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10-11-2005, 07:58 PM | #26 |
Registered User
Join Date: Jan 2004
Location: Oklahoma
Posts: 1,057
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My 63 with a 11.4:1 mrelin "grumpy jenkin" headed 427 with a 1050 dominater and 3.70 gears gets almost 4 mpg with mixed gas...
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Youth soon passes away, but immaturity can last a life time. |
10-11-2005, 08:30 PM | #27 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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16 MPG with 305/700r4 3.08 gears running 255/60R15 tires.
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10-11-2005, 08:46 PM | #28 | |
Born a Chevy Man
Join Date: Apr 2005
Location: Navarre, Florida
Posts: 10,221
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Quote:
Looks like I need to change over to one of them 700r4 transmissions and , 3:08 gears but already have the 255/60R15 tires. 16MPG? That is good.
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John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 *1986 Chevy SWB Silverado *1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS Last edited by 86swb; 10-11-2005 at 08:48 PM. |
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10-12-2005, 01:46 AM | #29 |
BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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16 MPG crusing 70 MPH!!! I get 13.? in the city. In the city I drive in 3rd. The torque converter locks at 1800 RPMs or ~45 MPH. A locking torque converter for city driving from 40-55 MPH is a key element. There are a lot of other factors too. Vinyl bed cover, aluminum wheels, aluminum radiator, electric fans, aero dynamics (yea right), good engine tune, maintenance.......it takes a lot of parts working together. OHHH and a light foot.
Last edited by gchemist; 10-12-2005 at 01:59 AM. |
10-12-2005, 07:10 AM | #30 |
Born a Chevy Man
Join Date: Apr 2005
Location: Navarre, Florida
Posts: 10,221
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Also a good slick wax job.
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John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 *1986 Chevy SWB Silverado *1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS |
10-12-2005, 10:44 AM | #31 | |
Dork For Days
Join Date: Aug 2005
Location: Dallas
Posts: 407
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700R4 vs. 3.08 gears
Quote:
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10-12-2005, 01:39 PM | #32 |
Born a Chevy Man
Join Date: Apr 2005
Location: Navarre, Florida
Posts: 10,221
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Why would the 3:08 gears hurt you in the city? Do not understand.
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John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 *1986 Chevy SWB Silverado *1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS |
10-12-2005, 03:17 PM | #33 |
Still drivin' a Rat Rod
Join Date: Sep 2004
Location: Monett Missouri
Posts: 4,925
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Haven't checked my mileage.It's not good though.350,flat tops,and a 4 speed and a size 16 on the pedal,can't be good
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Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the *a$#* 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website |
10-12-2005, 04:13 PM | #34 |
Stepsides RULE
Join Date: Jul 2004
Location: Pineville, LA
Posts: 1,921
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10-12 city, 12-15 highway.
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1981 Chevy C10 Custom Deluxe Stepside 350 V8, headers, side exhausts, 3-speed auto SOLD 1980 Chevy C10 Custum Deluxe Stepside 305 V8, Edelbrock Performer Intake, Edelbrock 1406 600CFM 4-barrel, TH350C. Bent rod. SOLD 1984 GMC Sierra Classic Longbed 6.2L Diesel SOLD 2009 Kawasaki KLX-250S too many mods for this signature 1999 Honda Accord EX 4-cylinder, 17" Motegi Wheels 215/45/17 Sumitomo tires, Tein S-Tech lowering springs, KYB GR2 shocks, Acura TL 20mm rear swaybar, debadged, blackhoused headlights, Short-Ram Intake Cardomain of the Accord |
10-13-2005, 09:52 AM | #35 | |
Registered User
Join Date: Apr 2005
Location: Monroe, WA
Posts: 298
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Quote:
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10-13-2005, 06:50 PM | #36 |
Registered User
Join Date: Jan 2005
Location: Tonganoxie, Ks
Posts: 180
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My 71 GMC with 350/350 3:73 bored .30 over and 650 edelbrock 10 mpg.
85 Monte Carlo SS H.O. 305/200r4 3:08 out back i think? all stock 67k and I get 20 city & 24 hwy My wifes weeny wagon (87 plymouth colt) 4 cyl auto 32mpg no matter where she goes. |
10-13-2005, 06:55 PM | #37 |
Next!
