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guessimating

pwDave

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are there any computer programs that you can plug engine info into to possibly get some idea of the horse power that a certain combination of parts will produce under ideal conditions? there are several apps for guns that can tell you how fast, how far, mid range, and terminal power ft pounds and speed. does such a program exist for engine combos. PWDave.
 
No programs that I know of but there are a lot of people on this forum with built up engines of every variety. Tell us what you have and you will probably get a reliable estimate.
 
Okay, here goes, 76 440 thick main webs bored .030, 4.250 crank and kit from 440 source, edelbrock small port victor heads. compression is just under 13 to 1. .590 purple shaft @103.5 degrees. dual quad tunnel ram port matched to heads with two 750 edelbrocks. harlon sharp rockers(1.5) w/ billet dist. MSD 6AL box, msd wires, tti 2" headers, 3800 turbo action, w/a reverse manual valve body, dana 60 44" inch 5.13(too low, will be changed to 4.56) all in a 64 Plymouth tu-dor sedan, w/lite weight fiberglass doors,bumpers,hood,deck lid. I have built this with intent of making a good sounding, good running old car, the reason for the little cam is to make a fairly low RPM motor, 6000to6400 max. the small port eddys should build a LOT of port veloity to provide low end and still have plenty of flow for the top end. if it's not enough I can go to 1.6 rockers and still get some more. I'm planning on about 33 to 34 degrees of timing w/ race gas only. if any questions, just holler. Dave
 
I know a guy that used a Play Station game to calculate hp, tq, and even quarter mile times. That thing was right on. More accurate than the desk top dyno I bought.
 
i use Performance Trends. none of them are any better than the input data.
 
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