whats everyones gas mileage? i have a 98 b18c1 motor, skunk2 IM, aem cai, dc sports header w/ a chipped p28 ecu and vafc... i get about 250 when i usually fill up and put in about 10 gallons of gas remember i got an 11.9 gallon tank on my si.

im driving down to atlanta next week for the holidays and im looking to save some money on gas and get some relativly good gas mileage.. i have a kenji ITR spec ecu chip in there now.. i want to lean out the fuel using my vafc for when im cruising down I95 im in 5th gear going 80mph @ 4000rpms.. is is safe to lean out the motor like this? i have a autometer a/f guage so it will help a alittle.. anyone ever take there project car on road trips and hate the gas mileage? help! thanks

 

i get about 250/ tank on the highway. but my tank only holds 10 gal (cx) and i usually fill up around 8-8.5 gal. so i average 30mpg on the hwy, 20 city. b16 with i/h/e, chipped p28 to stock p30 spec

 

I drive a Silverado. Consider yourself lucky. I go through about $200 a month in gas.

 

throw on the stock airbox.

 

I want to know this too, I'm getting some shotty gas mileage with my p28 w/ skunk chip. Cruising at 4k going 70 just eats the gas.

 

When was the last time you did a tune up; plugs, wires, cap/rotor, fuel filter? I'm guessing your ECU is making you run rich. I don't have experience with a VAFC. I'm sure someone can answer your question.
I'd get your car on the dyno when you get a chance..

 

JUN Head, JUN ECU, OBD1, B16
Honestly, I put in about 10 bucks a day.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00MRSi &raquo;</TD></TR><TR><TD CLASS="quote">When was the last time you did a tune up; plugs, wires, cap/rotor, fuel filter? I'm guessing your ECU is making you run rich. I don't have experience with a VAFC. I'm sure someone can answer your question.
I'd get your car on the dyno when you get a chance.. </TD></TR></TABLE>

just replaced the plugs, changed the oil, and fuel filter is on the list to be done before i go... as for the wires and cap/rotor how do i tell if they need to be replaced? the motor only has 56k miles on it? is it time? and yes the ecu is causing it to run VERY rich at times specially when im driving hard in vtec the car smells funny! im waiting to get the car on a dyno till next spring cause im not sure what mods i will over the winter.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SLeePeR012 &raquo;</TD></TR><TR><TD CLASS="quote">JUN Head, JUN ECU, OBD1, B16
Honestly, I put in about 10 bucks a day.
</TD></TR></TABLE>

that sux bro, sorry to hear that!

also i did get 3 chips from kenji when i got my ecu chipped, what chip would run the best for highway driving? i have a kenji spec ITR chip, Vison chip, and J's Racing chip!

and anyone know the answer to the question? can i lean out the motor w/ the vafc at high rpms so i can get better gas mileage on the highway???

 

I drive a 2000Cx and I get 250 miles on a full tank easy...i could probably push to around 265-270. I would try a tune up...which was already suggested.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phillycx &raquo;</TD></TR><TR><TD CLASS="quote">I drive a 2000Cx and I get 250 miles on a full tank easy...i could probably push to around 265-270. I would try a tune up...which was already suggested. </TD></TR></TABLE>

is that highway miles? or city miles? ive gotten more on highway but i know this trip will be a test!

 

Stock airbox for sure.

Just curious, what part of ATL you coming to visit?

 

got family all around the atlanta... i forget the name of the citys now its been about 4 years since ive been down there.. gwientte? conyers, covington and a couple other places..

what part of atl are you from?

*edit* dont ahve the stock airbox even if i did it was a for a d16 not a b18 like i have now

 

damn, so I guess all of us that get 250 miles to the tank with our B-Series motors is normal?

 

you should be getting better than that. I have ITR mani, CAI, with a PYR OBD 1 and i usually get about 315-340 per tank on the hwy with my b ****-teen

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00 Hatch DX &raquo;</TD></TR><TR><TD CLASS="quote">damn, so I guess all of us that get 250 miles to the tank with our B-Series motors is normal?</TD></TR></TABLE>

i have a 10 gallon tank tho -&gt; 30mpg is pretty good for ~4400 rpm @ 80mph. (~250 effective hwy range)

 

I get about 330-350 to a tank.. 11gallon or so? 92 si. B18c1 i/h/e.
65-75mph all highway driving.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkyeC &raquo;</TD></TR><TR><TD CLASS="quote">I get about 330-350 to a tank.. 11gallon or so? 92 si. B18c1 i/h/e.
65-75mph all highway driving.</TD></TR></TABLE>

That is really good, I get about 230 to a tank in my 92 si with I/H/E and a katman chipped ECU. Maybe my timing is off.

 

dam i dont have an answer to your question but
iam happy that i get about 370-400 mph with mix of highway and city driving

but i got a **** box d16 and anyone of you will take me in a race
be my friend man and cruz with me LOL

 

ya same here but i on't think a d16 is a **** box i luv it and has some potential but others wise i get about the same gas mileage in my si, and i only spent 13 dollars to fill it every month

 

lol yea, i got around 400 to the tank on my d16. Is the Si gas tank bigger than my DX gas tank? If the DX is smaller, that's prob why I'm gettin around 250 then?

 

what does you a/f gauge read now on the highway at 4000rpms
take some fuel out and watch gauge make sure you don't run too
lean. take fuel out untill it starts running lean.
I have a chipped p28 was getting 21 mpg took fuel out on a trip
got 29-30mpg. took around 20% fuel out.
try that

 

Reset your ECU before you go.

After you reset your ECU your MPG should always increase!

Too lazy to explain...

 

use cruise, it automatically makes you run leaner. also, why is everyone suggesting stock air box? i got +2mpg when i put on my intake, but i also reset the ecu... how does that give more mpg?

edit: someone please correct me if i'm wrong about the cruise, but doesn't the ecu make your engine run leaner when using cruise control?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Philip &raquo;</TD></TR><TR><TD CLASS="quote">use cruise, it automatically makes you run leaner. also, why is everyone suggesting stock air box? i got +2mpg when i put on my intake, but i also reset the ecu... how does that give more mpg?

edit: someone please correct me if i'm wrong about the cruise, but doesn't the ecu make your engine run leaner when using cruise control?</TD></TR></TABLE>

With a honda, no. Not that I'm aware of...

 

CRUISE control is not working, thats another shitty thing, my cable reel needs to be replaced so its its not working along w/ my horn and srs!