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      01-25-2025, 07:11 PM   #3617
kolosy
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Drives: over potholes
Join Date: Dec 2008
Location: Chicago

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Quote:
Originally Posted by dogbone View Post
I can't say specifically what class my cage would work for as I don't race wheel-2-wheel. I only do time attack and HPDE. It was built in 2015 to meet the NASA spec. It's a fairly basic 6-point cage with gussets on the A-pillars. Plinth boxes were used on the main hoop, but not in the footwell area. Probably the most unusual feature of the cage is the NASCAR-style door bars. I wanted bars that flared outwards to the skin of the door, as opposed to the common X-configuration that just goes across the door opening. I rarely see NASCAR door bars on other cars at the track, but I think it was absolutely the way to go. None of the shock towers were tied into the cage. And the cage does not penetrate the firewall.

Global Time Attack, NASA TT, SCCA TT, 7 PCA chapters around the country and all other organizers have been fine with the cage. In fact, no governing/inspection entity ever even made a single comment about it.

What kinds of competition do you plan on doing with your car?
Thanks, that’s helpful. Part of my issue is that I’m doing this build without a specific class in my sights. Realistically I don’t think I’m going after w2w, but rather tt/ ta events. Scca is bigger in the Midwest than nasa, so probably need to focus on those. Good to hear that you’re not having issues there.

When you were building your cage, did the builder have an opinion on the nascar bar s bends being close to the center of the span of the bar? I asked for nascar bars and my guy wants to send them through the b pillar instead of around.
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Current '20 AG X7M50 (daily + track tow), M4 GTS (track), '21 X3 M40i (wife)
Recent Past '11 E90 M3 (track), '21 DG X5MC, '22 BG G82, '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3

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