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Competition DTT vs. BD vs. SBC et all

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Competition Diesels in december dyno videos

Competition lets hear some dyno numbers

I think the original point of this thread after reading through the posts was how much power would be put to the ground in a given gear (direct 1:1 would mean equivalent gears, 3rd in an auto, 4th in a 5 sp, not sure what gear that would be in a 6). I seriously doubt that anyone would argue that given 2 Dodge 3/4 tons with the same amount of power that the manual equipped truck would beat the auto in a drag race - IMO that would be an insane argument. Unless I am wrong, I took the point of this post to be on a sustained pull (ie, pulling a large trailer up a steep hill) which combo could put more hp to the ground. Unless there's an auto torque converter that can hold 1000 ft/lbs of torque in lock up, which DTT has argued over and over that they can't - then this is an easy win for the manual trucks (given a clutch that can hold that - which there are several options out there that can, IMO). If a TC can't hold the power in lock up then it's going to lose SOME efficiency and not be able to put as much power down as one that's in lockup (or a manual with a clutch that's not slipping).



Now if you're talking about 1/4 mile times then shifting times, being able to build boost on the line before the launch, and not losing boost being shifts are all big factors - my estimate is that an auto is worth at least a second over a manual on the dragstrip given the same power - I doubt that anyone would argue that (I may be wrong). However, the vast majority of guys driving our trucks are using them for towing purposes - and our dragstrip antics have little to nothing to do with what they're doing with their trucks! If this is going to be a true challenge it needs to be nailed down as to what the goal is. Looking at the orignal post I think it's how much power can be put to the ground in a realistic towing situation (no shifting involved, etc - a SUSTAINED tow up long grade pulling a trailer) - I could be wrong though!
 
Oh yeah?!

Well, my Duramax equipped with the Alisson will out do all of ya'll, at least in stock form. My D-max comes with enough power as I don't need to "bomb" it to make it pull or run fast :p



Dan
 
First off 683. That's all that needs to be said to answer your question John. That's the hp that our stuff has been tested to so far. The previous best was 651hp.



I think that the best thing to put all this to rest would be at Muncie IN, since they are doing sled pulling,Drag Racing, Dynoing. A point system with each contestant getting points for the way they finish in each category. Then the total # of points combined over the three determines the overall winner. We should have a small entry fee so the winner gets something. Most of the big dogs will be there. DIESEL TRANSMISSION TECHNOLOGY will put up $500 for the winner. Peter from South Bend offered $300 and I am sure that others will step up. Remember this is all for fun, no crying allowed. :D :D This should be fair for everyone considering the sticks should win the dyno and sled pull. :rolleyes:



What do you guys think? It will make a little more work for the GLTDR, but I'm sure Steve and the boys won't mind. This would give someone the ultimate bragging rights.



To keep it fair the trucks should have to weigh in the same in the pull and the drag race no adding and subtacting weight between events. The heavier trucks will have the advantage in the sled pull and a disadvantage in the drag race and the lighter trucks situation would be reversed.
 
Oh STEFAN!!!!

You keep talking, but I recall Wayner won Thunder in Muncie with a stock stick, right off the farm my friend!!!!!! What round did you make it to?:eek: :p ;)



And Eric won the Bristol event with a stick also.

Must be some guys out there can shift pretty well, eh?

(Don't ask about Briar's shifting!)





I have been saying for quite some time, lets have a Diesel triathalon, Dyno, drag, and then separate the men from the autos, SLED PULL!

Scheids would also be another great place to do this.



You are right, no crying. :D

This thread is great!:D :rolleyes: :D

Gene
 
One part of the deal that I had with my dad when I bought his truck was that I got whatever transmission set-up that I wanted. Lets just say that by then I will have the new HURRICANE transmission in. :D :D Lawrence just finished testing the current set-up to 711hp last Friday and did 683hp on Today. :D The HURRICANE doesn't RPM. Lets just say it will be interesting. :D



Gene, wayne did win the drags but that was bracket racing not heads-up. I seen you pull and if all the sticks pull like you this should be a cake walk. ;) :D Remember this is for fun again no getting worked up.
 
Stefan,



what did everyone else do today in Pahrump?



