cmf

I've had my replacements on for a month or two now, several car washes. Here's what happens w/ StopTechs replacements.



As you can see, there is a nice band of rust. This does not happen on the stock rotors because of the black coating on the actual rotor surface. Now, StopTech does put the black coatings on the hat of the rotor, but not on the surface area of the rotor, so where the caliper does not allow the pad to grab a specific surface area of the rotor, rust builds up.

Here is a pic of my rears from Rotora.



As you can see, there is no rust band cause Rotora actually puts the black coating on the rotor surface, just like stock, hence a "replacement rotor".
Well, I e-mailed StopTech to ask about why they did not coat the surface and what would they do to fix it cause it looks like crap (not in those words though ).
Here is their response, copied from my e-mail.......

The band of rust you are seeing on your rotor is a result of how Acura positions the pad on the rotor face; choosing for some reason to use a pad set-up that does not cover the entire face on the rotor. If you would have ordered your front rotors from Rotura, you would see the same issue. When the rotor hat is black coated, the coating is only the hat portion, not any of the rotor face. On the rear, the brake pad covers more of the rotor face, making the band of rust less of an issue. Had you ordered rear rotors from us and front from Rotura, they would be answering your concerns. We do not put any coating on the rotor face due to some rotors being used with more than one pad set-up and running the risk of coating where the pad may touch on a different application. Also, the rotor face runs very hot near the pad and any coating would burn off.



There really is no fix, unless you wanted to try and clean and paint the band of rust with a high temp coating.



Please let me know if I can offer any further explaination.



Best Regards-



Matt Weiss

StopTech, LLC


I replied back that it has nothing to do with the pad, it's the caliper that allows a pad to grab the rotor, and that Acura and Rotora BOTH put the coating on the rotors.
Needless to say, my point is, DON"T BUY STOPTECH REPLACEMENTS unless you want your rotors to have a nice band of rust on em. It's not to say their BBK's are no good, but the replacements look like ass after a few car washes. To me it's crappy customer service as well for his reply, but I also let them know I was gonna post this on the forums and show them the response I got. Maybe that will get em to fix things or they'll start losing money. Who knows.
Sorry this is so long, but I feel less stressed now having vented to other enthusiasts.
Time to find some new rotors for the front of my car!

MarkPinTx

Bit touchy about our brake rotors arent we?

jiggaman

that's absurd that they would sell rotors that look like that after only a couple washes.

cmf

How many shows have you been to and see a judge award points for rust?

xizor

glad you let everyone know about bad service, so that's :thumbsdn: DC Sports and StopTech now. Why did you buy rotors from different companies though?

tony4311

who buys brake rotors for looks?

cmf

It's not to buy them for looks, and if it was for that reason only, what does it matter. Performance gains were already noted in another thread, but when you have different rotors on your car at a show, you can assure yourself it affects your points obtained by having a dirty car, and one with rusted parts for that matter.


Xizor-- I went different rotors, cause StopTech stopped making the rears (same as accord), something about a lost contract/ deal with their rotor manufacturer
Not too sure they make em yet at this time as well. Half the guys over there will sell you a set, but will call a week later to tell you they don't have em. Which happened to me twice!

TSX007

Very interesting....I almost went the same route(Stoptech front/Rotora rears), but decided to go the cheaper route Rotora all around. I'll let you guys know if Rotora fronts rust the same.

cmf

Do you have the Rotora rotors already? If so, can you post a pic of the fronts for me please.

Tsex on 19s

how much was the rotora setup. both front and back?

TsxVengeance

stoptech's quality is abit better than rotora but rotora gets the job done just as well.

TSX007

Not installed yet, still waiting for the pads to get here but will post pics on this thread

TSX007

Total price for 4 rotors only was $335.80. Add about $100-110 for Axxis Ultimate Pads for all 4's

e_lectro

Thought you guys might be interested in the info I got from StopTech today:

and

mg7726

nice. about time stoptech get off their arse and paint them - and make the rears. i like their products, hopefully get a full F/R set for my TSX

e_lectro

Anything has to be better than my second set of messed up OEM rotors.

kaikai114

hey guys,

since the rotors are the same size to the OEMs, only that they're drilled, how significant did you guys feel the increase in braking performance, was it worth the money in ur opinions?

cmf

with new pads as well, it bites a bit harder. I feel like I have a bit more pedal response. In regards to braking distance....don't think it helps, but it might a little.

Dan Martin

Slotted/drilled rotors will help after repeated stops. If you were to do a test with stock rotors and did 4 or 5 quick stops from 60, you would see your braking distances increase each time. With slotted/drilled rotors, that distance increase will be minimized.

You're unlikely to feel much of a difference on the street with slotted rotors but on a track or autocross the difference should be quite noticeable.

DEVO

I could be wrong, but slotted rotors are designed with heat build up in mind. Where drilled are designed with cooling and better brake performance in mind. There are certain rotors/pads combo that work better when heated to correct temp.

Dan Martin

Slotting and drilling both accomplish the same thing. Slotting is preferred because it doesn't decrease the structural integrity of the rotor as much as drilling does.

e_lectro

I defianately saw the results of this with the stock rotors on the Highway the other day. I had never been as worried as when I realised I was almost not able to stop in time. In addition, the slight "warpage" I had dramaticly increased with the heat build up to where the wheel was hard to hold onto and keep straight.

dom

Looks like on on my second set as well. When I do have to pay to have my rotors replaced, it will definently not be with OEM's.

TSX 'R' US

I'm starting to feel my rotors being warped again...for the 2nd time!! Though, mine were resurfaced and not replaced..

e_lectro

Speaking of rotors, have any of you heard about these?

http://www.acura-tsx.com/forums/showthread.php?t=15078

dom

Sounds promising, I wonder how they compare to the stoptechs? Pricing is also set to be under that of the $325 F and $275 R Mugen rotors.

The Stoptechs are $212 a pair F and R.

Maurice

Taking my car in for 11, 000 mile service on Saturday. 2nd set of brake rotors. Warped again. Acura needs to redesign this part. Should offer a cross-drilled or slotted replacement.

MrHeeltoe

iTrader: (1)

I just got my dealer packet in the email from Racing Brake.....I am going to post up pricing soon.

I am also planning to geta pair soon for my own car to take pics and review them for us all...

dom