If you need to calculate the long or short edge on a pie cut bend, this is the calculator you need, input the required information and the dimensions are instantly displayed for you to start your fabrication.
If you need to calculate the length of exhaust runners for an equal length manifold, then the calculator is above is what you need! It can calculate the length of up to 8 runners at once, more can be added if needed! Input the centre line radius of the tubes you're using, then add the various bend angles you've used and length of the straight sections as you go through each runner, the main page will then show you the length of each runner with color changing cells to highlight the longest to shortest runner in the system.
If you need to calculate the length of exhaust system for a pulsed exhaust, then the calculator is above is what you need! It can calculate the length of up to 4 exhaust pipes at once, Input the centre line radius of the tubes you're using, then add the various bend angles you've used and length of the straight sections as you go through each each separate system, the main page will then show you the length of each pipe with color changing cells to highlight the longest to shortest in the system.