2008 Superduty 6.4L......BAD AZZ - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Tow rigs and trailers
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old May 1st, 2008, 09:28 AM   #1
barry1me
Just another day
 
barry1me's Avatar
 
Join Date: 06-09-06
Location: Howell, MI
Posts: 3,026
iTrader: (9)
Mentioned: 0 Post(s)
Default 2008 Superduty 6.4L......BAD AZZ

I have been contemplating the idea for a long time about getting a new 6.4L. I want to hear from some of you that have one. Some of the aftermarket tuners are making some huge HP out of them 608RWHP.....1200Ft/lb of torque by just tuning and removing dpf
barry1me is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old May 1st, 2008, 09:52 AM   #2
comanche38
Senior Member
 
comanche38's Avatar
 
Join Date: 02-24-06
Location: Highland, Mi.
Posts: 706
iTrader: (21)
Mentioned: 0 Post(s)
Default

I purchased one for my work and it is a great truck, however we had it in the shop all ready because of a "hiccup" during idle, but that is fixed. We will not make any performance mods but it is a strong runner.
comanche38 is offline   Reply With Quote
Old May 1st, 2008, 10:12 AM   #3
Bones
skillicous
 
Bones's Avatar
 
Join Date: 11-06-05
Location: Dearborn Heights, MI
Posts: 11,563
iTrader: (37)
Mentioned: 3 Post(s)
Send a message via AIM to Bones
Default

I'm running a bone stock 08 crew cab dually around for work, with a total vehicle weight of just over 12,000 lbs (weight box and bead bags in the bed). Drove to Flint and back last night and got 14 mpg with a regen in the middle. Not great, but not terrible. It rides like a caddy though... handles the weight llike nothing.
__________________
Inviscid Motorsports

Special Thanks and Recommendations to;
Motorcity Machines
Ironman Offroad
Branik Motorsports
Maxxis Tires

Raceline Wheels
PAC Racing Springs
Joint Clutch and Gear
Bones is offline   Reply With Quote
Old May 1st, 2008, 11:43 AM   #4
trailrail302
Im going FAST!!!
 
trailrail302's Avatar
 
Join Date: 02-22-07
Location: north of the equator
Posts: 3,487
iTrader: (10)
Mentioned: 13 Post(s)
Default

Im the comercial truck manager at Suburban ford in Waterford. I can hook you up with one, if you decide to buy let me know!

Harmless Plug
trailrail302 is offline   Reply With Quote
Old May 2nd, 2008, 07:29 AM   #5
88yj
collecting parts
 
88yj's Avatar
 
Join Date: 03-09-06
Location: Monroe, Mi
Posts: 1,292
iTrader: (26)
Mentioned: 0 Post(s)
Send a message via AIM to 88yj
Default

Quote:
Originally Posted by Bones View Post
I'm running a bone stock 08 crew cab dually around for work, with a total vehicle weight of just over 12,000 lbs (weight box and bead bags in the bed). Drove to Flint and back last night and got 14 mpg with a regen in the middle. Not great, but not terrible. It rides like a caddy though... handles the weight llike nothing.
That is pretty good mpg. I know regen burns a lot of fuel with those trucks.

I towed a waggy through Ohio and got 10.3 mpg with cruise set at 65 mph in tow/haul mode with gentle acceleration. With a Fiero on the trailer coming back the same roads at the same speeds, I got 15.4 mpg.

The 6.4 isn't bad, but if I were ever to buy a new truck I would probably wait for the 4.4-liter diesel to see what kind of mpgs it pulls. My understanding of the new diesel is it will be tuned for mpg, not big power like the 6.4. I don't need a lot of power, my IDI is actually fine, I would like a new truck with IDI-like mileage. I'm afraid that's not possible with the new emissions regs. Not to mention how much all those emissions regs cost.
88yj is offline   Reply With Quote
Old May 13th, 2008, 12:51 PM   #6
2kids=nojeepmoney
Senior Member
 
Join Date: 01-13-08
Location: kALAMAZOO, mI
Posts: 983
iTrader: (18)
Mentioned: 0 Post(s)
Default

Quote:
Originally Posted by 88yj View Post
I towed a waggy through Ohio and got 10.3 mpg with cruise set at 65 mph in tow/haul mode with gentle acceleration. With a Fiero on the trailer coming back the same roads at the same speeds, I got 15.4 mpg.
i got 14.5 hauling a waggie on a 3k# trailer back from south carolina through the mountains... at 70-ish. 10.3 seems awful low. but mines a dodge.
2kids=nojeepmoney is offline   Reply With Quote
Old May 14th, 2008, 10:19 AM   #7
88yj
collecting parts
 
88yj's Avatar
 
Join Date: 03-09-06
Location: Monroe, Mi
Posts: 1,292
iTrader: (26)
Mentioned: 0 Post(s)
Send a message via AIM to 88yj
Default

What year is your dodge? The new diesels aren't like the pre 08 trucks. All the new trucks get worse mpg than older trucks. Adding weight and emissions controls never improves fuel economy.
88yj is offline   Reply With Quote
Old June 15th, 2008, 05:47 PM   #8
Gunsworth
Senior Member
 
Gunsworth's Avatar
 
Join Date: 11-07-05
Location: Birmingham
Posts: 2,592
iTrader: (12)
Mentioned: 2 Post(s)
Send a message via AIM to Gunsworth
Default

Quote:
Originally Posted by 2kids=nojeepmoney View Post
i got 14.5 hauling a waggie on a 3k# trailer back from south carolina through the mountains... at 70-ish. 10.3 seems awful low. but mines a dodge.
yes it does, I got around 11 in our 06 with some city driving and 75ish on the hway with tow/haul on

Im thinkin about using our f-150 from now on with diesel being so damn expensive
Gunsworth is offline   Reply With Quote
Old June 15th, 2008, 10:17 PM   #9
Grassman
RFK
 
Grassman's Avatar
 
Join Date: 01-10-08
Location: Belmont, Mi
Posts: 19,077
iTrader: (16)
Mentioned: 47 Post(s)
Default

i think my new 6.4 will walk a 6.0, very nice interior, feels strong. i havent really worked it yet....only have 450 miles on it ( but i love it, other than the milage)
Grassman is offline   Reply With Quote
Old May 19th, 2009, 10:00 PM   #10
JEEPSTER401
Newbie
 
Join Date: 05-19-09
Location: Rockford MI
Posts: 22
iTrader: (0)
Mentioned: 0 Post(s)
Default

The new 6.4's are great engines. I have had mine since Feb of 07 and haven't had a single issue. I have the Spartan tuner, 4" exhaust from the downpipe back, and CAI. These trucks are capable of 600+ HP and over 1,100 lb/torque with minimal mods. After this it runs out of fuel and air. I would get another in a heartbeat, tuned they are a blast to drive.
JEEPSTER401 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Tow rigs and trailers

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:37 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.18432 seconds with 51 queries