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| But for coolness sake... read the article [[Rear Disc Brakes]]. | But for coolness sake... read the article [[Rear Disc Brakes]]. | ||
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| + | = Datsun 1000 = | ||
| + | gary hamilton managed to squeeze RX7 4spots on his 1000 sport sedan which uses 13" wheels, but don't ask me how! http://datsun1200.com/modules/myalbum/photo.php?lid=1372 | ||
| [[Category:Brake Modifications]] | [[Category:Brake Modifications]] | ||
Revision as of 11:31, 16 December 2012
For general brake improvements, see Brake Upgrades.
Contents |
Better Brakes
Here are some considerations of a braking upgrade:
- Bigger caliper and brake pads will slow down car more quickly
- Larger-diameter disc brake rotor will improve braking power and sensitivity
- Vented rotors will improve repeated stops (less brake fade because the rotors can shed heat faster)
- Coilover swaps permit wider tires
Notes:
- Slotted/drilled rotors are unnecessary and can often weaken the rotors, but may be useful in some racing applications (check with your brake vendor for their suggestions)
- Large tires will improve brake contact patch thus are a huge part of increased braking performance
- A dual master cylinder is safer than a single one. See Brake Upgrades.
- Front and rear caliper/cylinder ratios should match the application of the car weight bias, brake and tire sizes (See Brake Bias). Otherwise, a brake proportioning valve will be needed to prevent premature lockup
- Bigger tires. Yes, this has a big effect on brakes, because more rubber on the road lets you stop faster before the car skids. 1200 accept 185-width on front, 205-width on back (if you have wheels with appropriate backspacing)
Slotted Rotors
RDA can supply standard 1200 rotors with slots if you ask for them. Mine cost me $290 for the pair.
1200 Disc Swap
If your 1200 has front drum brakes, take note that disc brakes are:
- easier to work on
- More resistant to fading -- safer after repeated stops (they dissipate heat far better)
Swapping 1200 drums for discs is easy.
See main article: 1200 Disc Brake Swap
Better Brakes for HB210
See Aerospace Brake Kit for A14-powered B210 struts on Ratsun.net
http://community.ratsun.net/topic/40004-datsun-front-aerospace-brake-kit-installation
These fit the 2" North America B210 strut/hub assembly.
280ZX Brake Upgrade
Upgrade your 1200's brake to large 258 mm (10.15") brakes -- and keep the lightweight 1200 struts! No machining required.
See main article: 280ZX Brake Upgrade
S13 Brakes
S13 250mm rotor & caliper on 1200 disc brake struts requires some machining. But it gains ventilated rotors suitable for racing applications.
S13 Brakes on 120Y Disc-brake Struts
NOTE: 120Y is A12-powered B210. It uses different struts than A14-powered B210.
The Silvia S13, S14 centre bore is 68mm and the 1200 hub is 70mm at the disk seat. But the Silvia disk has a huge backspacing compared to the 1200 disk. Perhaps 2mm need to be machined off? custom adaptor plates for the caliper are also needed.
You need an adaptor plate for the the calipers.
You may need to swap the struts right-to-left and left-to-right to clear the steering arms. Also, mount the calipers INBOARD for better weight distribution.
'78 120y struts discs and calipers cos they're an aussie assembled PBR product. i aslo swapped the struts left to right to clear the steering arms once i put silvia rotors and calipers in place. low1000
Optional: use Hilux 4-pot calipers, which only involve the elongation of one bolt hole with a round file and then bolt straight up over 180SX discs. These are similar to MK63 calipers but are cast iron instead of alloy.
Wise words from Bundy351: I am running 120y struts in my 1200 ute. On these struts I have a Kev Rowley Brake adaptor plate (about $100 for the pair) Rotors, calipers, calliper bolts (2 per caliper) and wheel studs from a 1989 nissan silvia. You also need the flexi brake hose (mine came off a 1995 corolla cause thats all I could find). Very simple conversion.
