How do you make a shuttle coater that speeds up withe every launch?

I would like to know since I have tried many ways and can't figure it out.

Download here : https://www.dropbox.com/s/fb8lj11261yqgbe/Custom Block Logic Builder (No Videos).nl2pkg?dl=0

I make a shuttle and shove the track ends together for a fake loop. The train will still crash if it goes too fast.

Thank you MrRC. Also, does it work with a coaster like Wicked Twister at Cedar Point?

Yes, but u don't need those cubes to make it work.