Gas mileage w/ a V8

95silvia · 10-03-2009, 12:06 AM

Just wondering what kind of gas mileage you guys are getting with a V8. Please post what setup you are running as well (carbed, FI, TBI, etc.) I am going back and forth on the V8 and would like to go carbed, but I'm afraid my gas mileage would REALLY suffer. I have to say though having the torque and HP of a V8 to move around a light little S10 might do better than the 4.3..... as long as you don't have a lead foot

Formulakid1 · 10-03-2009, 12:11 AM

Mine gets 3 gallons to the mile..........j/k

I would say I get about 10-12.....but that's not really what mine is built for.

355, 11:1, Solid Roller, N2O, 750 Demon(for now), th350 and 3.70's in a 9".

Almost in the 9's

SH-60B · 10-03-2009, 12:38 AM

Got 16 with a carbed 350/700R 3.08 rear, but I didn't take it easy on the truck either.

firstgenon24s · 10-03-2009, 01:39 AM

^ Thats about what I get 13-15 mpg carbed 350 sbc/TH350 stock gears.

tippmann243 · 10-03-2009, 11:48 AM

vortec 355 with lt4 hot cam
t56 trans
4.10 gears

on a shitty tune running pig rich i got 17-18 city and 24 highway.

im hoping with a good tune and a few more mods that i can get 26-28 highway

dirty_drew · 10-05-2009, 06:25 PM

Quote: Originally Posted by tippmann243

vortec 355 with lt4 hot cam
t56 trans
4.10 gears

on a shitty tune running pig rich i got 17-18 city and 24 highway.

im hoping with a good tune and a few more mods that i can get 26-28 highway

Thats pretty good and thats what i hope to achieve with a stock to mild LT1 swap. Hell my 2.2L only gets me about 18-20 city with 29 in tires

Terreur350 · 10-05-2009, 07:57 PM

about 15-16 liter/100km, with 357 440hp holley 750 double pumper, 3.73 , Nv3500

tippmann243 · 10-05-2009, 09:02 PM

Quote: Originally Posted by dirty_drew

Thats pretty good and thats what i hope to achieve with a stock to mild LT1 swap. Hell my 2.2L only gets me about 18-20 city with 29 in tires

yeah i was throwing a bank 1 and bank 2 rich code the whole way there

carter · 10-06-2009, 12:57 PM

ive got a 97 vortec 350 in my 00' Sonoma and im getting 26-28 highway driving 100 km/h consistantly...which is almost better than what my subaru wrx is getting haha

turbobandit · 10-06-2009, 03:42 PM

ls1 t56 with turbo, i get about 25mpg. 3.73's
i also cruise at 80-85mph. Boston traffic is NUTS!

Fast_Casper93 · 10-08-2009, 02:55 AM

Built 355, cammed, and running a carb setup with a th350 and im only getting between 8 and 10. How are you guys getting so much higher lol

llorracs93s10 · 10-08-2009, 12:16 PM

93s10 with lt1/t56

old setup:
95z28 lt1 bored .30 over, very small cam (205/210 duration)pretty much stock everything else besides headers, and ported intake w/ 3.42s I got 14.5-16mpg

new setup:
same as above except the truck now has the heads freshly rebuilt again with proper components and 1.6 roller rockers, and a Ernson 218/224 duration and .490 lift cam
Best i have gotten wiht this setup (still on the tune above so theres a lot of improvement i can net still), best was 17.5mpg. That was a mix of hwy/city driving.

I am banking on 17+city and 20+hwy when i get the tune and when the 4.10s get installed.

KJF95S-10 · 10-08-2009, 01:24 PM

Around 26 highway with a 4l65e and 3.73 gears

Maverick2664 · 10-08-2009, 01:55 PM

Quote: Originally Posted by Fast_Casper93

How are you guys getting so much higher lol

if you notice, all the guys with big numbers are all running fuel injection, and most have an overdrive tranny or a manual

a carbed 350 with a th350 usually never gets much higher than 12... "usually"... theres always exceptions though

tippmann243 · 10-08-2009, 06:24 PM

Quote: Originally Posted by Fast_Casper93

Built 355, cammed, and running a carb setup with a th350 and im only getting between 8 and 10. How are you guys getting so much higher lol

we all have embraced something called technology and are reaping the benefits from it.

carter · 10-09-2009, 03:36 AM

Quote: Originally Posted by tippmann243

we all have embraced something called technology and are reaping the benefits from it.

couldn't have siad it better hahaha

SilverWings · 10-10-2009, 05:00 AM

I kept my Vett Lt1 stock for drivability and gas milage. 308 locking rear. Built OD trans. FI. 16-18 in town and 22-24 highway with a shitty tune. I'ts still running a little rich.
Then there's the biggest tires I could fit under it. Just drop a couple tire sizes down and the gas milage would easly improve, but with the larger sway bars and extra good racing shocks I just can't bring my self to do that.

airedout · 10-10-2009, 12:00 PM

carb 350 th400 i get about 11-14 thinkin about switching 2 a 700r4 tho!

