What was the best MPG you got? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

beeroh · 09-17-2003, 03:51 AM

What was the best MPG you got and what setup were you running?

I think my truck gets 8 MPG.

TIMSPEED · 09-17-2003, 04:48 AM

8's not bad.
I get 10
most of my setup is in my sig, but I have 4.11 rear with 28" tires. With a DIALED in Carb. Hopefully, when I go down to 3.73's (posi) and MAAAAYBE swap in a 700R4 I can go up to 15.

**swervin ervin** · 09-17-2003, 06:59 AM

I just checked mine a couple weeks ago. With everything I've got done to my engine, I got 13.43 mpg exactly. Not too bad for overall driving. I don't *****foot around either. It's not like I'm trying to save gas or anything.

You guys who are getting 8-10 mpg need to do some major tuning.

gldevall · 09-17-2003, 08:26 AM

With doing a good bit of hard driving, I am getting about 11

bigd65 · 09-17-2003, 08:46 AM

i get an easy 14 with mine 700R4-3.42/350--XE262 cam eddy 1406 and holley street dominator

Slonaker · 09-17-2003, 09:32 AM

My best has been a little over 12 with an RV cam and no overdrive. When I pulled it apart, I was getting 11.5 mpg. I'm hoping that will go up a little bit with the new stock cam, timing chain, and gears.

Slonaker

gldevall · 09-17-2003, 10:48 AM

Forgot to mention that I am running a TH400 transmission.

messed up c-10 · 09-17-2003, 11:58 AM

I get around 11 to 13 with my 305 and three speed. I should have 3.08's too.

1974StepSide · 09-17-2003, 12:18 PM

I know my carb isn't tuned and needs to be rebuilt, but I still get about an average of 12 mpg with a 400 tranny, and I don't know what gears...

71-longbed · 09-17-2003, 01:23 PM

12 in town ...16 on highway ... with a stock engine

79BIG10 · 09-17-2003, 01:29 PM

13-14 here

Big Paul · 09-17-2003, 03:42 PM

i'm not in the same league, but i'd shame all you guys.

bigblock73 · 09-17-2003, 03:50 PM

Quote:

Originally posted by swervin ervin
You guys who are getting 8-10 mpg need to do some major tuning.

Mike, before i took apart Yeller I was getting 10-11. Keep in mind that was with a somewhat stout 355/th350/4.10 posi...and a heavy foot most of the time.

Don't you have better gears and a OD trans?

I was hitting 3500 RPM at 60 MPH...no matter how well your vehicle is tuned...you ain't gonna get good mileage with that kind of setup.

With my current setup, I am only hoping to get close to the same MPG...but now I will have a 500 horse 500 tq 454 with a 700...but with the same gears...we'll have to wait and see.

-Jeff

chevychic · 09-17-2003, 06:55 PM

I'm getting just over 12 mpg now after tuning and all. I was getting 8-9 mpg before. I'm pretty happy with 12

*rage'nrat638* · 09-17-2003, 07:15 PM

4 MPG.LESS IT I PUT MY FOOT IN THAT FAT RAT'S a**

81chevystep · 09-17-2003, 11:04 PM

i don't get miles to the gallon, i get gallons to the mile.

the baron · 09-18-2003, 04:23 AM

14 MPG at 75 MPH on the Highway , Oldsmobile 350ci/TH400 , LPG , 12 bolts POSI ( don't know the ratio...)

About the same in town , I guess

The Baron

apstguy · 09-18-2003, 06:16 PM

9 1/2 from a stock 305, TH700, 3.08 gears. No matter what I do - flog it or baby it I get 9 1/2. Old 305s suck for gas mileage.

78' Silverado · 09-18-2003, 07:14 PM

Wat gas mileage. My truck doesnt understand wat that means. I dont even think I get gas mileage!!!! If I do its maybe 2 feet pre gallon. :P

Nvbowtie · 09-19-2003, 03:48 AM

Quote:

Originally posted by swervin ervin
I just checked mine a couple weeks ago. With everything I've got done to my engine, I got 13.43 mpg exactly. Not too bad for overall driving. I don't *****foot around either. It's not like I'm trying to save gas or anything.

You guys who are getting 8-10 mpg need to do some major tuning.

Or look for a gas leak

87Silvy · 09-23-2003, 12:31 PM

Last few times I checked I got 17mpg. Stock 350 w/ TBI.

gchemist · 09-23-2003, 10:33 PM

18 MPG!! 70 MPH on the highway!! Tonneau cover, 3.08, 700R4 and low!!

Lynx · 09-23-2003, 10:40 PM

Last time i checked i got 17MPG on my 305 with the petal to the metal! im happy casue my old truck got 9-10 lol (she ran a little rough)

Ben

09-17-2003, 03:51 AM	#1
beeroh Registered User Join Date: Sep 2003 Location: Atascadero, CA. Posts: 149	What was the best MPG you got? What was the best MPG you got and what setup were you running? I think my truck gets 8 MPG. __________________ 84 Silverado,

09-17-2003, 04:48 AM	#2
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	8's not bad. I get 10 most of my setup is in my sig, but I have 4.11 rear with 28" tires. With a DIALED in Carb. Hopefully, when I go down to 3.73's (posi) and MAAAAYBE swap in a 700R4 I can go up to 15. __________________ I have a few cars... See Them Here

09-17-2003, 06:59 AM	#3
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	I just checked mine a couple weeks ago. With everything I've got done to my engine, I got 13.43 mpg exactly. Not too bad for overall driving. I don't *****foot around either. It's not like I'm trying to save gas or anything. You guys who are getting 8-10 mpg need to do some major tuning. __________________ Mike 1985 Chevy C-10

