ChampCar Tech Desk

The tech desk is used to ask technical questions and is not to be used as a post race tech line or to phish for how others built their cars.
Please reference the BCCR as most questions submitted to the TechDesk can be answered by reading the BCCR.
You can download the BCCR here: https:champcar.org/rules

2021-01-01 - Overbore Engine

Q.
If we build our engine 40 over - will that push us into EC, or cost us points? If points, how many? Thanks in advance.

A.
If the overbore you stated is within factory rebuild specs and uses stock pistons, those to items would be legal

if the overbore has to have aftermarket pistons, then the engine is permitted in E.C class

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