Arduino or sensor speed problems?

Projects General Guidance
3

if (wheelRevs == sector2){

And if you miss just one count?

(wheelRevs ought to be declared "volatile")

When I see stuff like this:

float s1fastestrun = 0; //sector times in fastest run - usd for calculating deltas to compare fastest run to current run
float s2fastestrun = 0;
float s3fastestrun = 0;
float s4fastestrun = 0;

I start to think "arrays".