09-17-2003, 08:26 AM	#4
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	With doing a good bit of hard driving, I am getting about 11 __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

09-17-2003, 08:46 AM	#5
bigd65 Registered User Join Date: Mar 2000 Location: Lake Jackson, TX. Posts: 1,930	i get an easy 14 with mine 700R4-3.42/350--XE262 cam eddy 1406 and holley street dominator __________________ 2004 Silverado Crewcab (Dark Spiral Gray)

09-17-2003, 09:32 AM	#6
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	My best has been a little over 12 with an RV cam and no overdrive. When I pulled it apart, I was getting 11.5 mpg. I'm hoping that will go up a little bit with the new stock cam, timing chain, and gears. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

09-17-2003, 10:48 AM	#7
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	Forgot to mention that I am running a TH400 transmission. __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

09-17-2003, 11:58 AM	#8
messed up c-10 RHCP afficianado Join Date: Oct 2002 Location: McLoud, OK Posts: 789	I get around 11 to 13 with my 305 and three speed. I should have 3.08's too. __________________ ~Ryan~ 89 S-10 Blazer with a 4.3L 96 Ford Crown Vic P71 4.6L V8. This car rocks. Here are some links to some good music. Jack Johnson Donavon Frankenreiter

09-17-2003, 12:18 PM	#9
1974StepSide Play it Loud... Join Date: Aug 2002 Location: East San Jose, CA Posts: 465	I know my carb isn't tuned and needs to be rebuilt, but I still get about an average of 12 mpg with a 400 tranny, and I don't know what gears... __________________ Big Moe =-=-=-= 1974 Cheyenne Super Stepside, 350/400, Hooker Headers, Flowmaster Mufflers... Needs new doors, fenders, hood, and paint. 1952 Chevy Pickup waiting to be brought back home!

09-17-2003, 01:23 PM	#10
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	12 in town ...16 on highway ... with a stock engine __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.

09-17-2003, 01:29 PM	#11
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,775	13-14 here __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

09-17-2003, 03:42 PM	#12
Big Paul Iamnotanofficerofthelaw Join Date: Feb 2002 Location: Turlock, California Posts: 352	i'm not in the same league, but i'd shame all you guys. __________________ ~Paul~ '96 C1500 Silverado- Vortec 5.0L/Exhaust/Stock '87 S-10 Ext Cab- 2.8L/700r4 KIA Caught fire 12/7/03

09-17-2003, 06:55 PM	#14
chevychic Registered User Join Date: Oct 2002 Location: Chanhassen, MN Posts: 1,061	I'm getting just over 12 mpg now after tuning and all. I was getting 8-9 mpg before. I'm pretty happy with 12 __________________ *ChevyChic* 86 Chevy K-10 If I can't be a good example, then I'll just have to be a horrible warning. "You're braver than you believe, and stronger than you seem, and smarter than you think" - Christopher Robin

09-17-2003, 07:15 PM	#15
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	4 MPG.LESS IT I PUT MY FOOT IN THAT FAT RAT'S a**

09-17-2003, 11:04 PM	#16
81chevystep ShadeTree Kustomz Join Date: Dec 2002 Location: spring, texas Posts: 300	i don't get miles to the gallon, i get gallons to the mile. __________________ -chris- 1981 c/10, 383 fully built bagged, custom interior. built entirely by me



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09-18-2003, 04:23 AM	#17
the baron Registered User Join Date: Mar 2003 Location: Liège , Belgium Posts: 263	14 MPG at 75 MPH on the Highway , Oldsmobile 350ci/TH400 , LPG , 12 bolts POSI ( don't know the ratio...) About the same in town , I guess The Baron __________________ 1982 Suburban 2WD , 260ci Olds engine,TH400 , will get a 1979 front clip , might be ready in ... 2016 1985 Chevy Van ( 305/350 ) , "Kellogg" equipped , my actual D.D. 1960 Girl Friend , frame still good , body has some dents

09-18-2003, 06:16 PM	#18
apstguy LED King Join Date: Jan 2003 Location: Sacramento, CA Posts: 2,088	9 1/2 from a stock 305, TH700, 3.08 gears. No matter what I do - flog it or baby it I get 9 1/2. Old 305s suck for gas mileage. __________________ Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32

09-18-2003, 07:14 PM	#19
78' Silverado \/ My Loves \/ Join Date: Mar 2003 Location: Midland,Texas Posts: 462	Wat gas mileage. My truck doesnt understand wat that means. I dont even think I get gas mileage!!!! If I do its maybe 2 feet pre gallon. :P __________________ 78' Silverado - Blue - (In a Coma) 04' Silverado -Red- 383 Stroker in progress for the 78'!!!

09-23-2003, 12:31 PM	#21
87Silvy Registered User Join Date: Sep 2003 Location: North Texas Posts: 326	Last few times I checked I got 17mpg. Stock 350 w/ TBI. __________________ 1987 Chevrolet Silverado 2005 Chevrolet Silverado

09-23-2003, 10:33 PM	#22
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	18 MPG!! 70 MPH on the highway!! Tonneau cover, 3.08, 700R4 and low!! __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos

09-23-2003, 10:40 PM	#23
Lynx Registered User Join Date: Jun 2003 Location: Fort McMurray, Alberta, Canada Posts: 513	Last time i checked i got 17MPG on my 305 with the petal to the metal! im happy casue my old truck got 9-10 lol (she ran a little rough) Ben __________________ Ben 1983 Silverado SWB 305 2002 Silverado Extended Cab 5.3 http://members.shaw.ca/bkennett

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