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Driveshaft loops

Old 11-10-2018, 07:58 PM
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So, if all goes according to plan, my car will be fast enough to get me booted from an nhra track for safety regs.

however, in an attempt to NOT have this happen, and extend my life expectancy, i need to put safety loops in. The regs are fairly straightforward. Howlever, the application in a miata isn't something that i havw had much luck searching.
my understandingis that i need driveshaft and cv axle loops due to slicks and an engine swap.

anyone have pictures/experience?
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Old 11-11-2018, 03:08 PM
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I remember that I concluded only driveshaft hoop is needed, but I don’t recall why. I am thinking a 3” or 4” SST welded pipe as that will be lighter than 1/8” x 2” strap. Welded pipe only has to be 1/16” x 1”. It will require unbolting the driveshaft, however.

Thought is to tie the loop over to the PPF via pieces of same pipe.

Last edited by DNMakinson; 11-11-2018 at 05:09 PM.
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Old Yesterday, 10:53 AM
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Id be fine removing the driveshaft to remove the loop.
unfortunately I don't have a ppf to attach to, and my butterfly brace probably doesn't count as durable enough to suffice as its only 1x1x1/8 angle and square tube.
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Old Yesterday, 10:55 AM
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This. Front u joint just above the x.
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