*Z2 Brake upgrade - and issues...

[gianttomato]

I'd be looking at these.....

[takai]

Now that be horn.
I wouldnt want to be looking at the bill.

[BlackSupra]

Apparently JZA80 calipers measure 70mm from the rotor face to the outward face of the caliper.

I only have 57mm to play with and i can't increase the hat height any further without fouling the steering arm.

Due to the bolt spacing issues the summitomo nissan 4 spots have been ruled out as the calipers cannot gain full face pad contact on a 324mm rotor (which will be required to mount the caliper as they can't get in any closer for a smaller diameter rotor.)

R33 GTR brembo's will also foul the back of my rim.

Going to borrow some brakes and mock them up and see how i go with those.

[takai]

You may also want to consider some Mazda RX7 Series4/5 4spots, or even the S6/7s. They tend to be more customisable than the Sumitomos.

[BlackSupra]

Need to minimise 'A'.

They would have to be significantly narrower caliper than the R33 one to clear the back of the rim spokes.

[takai]

Yeah, the RX7 calipers are a reasonable amount narrower than the Sumitomos.

Fairly hard to see in this pic, but the close face is quite narrow. Esp compared to the fat arsed Sumitomos.

[MR 1JZ]

*subscribes to thread*

[CrUZida]

Bumping this thread with updates.

Been working on an A70/Z20 upgrade for a coupla weeks now, and finally got my ass into gear and did something.

The upgrades I am working on is
FPV BA GT 325mm PBR calipers to FPV BA GT-P 355mm rotors.



FPV option.








Here is a pic comparing 355mm to stock GZ20 277mm

[1200det]

Positive Rep + for you

Keep up the excellent work , Will you be selling the brackets at any stage ? Whats the pricing on the FPV Calipers and Rotors ?

[BlackSupra]

Positive Rep + for you

Keep up the excellent work , Will you be selling the brackets at any stage ? Whats the pricing on the FPV Calipers and Rotors ?

Ebay is your friend for the calipers.

[CrUZida]

Brackets should be for sale yes.

Rotors are around $700 new from RDA.
for $700 each from DBA (5000 series)

[CrUZida]

Well, update time.

Finally got the prototype brackets off the machinist.
Will need adjusting.



FPV stuff







Last bolt a toight squeeze here too

[zombie]

*bump* and +1 rep for CrUZida

-- EDIT --

are the FPV BA GT-P 355mm rotors a direct bolt on for the A70 or are modifications required for that also?

[CrUZida]

Discs are a direct fit over non ABS hubs.
Haven't tried fitting over ABS hubs.

You also need a hubcentric ring.

[RORZ_JZA70]

Nice, my brembos look good on the FPV rotors, I was a bit worried they'd look like the
R32 GTS-T calipers on the GTR rotors and not cover the full surface of the rotor but they look real good.

For those interested the R33 GTR calipers pictured are around $1800 for both the 4 piston front and the 2 piston rears.