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 Engine & Cooling
2020-03-20 - Intake Manifold Modification
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2020-03-20 - Intake Manifold Modification

Q.
If one were to:
1. Modify a stock, cast aluminum intake manifold by cutting length out of runners, would this cost VPI points?
2. Modify a similar manifold by cutting open the stock intake plenum, adding material between the two halves, and welding back together. Material points?
Assume it is the OE manifold for the car you are using

A.
1. No points
2. Material points

Be cautious about building a copy of an intake that exists as it will add points.
With the "2" intake modification, you would be best served to submit your plans to tech for approval.


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Article Details

Article ID:
118
Category:
Engine & Cooling
Date added:
2020-03-20 10:43:35
Views:
1,182
Rating (Votes):
(338)

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