http://www.supracentral.com/hosted/junior/4stroke.xls
has some basic functionality, it's not too fancy, but it'll help you guys out with some basic stuff like compression ratio, piston acceleration, piston weight, etc.
I'll keep updating it, but I wrote it in abit of a hungover stupor and I don't wanna get into the deeper stuff without being able to think abit better.
anybody else who has stuff they wanna add, either go ahead and add it, or PM me and I'll do what I can. I do this stuff for a living in 2-strokes, so I know a fair amount about it, just takes time to write. But for real, it probably takes me less time to write this stuff than it takes a PS guru to make somebody a signature, so it's not that big a deal.
stuff that I'll be adding later:
- TDC CS temperature
- Dynamic VE calculations based on absolute pressure
- Estimated HP/Tq calculations based on flow.
- mean piston speed calculator
- rpm calculator based on given piston speed.
___________________________________________________________
Instructions for use.
fill in the values on the left, don't touch the ones on the right.
___________________________________________________________
Values:
If somebody wants to fill me in on the proper dimensions, that'd be fantastic, I just kinda guessed on some of them, I need head cc value, conrod length (center to center) piston dish volume (the volume of the "eyebrows")
Values are all metric, I'm canadian and I think in metric, I'll build in a converter later if there's big demand for one, I don't really know if anyone cares tho, since the car is built metric, I think it'll probably be ok as it is.
has some basic functionality, it's not too fancy, but it'll help you guys out with some basic stuff like compression ratio, piston acceleration, piston weight, etc.
I'll keep updating it, but I wrote it in abit of a hungover stupor and I don't wanna get into the deeper stuff without being able to think abit better.
anybody else who has stuff they wanna add, either go ahead and add it, or PM me and I'll do what I can. I do this stuff for a living in 2-strokes, so I know a fair amount about it, just takes time to write. But for real, it probably takes me less time to write this stuff than it takes a PS guru to make somebody a signature, so it's not that big a deal.
stuff that I'll be adding later:
- TDC CS temperature
- Dynamic VE calculations based on absolute pressure
- Estimated HP/Tq calculations based on flow.
- mean piston speed calculator
- rpm calculator based on given piston speed.
___________________________________________________________
Instructions for use.
fill in the values on the left, don't touch the ones on the right.
___________________________________________________________
Values:
If somebody wants to fill me in on the proper dimensions, that'd be fantastic, I just kinda guessed on some of them, I need head cc value, conrod length (center to center) piston dish volume (the volume of the "eyebrows")
Values are all metric, I'm canadian and I think in metric, I'll build in a converter later if there's big demand for one, I don't really know if anyone cares tho, since the car is built metric, I think it'll probably be ok as it is.
There is a reason I'm not a rocket scientist!