/CPRO questions

Started by mergatroyd, November 26, 2017, 09:58:38 PM

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mergatroyd

Unibody car.

I plan on running this car at multiple venues, to include road racing. The floor is rusty as h, e, and a couple of hockey sticks, the roadracing org (24 hours of Lemons) requires a fairly traditional 6 point cage. I see other /Pro or /Alt cars with a significant foot protection section added to the cage. The rule book is unclear, showing a 4 point cage as adequate... what am I missing?
I have no idea what I'm doing... but it seems to be working!

SPARKY

More and more the bottom legs of the cage are tied together and the driver seat is attached to these lower members---ie the driver is inside of a cage.  If your car is as rusty as you say I would bet they will require it  I have seen it asked for on other unibody cars with out traditional frames even nearly new.
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

SPARKY

More and more the bottom legs of the cage are tied together and the driver seat is attached to these lower members---ie the driver is inside of a cage.  If your car is as rusty as you say I would bet they will require it  I have seen it asked for on other unibody cars with out traditional frames even nearly new.
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

mergatroyd

Thanks, Sparky.

I did see a bottom cross bar in the back of someone else's cage (on a Ghia). His cage pictures show my other concern, too... the extension of the cage into the footwell. I have actual unibody car there, where he has a "removable" shell.

One of my team members can only use top-swing pedals, and I'm trying to keep the stock pedal arrangement... which would interfere with the front cross bar in the footwell of the Ghia. There's also a bit of transmission tunnel in the way of most any other design I have thunk up over the last week or so. This car is front engined, RWD.
I have no idea what I'm doing... but it seems to be working!

QikNip

Quote from: mergatroyd on November 26, 2017, 09:58:38 PM
Unibody car.

I plan on running this car at multiple venues, to include road racing. The floor is rusty as h, e, and a couple of hockey sticks, the roadracing org (24 hours of Lemons) requires a fairly traditional 6 point cage. I see other /Pro or /Alt cars with a significant foot protection section added to the cage. The rule book is unclear, showing a 4 point cage as adequate... what am I missing?

I think you're misinterpreting or maybe missing the word "minimum" in Rule 3.B.1,paragraph three. I have a six point cage with a full containment Kirkey Land Speed Seat (in a unibody car). It's passed tech multiple times with both SCTA and ECTA. My roll cage is basically a SCCA compliant road race design. As I understand the rule, if you aren't using a full containment seat, you would have to install a dragster type driver containment set of bars supported by floor bars beneath the seat as shown in Figure one.
Rick
138.0 G/CPRO 4/18 Arkansas Mile Challenge Record
145.632 G/CPRO 8/17 Bonneville Record
149.825 G/CPRO 8/18 Bonneville Record
142.443 G/CPRO 9/20 Loring 1.0 Mile Record
156.343 G/CPRO 9/20 Loring 1.5 Mile Record

mergatroyd

I think I got confused with 3.D.3 and the fancy roll cages. QikNip has the answer, thanks!
I have no idea what I'm doing... but it seems to be working!