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View Poll Results: Which is the best ?
Chevy/GMC 2500HD with a durmax/ Allison combo 59 29.35%
Dodger 2500 Heavy Duty with the Cummins 84 41.79%
Ford F-250 SuperDuty PowerStroke 58 28.86%
Voters: 201. You may not vote on this poll

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Old July 20th, 2006, 03:38 PM   #101
95geo
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my duramax has 54k on it, i run 35" tires and a 500rwhp tune, i get about 18mpg around town (15 while driving hard) with mixed driving and 13mpg while towing 6k lbs

i have not had any injector problems, i rebuilt the trans about 10k ago and i have very little problems with it. (knock on wood)
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Old July 20th, 2006, 04:18 PM   #102
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i love my PSD (7.3L). i'm a little partial to Fords because my dad always had them growing up. but i wouldnt trade it for anything. i get 15mpg around town, 18-20 on the hwy, and 15mpg towing. i cant complain at all. hopefully going to add an intake, exhaust, and some gauges this winter and call it good.
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Old July 20th, 2006, 11:01 PM   #103
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yea, the allisons are pretty good. too bad you have to buy a trans "chip" along with the engine "chip", because the trans senses slip, and detunes the engine. stacked d-max's are fast though, thats a fact. too bad they are ugly, the interiors feel cheap due to excessive plastic, shatty leather, and cheap electronics, and they are amost all automatics. also, the toe-in thing that they do when hooked to a sled is most disturbing.

fortunately i keep these two sayings hand in hand.
"six in a row, makes it go!"
and
"if it dont smoke black, take it back!"
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Old July 21st, 2006, 06:33 AM   #104
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Quote:
Originally Posted by busyfixin
yea, the allisons are pretty good. too bad you have to buy a trans "chip" along with the engine "chip", because the trans senses slip, and detunes the engine. stacked d-max's are fast though, thats a fact. too bad they are ugly, the interiors feel cheap due to excessive plastic, shatty leather, and cheap electronics, and they are amost all automatics. also, the toe-in thing that they do when hooked to a sled is most disturbing.
theres no such thing as a "trans chip" for the allison. the only common mod is reverting back to a previous operating system for different shifting charicteristics. a built trans doesnt slip.

the "toe in" thing is because people leave their torsion bars cranked up.

the rest is preferance....
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Old July 21st, 2006, 10:03 AM   #105
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a duramax w/ only 44k getting a trans rebuilt? what did you do it man?
i thought they were a tough trannys? lets hear it...
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Old July 21st, 2006, 10:15 AM   #106
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Quote:
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a duramax w/ only 44k getting a trans rebuilt? what did you do it man?
i thought they were a tough trannys? lets hear it...
i ran stacked boxes good for about 420rwhp for a while and the edge on 120. i was not very nice to it. i new i was going to do the trans so i didnt wait until it was bad to do it, i wanted to play now. i am now running a tune good for 497rwhp.

i went with a suncoast L4 with a triple disk converter, the trans has extra clutches, boost modifier valve and a transgo kit.
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Old July 21st, 2006, 11:02 AM   #107
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it's done and back on the road?
i want to go for a ride in that!
sounds bitchin'.

you go to the strip with it?
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Old July 21st, 2006, 11:26 AM   #108
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Quote:
Originally Posted by b.lee
it's done and back on the road?
i want to go for a ride in that!
sounds bitchin'.

you go to the strip with it?
it only took a weekend to do the trans, i still have to do a few things before the track but its still fun down on woodward.
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Old July 21st, 2006, 12:13 PM   #109
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Quote:
Originally Posted by b.lee

you dont see any Powerstoke only shops
Don't know a whole lot, do you? There are International shops all over... that sell Semis and med duty trucks. My PSD has 316K, I get 22 mpg on the highway and 15 in town. All stock except a downpipe and wide open exhaust.


As far as "Duramax shops"... they are called Isuzu med duty trucks, and they have shops all over too.
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Old July 21st, 2006, 02:09 PM   #110
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Quote:
Originally Posted by Bones
Don't know a whole lot, do you? There are International shops all over... that sell Semis and med duty trucks. My PSD has 316K, I get 22 mpg on the highway and 15 in town. All stock except a downpipe and wide open exhaust.


