who has gotten the best gas mileage (LT1)?
10-09-2007, 10:06 AM
#46
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Join Date: Aug 2003
Location: Detroit
Posts: 2,926
.2 is extemely liberal. I know if both my cars once it shuts off I can get almost another 3/4 gallons in there. Im not saying good gas milage isnt possible but 33+ is a little out there..... next time your doing the fill ups video tape the filling procedure, gallons and miles and do the same once you refill again. plus do it at the same gas station to get accurate results... thats the only way ill even remotely believe it......
10-09-2007, 10:10 AM
#47
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Join Date: Aug 2003
Location: Detroit
Posts: 2,926
I was stock with a 6speed an 3.42 gears and the best I EVER got was 27 and Im in a thirdgen which should be lighter than most 4ths. I was running a 97 OBD2 sequential setup but have since switched to an OBD1 PCM so Im pretty sure that changed it back to bank firing.
the fact that many people including myself get the best mileage at or above 80 mph backs that up even further. most vehicles start guzzeling above 70.
Last edited by JoeliusZ28; 10-09-2007 at 10:16 AM.
10-09-2007, 11:30 AM
#48
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Join Date: Jun 2007
Location: Oklahoma
Posts: 91
Thats almost impossible. Unless you drove around 50 mph. Sure you calculated right? My car has K&N FIPK, Hooker Aerochamber, running 91 octane and i have never gotten any better than 23 driving 65 mph ..... w/ 2.73's
10-09-2007, 11:36 AM
#49
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Join Date: Aug 2003
Location: Detroit
Posts: 2,926
also, i only run 93-94 octane. i wont even use 92. also as ive said before, i get my best mileage about 80mph. 50 would be worse, in fact 50-55 is probably the worst speed range for a 6 speed car: too fast for 5th and too slow for 6th.
10-09-2007, 11:54 AM
#50
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Join Date: Oct 2004
Location: las vegas
Posts: 1,130
i got roughly 29.5 mpg on the freeway at 85 cruise from vegas to fresno,452 miles to the tank and i promise you the tank was EMPTY when i got there!
my mods are simple:
CAI
STOCK MANIFOLDS
TRUE DUALS,X-PIPE 2.5",1-CHAMBER FLO's
ALUMINUM DRIVESHAFT
C6 WHEELS 19X10.5 & 18X8.5
LS1 BRAKES
SYNTHETIC FLUIDS
NO CUSTOM TUNE
RUNS 13.86-14.1 2400'-3200'DA VEGAS HEAT!
my mods are simple:
CAI
STOCK MANIFOLDS
TRUE DUALS,X-PIPE 2.5",1-CHAMBER FLO's
ALUMINUM DRIVESHAFT
C6 WHEELS 19X10.5 & 18X8.5
LS1 BRAKES
SYNTHETIC FLUIDS
NO CUSTOM TUNE
RUNS 13.86-14.1 2400'-3200'DA VEGAS HEAT!
Last edited by 96m6lt1; 10-09-2007 at 11:57 AM.
10-09-2007, 12:19 PM
#51
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Join Date: Jan 2001
Location: Orlando,Fl
Posts: 2,905
I have to say Im with Car Enthusiast, theres no way your getting 33mpg and 35mpg. you had to have skrewed up when you filled up. Ive seen my friend do it in his honda. he filled the car to where it automaticly turns off the pump, then kept "topping" it off untill it was coming out the filler tube. then drove 400 miles and refilled. but when he refilled he simply stopped filling once the pump autmaticly shut off the nozel, no topping off. this will EASILY throw your results off.
The only way to get true mileage is to run the car outa gas and then poor in a known amount and run it outa gas again.
36mpg is laughable especially at 100+ lol I about fell outa my chair when I read that. Im betting most of you are getting around 28 MAYBE 30 but thats it, the rest of the "fluff" is in the fill procedure or your just swinging your E-****
The only way to get true mileage is to run the car outa gas and then poor in a known amount and run it outa gas again.
36mpg is laughable especially at 100+ lol I about fell outa my chair when I read that. Im betting most of you are getting around 28 MAYBE 30 but thats it, the rest of the "fluff" is in the fill procedure or your just swinging your E-****
Sorry to say, but you are wrong... I fill my car up the same exact way every fill-up... Maybe my mathematic skills are not up to par and maybe you can do the math for me, what is 357 divided by 10.023?