Z28Camaro · 10-10-2009, 05:44 PM

I have a 3rd gen carbed camaro with a 355 and a rebuilt 700R4 and I get 26mpg, but only when I'm babying it

bcpd_03 · 10-22-2009, 03:06 AM

built 350 412hp

carb 700r4 370's in a 9'' bout 11mpg keep in mind im a police officer and can not have a heavy foot

10-03-2009, 12:06 AM	#1
95silvia Registered User Age: 28 Join Date: Apr 2008 Posts: 9 Location: User is: OffLine	Gas mileage w/ a V8 Just wondering what kind of gas mileage you guys are getting with a V8. Please post what setup you are running as well (carbed, FI, TBI, etc.) I am going back and forth on the V8 and would like to go carbed, but I'm afraid my gas mileage would REALLY suffer. I have to say though having the torque and HP of a V8 to move around a light little S10 might do better than the 4.3..... as long as you don't have a lead foot
	[Reply w/Quote]

10-03-2009, 12:11 AM	#2
Formulakid1 10 sec. street truck!!! Age: 33 Join Date: Jul 2002 Posts: 1,472 Location: Mississippi User is: OffLine	Re: Gas mileage w/ a V8 Mine gets 3 gallons to the mile..........j/k I would say I get about 10-12.....but that's not really what mine is built for. 355, 11:1, Solid Roller, N2O, 750 Demon(for now), th350 and 3.70's in a 9". Almost in the 9's
	[Reply w/Quote]

10-03-2009, 12:38 AM	#3
SH-60B Registered Neanderthal Join Date: Nov 2007 Posts: 2,335 Location: Meriden/CT/USA User is: OffLine	Re: Gas mileage w/ a V8 Got 16 with a carbed 350/700R 3.08 rear, but I didn't take it easy on the truck either.
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10-03-2009, 01:39 AM	#4
firstgenon24s Registered User Age: 21 Join Date: Nov 2007 Posts: 1,693 Location: User is: OffLine	Re: Gas mileage w/ a V8 ^ Thats about what I get 13-15 mpg carbed 350 sbc/TH350 stock gears.
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10-03-2009, 11:48 AM	#5
tippmann243 the youngest has been Age: 22 Join Date: Jul 2004 Posts: 3,200 Location: FLORISSANT MO User is: OffLine	Re: Gas mileage w/ a V8 vortec 355 with lt4 hot cam t56 trans 4.10 gears on a shitty tune running pig rich i got 17-18 city and 24 highway. im hoping with a good tune and a few more mods that i can get 26-28 highway
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10-05-2009, 06:25 PM	#6
dirty_drew Registered User Age: 18 Join Date: Jul 2009 Posts: 122 Location: Iowa City, Iowa User is: OffLine	Re: Gas mileage w/ a V8 Quote: Originally Posted by tippmann243 vortec 355 with lt4 hot cam t56 trans 4.10 gears on a shitty tune running pig rich i got 17-18 city and 24 highway. im hoping with a good tune and a few more mods that i can get 26-28 highway Thats pretty good and thats what i hope to achieve with a stock to mild LT1 swap. Hell my 2.2L only gets me about 18-20 city with 29 in tires
	[Reply w/Quote]

10-05-2009, 07:57 PM	#7
Terreur350 Registered User Join Date: Apr 2009 Posts: 16 Location: User is: OffLine	Re: Gas mileage w/ a V8 about 15-16 liter/100km, with 357 440hp holley 750 double pumper, 3.73 , Nv3500
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10-05-2009, 09:02 PM	#8
tippmann243 the youngest has been Age: 22 Join Date: Jul 2004 Posts: 3,200 Location: FLORISSANT MO User is: OffLine	Re: Gas mileage w/ a V8 Quote: Originally Posted by dirty_drew Thats pretty good and thats what i hope to achieve with a stock to mild LT1 swap. Hell my 2.2L only gets me about 18-20 city with 29 in tires yeah i was throwing a bank 1 and bank 2 rich code the whole way there
	[Reply w/Quote]

