C3 virtual Dynamometers

[Bryan Adams]

Does anyone know of a program or web site that I can plug my engine build into and have it tell me the Horse Power / Torque and all the good stuff?

Engine: 454
Split Moline end caps to convert to a 4 bolt main
Bored .30 over
10 / 10 crank dyno balanced on build.
Deck plained
Flat top notched pistons
Older Chevy " peanut " heads
3 way sodium filled valves
double roller timing chain
rocker rollers
hooker headers and side pipes
High rise eldebrock intake manifold
750 double pump holly
Eldebrock 510 lift 500 duration cam
accell MSD ignition
Munci M20 4 speed tranny

And a alcohol based NOS system. (EVERYTHING IS BRAND NEW)

I will never push it hard but interested in what she would do.....

[Clem Z.]

go to www.chevytalk.org

there are posters there that will "run" a dyno test for you.

[Duke W.]

Re: C3 virtual Dynamometers

In order to get accurate results, you need to know head flow, actual true CR, camshaft details, exhaust system backpressure, inlet system details, etc.

Most programs only simulation SAE gross on a dyno, and SAE net with the engine installed in the car with the vehicle exhaust system and accessories can be much different.

For this reason I prefer the Engine Analyzer program, which can simulate SAE net. It also takes some experience using these programs and correlation with actual dyno tests to refine your models.

The best way you can find out what your engine is doing is run it on a chassis dynamometer.

Duke

[David B.]

Re: C3 virtual Dynamometers

I use the "Dyno 2000" program and am very satisfied with it. Besides telling you the HP and Torque (very accurately according to some magazine evaluations), it is really useful in making choices in planning an engine built (cam, CR, heads, etc.). I also modeled a friends engine (383 stroker) on it prior to the build and it actually dynoed right on target with the Dyno 2000 prediction when built. Good program - also there are many free downloads of plug-in information for cams and heads available at various websites.

[Mark #28455]

peanut port heads?

They are great heads for low RPM torque, but in a 454 application, they're all done by about 4000 RPM. If you're adding NOS, wouldn't you do better with a set of 049 or 781 casting oval port heads?

Mark

[Chris Ward]

Re: peanut port heads?

"I will never push it hard but interested in what she would do....."
There's your answer, which begs the question, why bother with the rest of the stuff if you're not gonna 'push it hard'? Is it just for lookin' at?