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
ChampCar ChampCar Tech Desk Knowledgebase
Aerodynamics & Bodywork

Knowledgebase Aerodynamics & Bodywork

Articles in this category

2019-11-28 - Front Air Dam

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

1,123
(176)
2019-11-28 - BMW Bumper Covers

BMW 3-Series bumper covers Rule 4.7.6. Replacement of OEM Parts / Tech interpretation and enforcemen...

377
(141)
2019-11-28 - Radiator Ducting

Radiator Ducting Tech interpretation and enforcement is any ducting in front of the radiator is free...

577
(164)
2019-11-28 - Definition of a splitter

Splitter - 10 points Tech interpretation and enforcement is any non-oem horizontal aero component fo...

799
(260)
2020-01-10 - Rear wing width

Q 1.As I am about to order a new rear wing I wanted to confirm how wide I am able to go. Rules state...

508
(185)
2020-01-15 - Non OE Hardtop

Q. We damaged our hardtop at Laguna Seca and we are thinking about replacing it rather than racing w...

276
(179)
2020-01-20 - Added Splitter Materials - Canards

Q.Hello, the interpretation says that the splitter is a horizontal aero component. Does this mean th...

389
(151)
2020-02-27 - Miata hardtop

Q.Car: 1999 Mazda MX-5 MiataTreasure Coast Miata & Jeeps offers a lightweight Miata hardtop.

264
(180)
2020-02-27 - Wing Placement

Q.Can I get a ruling on what is considered "Front" for a wing location? Ideally, I would like to put...

211
(166)
2020-02-27 - Headlight Protection

Q.The BCCR addresses protection of taillight and brake lights as:9.9.6. All glass and/or plastic tai...

287
(201)
2020-03-20 - Aftermarket Front Bumper Cover

Q.Can I install an aftermarket bumper cover on my car?Example:  Aftermarket non-M style e46 cover

213
(156)
2020-03-20 - Rolled Fender Trim

Q.After rolling my fenders to comply with the 10 to 2 rule, can I add some edge trim to cover any sh...

349
(150)
2020-03-20 - Aero pan

Q.What are the width limits of an aero pan? Is it the extreme widths of the car like a wing? Is it t...

262
(183)
2020-03-25 - Rear glass/Lexan/Polycarbonate

Q.Need clarification on the rear window ru

316
(170)
2020-04-08 - Fastback Roof

Q.If I change out my hardtop for a fastback style hardtop, will this still be zero points? please se...

328
(173)
2020-07-27 - Official Miata Width

Q.Based in the rear wing width rule I am trying to get an official answer on the width of the OEM NA...

189
(0)
2020-10-19 - Engine splash shield replacement

Q.Can I replace the factory engine splash shield (lost) with like-material and dimensions? Basically...

143
(4)
2020-10-19 - Air Dam Angle

Q.The rules do not currently specify a a tolerance on how "vertical" the air dam must be. Other seri...

137
(1)
2020-11-12 - Side Skirts

Q.Sideskirts are listed at 10 points. That's total for both sides correct? A.10 points for both side...

100
(2)
2021-01-01 - Rear Wing Height/drop back measurement clarifications

Q.Rule as stated:Maximum wing height 12” above roof. Maximum wing drop-back 12” behind car. Would sa...

76
(1)
2021-01-03 - Repurposing Lexan

Q.Can I remove the lexan rear window and attach it to the trunk to act as an aero device for 0 point...

153
(2)
2021-01-03 - Lexan Fastback Window

Q: By rule we are allowed to run a lexan rear window. Can we re-locate that rear window to our fast ...

164
(1)
2021-01-04 - Splitter Ramps

Q.Would splitter ramps be considered part of the splitter (10pts)? Or would these be additional aero...

211
(2)

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