Is 2 drive shaft saftey loops neccesary?
12-23-2003, 03:55 PM
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Is 2 drive shaft saftey loops neccesary? Hello everyone.Is 2 drive shaft saftey loops better to get then one?1 for each U joint.And at what ET 1/4 is it neccesary to have a saftey loop? THANKS AND HAPPY HOLIDAYS 
12-23-2003, 04:02 PM
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your only required to have one no more than 3" from the center of the front u joint. and it's required any time your running slicks or 13.99 i'm not positive on the et
12-23-2003, 05:11 PM
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Originally Posted by villain72
your only required to have one no more than 3" from the center of the front u joint. and it's required any time your running slicks or 13.99 i'm not positive on the et
Well i run 13.80 And it is not required.
12-24-2003, 02:25 AM
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Originally Posted by 9833211
Well i run 13.80 And it is not required.
well maybe your track doesn't enforce it but yes it is required for 13.99 and quicker for nhra as stated in the rule book.
12-24-2003, 11:28 AM
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Actually, the measurement is no more than 6", and my local track lets cars run low 10's with no rollbar. So...
But anytime you're running a stock driveshaft with drag radials or greater, it's a good idea. I've seen the shafts pretzel, and I've seen loops protect the floor pans.
-Andrew (even my friends who don't have rollbars - run loops
)
But anytime you're running a stock driveshaft with drag radials or greater, it's a good idea. I've seen the shafts pretzel, and I've seen loops protect the floor pans.
-Andrew (even my friends who don't have rollbars - run loops
)
12-24-2003, 02:35 PM
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I don’t know whether there have been any recent changes but the cutoff used to be 12.99 on street tires and 13.99 if you are running slicks. For 1/8-mile tracks, it was 8.14 on street tires.
Years ago I saw a car snap the front u-joint. The drive shaft dropped down, dug into the pavement and catapulted the back of the car a couple of feet in the air. He was lucky the car didn’t hit the wall or even roll. Don’t take chances; get a loop even if your track doesn’t enforce the rule.
Years ago I saw a car snap the front u-joint. The drive shaft dropped down, dug into the pavement and catapulted the back of the car a couple of feet in the air. He was lucky the car didn’t hit the wall or even roll. Don’t take chances; get a loop even if your track doesn’t enforce the rule.
Last edited by Mr Ed; 12-24-2003 at 02:37 PM. Reason: to correct sloppy typing
