Tuning tomroses on frames — part 1 — logbook Toyota Crown 1989
Any tuning begins with the brakes.
Roughly speaking, the dimensions / mass of the brake disc are proportional to the amount of energy that the engine can release for a certain period of time (acceleration time to 100 for example). When you start braking, all of this energy will go solely to heat the disk, or part of it (when the rest goes to wear the wheels).
The situation is aggravated by the fact that you tuned the engine for a reason, but to drive fast and actively. And it turns out that your requirements are greatly tightened for native brakes, and this despite the fact that even with a standard engine, native brakes are not particularly suitable for active driving (typical for the Japanese)
Therefore, if you tune the engine - in a good way, you should increase the size brake disc.
My task was originally a little different, I lacked the sharpness of the brakes, regular ugly. Therefore, although I put more brake discs (from the next generation, and this is necessary when installing other calipers, because they require a disc from 280mm), but the main goal was to ensure response speed.
Why increase the number of pistons on the brake disc? For uniform fit of the pads, and for the same response speed on each side (the piston and the bracket have a big difference in weight, so the piston moves first, and then, when it hits the disc through the pad, the bracket itself moves and the outer pad starts working) .
Why use SUMITMO calipers from NISSAN SKYLINE / FAILADY Z? For reasons unknown to me, the geometric fit of the caliper ears completely coincides with the frame crowns (such as the formula 100x100). At NISSAN, in general, many cars have exactly the same fit - SILVIA, PRIMERA, CEFIRO, etc. It is also very common to put these brakes on Hondas and other cars. Subar, Mazda and Mitsu have their own donors (WRX, RX7, EVO). Toyota also has (SUPRA, CELICA, CELSIOR). But with frame crowns, it turned out exactly like this - they are best suited from NISSAN.
Foreigners compiled this list of NISSAN cars with a list of front brakes that were installed on them:
R32 T: 280mm x 26mm (single pot sumitomo caliper)
R32 GTS-T (early): 280mm x 26mm (single pot sumitomo caliper)
R32 GTS-T type m : 280mm x 30mm (4 pot sumitomo caliper)
R32 GTR : 296mm x 32mm (4 pot sumitomo caliper)
R32 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper)
R33 GTS-25 : 280mm x 26mm (single pot sumitomo caliper)
R33 GTS-4 : 280mm x 26mm (single pot sumitomo caliper)
R33 GTS-25T : 296mm x 30mm (4 pot sumitomo caliper)
R33 GTR : 324mm x 32mm (4 pot brembo caliper)
R33 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper)
R34 GT : 296mm x 30mm (4 pot sumitomo caliper)
R34 GTT : 310mm x 30mm (4 pot sumitomo caliper)
R34 GTR : 324mm x 32mm (4 pot brembo caliper)
Z33 NA : 324mm x 32mm (4 pot brembo caliper)
Z32 NA : 280mm x 26mm (4 pot sumitomo caliper)
Z32 TT : 280mm x 30mm (4 pot ali sumitomo caliper)
S14, S15 : 280mm x 30mm (4 pot sumitomo caliper)
The disk for 141 (as well as 131 woads, restyled wagons) crown has dimensions 280x26. Those. the easiest way is to get up from the GZ32 atmosphere (minimum alterations), but there is infa (although for 300ZX) that it’s possible not any, but only 90 years, later they allegedly went 280x30. However, 30mm calipers (Z32 TT, R32 GTS-T type m) are also milled (3mm) and become able to work with a 26mm disc.
If desired, it would be possible to stick larger brakes, but due to the specifics of the Ramnocrown hub, it is very difficult (and possibly unrealistic) to choose a brake disc that will fit in geometry. Those. it's a much more difficult path.
The real budget for the front calipers: 4000-6000 rubles.
What you can read about the SUMITIMO NISSAN support:
importnut.net/300zxbrakeswap.htm - here you can read how to distinguish aluminum from iron brakes (donor 300ZX).
www.ek9.org/forum/brakes/...mparison-r32-r33-ek9.html - here you can read about the dimensions and weight of the calipers
www.toymods.org.au/forums...thread.php?t=24826&page=3 - here compared the support too, there is a small educational program with pictures.
wiki.r31skylineclub.com/i...ke_Upgrades_Miscellaneous - there is also a comparison and educational program, in terms of installation on the R31.