10-06-2009, 12:57 PM	#9
carter Registered User Age: 20 Join Date: Feb 2006 Posts: 232 Location: Calgary User is: OffLine	Re: Gas mileage w/ a V8 ive got a 97 vortec 350 in my 00' Sonoma and im getting 26-28 highway driving 100 km/h consistantly...which is almost better than what my subaru wrx is getting haha
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10-06-2009, 03:42 PM	#10
turbobandit Registered User Join Date: Aug 2009 Posts: 248 Location: User is: OffLine	Re: Gas mileage w/ a V8 ls1 t56 with turbo, i get about 25mpg. 3.73's i also cruise at 80-85mph. Boston traffic is NUTS!
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10-08-2009, 02:55 AM	#11
Fast_Casper93 Registered User Age: 18 Join Date: Sep 2009 Posts: 11 Location: Grand Blanc Michigan User is: OffLine	Re: Gas mileage w/ a V8 Built 355, cammed, and running a carb setup with a th350 and im only getting between 8 and 10. How are you guys getting so much higher lol
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10-08-2009, 12:16 PM	#12
llorracs93s10 Registered User Age: 22 Join Date: Jun 2007 Posts: 4,571 Location: Middletown, DE User is: OffLine	Re: Gas mileage w/ a V8 93s10 with lt1/t56 old setup: 95z28 lt1 bored .30 over, very small cam (205/210 duration)pretty much stock everything else besides headers, and ported intake w/ 3.42s I got 14.5-16mpg new setup: same as above except the truck now has the heads freshly rebuilt again with proper components and 1.6 roller rockers, and a Ernson 218/224 duration and .490 lift cam Best i have gotten wiht this setup (still on the tune above so theres a lot of improvement i can net still), best was 17.5mpg. That was a mix of hwy/city driving. I am banking on 17+city and 20+hwy when i get the tune and when the 4.10s get installed.
	[Reply w/Quote]

10-08-2009, 01:24 PM	#13
KJF95S-10 Two tones of terror Age: 19 Join Date: Feb 2008 Posts: 481 Location: Tampa, FL User is: OffLine	Re: Gas mileage w/ a V8 Around 26 highway with a 4l65e and 3.73 gears
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10-08-2009, 01:55 PM	#14
Maverick2664 Heavy Metal Body Man Age: 25 Join Date: Jun 2007 Posts: 2,846 Location: Erie PA User is: OffLine	Re: Gas mileage w/ a V8 Quote: Originally Posted by Fast_Casper93 How are you guys getting so much higher lol if you notice, all the guys with big numbers are all running fuel injection, and most have an overdrive tranny or a manual a carbed 350 with a th350 usually never gets much higher than 12... "usually"... theres always exceptions though
	[Reply w/Quote]

10-08-2009, 06:24 PM	#15
tippmann243 the youngest has been Age: 22 Join Date: Jul 2004 Posts: 3,200 Location: FLORISSANT MO User is: OffLine	Re: Gas mileage w/ a V8 Quote: Originally Posted by Fast_Casper93 Built 355, cammed, and running a carb setup with a th350 and im only getting between 8 and 10. How are you guys getting so much higher lol we all have embraced something called technology and are reaping the benefits from it.
	[Reply w/Quote]

10-09-2009, 03:36 AM	#16
carter Registered User Age: 20 Join Date: Feb 2006 Posts: 232 Location: Calgary User is: OffLine	Re: Gas mileage w/ a V8 Quote: Originally Posted by tippmann243 we all have embraced something called technology and are reaping the benefits from it. couldn't have siad it better hahaha
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10-10-2009, 05:00 AM	#17
SilverWings An ol Scott Age: 65 Join Date: Jun 2004 Posts: 496 Location: Greenville/Simpsonville SC User is: OffLine	Re: Gas mileage w/ a V8 I kept my Vett Lt1 stock for drivability and gas milage. 308 locking rear. Built OD trans. FI. 16-18 in town and 22-24 highway with a shitty tune. I'ts still running a little rich. Then there's the biggest tires I could fit under it. Just drop a couple tire sizes down and the gas milage would easly improve, but with the larger sway bars and extra good racing shocks I just can't bring my self to do that.
	[Reply w/Quote]

10-10-2009, 12:00 PM	#18
airedout Registered User Age: 33 Join Date: Feb 2008 Posts: 58 Location: Chesapeake Va User is: Online	Re: Gas mileage w/ a V8 carb 350 th400 i get about 11-14 thinkin about switching 2 a 700r4 tho!
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10-10-2009, 05:44 PM	#19
Z28Camaro Registered User Age: 21 Join Date: Dec 2007 Posts: 251 Location: Worthington, IN User is: OffLine	Re: Gas mileage w/ a V8 I have a 3rd gen carbed camaro with a 355 and a rebuilt 700R4 and I get 26mpg, but only when I'm babying it
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10-22-2009, 03:06 AM	#20
bcpd_03 Registered User Age: 23 Join Date: Oct 2009 Posts: 29 Location: NE OKLAHOMA User is: OffLine	Re: Gas mileage w/ a V8 built 350 412hp carb 700r4 370's in a 9'' bout 11mpg keep in mind im a police officer and can not have a heavy foot
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