry about with FI!!! If that is your main concern then go get a 4cyl civic!!

 

I lost about 4MPG average.

 

it all depends on how you drive it. i had the fmu with external inline fuel pump. so not being in boost, i got 22 mpg. this is estimated by miles driven divided by amount of gas pumped in gallons. if i had a FRS or bigger injectors it will all change. i kept everything stock. just added the vortech FMU and inline pump and got great gas mileage.

 

why worry about something so minor...gas is cheap for the time being..if it goes up to 4.00/gal. sell the kit,or get a honda dd...problem solved.

 

yea. if youre worried about gas mileage, dont go FI. i miss being vortech'ed but now im going TT. this time i will definitely not get 22 mpg like i did with vortech's fmu.

 

i get btwn 8-14 mpg depending how i drive it

if you dont like that, get a hybrid!

 

I dont even bother looking I am sure it is around 10mpg