The "NOT SO GOOD" gas mileage thread

Supra-Man18

New Member
Nov 24, 2007
357
0
0
miami
Boosted516;1386737 said:
i get 12 mpg city on a good day and im basically stock

O fuk >.< May god be with you ... lol :aigo: I just bought my new o2 and sum lucas fuel injector cleaner... Gonna do handle this tomorrow, Then swap ecu's and see if anything is what is shouldnt be. Ill fill you guys in.
 

Supra-Man18

New Member
Nov 24, 2007
357
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miami
WOOOT PROBLEM SOLVED :D !!! My ecu had 3 Leaky capacitors.. And the injectors were staying open, My motor Literally LOCKED up and didnt want to crank or do anything i even had fuel coming out of the exhaust : / got the ecu rebuilt the same day, got all that fuel out the motor and voila ! Ill update how this affects my mileage on my next full tank :D
 

Gunnar

New Member
Jul 11, 2008
116
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0
Belgium
www.chiptuners.org
7M-GTE automatic, 3 inch exhaust with testpipe, 550cc's, afpr and lexus afm, 57-trim turbo, intercooler kit , open hks ssqv. All this at 15 psi boost and around 0.82 lambda under load. 245 tires front and rear. (yes tires matter a lot)

18mpg driving along with the rest of traffic.
13mpg when i pretend everyone on the road is trying to race me.
 

Supra-Man18

New Member
Nov 24, 2007
357
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miami
10secdream;1391897 said:
I am sure that will fix the fuel economy drastically. I guess you never had a wideband to realize it was running so rich?

Your actually right...I have one in the box sitting here.. but i dunno where to mount the gauge. it would have saved me sum time and cash.
 

becauseican

Supramania Contributor
Mar 31, 2005
1,451
0
0
Vancouver
www.bicperformance.com
Wow these milage stories suck. I get 400 kms per tank average ( 250 miles), and have gotten up to 550 kms (343 miles) on hwy trips, and this is with 780cc injectors running sequential with a Haltech PS 2000. Although if I go racing or do lots of boosting or tuning, I have gotten as low as 200 kms (125 miles). Sorry too lazy to figure out the MPG.....
 
Dec 3, 2003
6,653
0
0
Canada
Get a commuter car for miles per gallon, the Supra is smiles per gallon. ;)

On a better note, I get over 200miles per tank on my car!! lol

Duane
 

Supra-Man18

New Member
Nov 24, 2007
357
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miami
upgradedsupra;1392125 said:
Get a commuter car for miles per gallon, the Supra is smiles per gallon. ;)

On a better note, I get over 200miles per tank on my car!! lol

Duane


Damn.. makin me n my 1jz feel shitty..lol
Isnt that on like 1200cc injectors also ???
 

di_rosa

never ending project ...
Apr 2, 2005
215
0
0
toronto
damn, you guys are killing me. i BARELY get 300 per tank, and thats with 18's, a 3.73 and me barely boosting............even on the highway, my mileage isn't that much better, like 350 per tank. i even drove around town logging with my afr (no boosting), and my afr never dropped below 14.2:1 at part throttle or cruise. ah, what a scam.
 

nytefire

Supramania Contributor
Jun 14, 2006
69
0
0
Virginia
Just did 308 miles to the last tank, filled up yesterday and she took 15 gallons.

This is with stop and go traffic to and from work.
 

RacerXJ220

Interdimensional
Mar 30, 2005
1,504
0
0
Abalama
Raise your compression + large turbo = awesome street/boost characteristics. Done right for 93 it's strong off boost.

Who doesn't use meth anyway after 500whp or so these days?

E85 sombishes
Race ful mofobishes

I wish we had E85...............................................
 

10secdream

Got Boost?
Sep 11, 2007
767
0
0
36
Edmonton, Alberta, Canada
RacerXJ220;1393410 said:
Raise your compression + large turbo = awesome street/boost characteristics. Done right for 93 it's strong off boost.

Who doesn't use meth anyway after 500whp or so these days?

E85 sombishes
Race ful mofobishes

I wish we had E85...............................................

Sigh I wish we had it too.
 

supra1008

Active Member
May 2, 2007
1,179
0
36
Philadelphia
I've gotten 28mpg on mine before driving down to DC. I only used a quarter of a tank. That's also doing 90mph and boosting the whole way down. I wonder if I slowed down a bit one day. Maybe this time I'll do 60-70mph! hehe
 

Supra-Man18

New Member
Nov 24, 2007
357
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miami
YES ! The Fix Was successful ! I got 87 miles to a quarter of a tank BOOSTING MY ASS OF... At least 50 of those 87 were boost miles :D ! Excellent !!!
 

Supra-Man18

New Member
Nov 24, 2007
357
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0
miami
viperkillertt;1395623 said:
over the last 5 fill ups, i have got between 15.5 and 16.5 MPG. I have got 24 going 55mph over 300 miles from Spokane to Seattle.
Stock twins with big intercooler. 3.73 rear diff. Sadly i always expected much better fuel economy. One of the big reasons to switch to a 1jz :(

It gets better when u go single.. Given the fact you've tuned up your car etc.