HI, im new... quick question..

[boostfedsx]

sorry my first post had to be a question, but i just got done swapping a Neo 6 into my s13... and the only gripe i have is i get horrible gas mileage... what are some of you guys getting with your rb25s? maybe i can compare... i searched and could come up with any definitive answers..

i get about 120 (if im lucky) to a full tank everything is stock except for a filter and axhaust.

im thinking it could be because i dont have an adjustable FPR, but i couldnt find a post that confirms my assumption.

my car drives/boost/idles PERFECTLY. so im not sure on why its eating soo much gas

[Valley]

i vaguely recall a post about this in the past but am to lazy to search myself this early in the morning. umm... lead foot?

nevermind... i did a search in the rb section for a thread topic called "gas milage"

it returned this

zerothread?id=113126

survey says...

you have a lead foot.

[boostfedsx]

well i admit my first tank i did have a lead foot.

but now im on my second tank... not boosting, staying in vaccumm. and its the same thing.

*also with anyone with a boost gauge, what where does your vaccumm sit?

[silent dave]

my gauge says 16-17 at idle when warm.

[Shocker]

if your worried about gas mileage what are you doing thinking of an rb240? toyota makes some crazy high mileage vechicals now a days you know.

[Vkoslak]

what fuel pump are you using? it may be overpowering your fuel pressure regulator.

Is your fuel system sealed properly? as in when you take the gas cap off, there is pressure escaping. If not, your gas could be evaporating.Mine hasn't sealed after I replaced fuel pump. I will need to fix that soon.

[boostfedsx]

if your worried about gas mileage what are you doing thinking of an rb240? toyota makes some crazy high mileage vechicals now a days you know.

nice answer bud..

anyways... im not really worried about it... its just that i get worst gas mileage with my rb than i did with my SR with a bad coil pack, bad 02, and a leaky injector... i would have thought being stock it would at least be a little better.

vkoslak, im using the walbro 255lph...im thinking it could be that because my FPR is still stock.... just wanted to see some opinions or some solid proof.

[sxcoupe]

vkoslak: how do you fix that, i had my feul pump changed. to and before when i opened gas cap there was nice sound. now there is nothing and i also think gas is vaperizing. but i have stock ka24de. ps did not mean to jack a thread but im dying to know how to fix it.

[boostfedsx]

when you changed your fuel pump, did you make sure the o ring is sealed properly in its perch? (assuming you remembered to put it in..

[sxcoupe]

i had it done at shop, i asked him about it all he said was some times that hapens. not a very good explanation i know.

[Vkoslak]

I was considering putting liquid gasket around my brand new o-ring. :/ I'm using a 300zxTT pump.

Boostfed. I would recomend getting a fpr. I have one, but I blew my turbo right after I put it in so I havent had a chance to see if my fpr made a difference in gas mileage. I was getting about 20mpg before though.

[armysweitzer]

well in my puny 20 i drove to NH ( i live in Southern RI) and back on half a tank of gas. I dont know the exact milage but it was like 2.5 hours each way, averaging 70mph id say. PS i boosted a lot racing other cars, showing off for girls etc.

PS the girl i picked up (GFs friend) says...

"why does it sound like air is whooshing somewhere"

lmao never heard that one before.

But yeah i get good milage driving like a d!ck

[sxcoupe]

just did job today sealed o ring. thing was that the guy i had do the job in the first place. f**kin half **s't it. he put wrong size o ring in. it was just a little to big so it did not sit in right. when i opend the fuel pump the dam thing just about fell in my tank. problem solved now when i open gas cap psssst, ahh the sweet sound of sucsess. now i think i might do a drive by at his shop. f**king a** hole. that goes to show you want it done right do your self.