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Custom Race Engine design and manufacturing

Custom engine design and manufacturing is our main focus at Elmer Racing. Our history is in extreme performance parts, as in our full billet 3 time world champion #Thor racing engine, with the highest power-to-mass ratio of any OEM circuit racing engine ever!
We also provide design and manufacturing support to other businesses for both racing and non-racing, series production and prototype/test engines.

Billet design and manufacturing

Billet Elmer Racing merge collectors

Our 304/304L stainless steel merge collectors are the most cost effective and durable options for turbo exhaust manifold manufacturing. So good in fact that they are also being used by customers on naturally aspirated engines! With over 250+ different designs available, we have most of your needs covered. Custom designs can be done also. Check our online RaceShop for some available examples!

Custom Billet components

We regularly help design and manufacture custom, complex shaped components for our customers. Intake manifolds with integrated bellmouths, flanges with built-in transitions, barrel throttle bodies, industrial components, and much more!
We're setup to be able to provide these services for a wide range of materials, hardened tool steel, magnesium, aluminum, stainless steel, we even machine wood and plastics for special orders.

Check out our online RaceShop, for some ideas of the kind of custom products we can make!

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CNC machining, and specs for Max Hel

We've now started 5axis CNC machining on Max Hel, and with that have preliminary specifications for the full race variant of this engine!
First billet engine for the Nissan GT-R. "Bolt-in" compatible with the VR38 engine. Preliminary Max Hel specifications:

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The Elmer Racing billet custom racing engine "Thor" is now officially the 3x back-to-back fastest unlimited class TimeAttack engine in the world!