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Author Topic: roll bar/cage  (Read 1218 times)

keyfoot

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    • 1993 mercury Capri xr2
roll bar/cage
« on: June 28, 2014, 01:32:02 PM »

Anyone have a roll bar or cage on their capri that still allows for the hard to be put on. And the soft top to still go up and down?

If so can you post some pictures.

and how much did it cost you ?

Thinking of getting one In  the future
« Last Edit: June 28, 2014, 10:34:19 PM by keyfoot »
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CapriXR2

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Re: roll bar/cage
« Reply #1 on: June 28, 2014, 09:30:35 PM »

Bump, also in need of a bar.
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keyfoot

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    • 1993 mercury Capri xr2
Re: roll bar/cage
« Reply #2 on: July 02, 2014, 03:11:48 AM »

Epic bump of desperation
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Rocketman

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    • 91 BPT AWD Capri & 1991 XR2
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Re: roll bar/cage
« Reply #3 on: July 02, 2014, 06:55:03 AM »

I've seen one functional roll cage, I think it was a red car from Washington state? It's changed hands a few times, I don't have any pictures of it though. It was a custom built cage, it allowed the soft top to be used but I'm not sure about about a hard top. It was built to spec for SCCA racing. $$$$

There's been a few "rollbars" fitted to a Capri, some have been adapted from a Miata, but they're purely for looks.
http://www.teamcapri.com/forum/index.php/topic,1865.msg6313.html#msg6313 this one is somewhere in between
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CapriTypeR

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Re: roll bar/cage
« Reply #4 on: July 02, 2014, 01:55:19 PM »

No bars that I know of that you can buy for the Capri that will function as a real "roll bar". It would have to be custom made. Anything you could buy that would fit the Capri would only function as a "show Bar", and provide no roll-over protection.

I had a "show bar in mine....Soft top worked fine, and although I never tries to mount a hard top, it should have gone on with no issues.

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Gaz

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    • 92 XR2, 96 Outback, 77 KZ650
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Re: roll bar/cage
« Reply #5 on: June 14, 2018, 01:02:34 PM »

