cummins or dmax - Diesel Truck Forum -
Thread Details Posted by cat power, this thread has received 16 replies and been viewed 1703 times.

View Poll Results: which
dmax 13 30.95%
cummins 29 69.05%
Voters: 42. This poll is closed

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post #1 of 17 (permalink) Old 01-24-2009, 06:41 AM Thread Starter
smokin duramax
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cummins or dmax

alright i bought a 03 CR 4door 4x4 dully 6 speed and iv already been thinkin on trading and getting this 04 lb7 6 speed , so i need some help

04 lb7 chevy 2500 Duramax Ext.CSB 4x4 6 speed
Engine : PPE 425 hp chip, Head stud kit, studded mains, dual cp3s, FASS, ATS Aurora 3000 & 5000 , and 5 inch straight pipe.
Transmission : zf6 , dual disc clutch , atlas II transfer case (daily driver)

88 s10 on a 1 ton frame , 350 .30 over 3/4 cam , afr 200cc heads , 800cfm thunder eldbrok , 14 bolt rear dana 60 front , np 205 with a munci m21 4speed tranny . 527 gears. dual radiaters sittin on 44s. ( TOY )

1987 CASE 1455B track loader / crawler loader
1997 CASE 1845C skid steer / bobcat
1990 CASE 580K 4x4 , turbo Backhoe
1985 CAT D4H dozer High track
1993 CASE 1288 Track hoe / Excavator
1984 CAT D6D dozer

1987 GMC General tri axle dump , 855 cummins pump turned up, 4.88s 9 spd.

1986 GMC BRIGADIER single axle , 6v92 detroit pump turned up, 5.57s 9spd. custom goose neck, tool/welding Bed

1988 chevy C70 CC single dump , 8.3 cummins , 100# fuel plate 9 speed , 6.57s

1990 PETE 375 Dump quad axle , 3406B cat (dumpin the fuel ) , 18spd. 5.13s

2003 Chevy C5500 CC 4x4 duramax , 208wb. 6spd. 4.56s , long flatbed goose neck
300hp ppe chip , Fass, head studs , Aurora 3000, dual disc clutch , 5" straight pipe
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post #2 of 17 (permalink) Old 01-24-2009, 11:40 AM
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cant help you there im looking for a newer cummins or dmax my self...! I dont know what to tell you there both dang good motors...... it comes down to what truck do you want to drive


95-dodge 2500 built to the hill... - sold to litle brother
03- stroker 6.0 studs and basic BS

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post #3 of 17 (permalink) Old 01-24-2009, 08:15 PM
off to another home
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i vote cummins.


oh well, i have a map to the darkside

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post #4 of 17 (permalink) Old 01-24-2009, 08:18 PM
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I vote for a Cummins in front of an Allison trans, in an F-350 dually CC.


06 F-350 4x4 CC LB Tow Boss Lariat 6.0l auto. Banks PowerPDA, Banks SpeedBrake, FICM Atlas 40 Tune, ARP Studs, PowerMax GT3788VA turbo, Homemade coolant filter, EGR valve delete spool, Monster Exhaust, K&N Cold air intake,Mishimoto Radiator,Husky mudflaps, Line-X bed liner, Recon lights, TUNED BY Innovative.
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post #5 of 17 (permalink) Old 01-24-2009, 10:31 PM
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Originally Posted by jdydiesel View Post
I vote for a Cummins in front of an Allison trans, in an F-350 dually CC.
I like that idea. Voted Cummins myself.
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post #6 of 17 (permalink) Old 01-24-2009, 11:13 PM
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Originally Posted by jdydiesel View Post
I vote for a Cummins in front of an Allison trans, in an F-450 dually 4x4 09 CC.

"some people do, some people talk."
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post #7 of 17 (permalink) Old 01-25-2009, 07:57 AM
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ARP studs, sct, Leveling kit,Airdog set at 62psi with no factory pump, leveling kit,5" stacks, under cab lights, Large in the way Fan shroud Removed, bed Lights being Re-did. Large Alternator(250amps)(130 amps was so 2003). On 3rd set of Hgs(soon to be 4th), 2nd set of heads, 2nd tubro, egr cooler, FICM and more. When i Turn the Key it does return a Favor, not always in MY Favor.
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post #8 of 17 (permalink) Old 01-27-2009, 01:19 PM
I now drive a Duramax...
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5.9 tried and true, and the name is just sexy...

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post #9 of 17 (permalink) Old 01-27-2009, 02:18 PM
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post #10 of 17 (permalink) Old 01-27-2009, 03:45 PM
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Duramax...all the way.

I had the cummins it burns when I pee

In all seriousness, I had an 03 CR cummins (TST, South Bend clutch, 5" exhaust etc) for 5 months and sold it to buy my Dmax.

Here are my findings -

The Dmax would run as well stock as my cummins with the tst on 3/4. The cummins would pull to 2k rpms and just die off, the dmax just keeps pulling.
I have raced a chipped cr cummins, chipped 7.3, and chipped 6.0 all on stock lb7 tuning and won. Now not by 10 lengths, but a win is a win.
I did think I would see a difference while towing, in the cummins favor. But to the contrary, with the Alli in t/h and a 70hp (give or take) EFI tow tune, the dmax outperformed my cummins (tst on 3/5 and sbc) hauling a trailer load of coal. In fact the dmax' load was 1/2 a ton heavier (3 1/4 ton vs 2 3/4 ton) than what I pulled with the cummins.
Mileage tuned to chipped (hand calc, summer fuel) - Dmax 22.5 mpg (h) 19 (town), cummins - 19 mpg (h) 16 (town)

Overall quality of the truck (fit and finish, interior layout, interior quality, etc) is no comparison, GM all the way.

Now that I've probably started a brand war, I'm not bashing the cummins. They are a great motor, without them the diesel performance market would not be here.
I am saying that imo the dmax is a better choice.

Last edited by Whitetail Addict; 01-27-2009 at 03:51 PM.
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