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Dr. Performance vs. DDynamics

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I just did. Think about it. :D



The smoke obscures the starting lights just like the front tire does. The timer doesn't realize the truck has gone until it is way down the track and the smoke dissipates. If you huffed a turbo at 1000 ft on a run that otherwise would be even better than 11. 53, you would be well over 100 mph at 1000 ft. You would not slow down all the way to 69 mph in 320 ft. (quarter mile = 1320 ft). Using some NHRA records as guidelines, to run 11. 50s in the quarter, trap speeds would be around 115 mph. Since the run would have been quicker if power stopped at the 1000 ft mark, 11. 2 seconds is more likely at 120 mph trap speed. To get a 115-120 mph trap speed, the truck would be going well over 100 mph, more like 105-110 mph at 1000 ft. Therefore, it did not run 11. 53 at 69 mph. It ran a slower et that is consistent with something over 69 mph at 1000 ft, maybe 80 to a max of 95 mph trap speed would be reasonable if the run was complete.



Diesel Dynamics realizes that smoke obscured the start lights on the runs that seemed to be in the 10 second range. Ten second quarter mile elapsed times are not consistent with the observed 110-111 trap (ending) speeds. That trap speed is very reasonable for 11. 96 seconds elapsed time.



Remember KatDiesel's recent 11 second slips that he did not report himself because he realized they were bogus for some reason. His Ram dynoed in the low 500 hp range. The white DD Ram dynoed at 740 hp with nitrous. High eleven second and low 12 second et's are reasonable for the DD truck, in my opinion.



Because of the above, I think it is most likely that the Diesel Dynamics time slip of 11. 96 is the first true eleven second run for one of our Turbo Diesels. Impressive for a fully loaded 4 wheel drive, leather seats, quad cab, etc.
 
Originally posted by Joseph Donnelly

Because of the above, I think it is most likely that the Diesel Dynamics time slip of 11. 96 is the first true eleven second run for one of our Turbo Diesels. Impressive for a fully loaded 4 wheel drive, leather seats, quad cab, etc.



Impressive, yes!!!



Now all we need is the first DIESEL FUEL ONLY 11 second Ram.



You did not make even a fun run Joe? You are the man to beat on straight Diesel out there.
 
dr p

those prices dr p is asking are outrageous. dollar for dollar there are far better options. i read somewheres dr p is a dr of veterinary.



On Edit:

please keep it clean, Big Daddy.



Todd Thorp

12 Valve Moderator
 
Re: dr p

We know, look at the dates of when this thread started.



Joe,

Does Jeff at STP of Atlanta not count? He has a full size Dogde ram, with a CTD that ran in the 11's in the 1/4. I know the other truck yiou mention did not make an 11 second run at 69mph, one word; impossible. :rolleyes:



Andrew
 
I must have forgot... what issue and page of TDR?

Meanwhile, Autowurks on p. 19, TDR 31 has a time slip for 11. 81 at 111 mph. That one might be right, too. I think they lightened their truck quite a bit. . .
 
gene



the timers are on the ground. but if they had a smokey truck next to them it could screw them up. when kieth and i made that pass yesterday it was pretty cool. he beat me by 1/2 a truck length.



missed him by that much. :mad: lol



jim
 
Dr. Joe,

You are correct, that truck was so light when it made that run, the bed was only the sides, no "floor" there, if you know the part I'm talking about.



Gene,

If you watch the video of the run from MM, then you notice the smoke even went infront of the truck. Don't think of Dave Mitchell's stacks, but think of the smoke like this where it spreads ALL around the truck, and THEN you can maybe understand how happen. Remember the old saying that diesel smoke goes back to the ground.



Jim,

If you were that close to him at the finish then congrats, you made AT LEAST a 12 second run, good job!



Andrew
 
Yep, I don't think there is much chance it weighed the full 6200 lb they guessed it was. I hear they ran big slicks too. That could account for the . 15 seconds better et at about the same mph as the DD truck. The white DD truck is their "trash hauler. " They use to haul the cut up exhaust parts and boxes to the dumpster :D



Last time I recall a trash truck test was in Cars magazine about a 1/4 century ago by Joe Oldham, a humor test of a real garbage truck. They called the article "Trash Bash" and said it ran "69" mph. :) The DD trash truck runs a lot better :D
 
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