jQuery not supported.



8.1 vs. 6.0

Fuel economy, power comparo

8.1 vs. 6.0

Postby starspangled6.0 [OP] » Feb 06 2011, 3:34am

As the proud owner of a 6.0, I'm very impressed with the power and smoothness of the engine. However, I will most likely purchase another used truck within the next couple of years, and a GM HD with the 8.1 will probably be in the running. Has anyone ever driven both motors? I've heard that the 8.1 drives like a diesel- tons of low end torque... is the extra 2 liters worth it? And as far as mpgs go, I'm getting around 11 mpg on mostly city driving with my 6.0. Will the 8.1 get worse gas mileage?
07 Silverado 3500HD 6.6L Crew Cab Dually
04 Silverado 2500HD 6.6L Extended Cab w\Hiniker 8.5 V
03 Sierra 2500HD 6.0L Extended Cab w\BOSS 8.2' V


http://www.integrityoutdoor.biz
Original Poster
User avatar
starspangled6.0
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 6043
Topics: 292
Images: 57
Blogs: 45
Joined: Nov 08 2010, 9:38pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Minnesota
Year: 2004
Make/Model: Chevrolet Silverado
Extra Info: 2500HD 6.6L Duramax
Group Membership:
Registered users

8.1 vs. 6.0

Postby LBZDMAX » Feb 06 2011, 5:45am

I drove the shit outta my buddys 8.1 with the Allison tranny. It was badass. Loved that truck. But mine gets better mpg and sounds better doin it. :)
GW
2007 Duramax CCSB LBZ 4WD - SOLD
07.5 Duramax CCSB LMM 4WD

LBZDMAX
Combustion on 8 pistons [L2]
Combustion on 8 pistons [L2]
Posts: 877
Topics: 6
Images: 13
Blogs: 19
Joined: Dec 22 2010, 11:14pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Oklahoma
Year: 2007
Make/Model: Chevrolet Silverado
Extra Info: LBZ CCSB 4WD 2500HD
Group Membership:
How-to Authors
Registered users

Re: 8.1 vs. 6.0

Postby Pope08 » Feb 06 2011, 9:40am

My friend has the 8.1 with a tuner 6" lift and 35s getting about 8 or 9 mpg. and my other friend has a 6.0 getting about 11. the 8.1 is a beast but overkill unless you are hauling some heavy toys.
User avatar
Pope08
Firing on 2 cylinders [L1]
Firing on 2 cylinders [L1]
Posts: 22
Topics: 3
Images: 8
Blogs: 4
Joined: Dec 07 2010, 5:30am
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: millbury ohio
Year: 2004
Make/Model: GMC Sierra
Extra Info: 1500 z71
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby Q-Ball » May 16 2011, 1:34am

My unmodified '03 2500HD with the 8.1 has stabilized at about 9.6 MPG. I would agree with the guys above, it's truly a beast, but unless you are doing some seriously heavy towing, like 13,000 to 15,000 lbs, there's no point in the 8.1
Q-Ball
Firing on 1 cylinder [L1]
Firing on 1 cylinder [L1]
Posts: 10
Topics: 4
Blogs: 0
Joined: Jan 17 2011, 3:00pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Indianner
Year: 2003
Make/Model: Chevrolet Silverado
Extra Info: 2500HD 4X4 8.1L
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby BlackMoose » May 18 2011, 3:16am

Star,
You know my 8.1 has more power than you need a lot of the time, but the thing is, when I need it it's there. I have a whole fleet of 2010 6.0's at work, and they can't even keep up with mine. But as a supervisor, I drive a 2011 Dodge with a 6.7 Cummins, and it won't even compare to my 8.1. The cummins get's about 16mpg and I'm still at most 11mpg, but mine sounds better. :mrgreen: As far as mpg goes, my wife is driving the Moose for a daily driver and she get's about 12.5, except when I drive. Cause I have to drive that Cummins all week. :x Get the drift?
30532568

Think MUD...Cause when you do, you'll have more fun.

Work Truck (2008 Silverado 2500HD 6.0L V8)
User avatar
BlackMoose
Firing on 3 cylinders [L1]
Firing on 3 cylinders [L1]
Posts: 37
Topics: 6
Images: 23
Blogs: 0
Joined: May 02 2011, 6:11am
Years of membership: 2 years of membership2 years of membership
Location: Western Colorado
Year: 2006
Make/Model: GMC Sierra
Extra Info: 2500 HD 8.1L V8 4x4
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby starspangled6.0 [OP] » May 19 2011, 2:47pm

Are you saying the 8.1 is better than the 6.7 Cummins?