Join Date: Jan 2003
Location: Eastern Pa.
Posts: 2,483
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72 K10, 350 Auto, stock 15" L235R75 Tires, 3:08 rears - 12MPG
My everyday driver, 2004 K3500,6.0L Auto w/ stock 16" tires gets only 8 1/2 MPG! thank God for two tanks!
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86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck |
10-13-2005, 07:12 PM | #38 |
hmm...
Join Date: Jan 2004
Location: Culver, Indiana
Posts: 1,631
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the one time I actually checked was 8ish mpg with the 67
the delta averages 17-19 mpg combined the grand prix averages 25 mpg
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1983 Oldsmobile Delta 88 1967 Chevy C-10 stripper www.fcrperformance.com - wanna go...faster? talk to FCR. |
10-13-2005, 07:58 PM | #39 |
huh?
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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When I drove the 68 every day, I averaged a piss-poor 6 MPG. Was running a worn out 350/TH350/3.73's, with 255/60/R15's out back.
Daily driver now gets me 17 or so on the highway, possibly a tad more than that on a really long trip. In town, I don't wanna know.
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
10-13-2005, 09:57 PM | #40 |
Registered User
Join Date: Oct 2004
Posts: 392
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70K5, 250/3 speed. 3.73 gears, 17mpg hiway w/top off
84 Cherokee w/3.4 TF auto, 3.73 gears, 22 hiway 81 E350 Ambulance (DD) 460/C6, 4.10 posi, driving weight 10,100 lbs 8mpg Hiway |
10-14-2005, 01:54 AM | #41 |
Project 7dos
Join Date: Aug 2001
Location: Abilene, Texas
Posts: 876
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My Garage Queen 72 gets average 9 mpg
My Daily Driver Monster Dodge gets 8 avg
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7DOS - 1972 C-10 350/350 Porterbuilt/Accuair 20x8.5/20x10 Ride Low or Die PSSST - Yes it's bagged. 7dos build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=610290 |
10-14-2005, 02:07 AM | #42 |
Registered User
Join Date: Feb 2005
Location: HALIFAX NS
Posts: 25
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My 84 1 ton cc dually ,with a 427 bored.30 and eldbrock 650, turbo 400 tranny, and 373 gears ==== a consent 10 mpg.
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10-14-2005, 02:34 AM | #43 |
Registered User
Join Date: Sep 2005
Location: British Columbia CANADA
Posts: 118
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10 mpg with my 71 C20 350 engine stock and tired except for hei and a Edelbrock carb
started at 4 mpg when I bought it but it ran like crap.
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1969 C20 Customer Camper CST, 396, TH400, Factory A/C, Olive Green. Last edited by MACO; 10-14-2005 at 02:35 AM. |
10-14-2005, 03:46 AM | #44 |
Registered User
Join Date: Feb 2004
Location: Old Town, FL
Posts: 22
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84 C30 CC Dually. 454/TH400, 4.10 rear, 235/85/16 tires. All stock except for dual exhaust(nothing fancy). 8.7 mpg empty. Don't want to know with a trailer.
This is my daily driver. On the bright side though.....it's paid for. |
10-14-2005, 11:06 AM | #45 |
Registered User
Join Date: Sep 2005
Location: tn
Posts: 206
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my 2000 blazer gets about 18-20
my 88 berreta gets 32 my 96 s10 gets about 5 gallons a year lol |
10-14-2005, 11:29 AM | #46 |
Registered User
Join Date: Jan 2005
Location: Colorado Springs
Posts: 693
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11.5 in town unloaded 11 towing 12 on the Hwy empty I need an overdrive
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1971 GMC K1500 SWB Fleetside, 4" skyjacker softride and, 14 Bolt FF, HD Dana 44 4.10's 1970 K5 TBI conversion lifted etc SOLD 1968 C20 camper truck SOLD “To ban guns because criminals use them is to tell the innocent and law-abiding that their rights and liberties depend not on their own conduct, but on the conduct of the guilty and the lawless.” Jeff Snyder |
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