As far as "Duramax shops"... they are called Isuzu med duty trucks, and they have shops all over too.



x2


Our school busses have powerstrokes in them. Though I heard a rumor that we were getting some with Cat's in them
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Old July 22nd, 2006, 12:47 PM   #111
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I have an 02 dodge that really haven't towed with as much as intended but with 98K on the clock still haven't had a problem. Changed the tranny fluid probably more than needed and it's still hanging in. Balls out power, stone reliable, comfortable as any truck I have had. 4.10's and gets 18mpg @ 70, drops to 14 when I flat tow the Jeep. The newer ones have some glitches worked out, new track bar set up, better torque converter, quieter engine(for those that mind, I like the clatter). I'd buy another but may never need to.
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Old July 24th, 2006, 01:22 PM   #112
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isuzu dealerships build performance duramax's????
id really like to see these shops that specialize in turning up school busses.
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Old July 24th, 2006, 01:26 PM   #113
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Default GM/ Allison tranny

All i know is that most of the Millitary vehicles that i am around all the time have Allison transmissions, and they go through hell and back with out even flinching, My vote goes to GM

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Old September 9th, 2006, 02:11 PM   #114
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Default looking to buy a new Diesel need some insight

fellas,

I went and test drove a 06 CTD HO, and it seemed like a pretty nice truck, and not a bad price for what it is. I have been hauling my jeep with my brothers duramax and it seems like a nice truck. I got 12.5MPG hauling jeep, two quads, gear, and 4 people to silver lake at ~72 MPH, I didnt think that was to bad. Can a cummins get that good of mileage or better? He has a 01 with 150K miles and a superchip. It seems to have a lot more power then the 06 CTD that I drove. I know that the newer fords 6.0 stroke has had some problems, so Im not even going to consider that. I know which ever I get dodge or Chevy Im gonna chip it and try and get an additional 100+hp if I can do it safely. What do you guys think is a better truck?
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Old September 9th, 2006, 02:29 PM   #115
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all stock diesels are dogs.
edge / tst chips are the way to go.

the cummins gets better MPG period.
where the d-max gets 12.5 towing, and CTD should be getting 15-17mpg.

im a huge cummins fan tho, so im bias. (w/ good reason)
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Old September 9th, 2006, 02:56 PM   #116
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Quote:
Originally Posted by b.lee
all stock diesels are dogs.
edge / tst chips are the way to go.

the cummins gets better MPG period.
where the d-max gets 12.5 towing, and CTD should be getting 15-17mpg.

im a huge cummins fan tho, so im bias. (w/ good reason)
how does the dodge powertrain hold up to performance adders? I dont want to go crazy with mods, but I can do an exhaust for free, and intakes arent to expensive, so I figured those and a chip and I would be happy!
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Old September 10th, 2006, 11:22 PM   #117
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Quote:
Originally Posted by barry1me
how does the dodge powertrain hold up to performance adders? I dont want to go crazy with mods, but I can do an exhaust for free, and intakes arent to expensive, so I figured those and a chip and I would be happy!
ANY power train is gon need upgrading once u start adding power, but those mods seem suttle enough that you should be ok
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Old September 17th, 2006, 05:57 PM   #118
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a 100 HP chip or tune on either truck will require a beefed up trans eventually.....and intakes on the dmax don't really add any power, just sound cool.

Also, that 12.5 number......is that what the DIC (driver information center) said, or is that hand calculated?

The reason I ask is because if that was the reading on the DIC, it is wrong. The superchips makes that number inaccurate. Also, if the truck has bigger tires, it will also be off.

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Old September 17th, 2006, 06:57 PM   #119
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please explain why that number would be innacurate ?
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Old September 18th, 2006, 07:52 AM   #120
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Quote:
Originally Posted by Kawierider
please explain why that number would be innacurate ?

because when you add a chip it changes the injection pulse width and timing from what the ecm/pcm "knows" and it no longer knows how much fuel is being put into the cylinder.

i have been towing with 500hp recently and i have been getting 14.5-15mpg on 35" tires. i have gotten a best of 17 towing and 19 unloaded. i have yet to run my mileage tune which should net me about 21-22 mpg if driven conservatively.

this is with an 04.5 duramax/allison and tuned with efi live. i wouldnt run more than a 60-70hp chip unless you plan on trans upgrades. exhaust should be done reguardless becasue it drops your egt's about 100* and helps the turbo spool quicker.
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