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/web/rules.php
VPI requests require the year, make, model, trim level, engine size, engine HP, Drive type (FWD, RWD, AWD, 4x4), auto or manual transmission, car weight, and all options. Your request will not be answered if you do not include all of that information. You must use http://www.automobile-catalog.com for all of your information submitted. Include the link to the automobile catalog so we can quickly reference the data. If your car is not listed on that website, please link any website that has the info. If you do not include your research info above, your request will be denied.
Thank you.
The ChampCar Endurance Series Tech Team
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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...

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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...

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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...

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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...

2,324
(584)
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...

2,297
(317)
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 ...

2,118
(533)
2024-02-27-Passenger Seats

Category: Interior & Safety

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

148
(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...

187
(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...

221
(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 ...

363
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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...

283
(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...

412
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