- MACHINE THE OUTER DIAMETER OF THE HUBS DOWN SO THE ROTOR WILL SLIDE OVER IT (150mm FROM MEMORY BUT I HAVE HAD ALLOT OF RUM SINCE I DID CONVERSION) PREFERABLY USE A LATHE BUT YOU CAN USE A GRINDER.
- KNOCK OUT 120Y STUDS AND BANG IN SILVIA ONES
- CUT A 10mm SLOT IN THE HOSE MOUNT ON THE STRUT TUBE (LITTLE METAL TAB THE BRAKE HOSE SITS IN)
- BOLT BRACKETS TO STRUTS
- SLIDE ROTORS ON
- BOLT CALIPERS ON WITH PADS
- CONNECT HOSES
- BLEED
- RE-FIT WHEELS
- TEST DRIVE
WHERE TO CUT THE 10mm SLOT
WHAT THE BRACKET LOOKS LIKE
FINISHED PRODUCT
Better Brakes for Z/ZX Struts
Z means 240Z, 260Z or 280Z (Nissan chassis code S30). ZX means 280ZX (S130) which came 1979-1982.
See 280ZX Strut Swap for details. This section will focus on even better brake choices, after you've got the Z or ZX struts.
Rotor Comparo
- 240/260/280Z: 272 mm (10.7") non-ventilated
- 280ZX rotors: 254 mm (10.0") ventilated, 18 mm thick, fit Z-car struts
- 280ZX rotors: 258 mm (10.15") lightweight non-ventilated, fit 1200 disc struts
- 300ZX rotors: 274 mm (10.8") ventilated, 22 mm thick, don't fit 280ZX struts
All the Z and 280ZX struts will allow interchange of any rotor onto any hub as far as being able to be physically bolted together. In other words, any Z or ZX 4-bolt hub will accept any other Z or ZX brake rotor. However the rotor thickness and offset are more important. Also any Z or ZX 4 bolt hub will also fit onto the Z spindle too, with the only difference being a very slight displacement of inside seal (the wheel bearings are the same).
Note that the Z has more positive camber than the ZX struts, so the ZX is superior for swapping.
300ZX calipers are wider, heavier, and had a different bolt spacing than did the 280ZX or Z calipers, even though the piston and pad area on these calipers was no bigger than the piston and pad area on the 280ZX caliper.
Apparently the stock non-ventilated rotor is close to overheating on a 2800 pound Z-car, but is fine on a lightweight 1200 for street driving.
It seems the 280ZX strut lets you use a 1" smaller wheel than Z struts. 280ZX allows 13" alloys.
Adventurous swapsters: notice that 1981 Toyota Cressida caliper bolts to the Z-car strut and has slightly smaller piston and pads. What size rotor does the Cressida have?
Ventilated 300ZX Rotor on Z Strut
If you want the large 300ZX rotor, use them with a 280ZX caliper, as 300ZX calipers don't bolt on, having the bolt spacing farther apart.
- The caliper has the bolt threads. So drill out the Z-car strut to fit them and put bolts through the strut holes into the caliper
- Use a spacer on the caliper bolts to center the caliper over the rotor. Use early 240Z hubs. A thick .160" washer, is placed between the caliper and the strut. If using newer hubs, which are thicker, it won't be a bolt on, but probably you'd have to machine the hub.
- Machine the larger 300ZX rotor down to reduce diamter by about 1/4 inch (it should just come past the brake pads)
reference: Z Home
Wilwood Dynalite Calipers on 280zx Struts
Perhaps the most effective braking system you can get on a 1200 / 120Y / B-210 etc... ( at least as good as the FIA brakes at a much lower cost. ) It's an upgrade that will last the life of the vehicle.
This upgrade requires all the work done to swap in the 280zx struts in addition to a custom caliper adapter.
Some people have mentioned that some Wilwood calipers do not have dust seals and as such may not be road worthy in some places ( Australia for one! ) I've been looking for an answer to that question. Dynalite calipers don't have dust seals and allegedly don't need them, Dynapro calipers MAY have dust seals, but I can't verify that.
