Datsun-240z Vs Fairlady-z432

[Jason240z]

6 hours ago, kats said:

Hi Jason240z, I will ask my restorer , I do not know the color code for now. 

It will be cool with 918 Orange .

Kats

Thank you.  I've been struggling to find the perfect colour.

 

 

 

[v12horse]

Jason,

Those wheels are great. What are they?

 

Ben

[Jason240z]

Hi

Central 20's, one of the only proper period items I own.  I'm in love with them!

On the Amelia Island 423

On Top gear in the UK, fitted to 432's at TA auto's also.

 

 

Edited March 13, 2018 by Jason240z

[kats]

Hi Jason, this would be more suitable for your wheels, color of the magnesium wheel.

The one which has a part number sticker is an NOS, has never been exposed under the sun .

Courtesy our club member, Mr. Fukuda

Kats

Edited March 14, 2018 by kats

[Jason240z]

Beautiful wheels there.  Its a hard colour to replicate.

Sorry for the thread drift.  The middle colour of the 3 wheel pics is what i'm leaning towards, an anthracite colour. 

[kats]

I look it carefully, it is close to the color of the magnesium wheel. If it is flat , not glossy, will be much closer I think.

Drift is always welcomed !

Kats

Edited March 14, 2018 by kats

[Gav240z]

How hard is it to get a set of those Central 20 wheels? They seem even more rare than the Kobe Seiko wheels?

[Jason240z]

6 hours ago, Gav240z said:

How hard is it to get a set of those Central 20 wheels? They seem even more rare than the Kobe Seiko wheels?

I don't know.  It took me a year ish to convince the previous owner to sell me these

I think that they're rare, one other set in the UK that I know of, seem to be on a few 432's in Japan. I'm not sure of overall production numbers though.  Maybe Alan could pen his thoughts.

A set of Kobe Seiko would finish my shoe collection for the car.  however I need to get the car done to make use of any.

 

[kats]

I like the shape of Central 20 wheels , sometimes it pops up on Yahoo auction Japan, yes I think it is rare to see. Most of them is gold spokes with a silver outer rim.

Kats

[kats]

Today I show you a new old stock 5speed gear box “ FS5C71B” which is used for Z432 , Fairlady 240Z series and Skyline GTR . ( this one is specifically derived to Skyline GTR , as a part number 32010-R5530)

After Jan 1972, (for example  HS30-10635 And after )

FS5C71B was applied, but gear ratio was different from other model. Those three types of cars has very nice ratio.

1st  2.906  (3.321 std)

2nd 1.902 (2.077 std)

3rd 1.308  (same std)

4th 1.000  (same std)

5th 0.864  (same std)

Rev 3.382  (same std)

I have a question about export Zs which have 5 speed , are they have this special gear box ? 

I am thinking using this for my 240ZG , I will replace S20 front section to its original 

L24 one then I will sell the S20 front section (so many  S20 owners in Japan want to swap FS5C71A to FS5C71B, because it’s good feeling and plenty of parts availability) 

Also I need to have a spline type propeller shaft (my ZG has a flange type as an original  , soon after they went spline type ) this one will not be difficult to find because so many S30 models used this one since September 1971 (I mean longer one for the diff mount changed)

Or should I stick with its original gear box and propeller shaft ? Everything on this car is original down to exhaust tip with its build date stamp. Hmmm..

Alan , please let us know.

Kats

 

Edited April 23, 2018 by kats

[Gav240z]

32 minutes ago, kats said:

Today I show you a new old stock 5speed gear box “ FS5C71B” which is used for Z432 , Fairlady 240Z series and Skyline GTR . ( this one is specifically derived to Skyline GTR , as a part number 32010-R5530)

After Jan 1972, (for example  HS30-10635 And after )

FS5C71B was applied, but gear ratio was different from other model. Those three types of cars has very nice ratio.

1st  2.906  (3.321 std)

2nd 1.902 (2.077 std)

3rd 1.308  (same std)

4th 1.000  (same std)

5th 0.864  (same std)

Rev 3.382  (same std)

I have a question about export Zs which have 5 speed , are they have this special gear box ? 

Or should I stick with its original gear box and propeller shaft ? Everything on this car is original down to exhaust tip with its build date stamp. Hmmm..

Hi Kats,

I will have to check my factory parts manual for HS30's (UA - Australian Market) to see if they list ratios along with part no.s but in the interim I have some press releases here.

https://goo.gl/photos/yGt15kkjKMxXx6Sb8

72 + 73 model years had the following ratios with 71B box.

https://photos.app.goo.gl/zB8zJzHE5MTlPffw2

70-71 model years had the following with 71A box.

https://photos.app.goo.gl/f6rwh6bxr9LKFumw1

 

Zoom in to see them. Or I listed below.

73 model - 71B box

1st = 2.906:1
2nd = 1.902:1
3rd = 1.308:1
4th = 1.000:1
5th = 0.864:1

Diff ratio = 3.9:1

Early 240z 71A box

1st = 2.957:1
2nd = 1.858:1
3rd = 1.311:1
4th = 1.000:1
5th = 0.852:1

Diff ratio = 3.9:1

74 260z 2 seater (71B)
1st  = 2.905
2nd  = 1.902
3rd  = 1.308
4th  = 1.000
5th  = 0.864

Discussion here:

http://www.viczcar.com/forum/topic/5575-260z-gearbox-ratios-what-are-they/

I have a 71b/C hybrid box in mine, with the closer ratio 260z 2 seater box gears for the first 4 gears and the taller 5th gear with reverse lockout to prevent shifting into reverse. We used the 71B/C hybrid box because my car is HS30 10552 - which had a 71A 5 speed from factory so the shifter hole is further back and instead of bending the gear stick back to fit, we used this combination so that the shifter would come out in the stock position.

Given your cars originality, I'd be inclined to stick with the original box.

I wanted to go back to a 71A box in my 72 240z HS30 10552 but I already have 3 other 240z's that will receive this style box. So decided against it for now.

Previously I had the 280zx/240K gearbox with the wider gap between 2nd and 3rd gears, synchro's were well worn, so it drives night and day different now. I also fitted Triple 44's at the same time, so it's hard to say which I like better. The new gearbox or the response of Triples. Both have transformed my L28.

[kats]

Thanks Gavin !  Let me see .

Kats