Changed rear springs

I put some heavier springs on the rear of the Ranger because I noticed I was bottoming out with the softer ones. At the same track and worse track conditions I was able to knock .5 sec of my times. Now just to get some better shocks that are easier to adjust. went from an 8.51 in the 1/8th to a 8.01

Thats huge if it was only from the springs and not weather, fuel, boost, etc. related

That's all it was, just.changed springs. Didn't touch anything on the engine,even the fuel was the same that was in the cell from before.