To me it seem like some track guys have dyno trust issues, guess cause a dyno operators can fudge the results bit, and I guess from a bunch of braggarts that say they dyno X hp but come up far short of that on the track, can't really fudge an et/mph. But is ridiculous to trash dynos as an unreliable tool, I imagine anyone serious about their engine doesn't wants fake unreliable dyno results.
Did You not read post#183? If a dyno shop is willing to Bullshit number an already accomplished individual, that has as many dyno runs under His belt as nearly any other individual out there, why would You believe they won't do it for Joe Ego??
Lots of Folks with big $$$$$, & Egos to match, want to show off big dyno curves on a sheet of paper.....I've known the "probably makin' around XXXHP" types, & You could never get them to run when I street raced, & if they had a great dyno sheet they didn't need to race You to prove it..the few You could talk into runnin' would never get talked into it again.
As far as a "reliable tool", it sure can be, I'm not telling anyone not to use one....but if JRob wasn't a class act, He could tell You some of the dyno BS that went down during Engine Masters Competition. This thread was started to get as much real stock 340HP dyno testing available to get a feel for real unmolested numbers, knowing there'd be variation, the more input to avg. the better an accurate pic of it. As was common knowledge, magazine road-test cars were "tuned/hot" for great press, so those came w/a grain of salt. It's not that You couldn't duplicate it, but they were NOT running that off the showroom floors.