Next time I will tell you how the calipers are remade so that they can be bolted to the crown hub. Good luck everyone!
Issue price: 5 300 ₽ Spare parts Brake hose 40006000 TEXTAR
tnet
Well, firstly here: baza.farpost.ru/auto/gt/
Secondly here: japancar.ru/
You just need to wait for it to appear and buy it.
I won’t say anything about the pads, I know that one of the best sports ones is project-mu, but they cost more than calipers :)
I ride original NISSAN-SUMITOMO pads (blue in the photo), which came with the caliper, the rest was 70%. As I expected, they turned out to be much more biting than my previous asbestos-free nishinba (black).
Pad numbers for these calipers:
NISSAN AY040-NS003
JNBK PN-2358
Kashiyama D1131M
Sumitomo SN258P
Nisshinbo PF-2220
now I constantly monitor the caliper for 4 pistons myself) thanks for the links
tnet
Well, firstly here: baza.farpost.ru/auto/gt/
Secondly here: japancar.ru/
You just need to wait for it to appear and buy it.
I won’t say anything about the pads, I know that one of the best sports ones is project-mu, but they cost more than calipers :)
I ride original NISSAN-SUMITOMO pads (blue in the photo), which came with the caliper, the rest was 70%. As I expected, they turned out to be much more biting than my previous asbestos-free nishinba (black).
Pad numbers for these calipers:
NISSAN AY040-NS003
JNBK PN-2358
Kashiyama D1131M
Sumitomo SN258P
Nisshinbo PF-2220
Yes, there is such a problem with projectors, but you have to pay for quality ...
Well, firstly here: baza.farpost.ru/auto/gt/
Secondly here: japancar.ru/
You just need to wait for it to appear and buy it.
I won’t say anything about the pads, I know that one of the best sports ones is project-mu, but they cost more than calipers :)
I ride original NISSAN-SUMITOMO pads (blue in the photo), which came with the caliper, the rest was 70%. As I expected, they turned out to be much more biting than my previous asbestos-free nishinba (black).
Pad numbers for these calipers:
NISSAN AY040-NS003
JNBK PN-2358
Kashiyama D1131M
Sumitomo SN258P
Nisshinbo PF-2220
The brakes are good, my friend rode on the 33rd Skulin, I liked it :)
But here's where to buy 4-piston Sumimoths at a price of 4-6k for 2 calipers is a mystery to me ... :(
To be honest, I have never seen them anywhere cheaper than 8k. Can you share some info? : )
And I would like to hear feedback and advice on choosing pads for such brakes, if not difficult :)
so it is clear that the merit is not in the invention of the 4-piston, namely this particular caliper)).
SUBARU and MAZDA calipers in their top cars - there are all the same SUMITOMO and BREMBO. And they look exactly the same (although they differ geometrically).
IMHO, Nissan's merit is only that such brakes are on Nissans.
tnet
strangely, everyone around (turerv.ru) says that Nissan
is good from Celsus with minimal alterations, but this is the merit of sumitomo and brembo :)
any of these firms is a supplier for Nissan, which was the initiator of the production of this particular type of caliper. Credit here to Nissan for engineering innovation and manufacturing initiative.
for the 90s and 100 and 110 yes! but not in the 80s! it’s also easy to remake supra names, only in the case of a selsior there are several options for reworking, some of which allow you not even to turn to turners :)
strangely, everyone around (turerv.ru) says that Nissan
is good from Celsus with minimal alterations, but this is the merit of sumitomo and brembo :)
and for some reason markovody 80ki also put just such ... well ... nissan is good, the selsior is not an option for us :) well, by the way, I put the material together ... the links are very useful!
Yes, the pads are good))) The discs do not even turn black)))) And they slow down normally.
Hello, but tell me, ie from 32 fashki fit both the rear and front?
I mean, if I buy them and I have 280 wheels, then I just put them in the garage and that's it?
There is a topic about milling from the crown club "brake tuning on frames". But there is a man without much detail said it.
Although the post is 10 years old, but still) Do you have any experience in milling halves from 30 to 26 disk? I can't find any living examples.
I didn’t deal with the rear ones ... but there are only adapters, I haven’t heard about other options
Greetings 🖖 And you didn’t redo the rear brakes by chance, now you’ve taken up this issue, I want to completely replace it, there are no problems in the front, but in the back, as I understand it, only if through spacers, so I’m thinking how to implement