The following is a compilation from several posts on the same thread.
http://www.turbodieselregister.com/forums....3e%202& threadid=55578
Thanks Vaughn MacKenzie
Last Saturday at Diesel Thunder in Spokane, Dishman Dodge brought out a '03 QC 4x4 longbed for us to check out. We passed the hat to come up with the $50 needed to put it on the rollers so we could see what it would do.
With 82 miles on the clock it put down 262hp/484tq. The dyno at Shelley's Automotive (where he had out event) is a dynojet.
While the truck is very quiet, a bit quieter than a DMax, it still sounds very good and Cummins-like (big 6) under power.
I have seen 4-5 stock DMax trucks dyno and they have been consistently in the 245-250hp range although with quite a few more miles and a little more broken in that this truck was.
Vaughn
The '03 CTD HO isn't avialable with an automatic trans yet.
At every dyno meet I've attended, the operators lockup the converters when dynoing automatic trans equiped trucks to get more accurate readings. There are very little differences in transmission hp losses between auto vs. manual tansmissions this way. This is sometimes difficult to do with a D/A, but I've seen it done many times.
it was the 6-speed truck (rated 305hp/555tq). I think the automatics are rated at 255hp. So, I would expect the DMax/Allison combo should be quicker than the new Dodge Cummins, both auto and HO versions (pretty hard to row the 6-speed fast!). . .given they are all in stock form.
It is interesting the torque number registered came in much lower than advertised torque. Another thing Dodge has been advertising is the new HO Cummins hits peak torque 400rpm lower than the DMax, supposedly the full 555ft/lbs occurs way down at 1400rpm. But a few more dyno runs will show if this is really the case or not though. Being a long-stroke I6 and given equal injection systems, I would expect torque to come in at a lower rpm. I don't know at what RPM it falls off though.
There was a '01 HD Chevy DMax that dynoed, it had a reprogrammed ECM and a box (which one I don't know) and 4" exhaust, it dynoed and sounded very good. It put down about 365hp and made very little smoke in the process.
We had an awesome time at Diesel Thunder and you guys oughta come next year if you can make it The drag racing Sat. night was awesome, one guy bolted on a set of drag slicks on his '01 Ram and nailed down an insane 11.83 @ 118mph
Here's the results of the Dyno runs at Diesel Thunder
The unlimited class (#2 + Drugs)
1st place Christian Roth BD Power 734.2 HP
Torque(dyno maxed at 1200)
2nd place Jim Fuller Diesel Dynamics 645 HP
3rd place Steve Covalt (Heberam) 625.9 HP
BOMBed class (#2 only) Over 350 Hp
1st Jason Burton (thanks PDR) 96 12v 500.2 HP 1036 tq
2nd Steve Opecensky 2001 24v 480.6 HP 960.2 tq
3rd John Triebel 1998.5 24v 448 Hp 1018 tq
4th Jon McCoy 2000 24v 436 HP
5th Jeremey Linder 2001 24v 435.5 HP 882 tq
6th Bob Novak 1999 24v 434.8 Hp 870.3 tq
7th Vince Self /Turbo Liner 2001 24v 423.9 HP
8th Josh Ulrich 2001 24v 378 HP
9th Cliff Wilson 2001 24v 370.3 HP
10th Randy Smith 2001 24v 364.9 HP
11th Dave Lockwood (02 Duramax) 362 HP
12th Kris Doran 1994 12v 353 HP 796.5 tq
Modified Class under 350 hp
1st Kjell Alsaker (99 Power Stroke) 335.6 HP 637.9 tq
2nd Erin Scott 2000 24v 333.3 HP 715 tq
3rd Mike Kerncamp 2001 24v 324.8 HP 711 tq
4th Doug Hofeldr 1998 324.3 HP
5th Jake Burkey 1998 12v 322.8 HP 708 tq
6th Ronda Kelly 1997 12v 315.2 HP
7th Bob Gates 311.5 Hp 700 tq
8th Mark Wilson (Nascar Mark) 1st gen 308 HP
9th Kent Earnest 1998.5 24v 292.5 HP 621.3 tq
10th Casey VeltKap 1996 12v 272.4 HP 607.3 tq
11th Andrew Pittman 96 Power Stroke 268.7 HP
12th Rob Alley 1997 12v 255.5 HP 565.5 tq
13th Bob Beavchaine 1993 1st Gen 247 Hp 577.5 tq
14th Andy Sims 2002 24v 237 HP 527 tq
Stock Class
1st Calvin Stack 2002 24v 237 Hp
2nd Dave Hirtle 2001 24v 229 Hp 470 tq
3rd kevin Stout 2002 24v 221.5 Hp
4th Dan Groat 2000 24v 189.3 Hp