i thought he wanted to know how to move his power curve up on a sled truck? i dont really believe what some puts in a magazine about twin turbos and nox relates to his question.
as long as he has a decent cam in his motor the easiest way to move up his power curve and make more hp is a bigger turbo:thumb:
OK, to put that in a pulling truck perspective... Call the owner of Megatron 2.6 dodge.... He tried a really aggressive cam this year and I will guarantee it made good numbers for a 2.6 truck at a higher rpm, but with his gearing and setup he couldn't stay on the charger at the big end when the engine pulled down, or wouldn't stay above charger when he let clutch out.
There is 2 really different theories when you talk to different tractor pullers, if you can get any info... Lots of people are going backwards from old theory in pulling. Big cubes and big gears and lug the piss out of them on the big end and use the torque... Others are under cubed with short stroke big bore and wing the piss out of them, that engine will make more HP, but won't lug or tends to "buzz" the tires... Depends where and how u pull and how your setup works.
Talk to the semi pullers also, look at how well Walker's single turbo prostock semis do against 4 turbo semi's with 500+ more HP. They win points, weird????? But on the loose tracks where the multicharger trucks can gear up and get out of the hole they can beat up the singles pretty bad... But a damn good clay NTPA track the Walker's do very well because their trucks are setup and work well on a good track and sled.