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.

Open BCCR Rulebook Tech Desk Home

The ChampCar Tech Desk is the official resource for race teams needing answers on rules, safety, technical compliance, and Vehicle Performance Index (VPI) classifications. Our specialists provide authoritative guidance based on the ChampCar BCCR rulebook to ensure fair, competitive, and safe endurance racing.

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Knowledgebase

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2020-03-20 - GT40/GT40P & Cobra/Explorer Intakes

Category: Engine & Cooling

Q.I have previously cleared this with Mike C so I want to re-clarify that for a 1993 Cobra engine th...

20,716
(425)

2020-01-24 - ESS Brand Fire Systems

Category: Interior & Safety

As of January 1st, 2020 all fire suppression systems must be SFI or FIA certified and inspected ever...

3,541
(342)

2020-01-14 - BMW E46 heater bypass kit

Category: Engine & Cooling

Q.Bimmerworld offers a kit to plug the cooling lines normally routed to the heater core (PN 100.64.5...

3,118
(527)

2019-11-28 - Front Air Dam

Category: Aerodynamics & Bodywork

Air Dam - 10 points Tech interpretation and enforcement is any non-oem vertical aero component is an...

2,951
(341)

2019-11-28 - Hand Tool Mods

Category: Engine & Cooling

Tech interpretation and enforcement is that any work done to an engine with a grinder, Dremel or fil...

2,919
(637)

2020-01-10 - Miata JDM Swaps

Category: Swaps

Q.I wanted to confirm that a JDM Mazda Miata engine (99-00) is allowed under the swap rules. It was ...

2,908
(822)

2024-02-27-Passenger Seats

Category: Interior & Safety

Q. Does ChampCar allow passenger seats in competition vehicles during the race?A. During practice da...

631
(0)

2024-02-13 Throttle Body Cable TO Drive by Wire

Category: Engine & Cooling

Q. What is the ruling on going the opposite way of the rule below? Going from a cable TO a DBW.4.7.3...

702
(0)

2024-1-30-Tubular rear subframe

Category: Chassis & Roll Cage

Q: There is a current rule for Tubular Front subframe/K-member being 10pts (bolt on only). Would thi...

764
(0)

2023-06-08 - Headlights

Category: General

Q:Hello, I have a single light bar that I've used for any champcar race that has the possibility of ...

875
(1)

2023-06-08 - Kevlar Points

Category: General

Q:Is handlaid Kevlar is the same cost in points as fiberglass.A:Yes 3 points per square foot Verifie...

736
(1)

2023-05-16 - Schrader Valves

Category: Suspension

Q:We are looking at using a non adjustable shock. To my understanding this rule allows a rebuildable...

900
(1)
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