93 FD only 20mph HIGHWAY?
#1
Full Member
Thread Starter
iTrader: (3)
Join Date: Feb 2010
Location: Chicago burbs IL
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
93 FD only 20mph HIGHWAY?
My fd only gets 20mph highway I was just wondering if there is something wrong with my car or is that pretty normal. When I bought the car I drove it back for about 5 hours all highway driving and it only averaged out at 20mpg's.
Now that I installed a wideband o2/gauge I know it idles at only 11afr which I know is super rich for any regular engine at idle so I'm thinking there could be something wrong. Stock turbos, stock ecu, oh and it doesn't run rich at regular driving with no boost it runs at 14.5afr, 11afr only at idle
ANY HELP, COMMENTS, OR SUGGESTION MORE THEN WELCOMED
Now that I installed a wideband o2/gauge I know it idles at only 11afr which I know is super rich for any regular engine at idle so I'm thinking there could be something wrong. Stock turbos, stock ecu, oh and it doesn't run rich at regular driving with no boost it runs at 14.5afr, 11afr only at idle
ANY HELP, COMMENTS, OR SUGGESTION MORE THEN WELCOMED
#5
T3DoW
iTrader: (10)
I have trekked many many 6 hours drives in the FD which was basically all highway and with the occasion WOT run I bested 23-24mpg with an average of 20-22mpg. This was on a streetport, stock twins, stock ECU (running rich), and basic bolt ons.
there is nothing wrong with your car. A PFC and a tune is basically the only thing you can do to get a better mpg in the cruising area of operation.
there is nothing wrong with your car. A PFC and a tune is basically the only thing you can do to get a better mpg in the cruising area of operation.
#7
I don't know how much i get but, If i fill up about half tank or about 6.2 gallons, (20bucks on premium). And drive for 20 mins, im about at 1/4 of a tank. But my car has lots of mods like exhast, intake, power FC, injectors. 20mpg is pretty good.
whats the stock mpg for the 93 FD. because the car is 17 years old, its gonna start breaking down.
whats the stock mpg for the 93 FD. because the car is 17 years old, its gonna start breaking down.
Trending Topics
#9
¿¿What are pistons??
iTrader: (7)
Join Date: May 2003
Location: Queens NYC
Posts: 1,261
Likes: 0
Received 0 Likes
on
0 Posts
I don't know how much i get but, If i fill up about half tank or about 6.2 gallons, (20bucks on premium). And drive for 20 mins, im about at 1/4 of a tank. But my car has lots of mods like exhast, intake, power FC, injectors. 20mpg is pretty good.
whats the stock mpg for the 93 FD. because the car is 17 years old, its gonna start breaking down.
whats the stock mpg for the 93 FD. because the car is 17 years old, its gonna start breaking down.
My car gets about the same mpg on the highway, it's normal.
#12
Urban Combat Vet
iTrader: (16)
#13
i have been looking into getting some mods for my ignition system. these are "supposed" to help improve your gas milage.
http://www.sunautomobile.com/sunPerformance.html
http://www.sunautomobile.com/sunPerformance.html
#14
needs more track time
iTrader: (16)
i have been looking into getting some mods for my ignition system. these are "supposed" to help improve your gas milage.
http://www.sunautomobile.com/sunPerformance.html
http://www.sunautomobile.com/sunPerformance.html
Most of that stuff has been tried already. Search for past threads on the topic if you like.
#15
Ronald..
iTrader: (1)
Join Date: Aug 2005
Location: Fairfax/Manassas VA
Posts: 2,013
Likes: 0
Received 0 Likes
on
0 Posts
Im still wondering if its better for mpg to stay at a high rpm and low in vacume (4k 13-14vac) or be in fifth at 70-80mph and at a higher vacume the whole time (9-6vac). I was always under the assumption that crusing closer to boosting was a bad thing for mpg. Any insight?
#16
1 of 266 93 Base SSMs
iTrader: (6)
My fd only gets 20mph highway I was just wondering if there is something wrong with my car or is that pretty normal. When I bought the car I drove it back for about 5 hours all highway driving and it only averaged out at 20mpg's.
