To get a basic idea on RC nitro cars , have a look at these links:
http://www.instructables.com/id/Nitro-RC-Cars/
http://nitro-rc-guide.blogspot.in/
http://www.ehow.com/how_7508816_build-nitro-rc-cars.html
http://www.rcuniverse.com/forum/rc-car-general-discussions-179/10744636-homemade-nitro-fuel.html