RC Monster Speed Estimate Calculator

[BrianG]

Well, the thing that's hurting your speed is the HB diff ratio of 4.3:1. Can you use a smaller spur and/or a larger pinion? That's the only way I can think of to increase your speed other than using larger tires or slightly higher voltage. Even if the spur/pinion ratio seems off, it's really the final drive ratio that matters...

BTW: You can use the export button on that page, which will open a window that will allow you to copy/paste the results into your post.