Toymods Car Club Inc: Tech & Conversions => xA6x, xZ1x, xX7x + others 300ZX Brake Upgrade

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CrUZsida
Forums Junkie

I supported Toymods

Location:
Australia
Registered:
November 2003

xA6x, xZ1x, xX7x + others 300ZX Brake Upgrade	Mon, 22 November 2004 00:06

Here is a cheap, and effective brake upgrade, for those with the above cars, who want to keep 4 stud wheels. It uses 280x26mm Z32 300ZX rotors/calipers 280x30mm Z32 300ZX rotors/calipers (same calipers as above) or 296x30mm R33 Skyline rotors/calipers All these above are easily available at wreckers, and new rotors can be picked up from RDA or DBA or where ever. Ok, how do you do it you ask? Let me tell you. Take one standard hub. Machine the outside down to 144mm (stock is about 156mm) You get this Make ring to make new rotor fit on hub (ring is on left of photo) Heat fit ring to hub. Install hub back on strut. Place new rotor onto hub (after redrilling to 4x114.3) Install new caliper and spacer. Bolt new brake line up. And we are done. Now, the outcomes of this are as follows. Brake bias is pretty much factory. There is negligable difference in piston area between factory calipers and Z32/R32/R33 4 spots. You will increase the wheel track at the front by 16mm, as each rotor adds 8mm offset. This could aid in the choice of new rims though. You will need to choose rims carefully, one that will fit the new calipers. 15" rims WILL fit (on Z32/R32 discs) My 15x6" +20 offset L-type Supra/MZ10 Soarer don't fit, but my stock MX73 15x6" +20 offset do. You will need about 40mm from hub face to inside of spokes to fit these uber calipers. Stock MX73 has about 45mm, MZ10 Soarer has about 30mm She is close Comparison of stock MX73 and Z32 280x30mm Regarding new studs, you'll need to increase the length of the stud by 8mm Using "Nice Products" (http://www.niceproducts.com.au) S312 - LN36/RN105/YN60-67 Hilux, Most Drum Landcruisers (40-50-60-70 series), Most Magna's listed as 45.2mm long S312 ~ 9mm increase in length over standard. How much does this all cost? Here is what I paid. Z32 Calipers - $240 posted, off EBay. Z32 280x30mm slotted rotors, new - $100 each from RDA (http://www.rdabrakes.com.au) Caliper rebuild kit - $30 EBC Greenstuff pads to suit above calipers - $175 New brake lines (2" longer) - $50 Machining hubs - $20 Rings and spacer cost - will be about $50 New hub seals - $8 New splitpins - $1 New 8mm longer studs - $30 Total cost ~ $800 Not bad for NEW front brakes. Rings and spacers will be available for purchase from me. Cost is $55. You will just need to get your hubs machined. I can machine your hubs for you on an exchange basis, but you would be paying postage both ways. [Updated on: Sat, 01 October 2005 14:00] [Report message to a moderator]

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