258mm Brake Upgrade

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Revision as of 00:36, 6 March 2011 ddgonzal (Talk | contribs) (->Rotor) <- Previous diff		Revision as of 01:02, 6 March 2011 ddgonzal (Talk | contribs) Next diff ->
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-	Upgrade your 1200's brake to large 268 mm (10.565 inch) brakes -- and keep the lightweight 1200 struts! Thanks to [http://community.ratsun.net/topic/24226-1200-brake-upgrade-mklotz70/ mklotz and morrisun at Ratsun] for this great idea. The rotors are 280ZX rear disks. The calipers are from 1980s Pulsar and Sentra/Sunny.	+	Upgrade your 1200's brake to large 258 mm (10.15") brakes -- and keep the lightweight 1200 struts! Thanks to [http://community.ratsun.net/topic/24226-1200-brake-upgrade-mklotz70/ mklotz and morrisun at Ratsun] for this great idea. The rotors are 280ZX rear disks. The calipers are from 1980s Pulsar and Sentra/Sunny.
	Also see: [[280ZX Strut Swap]] for heavier, smaller vented brakes		Also see: [[280ZX Strut Swap]] for heavier, smaller vented brakes
Line 29:		Line 29:
	[http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/101_3664.jpg http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/th_101_3664.jpg]		[http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/101_3664.jpg http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/th_101_3664.jpg]
-	Weight: The 280ZX solids are 10.5 pounds vs. 11 pounds for the vented disks. However, you keep the original 1200 struts and hubs. Hopefully it is lighter...	+	Weight: The 280ZX solids are 10.5 pounds vs. 11 pounds for the vented disks. However, you keep the original 1200 struts and hubs. So it is little lighter...
	Alignment: The disks push the wheel mounting face out 1/2" each side, increaseing the [[Wheels|Scrub Radius]] which is not good. But this is less that the [[280ZX Strut Swap]] (hopefully).		Alignment: The disks push the wheel mounting face out 1/2" each side, increaseing the [[Wheels|Scrub Radius]] which is not good. But this is less that the [[280ZX Strut Swap]] (hopefully).
	= Details =		= Details =
-	280ZX front vented disk, bolts to the 280ZX hub via small bolts, so won't bolt to your 1200 wheel hub:	+	280ZX front vented disk 252 mm, bolts to the 280ZX hub via small bolts, so won't bolt to your 1200 wheel hub:
	<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22880 http://datsun1200.com/modules/myalbum/photos/thumbs/22880.jpg]		<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22880 http://datsun1200.com/modules/myalbum/photos/thumbs/22880.jpg]
-	280ZX rear solid (non-vented) disk, simply fits over the lug nuts (captured/floating type), and it will fit over the 1200 wheel hub lugs:	+	280ZX rear solid (non-vented) disk 258 mm, simply fits over the lug nuts (captured/floating type), and it will fit over the 1200 wheel hub lugs:
	<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22881 http://datsun1200.com/modules/myalbum/photos/thumbs/22881.jpg]		<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=22881 http://datsun1200.com/modules/myalbum/photos/thumbs/22881.jpg]
		+
		+
		+	Track width increase about 1/4" per side, 1/2" total.
		+
		+
		+	Calipers are similar bore to the 1200 calipers, so the master cylinder reportedly does not need to be changed, nor the balance compensated for -- no need for a proportioning valve.
		+
Line 53:		Line 60:
	=== Adapter ===		=== Adapter ===
		+	1/4" thick plate steel adapter.
		+
	mklotz of Datsun NL320 disk retrofit fame is making some sets of the adapters. In fancy colors.		mklotz of Datsun NL320 disk retrofit fame is making some sets of the adapters. In fancy colors.
		+	[http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/1200brkt2.jpg http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/th_1200brkt2.jpg]
		+
		+	[http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/1200_3D.jpg http://i88.photobucket.com/albums/k162/mklotz70/1200%20Brake%20upgrade/Solid%20rotor/th_1200_3D.jpg]
	== Rotor ==		== Rotor ==
		+	The 258mm rotors (43207) are from the rear of:
		+	* 1982-1983 S130 (280ZX) 0981- USA
		+	* 1984-1986 S12 (200SX) 0184-0686 USA CA18ET, 1184-0686 USA CA20E
		+	* 1982 S110 (200SX) 0781- USA Z22E
		+	* 1982-1984 910 six (Maxima) 0981- LD28.MT.F5 +S.LD28.AT +S.L24E
		+	These are Japan-built models all, so Australia PBR-equipped are not the same.
		+
		+
	280ZX USA catalog (Turbo or Non-turbo. 2+2 or Coupe)		280ZX USA catalog (Turbo or Non-turbo. 2+2 or Coupe)
	* 268 mm <-- Not this one		* 268 mm <-- Not this one
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	* 43206-N9501 ROTOR-DISC BRAKE,REAR 0981- (1982-1983 [[Model year]])		* 43206-N9501 ROTOR-DISC BRAKE,REAR 0981- (1982-1983 [[Model year]])
	** superceded 43206-N9502		** superceded 43206-N9502
-
	* 290 mm <-- Not this one from Europe 1983 Turbo		* 290 mm <-- Not this one from Europe 1983 Turbo
-
-
-	The 258mm rotors (43207) are from the rear of:
-	* 1982-1983 S130 (280ZX) 0981- USA
-	* 1984-1986 S12 (200SX) 0184-0686 USA CA18ET, 1184-0686 USA CA20E
-	* 1982 S110 (200SX) 0781- USA Z22E
-	* 1982-1984 910 six (Maxima) 0981- LD28.MT.F5 +S.LD28.AT +S.L24E
-	These are Japan-built models all, so Australia PBR-equipped are not the same.
	This may also work		This may also work
-	* [258 mm] 300ZX rear	+	* [258 mm] 300ZX rear [unknown how it differs]
-		+
Line 113:		Line 123:
	* Bolt circle: 4 on 4.5" (114.3 mm)		* Bolt circle: 4 on 4.5" (114.3 mm)
	* Weight: 11 pounds		* Weight: 11 pounds
		+
		+	= Lug Studs =
		+	Since the rotors fit over the 1200 hubs, they add about 1/4" to the mounting face of the wheels. So you will need slightly longer [[Wheel Studs]], which are common from a wreckers or buy them new.
		+
		+
		+	Stock 1200
		+	* Thread: M12 x 1.25
		+	* Head Code: 240
		+	* Knurl Diameter: 13.00mm (12.9 mm)
		+	* Thread Pitch: Right
		+	* Shoulder Length: 10mm
		+	* Thread Size: M12-1.25
		+	* Length: 32mm
		+	* Type: Serrated Stud
		+
		+
		+	1200 rear studs are the perfect length for the front, but use a smaller diameter knurl (12.56mm).
		+
		+
		+	280ZX Rear Studs
		+
		+
		+	510 studs
		+	* NAPA Balkamp 6412785 $2.29 USD each
		+	* Head Marks: 403
		+	* Length: 45.5mm
		+	* Shoulder Length: 15mm
		+
		+	See main article [[Wheel Studs]] for more choices.

