Amichi,
Sounds like I missed an awesome weekend at mid-Ohio. Great job! I hope to
see some of you at VTR. So, the critical question is.... What is the date
for next year's Mid-Ohio event?
Now that my new TR3 engine is up and running I'll be autocrossing the car in
mid-July with a local Porsche club. I am also starting to think about some
track time. This would be instructional on-track training, not racing.
Unfortunately, (or fortunately, in reality) my open car must have a roll
bar. My car HAD a frame mounted, double hoop roll bar which was removed
sometime before I bought it. The frame rail still has the remnants of the
dual hoops. (no log book though)
I am thinking about installing a single hoop removable roll bar which would
come up through the occasional seat. Removable because my wife uses the car
to cart the kids around town on a regular basis and a permanent bar will be
a kid head banger, as well as not fit in with the normal usage the car sees
as a street car.
As a Mechanical Engineer, roll bar design seems pretty straight forward.
Before I reinventing the wheel though, has anyone every fabricated a
removable roll bar for a post 60,000 TR3A and still have drawings or
recommend (or have) a shop that can do the fabrication for me? I can either
have it installed by a local welder or get my old Miller Thunderbolt Arc
welder working again. Also, where can I find good guidelines for the
materials, thickness and diameters of pipe to use?
The bottom line is, what is the best way for me to get a decent (removable)
roll bar into my car at a reasonable price?
Thanks for any help you can provide,
Jack Brooks
1960 TR3A
1974 Norton 850 Commando
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