sc5080
Well-known member
a little lower than that, like about half way between shoulder top and elbow, with your arm at your side.
otherwise everything looks great.
Thanks for your interest and advice. Would 1" x .095" mild steel tubing be adequate for this?
While I'm sure you are aware of all the regulations the following is for anyone else that might be reading this and not knowledgeable in this regard. I have also listed the materials I used. Most exceed the minimums required and as a result the car will be a little heavy but still well under 2000 lbs with driver I think.
The SFI specs call for minimum 1" x .083" for the helmet bar (an exception to the minimum .118" wall thickness for round mild steel tubing.) I used DOM .134" wall throughout the frame except for the helmet bar and front "bumper" which I measured at 1" x .109". The rectangular frame sections are 2" x 3" x .134" wall, well over the .058" allowed for rectangular mild steel tubing. Roll bar and shoulder hoop are 1 5/8" OD, uprights, back brace and upper front rails are 1 3/8" OD and diagonals, crossmember and K member are 1 1/8" OD. The front diagonals are 3/4" OD.
I intend to have the chassis certified for 7.50 and slower and expect to be running in the mid to high 8's if all goes well.
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