Benefits:
- 1. Significantly lighter than 280zx calipers. ( any unsprung weight savings are good on those heavy strut assemblies )
- 2. 4 pistons
- 3. Wide range of pads from street to severe duty race pads without spending any more than regular pads.
- 4. Many people consider the Wilwood caliper to be more reliable than the OEM calipers, not needing rebuilds for years.
- 5. No machining of brake disks to fit them. Once you have them installed all service parts are regular off the shelve parts.
Disadvantages:
- 1. Lack of dust seals may be a problem if you need to get upgrades engineered.
- 2. If used on a track car, you'll be put in a class with much more powerful cars.
- 3. 14" or larger wheels needed.
- Some wheels may require spacers, 14" 280zx and 280zx Turbo wheels have a different offset, so non-turbo wheels may not need spacers.
- 280zx Turbo wheels may also need a little bit of grinding to clear the caliper, and even then the space between the caliper and wheel spokes may be extremely small, also the nut that holds the caliper to the adapter will have a very small amount of clearance to the brake disk.
- 4. Installation will require removing splash guards from disks, which may cause problems if the upgrade needs to be engineered.
Installation Notes:
Installation of these calipers is fairly easy. You need to source an adapter to attach the brakes to 280zx struts, look around on 280ZX sites or check ebay. If you're going to this length, you'll want to get some stainless steel flex brake lines, and the proper adapters for them. Also make sure to retain or replace the flex hose support on the strut or you could have engineering issues. The adapter I used in my install required some very thin profile special nuts to attach the caliper to the adapter plate, so keeping a set of spares on hand would be a very good idea.
- Service kits are available for a very reasonable price ( about $10 USD )
- Adapter plates should run about $100 - 200 USD
- Wilwood calipers aren't that expensive... About $130 - 150 USD per caliper vs. $50 USD for an average 280zx caliper. vs $300 USD! for the Nismo MK63 Sumitomo 4 pot caliper.
MK63 Racing Brakes
Fits Z-car Struts and B310 large (13" wheel) struts. See Strut Swaps.
These were the FIA brake calipers, offered in the Nissan 'Sports Option' parts lists in Japan, and through Datsun Competition in the USA. They were fitted to most of the works 240Z and 260Z rally cars, most of the works circuit racing 432R and 240ZR race cars, as well as many of Skyline, Sunny and Violet race cars.
- Approximately 50% more pad area than stock 240Z brakes
- Require removal of the backing plate. Complete bolt-on.
- Feral used 261 mm diameter or even 253 mm rotors.
- early S110 rear discs and calipers were small and very light and fit under 13's. The discs were same as R31 skyline...discs and calipers came on an E-PS110 Z20E powered with FS5w71B & HB 38
rear axle. It had an SX badge on the rear hatch.
Nismo MK63 Sumitomo 4 pot calipers
- 89.9 bolt spacing
- Has four 41.3 mm pistons
- Caliper repair kit 41120-68225 fixes all seals for one caliper
-
- Replacement piston 41124-68200
-
M59 formula brake pads
MK63 Solid Rotor
For stock 240Z solid rotor, and stock 240Z strut. Available from Courtesy Nissan $700 USD
- 41000-E7201 FIA Caliper RH
- 41010-E7201 FIA Caliper LH
- 99996-E7050 Install kit (hoses, fittings, bolts, washers)
- 41060-RS610 M59S Compound Brake Pads
- 41060-R1120 M2800 compound Brake Pads
For B310, you may need to change the hub.
MK63 Ventilated Rotor
For 20mm thick ventilated rotors
- Calipers (41001-A1281 RH, 41011-A1281 LH)
- Rotor 40206-N3120 vented
- Installation Kit 99996-E7051, which includes:
- Caliper bolts (4 needed) 41250-RR610, M12X1.25X31.5
- Hose Gasket 46237-A4600 (6 needed) $0.38 ea. from B310
- Hose bolt 41128-F1800 (2), M10x1.0x26.5
- Brake hoses 41205-F1800 RH, 41215-F1800 LH
- Hoses from Nissan President?
