Dynoed a 6.2 and power peaks early
#11
I might do some logs eventually here soon and then swap my air intake as it wouldn't surprise me if the stock airbox chokes it a bit..... they aren't even as open as the GMT900 boxes were. I am not unhappy with how the truck feels so it's not the end of the world.
Last edited by 1994Vmax; 03-19-2016 at 08:37 AM.
#14
TECH Junkie
HP & torque ALWAYS cross on a graph at 5252 rpm. On that graph its 44-4500 or so and hp peaks maybe 600 later? That graph is off. Not saying you cant have a problem but the graph is not accurate unless I cant see it plainly.
#16
TECH Junkie
Its just the rpm below didn't match the graph I guess? Threw me off thanks. I still cant make sense of it lol.
Last edited by ZO6Ted; 03-20-2016 at 10:07 PM.
#18
Rpm matches the curves just fine. The sidebar scale for hp and torque numbers aren't the same so you don't see them cross is all. Like look at the line that is 275 ft lbs... its 217 hp... To make them cross correctly in the picture at 5252 they need to be the same hp and torque increments up the side of the graph. Like 200 hp is 200 ft lbs on the same line.. 250 is 250... 300 is 300 and etc.
Truck still is a dog at high rpm and I will solve it myself... as usual lol. My answers aren't a Google search away... but I will update at least one forum post somewhere so that if someone else has this issue... it is a Google search away lol.
Truck still is a dog at high rpm and I will solve it myself... as usual lol. My answers aren't a Google search away... but I will update at least one forum post somewhere so that if someone else has this issue... it is a Google search away lol.
#19
TECH Junkie
I see what you mean now thanks....little slow sometimes lol. Really sorry you're having to go through this with a new truck. I'm kinda thinking Vortec is right about the cam phasing. Seems the most likely to me. Wish you the very best with this brother.
#20
It might be which would be in the tune. I think it's 8 to 10 degrees of retard I should be seeing at this rpm. If it's not achieving that then it could be a mechanical thing but I have my doubts. I think it's a lot simpler. ... like my paper filter and airbox. I might just undo the lid and run it without a filter and see what that does. I need to see what the tuner is doing on Friday and if he fixed the dyno yet lol.