How To Differentiate S4 And S5 Na Rotors?

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Nov 21, 2003 | 11:29 AM

treceb

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to infinity & beyond, me

Joined: Aug 2001

Posts: 5,124

From: santurce

are there any visible physical differences between the 2? thinking of having a buddy pick some up from a friend and wanted to make sure they are indeed S5 rotors.

thanks

Nov 21, 2003 | 12:01 PM

mazdaspeed7

Super Moderator

Joined: Sep 2002

Posts: 2,763

From: Savannah, Ga

The bathtub in S4 is cast, and machined in S5 and S6.

Nov 21, 2003 | 12:28 PM

treceb

Thread Starter

to infinity & beyond, me

Joined: Aug 2001

Posts: 5,124

From: santurce

thanks...but that means, what exactly?? is the surface smooth vs rough? or can u see an actual casting line?

Nov 21, 2003 | 12:54 PM

j9fd3s

Senior Member

Joined: May 2002

Posts: 22,465

From: California

the s4 is bumpy cause its just a raw casting, vs the s5+ machined chambers

mike

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