desktop dyno 2000

[saltshaker]

Is this program or the one from comp cams accurate? I ran both programs with the flow numbers from my heads and they were within 3hp of each other...??
Jon

[blykins]

I use DD2k and Engine Analyzer Pro. They're usually within a few horsepower of each other, but they're both usually 5% high compared to a real dyno.

[RICK LAKE]

saltshaker Jon I have both 2. When you put ALL the correct numbers in you are within 2% of the motor. I was off on the old 452 motor by 5HP and 8ft of torque. The yesterday I dynoed the car it was 95f and the humitity was 90%. There software is setup for perfect air, baro, humitity and at sea level. My 482 motor was on the dyno yesterday and was 8hp and 12ft more than the Dyno 2000 sheets. Street pipes and no race fuel, GO figure. Rick L.

[Ron61]

I had an older version of Desktop Dyno than the two above and when I got the figures input correctly even it was pretty good. On my 418 stroker it was off by 4 horse power and I think about 5 pounds of torque.For the 69 428 SCJ bored .065 to 440 C.I. it was off by 3 horsepower and 4 pounds of torque. So I felt it was a good program for getting you into the ballpark range of what your engine is. But what you input is important as just one thing off by a little can make quite a difference.

Ron