California Clutch

[docbainey]

Anybody here have experience with said topic company? Seems like they'll make you whatever you want, and made in USA.

[flatcat19]

Gone are the days that people would provide links.

[datzenmike]

Most often one design clutch fits hundreds of applications. So you aren't really getting anything really custom.

 

 

Looks like 510s and 610s in your stable so stock clutch is 200mm. The best replacement for that is the 200mm pressure plate from a Roadster.

 

30210-20111 is the Nissan part number, but I don't know if they still have them. It has 650 kg or over 1,400 pounds of clamping force. So if you find someone who makes them ask first what the clamping force is. If not this then it's just a generic pressure plate. Next would be any 200mm pressure plate for an L20B powered Datsun like an S10 200sx or an A10 HL510. L20B powered 610s and 710s will also do. They are rated at 400 kg or 880 pounds clamping force. 

 

Any 200mm clutch disc will work.

[Rjawm]

Gone are the days that people would provide links.

 

https://californiaclutch.com/

[datzenmike]

Well 10% more clamping than what, is the question.

 

 

Unless you have a very modified engine the stock PP is fine.

[Stoffregen Motorsports]

I have never used this company, but it looks like they actually do custom work, Mike.

 

I've used other companies in the past to have custom discs made, and the link shows a tab to have that service done. A custom disc can include or delete the springs in the center, you can chose from different friction materials or mix and match friction materials for a durable clutch with soft takeup.

 

If it's going in a race car, track day car or just a hard core street car, I might consider deleting the springs.

[G-Duax]

Increasing clamping force, also means increased pressure on the crank's thrust bearing, and thus quicker wear.

A lot of Supra owners have found this out the hard way.

[DanielC]

I have used a few 2000 roadster pressure plates on L-16 or L-18 engines.  Main bearing wear has never been an issue with me.

[datzenmike]

L series are better built? I'd be more concerned over the slave or master having to work under a heavier load. 

[Stoffregen Motorsports]

All splitting-hairs arguments. None of these problems exist with a HD pressure plate on a healthy L series.

[DanielC]

I do not think I have experienced any out of the ordinary problems with slave, or master cylinders either.

[datzenmike]

I should have said old 'tired' master/slaves that suddenly need an extra 50 pounds of foot pressure and god only knows how much increase in hydraulic pressure. I think Hainz mentioned changing his clutch and blowing out the slave.

[banzai510(hainz)]

the slave cylinders are exposed to the weather as that rubber boot seal wears out. I highly recommend a new slave(japan made one if possible) when upgradeding to a Roadster P/P 200mm or a a Daiken Stage 1 225mm P/Ps.

for a daily driver I stick with stock setups now on my 521.

[hang_510]

For the price, the Nissan roadster setup is pretty bulletproof.

[G-Duax]

I was speaking of real large increases in clamping forces.

Can't you all hear what I'm thinking.....

LoL

 

Sorry, should have typed more.

 

Long, long time ago, in a place far, far away,

I put a Porsche pressure plate in my old 1200cc bug.

Damn pedal pressure was so high that the arms that held the throw-out bearing broke off.

So I doubled them up.

Then the damn clutch cable would snap.

 

But it sure locked up nice :)

So much so, that I sheared the ring gear bolts off...

 

At which point the Porsche pressure plate was taken out, and I just put up with the slip until I sold that damn piece of German crap.

[Stoffregen Motorsports]

For the price, the Nissan roadster setup is pretty bulletproof.

Absolutely right.

 

I was speaking of real large increases in clamping forces.

Can't you all hear what I'm thinking.....

LoL

 

Sorry, should have typed more.

 

Long, long time ago, in a place far, far away,

I put a Porsche pressure plate in my old 1200cc bug.

Damn pedal pressure was so high that the arms that held the throw-out bearing broke off.

So I doubled them up.

Then the damn clutch cable would snap.

 

But it sure locked up nice :)

So much so, that I sheared the ring gear bolts off...

 

At which point the Porsche pressure plate was taken out, and I just put up with the slip until I sold that damn piece of German crap.

That's freakin funny.

[docbainey]

But of course 30210-20111 is NLA like most 45 yr old Japanese factory parts. IMPEX of Japan will be happy to sell me one for $600+ and the roadster places in the US want $250+. $250 is about half way to a Tilton clutch, hence the original question.

[hang_510]

Clamping force: roadster = too much for LA traffic, perfect in the LA canyons.

 

Did you try Nissan? or Nissanparts.cc? I think I got the clutch and bearing for that price.

[Stoffregen Motorsports]

I don't think a roadster clutch is too heavy for regular use. I have used them in many of my own Datsuns and never felt it was too much.

 

But if it's not available...moot point. I find it hard to believe that the aftermarket doesn't sell a clutch package for the roadster.

[datzenmike]

We had a bad clutch in our lift truck at work years ago. Estimate was $2,200 to take it away and fix it. I found a early 60s Rambler pressure plate (Borg & Beck?) for under $50 at Canadian Tire, cleaned the disc which was fine just the clamping was bad and swapped it in the winter during the slow work. I was paid to be there anyway so labor was nil. Did the same later with $207 wheel cylinders with 3/4" seal kits for 60s Chev @ 0.75 each.

 

My '64 slant six took a 9" taxi option clutch. That's 228mm pretty close to the 225mm one. Maybe there's a clutch out there for a '60s Corvair that would work and just use the stock disc. Chevys used diaphragm clutches.

[G-Duax]

If you use a corvair clutch, a Datsun will lose control, and crash...

 

You don't want to use any pinto parts either.

[banzai510(hainz)]

datsunroadsterparts.com has the daiken 600KG version for 169$  best deal around if a daily driver with a little more clamping is needed(dual carb equipped)

that's a good deal and people need to buys these up and save them.

[docbainey]

This is more like I had in mind.

[G-Duax]

I run an OS Giken twin plate.

Probably way more clutch than an L4 would ever need, since I run nearly the same clutch on my Toyota 6-cylinder,

but what the hell, it will never wear out....

[docbainey]

G-Daux,

 

Are you running sintered discs or cermatellic? Solid hub or sprung? That AP is for a single disk. They'll do single disks to 300ft-lbs. But the pedal effort will be high Vs a twin disk at the same torque rating. A lot of things out of England right now are very cost competitive. Two places I've found are Demon Tweaks and Burton Power they're like the Summit Racing for road racing, but in England. Closest place in the states for cool inventory is Pegasus Racing, pricy but they typically have it in stock. I'd have links, but win10/IE 11 or whatever it is, is not user friendly on this site.