ecconomy

lethalwithasupra · 10-13-2005, 07:22 AM

ok i know that's a new word to most supra owners, but try to follow me here. umm ... about 260k on a full-ish tank of 96. that's around town and from home to work, mostly cold starting and frequent stops. before the head gasket it did about 450k on less than half a tank havn't taken it on a decent trip that doesn't involve massive hills and twisty roads.

what do you guys get out of yours ?

supra_91 · 10-13-2005, 09:33 PM

i go 275 miles on about 14 gallons.....about 19 to 20mpg

suprra_girl · 10-14-2005, 12:47 AM

wow you are going thru some petrol

going by the usage on ours we get 8.9k to a litre, so working on our 70l capacity we should get 600 odd km out of a tank (granny driving) like no boost, no more than 10mm depression on the pedal LOL

have you done a diagnostic?
is your 02 sensor plugged in?

mrnickleye · 10-14-2005, 01:08 AM

I keep a close watch on my mpg. I get 15 city, 20 hwy, a/c on. Runs perfect (I mean like new off showroom), new everything. Was getting 17 - 22 before HG was done.

lethalwithasupra · 10-14-2005, 08:28 AM

heh yea i get a few fault codes every time i check. o2 sensor ... hope so. ill check, always get 51 as a fault code. might check for others tomorow. also think i have a leak in my vaccum systemwhat with all the old hardened and cracked pipes in there. another job for tomorrow. might spray paint WIP on the spot where i usually park my car at work ...

but that's not actually " bad. "
" bad " is when you fill your car up with $60, drive to work and back a few days during the week and get 88 km out of half a tank ( yea that's right. it used to be worse. try 190 ks ? ). now take that same car, with the half tank of gas remaining, and go to christchurch. drive round, race, have fun. 400 km out of that half tank and it was still above empty when i filled it up.
that was pre-bhg, and it kinda floored me. long high speed roads i guess. gonna take it up to christchurch some time soon and see what happens.

suprra_girl · 10-14-2005, 09:51 AM

check out your tps that's code 51 i believe

fix all boost leaks
that will use more fuel

and are you sure you arent actually leaking fuel?

SupraMan1784 · 10-14-2005, 01:52 PM

i get around 22mpg highway...16 city...but then again i have a 2.5L..but thats when i put the boost way down...and i roll speed limit or lower..which actually has been the case the past few days...havent driven hard in a while..probably drift in the rain this weekend...yaayy

lethalwithasupra · 10-16-2005, 04:44 AM

o2 was unplugged. know when i did it too - there was this huge leak under the turbo pipe where i had left this tiny hose off, had ta take a few things out of the way to put it back.

im gna do an ecconomy run. first of 10 bars on my cool digital dash went out at 50 kms. looking good

suprra_girl · 10-17-2005, 12:18 PM

ah hah

boost leak = running rich
unplugged 02 = running richer again

we found that by unplugging the 02 sensor it actually made the car run richer by a whole point
i.e. normal air fuel ratio is 14.7
with 02 unplugged it was now 13.0

would definitely start going thru fuel hehe

roadtalontsi · 10-18-2005, 10:32 PM

what do you guys typically get on the highway. I realize milage, mods, and tunes are going to cause a big variance. Like if you were cruising 80 (what rpm are you seeing) in a mach IV for an hr what would you expect like 27mpg? or is that being un realistic

10-13-2005, 07:22 AM	#1
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	ecconomy ok i know that's a new word to most supra owners, but try to follow me here. umm ... about 260k on a full-ish tank of 96. that's around town and from home to work, mostly cold starting and frequent stops. before the head gasket it did about 450k on less than half a tank havn't taken it on a decent trip that doesn't involve massive hills and twisty roads. what do you guys get out of yours ? __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

10-13-2005, 09:33 PM	#2
supra_91 Lexus & 550's Join Date: Sep 2005 Location: Illinois Posts: 521	i go 275 miles on about 14 gallons.....about 19 to 20mpg __________________ 91 N/A automatic supra;K&N FIPK;2.5" custom exhaust;no cat;pacesetter header;eibach springs;tokico "blues";MKIV TT rims

10-14-2005, 12:47 AM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	wow you are going thru some petrol going by the usage on ours we get 8.9k to a litre, so working on our 70l capacity we should get 600 odd km out of a tank (granny driving) like no boost, no more than 10mm depression on the pedal LOL have you done a diagnostic? is your 02 sensor plugged in? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-14-2005, 08:28 AM	#5
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	heh yea i get a few fault codes every time i check. o2 sensor ... hope so. ill check, always get 51 as a fault code. might check for others tomorow. also think i have a leak in my vaccum systemwhat with all the old hardened and cracked pipes in there. another job for tomorrow. might spray paint WIP on the spot where i usually park my car at work ... but that's not actually " bad. " " bad " is when you fill your car up with $60, drive to work and back a few days during the week and get 88 km out of half a tank ( yea that's right. it used to be worse. try 190 ks ? ). now take that same car, with the half tank of gas remaining, and go to christchurch. drive round, race, have fun. 400 km out of that half tank and it was still above empty when i filled it up. that was pre-bhg, and it kinda floored me. long high speed roads i guess. gonna take it up to christchurch some time soon and see what happens. __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

10-14-2005, 09:51 AM	#6
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	check out your tps that's code 51 i believe fix all boost leaks that will use more fuel and are you sure you arent actually leaking fuel? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-14-2005, 01:08 AM	#4
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	I keep a close watch on my mpg. I get 15 city, 20 hwy, a/c on. Runs perfect (I mean like new off showroom), new everything. Was getting 17 - 22 before HG was done.

10-14-2005, 01:52 PM	#7
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	i get around 22mpg highway...16 city...but then again i have a 2.5L..but thats when i put the boost way down...and i roll speed limit or lower..which actually has been the case the past few days...havent driven hard in a while..probably drift in the rain this weekend...yaayy __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

10-16-2005, 04:44 AM	#8
lethalwithasupra 3" Exhaust Join Date: Sep 2005 Location: south cantebury Posts: 112	o2 was unplugged. know when i did it too - there was this huge leak under the turbo pipe where i had left this tiny hose off, had ta take a few things out of the way to put it back. im gna do an ecconomy run. first of 10 bars on my cool digital dash went out at 50 kms. looking good __________________ So I bought this old Honda bike, an NSR250. Bit of a street racer, I guess. I'm told they're fast. Delivering it home with a friend driving the Supra for the first time. I drop gears and make a scream from the twin pipes flowing down this pony's flanks and it takes off like it's tail's on fire. I look back when the Honda gets to its tap-out and the Supra's only two lengths behind. No one I've let ride my bike has told me its slow, they've all loved the thing. That car is a good thing indeed.

10-17-2005, 12:18 PM	#9
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	ah hah boost leak = running rich unplugged 02 = running richer again we found that by unplugging the 02 sensor it actually made the car run richer by a whole point i.e. normal air fuel ratio is 14.7 with 02 unplugged it was now 13.0 would definitely start going thru fuel hehe __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

10-18-2005, 10:32 PM	#10
roadtalontsi Stock Join Date: Oct 2005 Posts: 2	what do you guys typically get on the highway. I realize milage, mods, and tunes are going to cause a big variance. Like if you were cruising 80 (what rpm are you seeing) in a mach IV for an hr what would you expect like 27mpg? or is that being un realistic

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