LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Gas Mileage

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Old 02-09-2006, 06:45 AM
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Nice setup Ellis, can't wait to see what that thing will do...
Old 02-09-2006, 12:09 PM
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Originally Posted by 97Birdofprey
I'm getting 180-200 miles on a full tank in my '97 T/A. Hardly any freeway driving though. I hate how fast the guage goes down after half tank!!
ya it sucks big time!! i never let it go pass 1/4 tank
Old 02-09-2006, 02:35 PM
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Originally Posted by slowmofo
Nice setup Ellis, can't wait to see what that thing will do...
Thanks! I can't wait either
Old 02-09-2006, 02:41 PM
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I just did the math for mine and on a full tank I get around 250-260 miles, basically around 20-22ish miles per gallon rougly on average.
Old 02-09-2006, 09:46 PM
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I'm getting about 20-24 on the highway/interstate, but I do very little highway driving. I hate to even think about my in town driving, it's... well... spirited, and I get around 13-16. Oh well, gotta pay to play.
Old 02-10-2006, 02:29 AM
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last tank 158 miles

i think there is something wrong with my car though
no highway but i have 4.10s and a m6
Old 02-10-2006, 02:49 AM
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I was getting 13-15 mpg in a blown 350ci LT1 on 42 lb/hr injectors and 10psi peak... that was driving conservatively though.
Old 02-10-2006, 10:33 AM
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ive got an a4 with a 3000 stall, 3.73s, mid tubes, high flow cat, sraight pipes from cat back and a cai and i get 20 in the city and about 24 on the highway. and i have a horrible tune because of the computer gettin fried on the one ive got now and havin to use the one off the wrecked car. but im bout to put my hot cam in so what do yall think thats gonna to my gas mileage? keep in mind when i tune it its gonna be for the street mainly but track capable. 12s is the goal for now and its lookin real good. im not far off now with a 13.2 so i figure the cams and tunes gonna do it.

edit: where i live the speed limit is 35 but i spend most of my time driving down #1 and i only really drive my car from home to school= 4 miles going 45 mph and to work=also 4 miles going 45. other than that i live out in the boon docks and i can go 55 everywhere out there. its kind of a small town so i get the decent gas mileage from that. i think the lowest ive ever gotten is 15 with a heavy foot.

Last edited by borninatransam; 02-10-2006 at 10:39 AM.
Old 02-11-2006, 02:28 AM
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14.5 MPG With abusive/ spirited city driving.

20 MPG If I use the skip shift and do a combo of highway and city driving.
Old 02-11-2006, 10:18 AM
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Full City driving I get about 13mpg. Tahts w/ a full tuneup. I do go WOT at leaste once a week tho.
Old 02-11-2006, 10:21 AM
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Originally Posted by 95formulalt1
ya it sucks big time!! i never let it go pass 1/4 tank
I found that at 1/4 you have roughly 2 gallons left.
Old 02-11-2006, 11:01 AM
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Originally Posted by 93formulabird
I found that at 1/4 you have roughly 2 gallons left.
really that blows!!!
Old 02-11-2006, 02:34 PM
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the best i've got was 16,usually get from 12 to 15 but lately i get like 9 or 10. i've always drove it pretty conservatively but with the oil leaks and messed up o2's it's been low. this is about half city half hwy. after i get everything fixed and get it tuned i would be happy to see 16 again. by the way it's an a4, lt4 hotcam and heads, 2.73's(about to be 3.42's), msd, hooker lt's, 3"flows, and a few other small goodies.
Old 02-11-2006, 06:56 PM
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when mine hits E i have 2 gals left.



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