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Driveshaft safety loops

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Old 05-06-2003 | 09:24 PM
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unknown_host's Avatar
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Driveshaft safety loops

Will my track require that I run a driveshaft safety loop on DOT BFG Comp T/A Drag radials? Anyone have any experience with how they hook at the track? Thanks,

Seth
Old 05-06-2003 | 10:02 PM
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86 IROC's Avatar
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From: FL
Car: 1991 Z28 - 2000 Z28
Engine: L98 - LS4
Transmission: 700R4 - 4L60E
Axle/Gears: 3.23's - 3.73's
AFAIK, any NHRA sanctioned track requires them on any car running 12.99 or quicker reguardless of the type of tires it has. When I got around 13.00 - my local track, OSD, got on my back about not having a DS loop.

As for the tires, you know that I like those as well - low 1.7 60 ft. times w/ P255/50-16's.
Old 05-06-2003 | 10:13 PM
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Originally posted by 86 IROC
AFAIK, any NHRA sanctioned track requires them on any car running 12.99 or quicker reguardless of the type of tires it has. When I got around 13.00 - my local track, OSD, got on my back about not having a DS loop.

As for the tires, you know that I like those as well - low 1.7 60 ft. times w/ P255/50-16's.


So Brian, technically I already need a driveshaft safety loop?
Old 05-10-2003 | 11:28 AM
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From: Richmond,Va
Car: 91 Z/28
Engine: 6.3 L98
Transmission: TH350 4500 STALL
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Yep alot of tracks are like that..if you have a slick or a drag radial type tire they want you to have a loop..just depends on the track..As far as the BFG drag radials hooking..i like them alot..had a 1.54 60ft on them so far..i recomend them
Old 05-10-2003 | 03:54 PM
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Track rules vary but by the book, anything running quicker than 13.00 needs a loop no matter what tires they use. When using slicks you need a loop if the car is quicker than 14.00.

The track rules decide what is a slick or not. Some say that if it's a DOT tire, ET Street, Drag Radial, Nitto etc, then it's a street tire, not a slick.

It's good saftey protection to have a loop. I even have one on my daily driven truck. Engine alone only runs 15.0. With NOS it ran low 13's on street tires. With the amount of torque it produces, I want the protection in case the front u-joint blows.
Old 05-12-2003 | 07:29 PM
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From: Hanover, MA
Car: Camaro
Engine: 305-150/254 combo
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Axle/Gears: Srange 12 bolt; 5.14 or 5.38
There are even a few of us who run a rear loop as well. After seeing one of our guys couple years ago have his T-flite tranny lockup and spiral the driveshaft until it pull out of both the tranny AND the loop it proceded to polevault his car at 115 mph. It used to be a pristine 66 Belvedere but afterwards it was plenty used up.
With the torque arm, it actually is relatively easy to add a rear loop. Just use a regular universal loop and attatch it to the arm ahead of the rear joint. Just a little added protection should you have a top end tranny problem.
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