- Rotor Fixing Bolt (8) 01111-00312, $2.22 ea. from B310
- 102 mm brake pads, 15mm total thick including backing plate
Needed for 240z up to 7/73
- 40202-N3426
Needed for B310 strut
- Hub 40202-A0127 from Datsun 810 (2 needed) $168.65 ea.
Pads
- 41060-A1281 M59S compound
- 41060-A1282 DS11 compound
- 41060-F0225 M33S compound
- 41060-E4622 M2800 compound
Photos - MK63
Brake Swap Notes
- A10 strut: corona hubs, magna rotors and 60series cruiser calipers, fit under 13" wheels with a 1mm grind 250mm rotors and 4pots under 13" rim
I managed to squeeze R32 280mm front rotors and sumitomo 4 spots on stanza struts -- custom caliper bracket mounts to std stanza caliper pick up points. I can still fit my 14 inch superlights over the them. benny
twin piston sumitomo calipers for sale, go straight onto stanza struts with the use of larger 200b or 240k discs...early 200b discs are 253mm, about 10-15mm bigger than stanza ones, but are offset to suit the twinspots everything is a straight bolt in 9592.jpg PIGDOG boofheads with slotted 240k discs 9585.jpg
With an adapter plate you can use Silvia calipers and rotors on a 120Y strut. The Kev Rowley special.
'universal' type coilovers for a Civic donated the springs
mid corner - turn 1 run 14s over R32 rotors and calipers. R32's are on stanza struts and calipers are the "sumitomo 4-pots". used C22 vanette hubs [have different offset, but use the same bearings] with the R32 rotors [ 280mm dia] had to make up braket for caliper as the center to centre spacing on the strut is 90mm and the caliper is 100mm. position of caliper to rotor relationship is spot on.....
Landcruiser 4 spot conversion on a c210 skyline strut and i dont think 13's will fit over the caliper. I am running FWD 14's for the offset aswell.
200b and stanza are solid discs.
feral's vented package using modified 240K twin spot calipers. http://www.datrats.com.au/BRAKES.html
on a stanza strut, vented 200b rotors (were they available vented?) with hilux/landcruiser 4-spots machined slightly to centre them over the rotor.
sunny struts, swapped left to right with Mistubishi Verada vented rotors and commodore calipers. I've also heard of rx7 4-spot calipers being used. All this fits under 13" rims.
sunny struts ,magna discs, girlock calipers...
CA18DET Wagon is go i took an r31 strut, and cut the spring perch off (the diameter of the spring is far too big to fit up the 1200 strut tower) and while i was at it chopped out about 2 inches from the actual length of the strut to accommodate some koni yellow shocks which i picked up cheap and had rebuilt (which is also cheap to have done). so the front end stiffness is adjustable with a little knob. because i had them rebuilt, i asked for the soft setting to have a hard rebound for goodweight transfer when i go to the drags. the springs are just some pedders lowered made for a stanza which i modified. it is just running the standard r31 vented disk and caliper. both of which are huge for a 1200.
you can also equalise the track by fitting a BW KE30 corolla diff, which is 30mm wider than the 1200 diff. then you have a car with 30mm wider track - back AND front - for better handling again! get the handbrake handle and cable too if you do this.
front brake upgrade 1200 ute i used a sunny strut leg unbolted the disc off the hub and bolted a cc lancer vented disc to that and then a used a 4pot caliper off a 80mod volvo which bolts strait onto the sunny strut leg
- 120Y struts
- B310 (sunny) hubs, outer edge turned down to 140mm
Rear Disc Brakes
The stock rear brakes are fairly good, a large (for such a light car) 8" x 1.75 brake shoe. Make sure the brakes and clean and adjusted correctly. Using a performance pad will improve it.
But for coolness sake... read the article Rear Disc Brakes.
Datsun 1000
gary hamilton managed to squeeze RX7 4spots on his 1000 sport sedan which uses 13" wheels, but don't ask me how! http://datsun1200.com/modules/myalbum/photo.php?lid=1372