 Custom Fuel Cell, Very different C4 roadracer |
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 Oct 18 2015, 03:32 AM
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ReEntryRacer  Group: Advanced Members Posts: 618 Joined: 8-December 04 From: British Columbia, Canada Member No.: 569  |
I've been asked to complete the build of a friend's 1990 'vette. It has now been caged by a local expert and it has serious performance with a Dart-blocked SBC with 540 HP. Did I mention it is about 2 feet shorter than a stock-bodied C4? It's body has been crafted by a CF expert to remain true to the original shape, but it is now MX5-sized! The owner can fit nicely inside the car, but my bulky 6' will not. And it currently has a small fuel tank of about 6 gallons. He had used it as an AX-only car until now. Somehow I will have to find space for as much fuel as possible, and still get it certified by SCCA.
It will need at least 30 minutes at an average race fuel consumption estimated with BSFC of .6 LB/BHP*HR. although real world numbers may be quite different. So, here are my initial jots on a napkin... .6 BSFC X 540 BHP = 324 LB / 2 = 162 LB / 6 LB/Gal = 27 Gallons! I will receive the car in a few days and then the tape measure gets warmed up... Does Fuel Safe or ATL make custom tanks with SFI approval? Are multiple-cell tanks legal? |
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Oct 18 2015, 02:43 PM
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Advanced Member Group: Advanced Members Posts: 288 Joined: 4-August 12 From: Roswell, GA Member No.: 142,803 |
Before you start working on the C4 Vette, your friend needs to check with the regional club racing officials to see if the vehicle is even certifiable. I say this for two reasons: first the scaled down version of the 1990 Vette if the wheelbase was altered; and second the custom cage work you described may not meet SCCA standards. Additionally, what class was the owner interested in - GT1 or ITE? Two very different classes with different rules on fuel cells. (ITE is a regional class so the owner must check with the region for the specific rules. GT1 is a national class and it's specifications are listed in the General Competition Rules.) (For GT1, the fuel cell rules start on page 98.)
I'm not sure that mulit-cell fuel tanks are legal in classes other than Stock and Touring if the original car came equipped with saddle bag tanks. Again, please check with the regional racing officials as they will be more up-top-date on what's legal and what isn't. Good luck! (IMG:http://www.frrax.com/rrforum/style_emoticons/default/beerchug.gif) |
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Posts in this topic
ReEntryRacer Custom Fuel Cell Oct 18 2015, 03:32 AM
ReEntryRacer Thanks for that.
We are in Canada. The CACC is ou... Oct 18 2015, 07:41 PM
dailydriver Just curious; are the front clip and/or the rear s... Oct 19 2015, 12:28 AM ReEntryRacer QUOTE (dailydriver @ Oct 18 2015, 05:28 P... Oct 19 2015, 04:54 PM 79T/A ATL will build you whatever you need. Bring the ch... Oct 19 2015, 12:33 AM Blainefab Fab a can that fits in the space available, Fuel S... Oct 19 2015, 09:34 PM ReEntryRacer QUOTE (Blainefab @ Oct 19 2015, 02:34 PM)... Oct 20 2015, 08:35 AM |
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