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

2020-03-20 - Fuel Cell Displacement Blocks

Q.
The listed stock capacity for our car is 16 gallons.
We would like to utilize a SFI 28.1 rated fuel cell for safety reasons.
After an exhaustive research process, we have discovered that a SFI 28.1 fuel cell with a capacity of 18 gallons is not available.

1. Can an SFI 28.1 Fuel Cell with an advertised 22-gallon capacity be installed that has an actual total capacity of 18 gallons?
2. If so, what does ChampCar Tech feel would be the safest and best mean(s) and method(s) for additional internal material(s) to bring the overall capacity to 18 gallons, thus adhering to the "stock capacity +/- 2 gallons" found in the BCCR?

 

A.
2020 BCCR v 3.0.0.
9.10.2.3. All fuel cells must have FIA-FT3 (or higher) or SFI-28.1 certification.

Effective 01Jan2023, All fuel cells must have FIA or SFI certification.


Pyrotect makes some 18 gallon FIA FT3 cells.
an example: https://90racing.com/products/pyrotect-pyrocell-elite- ... a925&_ss=r

Yes, you can run a 22-gallon fuel cell. 
There are fuel displacement products you can use to get down to 18 gallons.
Be prepared to show the displacement blocks at all times as tech may request proof of install.

Article Details

Article ID:
115
Date added:
2020-03-20 15:38:11
Views:
1,240
Rating (Votes):
(642)

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