I plan on getting a fleet of GM Medium-duty trucks for my business someday, and most come with either an 8.1L or the 6.6L D-max, so I'd like to know as much as I can about the 8.1L as possible.
07 Silverado 3500HD 6.6L Crew Cab Dually
04 Silverado 2500HD 6.6L Extended Cab w\Hiniker 8.5 V
03 Sierra 2500HD 6.0L Extended Cab w\BOSS 8.2' V


http://www.integrityoutdoor.biz
Original Poster
User avatar
starspangled6.0
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 6043
Topics: 292
Images: 57
Blogs: 45
Joined: Nov 08 2010, 9:38pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Minnesota
Year: 2004
Make/Model: Chevrolet Silverado
Extra Info: 2500HD 6.6L Duramax
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby Jim08SLE » May 19 2011, 2:55pm

Jon, One of my friends owns a fleet of Chevy's for his property maintenance company. One is a 3500 with the 8.1, dually and a dump bed. He says the 8.1 was too much for the stainless Fisher V plow and he is only getting 7 mpg (well over 100k on it).

That being said, if his trailer is loaded and needs to carry a load of crushed stone, that is the truck he uses.

Figured I would relay that to you as the application is exactly the same as what you are looking at.
Image
Never forget the ones that got you there...you may need a ride back!
User avatar
Jim08SLE
Combustion on 3 pistons [L2]
Combustion on 3 pistons [L2]
Posts: 380
Topics: 6
Images: 7
Blogs: 2
Joined: Mar 14 2011, 1:57pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Vermont
Year: 2008
Make/Model: GMC Sierra
Extra Info: SLE2 1500 Z71 5.3L
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby starspangled6.0 [OP] » May 19 2011, 2:59pm

Good info, Jim. I still haven't ever maxed out my truck yet, but I know that day will come :(.
07 Silverado 3500HD 6.6L Crew Cab Dually
04 Silverado 2500HD 6.6L Extended Cab w\Hiniker 8.5 V
03 Sierra 2500HD 6.0L Extended Cab w\BOSS 8.2' V


http://www.integrityoutdoor.biz
Original Poster
User avatar
starspangled6.0
Shifting into Sixth Gear! [L3]
Shifting into Sixth Gear! [L3]
Posts: 6043
Topics: 292
Images: 57
Blogs: 45
Joined: Nov 08 2010, 9:38pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Minnesota
Year: 2004
Make/Model: Chevrolet Silverado
Extra Info: 2500HD 6.6L Duramax
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby BlackMoose » May 20 2011, 3:26am

Jon,
I'm just saying that personaly I like the 8.1 that I have, and wouldn't change it for anything. But I agree with Jim, that it kind of is ALOT of power ;) and if you realy don't need it, then it may not be right for your business.
30532568

Think MUD...Cause when you do, you'll have more fun.

Work Truck (2008 Silverado 2500HD 6.0L V8)
User avatar
BlackMoose
Firing on 3 cylinders [L1]
Firing on 3 cylinders [L1]
Posts: 37
Topics: 6
Images: 23
Blogs: 0
Joined: May 02 2011, 6:11am
Years of membership: 2 years of membership2 years of membership
Location: Western Colorado
Year: 2006
Make/Model: GMC Sierra
Extra Info: 2500 HD 8.1L V8 4x4
Group Membership:
Registered users

Re: 8.1 vs. 6.0

Postby Jim08SLE » May 20 2011, 1:34pm

Jason (and Jon), In a fleet for property maintenance... it would be a nice tool to have. But I don't think every vehicle in the fleet needs it. 6.0 in most should be all you need. At least one 8.1 for those rare times. However, if your company grows, those rare times won't be so rare...
Image
Never forget the ones that got you there...you may need a ride back!
User avatar
Jim08SLE
Combustion on 3 pistons [L2]
Combustion on 3 pistons [L2]
Posts: 380
Topics: 6
Images: 7
Blogs: 2
Joined: Mar 14 2011, 1:57pm
Years of membership: 3 years of membership3 years of membership3 years of membership
Location: Vermont
Year: 2008
Make/Model: GMC Sierra
Extra Info: SLE2 1500 Z71 5.3L
Group Membership:
Registered users
Next

Return to Vortec 8100 8.1L V8

Common search terms

getting power still mine thing guys used think change keep work anyone nice lift engine same trucks right

It is currently Apr 24 2014, 6:23am

Login  •  Register
SHOP TALK (Live Chat)
Vortec 8100 8.1L V8 Forum
Vortec 8100 8.1L V8 specific.
To create a new topic in Vortec 8100 8.1L V8, click this button:
Previous topic Next topic

Network Link:
Chevy Silverado Parts

Sitewide News Sitemaps & Feeds

Who is online

Users browsing this forum: No registered users and 1 guest