I'm trying to find somewhere that will rent out timing gear.

I'm after a system to time a 1/4 mile and another to clock a vehicles top speed at the end of a given distance.

Why? well....... you'll see

1/4mile isn't to much of a problem, these G-meter thingies are meant to be accurate enough out of the box. Terminal speed can be done either with a GPS unit or by using the RPM and multiplying by the mph/rpm.

Or are you after something a little more specific???