Well, here we go. A long (long, long) time in the making...
Ran into a guy on Facebook who said he was thinking of abandoning a project. It looked liked the perfect combination of my dream and nightmare project.
After many months of navigating a crazy cross border situation and more recently, floods in British Columbia - the car finally arrive last night. While the car is as described, I'm a bit overwhelmed. I've done a lot of crazy car stuff over the year, but this is the most adventurous.
Wish me luck - I'm hopeful for some strong support for the Realm community and thankful that between setbacks, I have another 510 that I can take out for rip.
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First two things I need help with... The seller told me this is an R180 rear differential. Is that Nissan, Subaru? All the rear end stuff with these confuses the crap out of me. What axels should I be considering? I've got an SR20DET for this one and plan to build it out pretty well. I understand I should expect low 300 HP.
Anyone have a source for headrests for these seats? I believe they are Datsun seats, but not sure (don't think they are 510 original??). They are perfectly reupholstered and I'd love to use them - Help!
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Wow, looks similar to the project that just sold on BaT. You have your work ahead of you.
On the diff, it looks to me like a Nissan because of the 38311-U3000 part number on the case. It is the "K" case, so a later style and not an early Z unit. Guessing maybe the "370" is indicating a 3.70:1 ratio? Maybe from a 200SX (S12), although I know those came in a 4:11 in some applications. I have one from a 720 truck that is the K case, but those are typically higher ratios (4:11 or 4:38). You will have to try some stubs in them to see what fits. Some pictures here: http://the510realm.com/viewtopic.php?f=30&t=31734
Those seats do look nice, and the proper type of fabric with the bumpy/weave vinyl.
I am about a year and a half in on putting together my totally disassembled project, but it was at least painted. I hope to finish in spring.
Yes, saw that on BaT this morning... that was a really good deal I think. The seller was throwing in extra bits during the auction as well - he found an L20 head, then an L20 block. He must have more cars and parts than me :^P.
I do have the stubs and stock axles, but thinking with 300HP+, might be better going with CV axles. I need to check if it is LSD or not and should be able to calculate the ratio as well.
I also need a front windshield if anyone has a spare :^).
Oh boy these projects come way to easy to every one out west. That is a REALLY nice starting point you found yourself (don't find those in the north east) That diff is a r-180 and looks to have stubs with a center bolt that screws into the spider gears. its likely not a LSD (if you can hold one of the side stubs and turn the other will answer that question) you will want look inside regardless for gear condition and see ratio stamped on ring gear. CV joint conversion would deliver best package with a newer LSD spool installed (not a low cost conversion and you do get what you pay for in this area) AS for the seats they are nicely redone but don't think that they are Datsun 510. ( lumbar adjustment and lock on head rest looks euro, rails also do not look correct) more pics and eyes might get to the bottom of that. ID the seats and head rest might be more available. I just discovered that Mini Cooper (newer) seats are a direct bolt in using the stock 510 supports. Find some high ground and get your parts pulled together you have a project but a rewarding one
Looks like one hell of a project. If you have the stock axles I would just toss those in for now. They will handle the power and you can worry about upgrading later.
"People don't like it when shit doesn't match their rule of thumb." Sam
Downeaster wrote: ↑24 Nov 2021 14:11
That diff is a r-180 and looks to have stubs with a center bolt that screws into the spider gears. its likely not a LSD (if you can hold one of the side stubs and turn the other will answer that question) you will want look inside regardless for gear condition and see ratio stamped on ring gear....
AS for the seats they are nicely redone but don't think that they are Datsun 510. ( lumbar adjustment and lock on head rest looks euro, rails also do not look correct) more pics and eyes might get to the bottom of that. ID the seats and head rest might be more available.
Thanks - It does appear to be LSD. I can't turn one side independently of the other. I will crack it open this weekend to check it out.
No obvious markings on or under the seats, but I removed a side plastic protective panel and Googled the part number. The seats are from a mid-eighties Toyota something or other. At least I have a starting point for finding the headrests. The seats are really nicely done and very comfortable. I hope I can get them to fit. The rear seat is original and upholstered the same.
38311-U3000 is an R-180 differential case part number. That's it, just the case, and was used on the S30, S130 and the 810 through '80. Maxima, S12 and 720
The differential ratio is NEVER cast into the housing. This would be a mold or revision number. The K is a later differential and I have pulled them from 720 4x4s and though they are an R-180, they use a different part number. As this one has the K cast into it I would guess the last car to use it the '80 810. There was no R-180 LSD option.
Differential gear info is stamped onto the outer edge of the ring gear
37/9 = 4.11
The 810 had a 3.70 gear but the 280zx and S30 never came above 3.545.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs
Thanks Mike! I will pull the cover this weekend and have look. If I can't get one side to turn independently, does that mean it has LSD guts of some form, or? I guess I'll learn more when I crack it open.
Damn eh, welded diffs just screw up any handling...major understeer. I watched too many 510's come to Solo in the early days with welded diffs, made corners a bear and you had to make sure you did not over-reach on the power, otherwise PLOW city.
"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan
Keith Law
1973 2 Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1971 Vintage 13' BOLER trailer
Cusco makes new LSDs for the R180. You just need to confirm the inside diameter of your ring gear to make sure uou get the right one. I got one a few years ago and I love it. There are the early and late model ones.
If no one from the future comes back to stop you from doing it then how bad of a decision can it really be?
funwithmonkeys wrote: ↑27 Nov 2021 18:09
Cusco makes new LSDs for the R180. You just need to confirm the inside diameter of your ring gear to make sure uou get the right one. I got one a few years ago and I love it. There are the early and late model ones.
The Cusco one looks interesting. Where did you source yours from?