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Revision as of 01:02, 6 March 2011

Upgrade your 1200's brake to large 258 mm (10.15") brakes -- and keep the lightweight 1200 struts! Thanks to mklotz and morrisun at Ratsun for this great idea. The rotors are 280ZX rear disks. The calipers are from 1980s Pulsar and Sentra/Sunny.

Also see: 280ZX Strut Swap for heavier, smaller vented brakes

Contents 1 Overview 2 Details 3 Parts & Specifications 3.1 Caliper 3.1.1 Adapter 3.2 Rotor 4 Lug Studs

Overview

Bolt On Extra-large Brakes for Datsun 1200s -- no fabrication, no welding

• Lightweight disk rotors
• keep your lightweight 1200 disk struts
• fits under 13" aluminum wheels & 14" steel wheels
• No modifications needed to master cylinder

Will fit under 16 & 17" wheels too
for you new-school fans

Doug Morrisun from Oregon came up with this idea: the lightest, largest brakes that would fit on the stock struts. To keep weight down, his idea was to use a solid rotor. Non-vented. He says that for a light 1200 street vehicle there is no fading.

Remove the 1200 disks from the hub, then put the 1200 hub back on the car.

you will need slightly longer wheels studs, from a wreckers or buy them new

Slip the new disks over the hub

Here's the trick: it needs a caliper spacer/adapter:

Weight: The 280ZX solids are 10.5 pounds vs. 11 pounds for the vented disks. However, you keep the original 1200 struts and hubs. So it is little lighter...

