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

2020-03-20 - Miata Extended Lower Ball Joints

Q.
I'd like a value on extended lower ball joints since I'm not seeing these specifically in the BCCR and they are a pretty common aftermarket modification as well as standard on NASA Spec Miata. These are used to reach higher negative camber values similar to offset bushings (5pts per corner). They do not allow you to adjust caster like camber plates (10pts per corner).
Stock Miata Lower Ball Joint Extended Miata Lower Ball Joint

A.
Aftermarket extended lower ball joints, used on Miatas to increase negative camber, are 5 points per corner.


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