Most of the big factories in Detroit have hard core racing programs. Imagine what would happen if one of those factories applied all that modern technology to something like a Midget engine. In a move that caught most of the industry by surprise, Chevy unveiled its all-new Midget racing engine at Indianapolis Motor Speedway recently. The new engine will be available to all USAC competitors through independent engine
Chevy engine ii midget. As this Chevy engine ii midget is brand new, the demand will initially outstrip supply until they become more available to the industry.
The Chevy Racing engineering and marketing staffs have really embraced the TSR racing programs, and the debut of this new engine is the start of another exciting new chapter in our relationship. The new methanol-burning ci Chevy engine ii midget. The lightweight, inline four-cylinder engine starts with an aluminum block and cylinder head.
The head has two valves per cylinder operated by pushrods and rocker arms, is equipped with mechanical fuel injection and utilizes an electronic ignition system. At the maximum displacement of cubic inches and in compliance of USAC rules, the Chevy engine runs methanol fuel.
The inline four aluminum block has dry iron cylinder liners; the kind that are simply put in place and usually retained by the application of the head. Also, a damaged sleeve can easily be repaired-quite possibly at the track. The engine uses a gear-driven mechanical roller camshaft and shares its 6. A bigger diameter cam will provide more finite cam designs, allowing for tuning to track applications.
With these components located outside the block, they are more accessible for Chevy engine ii midget. All the specs of the new engine fall in line with USAC rules which apply to a wide swath of engines including four and six cylinders, two-valve and four-valve cylinder heads, overhead valve, single overhead cam, and dual overhead cam valvetrain designs.
Yet, Chevy engines put a new twist on this familiar theme. While some series have adopted rules that tightly define virtually every component and dimension in a racing engine, the USAC Midget Series offers engine designers the freedom to innovate. Their innovative design of the new Chevy Midget racing engine is the product of imaginative thinking and advanced technology.
Just the kind of thing any successful racing operation needs. The new Chevy motor has an innovative architecture that improves its combustion efficiency, enhances airflow and lowers the center of gravity. Advanced technical resources such as computational fluid dynamics and solid 3-D modeling used to design GM production engines were also used to develop the Chevrolet Midget racing engine.
Computational fluid dynamics CFD are used to determine the flow of liquids and gases inside the block and heads while it is still in the design stage and on the computer. Recent advancements with this relatively "Chevy engine ii midget" form of computer work allow flows to be maxed out for efficiency and volume right from the start.
Water flows, for one example, are so effectively Chevy engine ii midget that they are now routinely held to a five degree variance anywhere in the engine. Solid
Chevy engine ii midget modeling helps in getting the products to the finish stage.
Instead of making the first cast prototype pieces with new, handmade molds, the newly designed parts are first made of layers of a type of paper.
Many of the growing pains of new casting are eliminated by making these paper versions first while still in the design studio instead of the casting plant. Once engineers are happy with the paper versions, they can sign off for the first metal pieces to be made.
Likewise, the casting plants are now working on a much faster turn around time than they have in the past. What used to take six months to bring about a part is now often delivered in less than three.
The major components that define the Chevrolet Midget engine package-the Chevy engine ii midget block, cylinder head and certain ancillaries-will be available to all USAC competitors.
Chevy engine ii midget Independent engine builders, such as Kistler Racing Engines of Fremont, Ohio, who supply the Chevy engines that power the two TSR entries, can then assemble engines using remaining internal and external components from their preferred suppliers. Our key design decision was to relocate the cam and pushrods to the exhaust side of the cylinder case.
This opened up the intake side of the cylinder head and allowed our engineers to optimize airflow without compromising the intake ports to accommodate the pushrods. Relocating the camshaft to the exhaust side also opened up new options in positioning the spark plugs and fuel injector nozzles. It also locates the camshaft lower in the chassis and offsets its weight to the left side of the
Chevy engine ii midget, which can be advantageous to handling. Speaking of weight, "Chevy engine ii midget" is being cagey "Chevy engine ii midget" what the new motor actually weighs.
When pushed for an answer, they say only it is within current, competitive engine weights. Traditionally, when factories give out stats such as weights and actual horsepower numbers, they are usually conservative at best. Still, the idea of over hp in less than pounds of four cylinders makes for a healthy motor.
GM also kept one eye on the type of racing where this engine would see duty. Midget racecars run without transmissions, and they race on tracks that range from 0. And then there are the costs involved. The Chevrolet brand has always stood for value, and the Chevy Chevy engine ii midget racing engine will continue this tradition.
TSR plans to complete its transition to Chevrolet power as soon as possible. To be one of the drivers to compete with the first-ever Chevy branded USAC engines will definitely always be one of my career highlights.
Midget racing has had a long and storied career of ups and downs in popularity.
As it seems to be surging once again, this new piece can help draw even more attention. Facebook Twitter Google Plus Email. Related Videos Stock vs. Box Detroit, MI http: Muscle Car Review Engine. Build a brute horse Chevy ci stroker Jim Smart - November 1, X Newsletter Sign Up.
The new Chevy Midget engine will be available to all USAC competitors the Midget series are based on the four-cylinder Chevy II engine produced "Chevy engine ii midget" the '60s. Folks, after 1 1/2 years of refurbishing a midget with a Chevy II, I finally was able to make a few laps at a local racetrack the other evening.
I wanted mainly to check oil press, oil temp, water temp, etc. Later I had a chance to take a few more laps so we put in a little.