Nascar Engine Diagram
Nascar engines use the century old carburetor design to do this relying on engine vacuum to siphon fuel out of the carb s float bowls through jets of a precise diameter which determines the air.
Nascar engine diagram. Teams can and do take certain liberties with engine design but a few nascar rules are quite rigid. The design uses some features of other v8 s in the series most notably the high cam position in the block is similar to. The current limitations are designed to encourage the engine parity of vehicles which generate an average of about 850 horsepower. At the nascar cup series level teams are trying to get any extra horsepower they can.
These engines are so powerful that nascar forces member teams to restrict horsepower on certain race tracks fearing that a 200 plus mph crash might send debris hurtling into the grandstands. Earnhardt childress racing uses its engine development philosophy to find half one and two horsepower gains for its chevrolet r07 2 5 8l v8 engine. Nascar sprint cup toyota camry s use a toyota designed 358ci ohv v8 engine. Toyota s clean sheet engine developed for nascar racing.
As of 2014 nascar mandated specifications include a carbureted v8 engine with a maximum 5 9 liter capacity 358 cubic inches. The engine for example must be a carbureted v 8 with an iron block. Nascar places strict limits for instance on how engine cylinders are bored that is how they re made larger by removing material.