Update on driveshaft loops
Thread Starter
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Update on driveshaft loops
Just talked to the fabricator that is building the driveshaft loops. There were some delays due to him getting married... I told him that was no excuse and he's a slacker. :lol:
The loops are now built and are off for the hard anodizing. He said he got a better price by having them done with another batch so the color is more of a chrome/blueish look. Not quite sure about the exact color but pics are coming. They are due back to him on friday and he promised pictures of the kit (including mounting HW) as well as some pics of one installed. I'll post as soon as I receive the pictures.
He said they have a new design that is more adjustable than the old one. It accomodates different tailshaft heights, and is installed without removing the driveshaft. Only modification to the car is drilling of a few 3/8" holes in the crossmember for the mounting bolts.
The loops are now built and are off for the hard anodizing. He said he got a better price by having them done with another batch so the color is more of a chrome/blueish look. Not quite sure about the exact color but pics are coming. They are due back to him on friday and he promised pictures of the kit (including mounting HW) as well as some pics of one installed. I'll post as soon as I receive the pictures.
He said they have a new design that is more adjustable than the old one. It accomodates different tailshaft heights, and is installed without removing the driveshaft. Only modification to the car is drilling of a few 3/8" holes in the crossmember for the mounting bolts.
Drifting
Joined: Dec 1999
Posts: 1,462
Likes: 1
From: Reno nevada
Re: Update on driveshaft loops (zwede)
I was looking for something out on http://www.tomsdifferential.com I came across the half shaft loops and it sure looks like what norval and a few of those guys were refering to as their 6 link setups.
Are you doing this for NHRA rules? This is just a question because I don't have an NHRA rule book.
How long does a drive shaft have to be before it needs a loop? Local rear engine dragsters have short drive shafts without loops.
Are you doing this for NHRA rules? This is just a question because I don't have an NHRA rule book.
How long does a drive shaft have to be before it needs a loop? Local rear engine dragsters have short drive shafts without loops.
Thread Starter
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
Re: Update on driveshaft loops (Lt1er)
These somewhat resemble the halfshaft loops on Toms, but they are mounted to the tranny crossmember and the loop goes around the front of the driveshaft (Tom's appear to go around the middle of the halfshafts).
The fabricator is an avid dragracer and says he built them to comply with NHRA specs.
I don't know how long the shaft needs to be before NHRA requires a loop. I always heard that any car going faster than a certain ET needs one. Personally I'd just feel better with a loop as the fiberglass floor on the early C3 isn't going to slow down the shaft much if it comes loose.
The fabricator is an avid dragracer and says he built them to comply with NHRA specs.
I don't know how long the shaft needs to be before NHRA requires a loop. I always heard that any car going faster than a certain ET needs one. Personally I'd just feel better with a loop as the fiberglass floor on the early C3 isn't going to slow down the shaft much if it comes loose.
Intermediate
Joined: Jun 2003
Posts: 28
Likes: 0
From: Geneva Oh
Re: Update on driveshaft loops (zwede)
In my 79 i broke my yolk off on the rear of the drive shaft. It made some good size holes in the fiberglass floor in the back. so we had a 3 inch drive shaft made and i hope it dont brake. We make a metal loop and screwed it to the floor when there rear end is so if it happens again then it wont screw up the floor any more :leaving:
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