NewZed

AZC says drive shafts aren't ready yet. But then their whole web site is from the 90's so who knows. Good luck. http://arizonazcar.com/strassy.html

The black one was mentioned in the link, as one of the three. Three show cars. Should be interesting to see how the pieces hold up to 200 mph. It's hard to tell how well built the cars really are. The odd "I'm a 240Z story" seems to have been copied to many sites, like somebody building a brand, but it's hard to read. I couldn't finish it. I think that it might have been famous in a small community for a short while. Good luck with making it a performance car. The Modern Motorsports package is probably the most effective bolt-in product. Already tested and proven. That's what you're paying for, hence the cost.

It's not done unless the charge is completely gone or you need "perfect".

Dang, screwed up my post.

How did it become "famous"? I had to Google it and the stories seem to be from somebody talking about their own car. I'm not sure you're allowed to claim your own fame. Your description of wanting bolt-on only is why I tried to clarify. That's not what most people here would call best. They weld on a whim. I guess that you bought the black one? Or are you Jack? https://www.engineswapdepot.com/?p=19345

We neglected to abuse the OP for using the word "best". Best depends on the goals that have been defined.

Don't mtnickel's adapters remove the requirement of shorter axles? Flipping the cages, adjustable control arm length and all of the other possible "fixes". The other big expense to that conversion. I seem to recall that some of the early adapters pushed the flange surface inward. Maybe even the one that Joe makes now. I'm just focusing on the OP's project, not the super duper drag racers. SUNNYZ and RebekahZ were doing hard core racing. Pretty sure that SUNNYZ was trying to break things.

You'd have 280Z axles. Lots of 280Z's out there with much more power than you're planning, using the stock hubs and axles. http://www.carpartsmanual.com/datsun/Z-1969-1978/axle/rear-axle-drive-shaft/6

How do those locate, or center, the CV? Just curious. It also looks like you're using the outer edges of the original flange to locate the ring. Do you use some sort of fixture to center the ring on the flange before welding? Just wondering how to be sure the CV is on center and perpendicular when it's all welded and bolted together.

You're probably fine with the u-joint half shafts. Many, many, of the "upgrades" aren't really upgrades. If you're not drag-racing. You didn't even say what kind of Z you're working with. 240, 260, or 280? They're not the same, although they're all S30's..

https://www.summitracing.com/search?SortBy=bestkeywordmatch&SortOrder=ascending&keyword=mr%20gasket%20electric%20fuel%20pump&cm_mmc=ppc-google-_-search-_-all-part-types-_-keyword

How do you know it's fuel starvation? What does "gun it hard" mean? Like SJ says, you really just need the volume to keep the float bowls full. You can measure the rate to see what you're getting. An EFI conversion isn't going to be easier than getting a carb to work.

You haven't mentioned the different axle lengths, VLSD compared to open or or CLSD. The 280Z and 280ZX R200 axles will slide in to the 29 spline VLSD diffs but they won't actuate the VLSD unit, because they're not long enough. I bought a salvage yard J30 R200 just to see about what was possible with it. Somebody on the site did the same and made their own extended axle by welding an extension on to their 280Z R200 axle. He said it worked fine, but it seems sketchy. Worst case though, if his modified axle breaks, he just has an open diff with a stub floating around in it, contained. One more variable.

When you're looking at parts like this you should break it down in to subcomponents. Machining the races and balls for the joint is the most important part. It would not be surprising to find that everybody gets their joints from the same off-shore manufacturer. Who just copied the Posrsche 930 design or some other easy tripod or other "CV" design. The rest is just axles and splines and flanges. And, in that link with the video about "looseness" it's not even clear what the guy thinks he's talking about. Watch that video, at about 40 seconds, and you'll realize that he didn't show anything. He wiggled a tire and that's about it.

Never mind. Got trolled by a troll there for a few minutes. Carry on Leon. There's a few more fish out there.