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I was thinking the same thing, that it could be the pads. But the mechanic said they were the same size.
I doubt the 376mm pads would even fit in the 326mm calipers anyways
Mecahanics aren't the 'sharpest tools in the box' ;-)
Remove the wheel, hold up one of your old pads (in a similar area to the caliper) to see what likely rotor coverage it has. That is the easy way to tell if it's the pad or rotor that is incorrect.
If the top hats are the same size for the 326mm and 376mm rotors I wonder if Wortec simply turned/cut the outer diameter of the larger 376 mm rotor to turn it into a 326mm one. That might explain the contact area on your rotors close to the hub.
It is approximately 51 mm or 2" on my car with 326 mm rear rotors. Looks like that is what you have too but in the wrong spot near the hub. However from looking at your photo above it looks like the pads are only contacting the inner part of the rotor.
Very happy to hear they are offering the 326mm rotors if they get them right.
Ok thats very strange that your contact area is also 51mm? Now im wondering if velocity ap send me the larger rear pads in the smaller rear pad box? I know the mechanic said they were the same size. But this doesnt make sense now.
Would the larger pads even fit in the smaller caliper?
Originally Posted by Unhingd
Do you have the same issue on both sides of the car?
Present on both sides. Its actually more noticeable on the passenger side. you can see that the pad is only contacting on the lip and outer edge.
Called porter field the larger rear pads are 4mm difference in height and 10mm difference in width. So they would not fit in the same caliper.
As someone (the only one?) who has changed the 326 mm rear brakes for 376 mm, I can confirm that the 376 mm pads do not fit in the 326 mm calipers and vice versa.
The "look" the same but they ain't!
Also, the swept area of the discs is not a helluva lot different in width, it's just that the swept area on the 376 mm discs is "pushed out" from the hub with a roughly 25 mm wide "blank" area around the hub.
When I first looked at the pics in the original post my immediate thought was "these are 376 mm rotors with 326 mm calipers and pad placement".
Either that or Wortec have created the 326 mm rotors using the 376 template by shaving off 25 mm from the outer edges, when the 25 mm reduction in radius has to be from the inner edges of the swept area.
Either that or Wortec have created the 326 mm rotors using the 376 template by shaving off 25 mm from the outer edges, when the 25 mm reduction in radius has to be from the inner edges of the swept area.
I had exactly the same thought in my previous post.
As someone (the only one?) who has changed the 326 mm rear brakes for 376 mm, I can confirm that the 376 mm pads do not fit in the 326 mm calipers and vice versa.
The "look" the same but they ain't!
Also, the swept area of the discs is not a helluva lot different in width, it's just that the swept area on the 376 mm discs is "pushed out" from the hub with a roughly 25 mm wide "blank" area around the hub.
When I first looked at the pics in the original post my immediate thought was "these are 376 mm rotors with 326 mm calipers and pad placement".
Either that or Wortec have created the 326 mm rotors using the 376 template by shaving off 25 mm from the outer edges, when the 25 mm reduction in radius has to be from the inner edges of the swept area.
OK thanks!! Now I definitely know it's the rotors & not the pads. Hopefully wortec solves this quickly
OK thanks!! Now I definitely know it's the rotors & not the pads. Hopefully wortec solves this quickly
Please let us know if/when the issue is corrected. I am really interested in getting a set of Wortecs for my car but I don't want to upgrade the rear calipers to accommodate the larger rotor.
Please let us know if/when the issue is corrected. I am really interested in getting a set of Wortecs for my car but I don't want to upgrade the rear calipers to accommodate the larger rotor.
Absolutely the fronts look great. Not sure of the performance yet.
Driving around today I actually realized the touch when driving...
I think I see what they did. It looks like they just took the 376 mm rotors and cut the diameter down by 50 mm without realizing that the 326 mm rotors have a smaller inner radius on the swept area. They should’ve machined down another 5 mm on the radius. You could have that issue resolved at a local brake shop with a rotor turning machine.
I think I see what they did. It looks like they just took the 376 mm rotors and cut the diameter down by 50 mm without realizing that the 326 mm rotors have a smaller inner radius on the swept area. They should’ve machined down another 5 mm on the radius. You could have that issue resolved at a local brake shop with a rotor turning machine.
Oh I thought they cast new rotors entirely for the smaller rotor. Waiting for their reply on machining new rotors. Didn't pay this much to just have semi functional rotors haha
I think I see what they did. It looks like they just took the 376 mm rotors and cut the diameter down by 50 mm without realizing that the 326 mm rotors have a smaller inner radius on the swept area. They should’ve machined down another 5 mm on the radius. You could have that issue resolved at a local brake shop with a rotor turning machine.
I thought OzXFR and I already made that comment. But now that you have too it must be a valid conclusion.
