Is it cranking?
If yes it is 1 of 4 things
Fuel, spark, air or compression
Dd you remove fuel line off injector rail to confirm fuel is making it to that point?
If so it could be fuel injectors get a mechanics stethoscope and listen to hear if you can hear injectors clicking. If you can, get a spark tester and connect to spark plug wire boots.
Then get back to us.
You say because; race car.
I say because; economy car.