I would like to know if you do. I have tried to call a few people and no one was around.



Don~
 
Don, I only got a few:



Lawrence - 683hp

Joe D- 557hp?

Jim Fuller- 446?

Mark Flinn from DD - 466



I know that there was 8 guys above 400hp these are the ones I remember keith saying just don't remember the exact #'s



Lawrence from DD

Mark from DD

Joe D

Jim Fuller

John Emmerson

Diesel Ram

Kwick Kurt

There might have been 2 others over 400hp I pretty much tuned everything out once I heard how much Lawrence did. You know the saying "nobody remembers 2nd place" try remembering the top 8. I do know that there was over 100hp difference between 1st to 2nd. :eek:
 
Stefan,

I don't get worked up, I like to play that way!



Muncie is my most dismal failure, I had some serious issues with a clutch and loss of boost.



I have them corrected!



I believe a stick won the day anyway, didn't it? Except for that one PSD, it was an auto.



Were there any PSD's over 400 at the dyno?



Gene:D
 
Actually Stefan...

Okay guys, here was the list of people over 400hp yesterday at the Pahrump gathering:



Lawrence Bolton (DD) - 683. 3hp - DD powered, DTT trans

Joe Donnelly - 556. 1hp - DD parts & tuning, 5-speed w/JD clutch

Steve Covalt (Heberam) - 526. 2hp w/propane - DD parts, 6-speed w/ clutch unknown

John Emerson - 492. 2hp - DD parts & tuning, DTT trans

Steve Covalt (Heberam) - 470. 4hp w/o propane - DD parts, 6-speed w/ clutch unknown

Mark Flinn (DD) - 466. 7hp - DD powered & tuned, DTT trans

Jim Fuller - 455. 5hp - Bully Dog step 5's, 6-speed w/SBC

Steve Fyfe - 429hp - Joe Donnelley prepped 12v

Kurt Yardley (Kwikkurt) - 417hp - DD injectors - manual trans, clutch unknown



So there you have it. DD parts swept 6 of the 8 top spots, and took the overall win. 3 DTT trans's in the top 8, with the top dawg being one.



Diesel Freak, I think you lost the bet. :eek: J/K
 
Hey Keith,



the numbers are good, but appear a tad lower than some earlier testing numbers. What was going on with the dyno? Was it humid? Too cold? What?



I wish I could have come out. I had the joy of working yesterday.



Maybe nex time.



Don~
 
The cold hurts the power available. On Friday, with the injectors we had, the truck was loping. That means there's lots of fuel. On Saturday, with the colder weather (about 25 degrees colder than our shop), it wouldn't lope at all, even after a few trips around the block.



Maybe it'll make better numbers for May Madness. :D
 
No thanks. We don't want to go slower. A manual may put slightly more HP to the ground, but won't hang with that auto in a race where you have to use more than the initial gear.
 
Lets use a good verti-gate trans or a Lenco and see who wins. Try and get a pro-stock to run down the track with an auto.

Geesh!!!



Don~



Our 5 and 6 speeds are not modified internally like the DTT stuff.

Just a clutch and off we go.
 
Originally posted by Don M

Lets use a good verti-gate trans or a Lenco and see who wins. Try and get a pro-stock to run down the track with an auto.

Geesh!!!



Last time I checked, you couldn't order a Dodge Ram with a Cummins and a verti-gate or a Lenco.



Run what'cha brung. If you want to put one of those in your truck, I'm sure Stefan will run you, win or lose. Just be aware he will have Diesel Dynamics power behind him.
 
Originally posted by StakeMan

I think you guys are full of crap. You all know the only way to test this is to use one truck!



I agree. You bring us your truck and your checkbook and we'll do as much power as you want. Then you can swap trannys and see what holds to what. :D
 
One truck and two transmissions sounds like the answer to me.



Who wants to volunteer to watch the standard whip the auto?



Bottom line is the HP drag is less with a standard.



Keith you dont want to do this, youll loose.



As for me, I am content to know what the truth is and cant afford to try something like that.



Don~



Im not taking anything away from the DTT stuff, from all accounts its the best.



Same truck, JD clutch in the 5 speed and DTT auto stuff. Less HP will come from the auto... bottom line.
 
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