q45 and 300zx rotors

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denas240
Posts: 59
Joined: Wed Sep 26, 2007 8:58 am
Car: 1990 240sx

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i just want to know if q45 and 300zx rotors are the same because im planing on upgrading to 300zx brakes and i already have q45's. oh and i have 4 lugs. thank you for your info


s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

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i think outer diameter is the same but the z rotors are thicker

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denas240
Posts: 59
Joined: Wed Sep 26, 2007 8:58 am
Car: 1990 240sx

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so i could use the same rotors then right

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Crazyirish
Posts: 685
Joined: Sun Sep 16, 2007 8:47 am
Car: Nothing noteworthy at the moment...

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300zx rotors are either 280x26mm or 280x30mm. q45 are 280x28mm. You *should* be able to use the 26mm wide z rotors. I believe the min rotor width for the q45 is 26mm, so you might be overextending the piston once the rotor started showing any significant wear.

S1ns3mella
Posts: 1
Joined: Mon May 19, 2008 1:17 pm
Car: 1993 240sx coupe

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i am interested in swapping my rotors and calipers as well but was curious if the master cylinder should be swapped out too since everything is going to be larger than stock

s13point5
Posts: 411
Joined: Fri Mar 03, 2006 9:59 am
Car: 89 240sx

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S1ns3mella wrote:i am interested in swapping my rotors and calipers as well but was curious if the master cylinder should be swapped out too since everything is going to be larger than stock
if you are going from stock to 300zx brakes then yes you should use the z master as well


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