Who's got the fastest rig here?

Just trying to stir up some activity, who thinks they have the fastest Diesel powered rig here and why? This is for the guys who use their rig to haul ass!

 

Race weight- 7300lbs with driver

14.30 traction limited in 4wd

Looking to hit high 13's with tranny upgrade

John

 

well i am in i got the cpu reprogramed for some extra hp 100 and a whicked wheel in turbo and the banks bighead a little out so i hold the presher up a little to long 34 PSI the speck is 38 and the spring mod to the fuel pump like 3psi over stock -- makes BLACK SMOKE

but it is a X hevey and more set up for towing

 

Since mine is completely stock I'm obviously not near the fastest....but we'll see in a year or so.

 

Since mine's a stick it will never be the fastest, but kudos to those with the nerve to BOMB $40,000 trucks, I could never do it.

 

that is just the think the 7.3 is made for ford by internatanal and is detuned for ford and then put in the F trucks so all i an doing is seting it to the internatanal specks and i do plan on keeping it a long time ( see the extra filters in sig)all the mods i have dun only come in play when you press it hard and i will not do any thing that i think will bomb it

 

The PS, DM and Cummins are all detuned.

 

Depends on what you mean by fastest. Mine won't be the quickest, but it might hit the highest top speed in double overdrive.

 

The Duramax is far from De-tuned. The Duramax in its current form really isn't capable of much more before it is going to need serious overhauling. The Cummins will continue to raise the bar and I'd bet this will result in serious changes.

The 6.0L Powerstroke is not even in competition with the Duramax or Cummins for power anymore, it is out classed by both.

 

YOu're going to get a LOT of disagreement there. You'll have the dmax guys up in hands now. I'm sure BadDog is going to have something to say.

 

You've missed the point. GM isn't going to build trucks that way and warranty them. When the Duramax came out, it was 300 HP and 520 ft lbs. Now it's what, 305/600? Either way they've pushed the envelope--relatively stock trucks are hitting high EGTs as it sits. The Cummins 610 motor is the same way...1300 degrees loaded on a mountain is pretty common, even not to full GCWR.

These engines are not de-tuned. Without exhaust modifications, they're capable of hitting unsafe EGTs with their stock programming. No matter how much power a Diesel engine makes, it can always make more. It's just a matter of how long it'll last at that power level.

I'd say that the Duramax in its current configuration is going to need some improvements before it will be able to offer more OEM power. If not, I'm sure the engineers would have tuned it to exceed the Dodge/Cummins trucks simply so their number would look better.

I really don't think that the Dodge is capable of any more from the factory right now either. They already changed the turbo casing for 04 so they could run 4" all the way to the turbo to decrease EGT. What's next? Factory 6" straight pipes and twins?

 

Well back to the orginal topic,

15.8 in my GMC 2wd 2500 with a 350HO

 

2006 the D-max should be coming factory with optional 5" exhaust and a 700 ft/lbs of torque rating in a "performance 3/4 ton". They still have plenty of room to grow.

 

I guess this is where I misunderstood. De-tuned to me, means, while the engine may be capable of more (such as with the Cummins in OTHER applications, it has factory numbers much higher than pickups are available with) and has to be de-tuned from those numbers to achieve the necessary longevity in pickups.

De-tuned to me means that it already has a higher power output level available somewhere else, but it has to be "turned down" to be installed in this application. While this IS definitely true for the Cummins, and at one time was true for the PSD and may still be, I'm not sure that the Duramax is available anywhere else with more power than it has in the pickups, but I coudl be wrong.

 

IS that V8 6.6 even used in anything else? I am under the assumption that the heavier trucks equipped with Dmax's have 6 cylinder versions, like the 4500-5500 trucks.

 

I'm positive Gm uses them in the Topkicks, but I had heard they were a different engine, a 6 cylinder Dmax.