Well, entered a dyno comp yesterday. 20lbs of boost and made 604rwhp/750 rwtq. Seems 80-100hp low and graph is crazy weird but it was fun. Dyno dynamics. It ran 1.50 60ft, 6.61 at 104, 10.39 at 128.9 Fri night, 4250lbs.

 

Calculator has you at 748.11hp for 10.39 1/4 and 4250 race weight.

 

Yeah its weird that both HP and TQ go up in the same increments on the graph but the lines dont cross at 5250 like normal.

 

Yeah guys, I knew it was wrong, but also nice to get feed back. Thank you. I questioned the graph, and didn't really get a good answer. I did get my 50 dollar entry fee back for making over 500 rwhp, and got prize for highest assisted hp, and prize for driving the farthest to get there. Would have been nice to have a accurate read out though.

 

To me it seems like maybe the dyno wasn't a load bearing dyno. But still good to know you're making atleast that much!

 

It was loaded. Sounded like too much load if that does anything

 

They're strong numbers, even if they arent accurate!

Looks like you had fun!

 

What's the average observed drivetrain loss for one of these trucks? I was thinking 18% or so with the 4L80E.

 

I thought around 22%, but I could be wrong

 

Dyno calculated engine RPM didn't match actual engine RPM. That's why it appears to have peaked like 1000rpm low... Pretty typical operator oversight.