Alignment: The disks push the wheel mounting face out 1/2" each side, increaseing the Scrub Radius which is not good. But this is less that the 280ZX Strut Swap (hopefully).

Details

280ZX front vented disk 252 mm, bolts to the 280ZX hub via small bolts, so won't bolt to your 1200 wheel hub:

280ZX rear solid (non-vented) disk 258 mm, simply fits over the lug nuts (captured/floating type), and it will fit over the 1200 wheel hub lugs:

Track width increase about 1/4" per side, 1/2" total.

Calipers are similar bore to the 1200 calipers, so the master cylinder reportedly does not need to be changed, nor the balance compensated for -- no need for a proportioning valve.

Parts & Specifications

Caliper

The calipers are from:

• Nissan B11/B12 (Sentra/Sunny)
• Nissan Pulsar N12/N13

Wreckers are full of these, but re-manufactured are only $21 each at

These are Japan-built models all (Tokico, etc), so Australia PBR-equipped are not the same.

Adapter

1/4" thick plate steel adapter.

mklotz of Datsun NL320 disk retrofit fame is making some sets of the adapters. In fancy colors.

Rotor

The 258mm rotors (43207) are from the rear of:

• 1982-1983 S130 (280ZX) 0981- USA
• 1984-1986 S12 (200SX) 0184-0686 USA CA18ET, 1184-0686 USA CA20E
• 1982 S110 (200SX) 0781- USA Z22E
• 1982-1984 910 six (Maxima) 0981- LD28.MT.F5 +S.LD28.AT +S.L24E

These are Japan-built models all, so Australia PBR-equipped are not the same.

280ZX USA catalog (Turbo or Non-turbo. 2+2 or Coupe)

• 268 mm <-- Not this one
• 43206-P6500 ROTOR-DISC BRAKE,REAR 0778-0881 (1979-1981 Model year)
  • superceded 43206-R4800 0778-0881

• 258 mm <-- This one
• 43206-N9501 ROTOR-DISC BRAKE,REAR 0981- (1982-1983 Model year)
  • superceded 43206-N9502

• 290 mm <-- Not this one from Europe 1983 Turbo

This may also work

• [258 mm] 300ZX rear [unknown how it differs]

Rotors are only $16 each new at http://www.rockauto.com/catalog/x,carcode,1209394,parttype,1896

• FERODO Part # DDF659
• BREMBO Part # 08485210 More Info {#25111, 43206N9502}
• RAYBESTOS Part # 9809
• CENTRIC Part # 12042016/12142016
• RAYBESTOS Part # 9809R

258 mm

• Europe: 02/1980 To 09/1982 280ZX
• USA: 1982-1983 280ZX
• Diameter: 258 mm (10.15 inch)
• Height: 47 mm (1.86 inch)
• Thickness (nominal): 10 mm (0.39 inch)
• Thickness (minimum): 9 mm (0.35 inch)
• Hub Reg (center hole): 68 mm (2.68 inch)
• Bolt size: M12x1.25 (10.75 mm diameter)
• Bolt circle: 4 on 4.5" (114.3 mm)
• Weight:

268 mm (for comparison)

• 268 mm (10.565 inch)
• Height: 68.5 mm
• Thickness (nominal): 9.6 mm
• Thickness (minimum): 8.6 mm
• Hub Reg: 68 mm
• Bolt size: M12x1.25 (10.75 mm diameter)
• Bolt circle: 4 on 4.5" (114.3 mm)
• Weight: 11 pounds

Lug Studs

Since the rotors fit over the 1200 hubs, they add about 1/4" to the mounting face of the wheels. So you will need slightly longer Wheel Studs, which are common from a wreckers or buy them new.

Stock 1200

• Thread: M12 x 1.25
• Head Code: 240
• Knurl Diameter: 13.00mm (12.9 mm)
• Thread Pitch: Right
• Shoulder Length: 10mm
• Thread Size: M12-1.25
• Length: 32mm
• Type: Serrated Stud

1200 rear studs are the perfect length for the front, but use a smaller diameter knurl (12.56mm).

280ZX Rear Studs

510 studs

• NAPA Balkamp 6412785 $2.29 USD each
• Head Marks: 403
• Length: 45.5mm
• Shoulder Length: 15mm

See main article Wheel Studs for more choices.

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