ChampCar Endurance Series

ChampCar Tech Desk

Official channel for ChampCar technical questions, interpretations, and VPI requests.

Before you submit a ticket

The Tech Desk is for rules clarifications and technical questions. It is not a post race tech line, a place to protest results, or a place to fish for how other teams built their cars.

Most questions can be answered by reviewing the current BCCR Rulebook. Please read the applicable section before submitting a ticket.

If your question is already covered clearly in the BCCR, your ticket may simply be answered with a reference to the rulebook section.

VPI request checklist

For all Vehicle Performance Index (VPI) requests you must include:

  • Year, make, model, and trim level
  • Engine size and engine horsepower
  • Drive type: FWD, RWD, AWD, or 4x4
  • Transmission type: automatic or manual
  • Car weight and all factory options that affect performance
  • A link to the vehicle on automobile-catalog.com or another site with full specifications if it is not listed there

Requests that do not include all required info and research will be denied without review.

2020-03-20 - Cage Backstay Question

Q.
Hi. Looking at a Mini Cooper this weekend that appears to have a somewhat unusual rear stay mounting for the main hoop. They tie into inner rear wheel wells just above the floor with a cross tube. Is this acceptable? The x-brace also connects from the end of the rear stays to the middle of the main hoop. From photos I received from the owner, the front section of the cage, door bars on each side and dash bar seem normal and ChampCar compliant.
Cage Backstay Image

A.
If the underlying structure is strong, it looks good from the pictures and we don't have a problem with the Backstays running to the shock towers.
There are additional bars in the image that will incur additional points.  (The horizontal bar between the shock towers)
Strut Bar