1968 Camaro "Badmotorfinger" v2.2

[Sieg]

Originally Posted by Flash68

I do appreciate and welcome this discussion.

I know you do.
Greg's rear loop bracing grabbed my attention as a good start, I'm far from an engineer or cage expert though. Sutton and Alston appear to know them well.


If the cage, seat, belts, and column all do their job in a "substantial" event that's reasonable safety.

[Flash68]

Originally Posted by Sieg

I know you do.
Greg's rear loop bracing grabbed my attention as a good start, I'm far from an engineer or cage expert though. Sutton and Alston appear to know them well.


If the cage, seat, belts, and column all do their job in a "substantial" event that's reasonable safety.

I would like to get my cage checked out and evaluated at some point. The previous owner took the car to a fab shop and asked them to build him an SCCA cage... I just don't know exactly how well it passes muster.

Greg's cage is very nicely done it appears.

If Brett is able to complete the front tie-in, which I am sure he is capable of, then I think I will be pretty satisfied with my cage front to back.

[Sieg]

Originally Posted by Flash68

If Brett is able to complete the front tie-in, which I am sure he is capable of, then I think I will be pretty satisfied with my cage front to back.

My guess is Brett will know if it's structurally right or wrong.

[Ron Sutton]

This is a good conversation !

[intocarss]

FROM 2001 SCCA FOURM

some more info, from another thread in the Technical Forum, about Roll Cages...

6. Material:
A. Seamless, or DOM (Drawn Over Mandrel) mild steel tubing
(SAE 1010, 1020, 1025) or equivalent, or alloy steel tubing
(SAE, 4130) shall be used for all roll cage structures. Proof
of use of alloy steel is the responsibility of the entrant.
B. Minimum tubing sizes (all Formula, Sports Racing, GT, and
Production Category automobiles, and all automobiles
registered prior to June 1, 1994) for all required roll cage
elements (All dimensions in inches):
Vehicle Weight Material
Without Driver Mild Steel Alloy Steel
Up to 1500 lbs. 1.375 x .095 1.375 x .080
1500-2500 lbs. 1.50 x .095 1.375 x .095
Over 2500 lbs. 1.50 x .120, 1.50 x .095
1.625 x .120,
or 1.75 x .095
C. Minimum tubing sizes for (all Showroom Stock, Touring and
Improved Touring Category automobiles registered after June
1, 1994) for all required roll cage elements (All dimensions in
inches):
Up to 1500 lbs 1.375 x .095 DOM / Seamless / Alloy
1501-2200 lbs 1.500 x .095 DOM / Seamless / Alloy
or 1.500 x .120 ERW
2201-3000 lbs 1.500 x .120 DOM / Seamless / Alloy
1.625 x .120 DOM / Seamless / Alloy
1.750 x .095 DOM / Seamless / Alloy
or 1.750 x .120 ERW
(American Sedans may construct to these
specifications regardless of weight.)

3001-4000 lbs 1.750 x .120 DOM / Seamless / Alloy - No
ERW
Over 4000 lbs 2.000 x .120 DOM / Seamless / Alloy - No
ERW
Main hoop: 4 bends maximum, totaling 180 degrees ± 10
degrees.
Front hoop: 4 bends maximum or Front downtubes: 2 bends
maximum.
Rear hoop supports: No bends.
If any of the above bend requirements cannot be met, all
components of the roll cage shall be fabricated from the tubing
size(s) listed for the next heavier category of automobiles.
D. For purposes of determining tubing sizes, the vehicle weight
is as raced without fuel and driver. The minus tolerance for
wall thickness should not be less than .010" below the nominal
thickness. Improved Touring roll cage tubing sizes are to be
calculated based on the published vehicle weight minus 180
lbs.
E. An inspection hole at least 3/16 inch diameter shall be drilled
in a non-critical area of all tubes with a specified size to
facilitate verification of wall thickness.


PIC OF CAGES
http://images.search.yahoo.com/searc...egal+roll+cage

[Flash68]

If anything I will probably follow as closely as possible the rules & regs for AIX. I may try to run this car in that class sooner or later, but of course I will be at a major disadvantage in the weight category. Everything else is looking decent and Jake's subframe is an approved subframe (the class requires stock subs or an approved aftermarket bolt in version)

http://www.google.com/url?sa=t&rct=j...51156542,d.cGE

Originally Posted by Ron Sutton

This is a good conversation !

I agree!

[MX145]

A lot going on over here lately. Glad to see you're making progress Dave!

[Ron Sutton]

When you do you get your bad mamma jamming engine back in the car ?