Let's talk high performance CVs/Axles, What are today's options Options

[vintage914racer]

I became the member of the failed CV joint club when the inner joint on my 914-6 vintage racer exploded entering turn-one at Road America. Just to spice things up, the tranny I was running has a welded diff, so the failure sent me into a spin....fortunately I avoided contact damage.

My winter project is to upgrade to a guard LSD and find beefier CVs that can handle the power my car is putting out.

I know there are options out there that consist of taking other Porsche CVs and adapting for use. I'm hoping to find an off the shelf option, as my available time to tinker in the garage is limited these days. I see Tarett sells high performance half shafts and I know Renegade does or did at one time.

Is there anything else out there that I should know about?

[brant]

lots out there.
you can upgrade to 944 joints fairly easily (thread in the classics)
that will increase the size to 100mm
and the later hubs (911) can bump you to 108mm


is your chassis braced on the rear swing arm mounts?
these cars without tube bracing on the pivot point... will flex the entire frame and swing arm out due to modern tires.

flexing or stretching that CV joint in a corner when you are putting power down... is how I have blown all of my joints.

and adding the brace bars into the swing arm mount solved my problem 15 years ago... zero blown CV's since that time.

of course really big torque.. a V8 may just be too much for the small joints.. but I don't know how much torque your putting out.

[vintage914racer]

lots out there.
you can upgrade to 944 joints fairly easily (thread in the classics)
that will increase the size to 100mm
and the later hubs (911) can bump you to 108mm


is your chassis braced on the rear swing arm mounts?
these cars without tube bracing on the pivot point... will flex the entire frame and swing arm out due to modern tires.

flexing or stretching that CV joint in a corner when you are putting power down... is how I have blown all of my joints.

and adding the brace bars into the swing arm mount solved my problem 15 years ago... zero blown CV's since that time.

of course really big torque.. a V8 may just be too much for the small joints.. but I don't know how much torque your putting out.

My car is indeed braced. I have a tangerine kit that was installed a few years ago. It was reinforced again last year when I had a suspected soon ear replaced.