I don't have access to a CV half shaft so I can't decern this myself. I've done some searching just to look at a CV half shaft but figure someone out here can look at a shaft assembly in hand. Maybe someone else has thought of this? What I'm asking is can a CV half shaft be disassembled then reassembled using extra parts such that you end up with a bolt-on assembly at both ends? I was thinking that someone like Moser Engineering could fab the splined shaft to build a custom, if necessary. If this were possible then R180 diff flanges (bolt-on) could be made similar to the MM modified stub axle flanges. This would allow CV's to be run on early R180, longer and equal length shafts, etc.

Well, it's been months but I've finally answered my own question. BlueOvalZ over at hybridz had made a set similar to my design. They are going into my 240Z. I swapped the bolt-in R180A differential side flanges found in the early 80's 4x4 truck into my Nismo LSD R180. These flanges use the 6 bolt tulip-style CV joint. Along with those flanges I designed adapters allowing the use of Porsche 930 CV joints. They are 108mm x 40mm and rated at roughly 600hp. A set of EMPI axles were shortened and re-grooved and my adapters were also machined by a local shop that produces a number of special pieces for me and a good friend. The hardest parts to acquire were the boot flanges but I found them on a set of '78 Porsche axles. Said and done, I have a bit over $800 invested. More than anything it was a challenge to make these. Heck, it's only money...right?

More pictures coming...

More pictures....

Thats incredible. They look very good.

Well that answered a question I have pondered for quite some time. They look beautiful. Rick.

just gonna through this out there and ask anyway but why go to the extra trouble of making it up this way and not go the modern motorsport way

I mean if your looking at cv its not keeping the car orginal thats the issue

for me it was simple buy 300zx turbo cv shafts $225

adaptors for stub axles $250

$475 aussie dollars

now your gonna tell me i need a r200 to do this well the reason i wanted cv was to handle more hp so need r200 for that

r200 lsd $850 but ill recoup that when i sell my r180 lsd

also upgraded to 280z stubs at same time

so why go the other way this way its all easily replaceable with off shelf parts

mick

The porsche CV joints are the same as the CV's on the larger BMW sedans (identical) The BMW shafts may almost be close to being the right length if you are lucky. A problem some people face with them is that over time in insane HP applications the bolts loosen off, this is fixed by using two dowels and four bolts to hold each CV joint on.

Chris

My reasoning was it creates a stronger assemble than the tulip style CV. The 930 CV also provides 23 degrees of articulation. I can swap these over to a R200 diff easily if/when I blow my diff. The cost of axles is about $215 for the swap. The trouble and cost for a R200 conversion negates any cost savings for me using the MM adapters at this time. New replacement 930 CV's are $55 each and readily available. The only new(?) 300ZXT axles I've located as a replacement are $100 each from Blackdragon. These are rebuilt and require a good core. I can't find a listing for an axle at Courtesy and figure that part is NLA from Nissan.

I am planning on building a blown stroker (parts on hand) down the road or possibly dropping my LS1 in one day. Above all, it is the challenge to try something different.

I'm adding some more pictures of the axles being installed. Ignore the surface rust on the adapters. That will be treated and painted a bit later. In order to use the forward mount anti sway bar I had to shorten the links and modify the chassis brackets to move the bar forward about .5". It is as close as it will get in these pictures with the car on jack stands and the suspension in full droop.

thanks for telling me your reasons makes sense i find i read and learn all the time on these sites usually after I ve researched something and bought the parts someone mentions a better way

Just cant keep changing so ill run with the 300zx cv set up see how long they last with new engine keep your solution idea there as back up

Your set up sure does look good

Mick