10-09-2007, 12:37 PM
#52
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Join Date: Jan 2007
Location: Lansing, MI via Bowling Green, KY: Dalton, GA: Nashville, TN & Atlanta, GA
Posts: 1,026
My math skills are pretty solid and I believe that would work out to around 50 mpg.
My car used to get upper 20's on the interstate. And I always had 5-6 hoes up in there. It would be nice to experience an increase in mpg after I do my exhaust.
My car used to get upper 20's on the interstate. And I always had 5-6 hoes up in there. It would be nice to experience an increase in mpg after I do my exhaust.
10-09-2007, 12:40 PM
#53
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Join Date: Nov 2005
Location: Nashville, TN
Posts: 840
or maybe you miss read your odometer and you actually travelled 257 miles which is a more believable yet still not possible in my book of 25.7 @ 100+ mph. I will wager my car that you cant reproduce those numbers. ill even let you drop the speed to a more reasonable average of 85mph. you prove it and my car is yours........
10-09-2007, 01:56 PM
#54
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Join Date: Dec 2005
Location: FL.
Posts: 52
Speedo could be off. 
Thats my guess. My stock LS1 98 Z28 Auto 2.73 gear car barely got 30 MPG on the highway. And that is an LS1 which gets better milage than LT1's. My LT1 on a killer day at its best is still right at 28 MPG highway. That doesnt happen to often.
Thats my guess. My stock LS1 98 Z28 Auto 2.73 gear car barely got 30 MPG on the highway. And that is an LS1 which gets better milage than LT1's. My LT1 on a killer day at its best is still right at 28 MPG highway. That doesnt happen to often.
10-11-2007, 07:07 AM
#59
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Join Date: Feb 2007
Posts: 293
Tricked-Out-Toy - NICE RIDE!
sam Pace-
I tried driving like a schmoe in a Honda for a full tank (you know, egg under the accelerator thing, wasn't fun) It really didn't change much. One thing I did notice.
No ac, about 210 miles and one gallon left at fillup
A/C on I got about 190 miles and had 1 gallon left at fillup
After running AC on the previous tank, and no AC on the current I would get 230 with one gallon left. 245 with the car sputtering to the pump
I get about 70 miles before the needle gets to the full mark, then after that it gets to 125 at 3/4 mark, then 160ish when I get to half. After that I get to 185 at 1/4. then I get paranoid and find a gas station.
sam Pace-
I tried driving like a schmoe in a Honda for a full tank (you know, egg under the accelerator thing, wasn't fun) It really didn't change much. One thing I did notice.
No ac, about 210 miles and one gallon left at fillup
A/C on I got about 190 miles and had 1 gallon left at fillup
After running AC on the previous tank, and no AC on the current I would get 230 with one gallon left. 245 with the car sputtering to the pump
I get about 70 miles before the needle gets to the full mark, then after that it gets to 125 at 3/4 mark, then 160ish when I get to half. After that I get to 185 at 1/4. then I get paranoid and find a gas station.
10-11-2007, 11:55 AM
#60
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Join Date: Jul 2006
Location: shelton, CT and Morgantown, WV
Posts: 150
357/10.023 is not 50mpg buddy, its about 35mpg.
when i towed my trucks bed behind my car and my car loaded down iwth crap back to school at the beginning of the semester after doing my headers, tune, and ORY i only got 16mpg highway. it seriously felt like i was towing a parachute behind me, because normally going down one hill on I68 if i put it in neutral at 80 ill accelerate to about 95 pretty easily, with the trailer, i slowed to 65! i did a trip tuesday to court down I79 through the mountains and got 27mpg. i think the added power from the headers/ORY/tune, and pulley helped though cuz i no longer ever have to downshift from 6th through the mountains. i think thats the main reason everyone is getting better mpg after header install.
oh and the result from the trip to court, was fighting a ticket of 91mph in a 60 and a $256 fine, cop didnt show so it got dismissed!
when i towed my trucks bed behind my car and my car loaded down iwth crap back to school at the beginning of the semester after doing my headers, tune, and ORY i only got 16mpg highway. it seriously felt like i was towing a parachute behind me, because normally going down one hill on I68 if i put it in neutral at 80 ill accelerate to about 95 pretty easily, with the trailer, i slowed to 65! i did a trip tuesday to court down I79 through the mountains and got 27mpg. i think the added power from the headers/ORY/tune, and pulley helped though cuz i no longer ever have to downshift from 6th through the mountains. i think thats the main reason everyone is getting better mpg after header install.
oh and the result from the trip to court, was fighting a ticket of 91mph in a 60 and a $256 fine, cop didnt show so it got dismissed!