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.

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ChampCar ChampCar Tech Desk Knowledgebase Chassis & Roll Cage
2020-11-12 - Roll Cage Bars Behind Main Hoop
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2020-11-12 - Roll Cage Bars Behind Main Hoop

Q.
Does an arrangement where two tube are added to the backstay bars such that there is one diagonal, and one horizontal tube between the attachment points of the backstays satisfy this rule? See attached pdf for visual representation.
Does the horizontal tube have an additional points charge as a strut tower brace?  If so, do you consider shock absorber mounts as equivalent to strut towers?
Rear Shock Tower Brace Diagram


A.
Any horizontal bar, running between the back braces off the "B" pillar hoop, that is within 12 inches of the strut towers will be considered a strut brace.  Shock absorber mounts are equivalent for this purpose.

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Article Details

Article ID:
153
Category:
Chassis & Roll Cage
Date added:
2020-11-13 01:43:15
Views:
1,076
Rating (Votes):
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