300ZX calipers size help needed... 26mm or 30mm

[vutony]

I have SSR rims 15x7f and 15x8r + 0 offset 4x114.4 bolt pattern with205/50/15 tires. I know the 26mm will fit the stock 7 spoke rims but dont know about the ssr. Any info would be appreciated, thanks.

Can I fit the 30mm or only 26mm???

Which one is better aluminum or iron???

And is there a difference between the turbo and nonturbo model???

[crzycav86]

Is there an uber-jdm-tyte lip on those rims? If so, don't count on clearing 30mm calipers.

And by the way, not all s13 alloys clear the 26mm calipers. There is a certain casting that will clear, and another casting that will not clear. There was another thread that had pictures of the two if you're interested...

To answer your other questions... The aluminum is good because it's lighter. Less unsprung weight will help with handling. The iron is good because it can take more heat and is less likely to warp.

This site should answer all your questions: http://importnut.net/300zxbrakeswap.htm