Now that I installed a wideband o2/gauge I know it idles at only 11afr which I know is super rich for any regular engine at idle so I'm thinking there could be something wrong. Stock turbos, stock ecu, oh and it doesn't run rich at regular driving with no boost it runs at 14.5afr, 11afr only at idle
ANY HELP, COMMENTS, OR SUGGESTION MORE THEN WELCOMED
Now that I installed a wideband o2/gauge I know it idles at only 11afr which I know is super rich for any regular engine at idle so I'm thinking there could be something wrong. Stock turbos, stock ecu, oh and it doesn't run rich at regular driving with no boost it runs at 14.5afr, 11afr only at idle
ANY HELP, COMMENTS, OR SUGGESTION MORE THEN WELCOMED
#17
Senior Member
iTrader: (1)
Join Date: Apr 2001
Location: Orlando FL
Posts: 491
Likes: 0
Received 0 Likes
on
0 Posts
If I kept it at 76ish, ~under 3000rpm I would get wayyyyyyy better gas mileage. Drove from Trussville AL (near Birmingham, where I bought it) all the way to Goldsboro NC on a tank of gas. Mind you I had just bought it and was doing the easy driving associated with getting a new/unknown car home in case there was something wrong with it...
#18
Senior Member
iTrader: (1)
Join Date: Apr 2001
Location: Orlando FL
Posts: 491
Likes: 0
Received 0 Likes
on
0 Posts
I-85 S
599 mi 10 hours 11 mins
Just googled it, I was on the east side of Trussville when I got gas so give or take 5-10miles for the analytical people. the zip code I used for NC was my base.
My car when I bought it had the Apexi intakes, downpipe, hollowed out cat (didnt know at the time) and thats it. i probably weighed 180-185 at the time...
599 mi 10 hours 11 mins
Just googled it, I was on the east side of Trussville when I got gas so give or take 5-10miles for the analytical people. the zip code I used for NC was my base.
My car when I bought it had the Apexi intakes, downpipe, hollowed out cat (didnt know at the time) and thats it. i probably weighed 180-185 at the time...
#19
dorito powered
iTrader: (5)
Join Date: Mar 2008
Location: Lincoln, NE
Posts: 2,839
Likes: 0
Received 0 Likes
on
0 Posts
20s about what I get on the highway, but I like to play around with that gas pedal a little too much even then. on my old FD I saw 26 on all highway once at a consistent 70 mph
#21
rotorhead
iTrader: (3)
The revised EPA fuel mileage using the more realistic drive cycle is 15/23 for a manual transmission car. That's still for a stock car at stock power levels.
Look it up yourself.
http://www.fueleconomy.gov/feg/findacar.htm
Look it up yourself.
http://www.fueleconomy.gov/feg/findacar.htm
#22
Eats, Sleeps, Dreams Rotary
iTrader: (17)
Im still wondering if its better for mpg to stay at a high rpm and low in vacume (4k 13-14vac) or be in fifth at 70-80mph and at a higher vacume the whole time (9-6vac). I was always under the assumption that crusing closer to boosting was a bad thing for mpg. Any insight?
#23
Full Member
Thread Starter
iTrader: (3)
Join Date: Feb 2010
Location: Chicago burbs IL
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
Thanks to all helping, and for the people just trying to talk **** please go else where preferably another forum!
Now I'm not too worried about economy but like I said in my post I want to know if my car runs ok. Best way to know that is to compare data. I got 20mpg all highway, very easy driving just trying to get the car home. No CEL, stock twins, stock ecu, full 2.75" to 3" exaust, magnaflow straight through muffler in place of cat, and pulleys were the only mods at the time. I drive 5th, as I'm pretty sure lower rpms in any engine uses less gas (with lil or no load)
So looks like 20mpg highway isn't bad then so my car might actually be ok
Now I'm not too worried about economy but like I said in my post I want to know if my car runs ok. Best way to know that is to compare data. I got 20mpg all highway, very easy driving just trying to get the car home. No CEL, stock twins, stock ecu, full 2.75" to 3" exaust, magnaflow straight through muffler in place of cat, and pulleys were the only mods at the time. I drive 5th, as I'm pretty sure lower rpms in any engine uses less gas (with lil or no load)
So looks like 20mpg highway isn't bad then so my car might actually be ok
#25
Constant threat
I could get over 20 with my stock engine. My new...er, 'healthier' engine gets about 13 - 17 TOPS.
I made a hell-run the other day, drove about 25 miles and was rarely under 110 mph and got about....8 mpg. Could literally watch the gas gauge fall....
I made a hell-run the other day, drove about 25 miles and was rarely under 110 mph and got about....8 mpg. Could literally watch the gas gauge fall....