Desktop Dyno Programs

[65TerrorCuda]

I saw the "Dyno2000" as an option and was going to ask about this option, but saw it was older and didn't know if anyone was using it. How do you like it? Can you enter your own cam specs, or do you have to choose between listed profiles?

Still using it on Windows XP. It's fun for doing imaginary builds or seeing if sticking in a different cam, bigger valves etc. will get the results you're after. Yes you can enter your own cam specs or pick from a few choices like torque/rv, street/strip, race cams, rollers, flat tappets, hydraulic.

It's not perfect, when entering boost levels on a blower/turbo, changing the psi makes almost zero difference. Never figured it out, but it's certainly wrong in that aspect.

 

[65TerrorCuda]

Graph properties:

View attachment 1716473041

View attachment 1716473042

How the hell did you figure that out! Niiiiice

I've wanted to do this for so long, stock 273 vs blown. Thanks DionR

 

[Killer6]

We've already had the discussion before about deciding between two of my cam choices: Cam Thoughts
To muddy the waters, I bought this solid FT cam:
Norris cam #356DMS 304/312* 244/258* .534/.517" 107 LSA Now it's between these two solid FT Cams, as I've pretty much eliminated the Hydraulic FT choice. One FT Cam is modern (Hughes) and will make more HP, but I'm afraid is going to beat the valvetrain to death. The other is an older "lazier" profile (Norris), but will be easier on the valvetrain. My rocker shafts are new, adjustable rocker arms with .080 hardened 5/16 pushrods. I know everyone loves to bench race, but I figured the dyno desktop would give me a better idea of how much power and powerband difference.

I have that, if You are meticulous and specific entering the cam specs, and fill in with accurate cyl head type & flow numbers....it will give You reasonable comparative iterations to help make other decisions. Be sure You are entering the carb cfm@"Hg correctly....... a 3310 Holley is 750cfm@1.5"Hg, but an HP 1000 Holley is rated at 2"Hg, so actually 866cfm@1.5"Hg....
The intakes & exhausts are close enough to show You trends, but are generic, i.e.; DP-STK./HP/MAX, etc., mannys/hipo or small-large-stepped headers, w or w/o cats or mufflers etc.
I heard DynoSim6 had issues that I haven't heard were resolved, PerformanceTrends may be a better program, I have no experience w/it. Whatever I may get next will allow Me to input runner length/CA/taper/volume, header primary dimensions etc......