DynoSim combinations
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*This page will show horsepower and torque results using different combinations of parts.... | *This page will show horsepower and torque results using different combinations of parts.... | ||
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| + | *OK, first things first. I have to agree that the DynoSim results sometimes seem optimistic, but consider this. The software is configured with the premise that the hard parts will be tweaked by the builder, the build dimensions will be blueprinted to the loose side and the final tuning will be spot-on. There's an old saying in hot rodderdom, "Loose is fast". | ||
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| + | And when I run a sim, I change things around considerably to get to the final figures. It will take me an hour or better to do it properly on just one motor. You may have seen, sometimes I will include verbage like "tried 6 different cams, retarded 'em, advanced em', 3 different manifolds, 4 different static compression ratios, etc." Just changing the cam requires runnin it straight up, advancing 2 degrees, then 4 degrees, then retarding it 2 degrees, then 4 degrees. So I have 5 different sets of figures just for 1 cam. Do that with 6 different cams and you have 30 sets of numbers.....just for the cam. Now, multiply that times different manifolds, different static compression ratios, etc. and you can see where it is a time-consuming task to sim a motor. But that's who I am. If I can't do it right, I won't do it at all. You can rest assured that when I post a sim, the motor has been tweaked to within an inch of its life. It's as good as it's gonna get with the parts used. Use different parts and you will get a lesser result. Anyway, that's probably why some fellows question my numbers, because they've never done what I've done with the software. Most people don't have the time or patience to do it the way I do, but I'm retired, have the time and patience and like nothing better than to start with a "clean sheet of paper" and build a motor. | ||
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| + | I have checked the results I get against real dyno pulls and this DynoSim has shown to be within 2% of real. Not bad in my opinion. I'm seriously considering upgrading to DynoSim5 and an add-on cam file. I have 800 cam files now, but the add-on would give me 6000 files. I was dragged kicking and screaming into the computer age, but I'll tell you, there's nothing any more fun than dinkin' on this thing. Well.....there was that time in New Orleans, but that's a whole 'nuther story | ||
*355 Gen I Chevy street motor, 453 HP, 475 ft-lbs torque. | *355 Gen I Chevy street motor, 453 HP, 475 ft-lbs torque. | ||
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