APPENDIX C - SOLO® ROLL BAR STANDARDS
 Appendix C - Roll Bars
A. BASIC DESIGN CONSIDERATIONS
   1.    The basic purpose of the roll bar is to protect the driver in case the vehicle
rolls over. This purpose should not be forgotten.
   2.   The top of the roll bar shall not be below the top of the driver’s helmet
when the driver is in normal driving position, and shall not be more than 6
inches behind the driver. Exception: For Modified Category Specials (Sec-
tion 18.4), the bar must extend at least 2.0” (50.8 mm) above the driv-
er’s helmet in the normal seated position and a head restraint keeping
the driver’s head from going under or behind the roll bar is required. It is
strongly suggested that all roll bars extend at least 3.0” (76.2 mm) above
the driver’s helmet. In case of two-driver cars, both drivers must be with-
in the roll bar height requirement, however only one (1) driver must be
as within a removable close 6.0” as possible (152.4 OE hardtop mm) to the of which interior the b
 roll is equipped top bar.of In the a with closed car.
 a roll car bar/cage, or an open it car must with
 be
   3.    The roll bar must be designed to withstand compression forces resulting
from the weight of the car coming down on the roll structure, and to take
fore-and-aft loads resulting from the car skidding along the ground on the
   4.    The roll structure.
 two (2) t
 vertical members forming the sides of the hoop shall not be
less than f 15.0” (381 mm) apart (inside dimension). It is desirable that the
roll bar extend the full width of the cockpit to provide maximum bearing
area in all soil conditions during rollovers. The roll bar vertical members
a
 on tachment must formula be not points cars less and to than the other fifteen uppermost single inches seat main apart, cars chassis inside with member.
 a dimension, center driver at their position
 at-
   5.    An inspection hole of at least 3/16" (0.1875”, 4.75 mm) diameter must be
drilled in a non-critical area of a roll bar member to facilitate verification
r
 of wall thickness. This should be at least 3.0” (76.2 mm) from any weld or
bend.
d    7.       6.   It mm) should It is is recommended recommended thick.
 be at least 2.0” that that (50.8 roll steel mm) bars gusset be long coated plates on each only be leg used with and at a 3/16" light all welds. (0.1875”, coat of Gussets
 paint.
 4.75
If, however, a roll bar should be chrome-plated, it is recommended that the
structure be normalized.
   8.    B. Post MATERIAL
 or tripod types of roll bars are not acceptable.
After 09/22/1985, aluminum is not an acceptable alternate material. Cars
using aluminum roll bars or roll cages must file proof with SCCA® Solo® De-
partment that the structure was approved prior to 09/22/1985 as provided
in this Section.
2017 SCCA® National Solo® Rules— 215
Roll Bars - Appendix C
   1.    The roll bar hoop and all braces must be of seamless ERW or DOM mild
steel tubing (SAE 1010, 1020, 1025) or equivalent, or alloy steel tubing
(SAE 4130). It is strongly recommended that roll bars not be constructed
of ERW due to quality and strength concerns.
   2.    The size of tubing to be used shall be determined on the basis of the weight
and speed potential of the car. The following minimum sizes are required
and are based upon the weight of the car without the driver.
Vehicle Weight (lbs.)
 outside diameter Tubing Size x wall (min.)
 thickness (in.)
1.500 x 0.120
Over 2500
 1.750 x 0.095
2.000 x 0.080
1501 1000 - - 2500
 1500
 b
 1.625 1.500 1.375 1.250 x x x x 0.080
 0.095
 0.090
 0.080
Under 1000
 1.000 x 0.060
Dimensions are nominal. 0.005” (0.127 mm) variation in wall thickness is
allowed.
 t
   3.    Each mounting plate shall be at least 0.080” (2.03 mm) thick if welded and
plate 3/16" is (0.1875”, required f 4.75 for mm) bolted thick mounting if bolted. plates.
 A minimum of three (3) bolts per
   4.    C. All FABRICATION
 bolts and nuts shall be SAE Grade 5 or better and 5/16" (0.3125”, 8.0
a
    1.    mm) One continuous minimum diameter.
 length of tubing must be used for the hoop member with
smooth continuous bends and no evidence of crimping or wall failure.
r
    2.    D. All and BRACING
 welding will be subjected must be of to the very highest critical possible inspection. quality Arc with welding, full penetration
 particularly
heliarc, should be used wherever possible.
d    1.    roll It is bar recommended itself.
 that braces be of the same size tubing as used for the
   2.    All roll bars must be braced in a manner to prevent movement in a fore-
and-aft direction with the brace attached within the top one-third of the
roll hoop, and at an angle of at least thirty degrees (30°) from vertical. It is
strongly recommended that two such braces be used, parallel to the sides
of the car, and placed at the outer extremities of the roll bar hoop. Such
braces should extend to the rear whenever possible.
   3.    It is suggested that roll bars include a transverse brace from the bottom of
the hoop on one side to the top of the hoop on the other side.
216 — 2017 SCCA® National Solo® Rules
E. MOUNTING PLATES
 Appendix C - Roll Bars
   1.    Roll bars and braces must be attached to the frame of the car wherever
possible. Mounting plates may be used for this purpose where desired.
   2.   In the case of cars with unitized or frameless construction, mounting
plates may be used to secure the roll bar structure to the floor of the car.
The important consideration is that the load be distributed over as large
an area as possible. A backup plate of equal size and thickness must be
F. REMOVABLE used on the opposite ROLL side BARS
 of the panel with the plates through-bolted to-
gether.
Removable roll bars and braces must be very carefully designed and con-
structed to be at least as strong as a permanent installation. If one tube fits
inside another tube to facilitate removal, the removable portion must bottom
G. on each the INSTALLATION LESS such permanent joint. DESIGN
 The mounting, telescope ON CARS and section b
 at OF least must SPACE two be at bolts least FRAME must eight be AND inches usedFRAME-
 in to length.
 secure
It is important that roll bar structures be attached to cars in such a way as to
spread the loads over a wide area. It is not sufficient to simply attach the roll
bar a way to a as single to t
 be tube an extension or junction of of the tubes. frame The itself, roll bar not must simply be an designed attachment in such
 to
H. the structure ROLL frame. Considerable CAGES
 f such a way care as must be used to add as necessary to the frame
itself in to properly distribute the loads. It is not true
that a roll bar can only be as strong as any single tube in the frame.
a
 It fined is recommended in the current but Club not Racing mandatory GCR Section that all 9.4, cars Roll utilize Cages a For roll GT cage And as Pro-
 de-
duction I. ROLL Based BAR Cars, PADDING
 or Section 9.4.5, Roll Cages For Formula Cars and Sports
r
 Racing Cars.
Braces and portions of the main hoop subject to contact by the driver’s or
d Ensolite® passenger’s ness, must or be helmet, other padded similar as with seated material a non-resilient normally with and a minimum material restrained thickness such by seat as Ethafoam® belt of 1/2" and (0.50",
 har-
 or
12.7 mm).
2017 SCCA® National Solo® Rules— 217
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