Rollcage Question?

[JohnW8]

If
windshields or rear windows are non-OEM glass (e.g. – Lexan, etc.) then the clip and/or straps are required.

 Three (3) clips (3 inch x 1 inch x 1/8 inch) shall be bolted or riveted to the body at the top of the windshield.

 Two (2) clips (3 inch x 1 inch x 1/8 inch) shall be bolted or riveted to the cowl and extend over the bottom edge of the
windshield. Clips shall be spaced a minimum of twelve (12) inches apart.

 It is recommended that three (3) one (1) inch wide strips of steel or aluminum be installed behind the windshield to
support it from collapsing inwards if it becomes damaged. The rear window shall be secured with two (2) metal straps
(1 inch wide x 1/8 inch thick) bolted or riveted to the body at the top and bottom of the rear window.

Clips are mandatory, bar is recommended, but optional

Hope that helps griffin

Be sure the class you decide to build your car too allows Lexan windsheilds before you remove it.

[chuck schultz]

I jumped the gun and assumed he wanted to run in a solo class. Solo classes don;t require a full cage for HC. GCR classes do. What class are you wanting to run Griffin?

I'm still confused about the bar vs. cage discussion. Here is the complete wording of the preamble of section 11.4 in the Hillclimb rules. Note the sentence that I've highlighted - this seems to say that if your car is otherwise GCR legal for a Club Racing class other than the ones listed (GCR classes GT1, SPn, Fx, Sx, as well as other non-tintop GT or Prod cars, in addition to hillclimb specials) it is only required to have a bar.

---------- begin quoted text ----------
11.4. HILLCLIMB (LEVEL 4)
Roll cages (as specified in the GCR) are required for the following classes: GT1, Specials, Super Production, all Formula classes,
all Sports Racer classes, open GT, and open Production vehicles. In these vehicles, the roll cage structure must meet current
GCR requirements for the specific class. If the vehicle does not fall into a Club Racing class, the cage should be prepared to the
GCR equivalent or greater (for example, a tube-frame Special car should be compared to a GT class cage, while a street-driven
car that ends up in Special because of odd modifications could be comparable to a Production or IT cage).

All other classes at Hillclimb (Level 4) Time Trials events are required to have a minimum of a roll bar that meets the description
in this section of the TTR.

If a car is running in a Vintage or Historic class and prepared to those specifications, they may run only a roll bar if no cage was
used at the time the car was originally raced. This applies to all the cars with cage requirements, including Formulas (cars) and
Sports Racers. Competitors are encouraged to use full roll cages if at all possible. The purpose of this tolerance is to allow for
original race cars to be raced in original form (or as close as possible) without devaluing the vehicle by installing a full roll cage.
This shall NOT be interpreted to apply to kit cars, special constructions, replicas, or any car that has been significantly modified
from its condition as originally raced. Vintage and Historic cars may upgrade to current tires, batteries, incidental items, and
other unavailable items to return the car to racing condition.
---------- end quoted text -------------------

Then, of course, for flat track TT, there's this simple sentence -

11.3. TRACK TRIALS (LEVEL 3)
a minimum of a roll bar meeting the requirements of this section of the TTR shall be required in all cars.

I don't have a dog in this hunt, yet, but I'd like to hear an answer from a scrutineer before I do.