Subman you are correct.....I would not believe a 5.9 could run #2 an 6000rpm for any length of time an make 1900 hp.....trust me we tried it we probably melted down a total of atleast 6 motors, 6 years ago trying to do it what you are forgetting is when we leave the line with 100+psi is that our motor doesn't get much above 1400 to 1500 degrees, how is that? well it's a neat little thing called water, you might have heard of it??? About 70.8% of the earth (which is where you live if I'm correct?) surface is covered with it. Now, a 5.9 Billet block, with a sigma fuel pump, two very large turbos, and water injection will make ATLEAST 1900 hp an live with rpms up to 6000rpm, now i know being from Oregon it may be hard to believe but it happens quite often here in Ohio, Indiana, an Kentucky area on a regular basis in the summer, check out a site called
www.youtube.com and type in Erik Stacey or Smoknya heck might even want to go to our website
www.smoknya.com or.....now that I give ya the recipe for making 1900 hp you might even wanna build a truck yourself and come compete?? since you think it cannot be done?? but a little word of advice were working on 2000+horse now by the time you get done with yours you might wanna aim for 2500hp because were gonna be knocking on it's doors by the end of next year I'm sure.
KNOCK, KNOCK!.......who's there?....IT'S 2500 HP....oh come on in here let us raise the body, jump on in!!