ISM Gray

Hi everyone, I've had my TLX for a few months now and I've already had the rotors resurfaced. I don't want to go through what I what I experienced with my 2003 type S. Non stop warped rotors... I eventually found cross drilled and slotted for it and this alleviated the problem. Have any of you found an upgrade for 9AT?

justnspace

iTrader: (1)

^drilled rotors will crack. it's just the nature of the beast with multiple closely drilled holes taking away surface area.

2nd of all; warped rotors is a misnomer. it's actually pad material built up on the rotor.
turning/machining will alleviate the un-even-ness of the pad deposits.

slotted and drilled rotors are PURELY aesthetic and do not add any function

ExcelerateRep

I looked into it, and Stoptech offers their cross drilled+slotted rotors for the TLX. They don't have them in stock at the moment, but we can get them shipped out in about 3 to 4 weeks. Shoot me a PM if you have any other questions!

NBP04TL4ME

I might consider slotted, but would never do cross-drilled for the reason justn mentioned.

justnspace

iTrader: (1)

i'm running slotted rotors; but i dont think it helped with stopping distances....

Treblig

I'm running cross drilled and slotted rotors, can't say that stopping distances have been improved either. However, the brake pads certainly feel like they "bite" harder.

Ero

Slotted rotors will probably eat the factory pads for dinner

Also OP, I had that same generation TL-S but an 02...Only time it warped rotors was when I bought crappy, but expensive 'top of the line' ones from Raybestos.

I swapped them out for Bosch rotors + akebono pads and problem solved forever.

Speaking of which, what the hell is the stock rotor/pad combo on TLX V6? I'm thinking of getting some 'bitey-er' pads!

BellaTLX

Better brakes would be great.

slats

Drilled and slotted rotors do serve the function of keeping your rotors cooler and allowing outgasing of the pads which eliminates float.

What I can't figure out is why the TLX has a 19' longer stopping distance from 70 than the 328i which shockingly has smaller rotors both front and rear. Maybe it's the tires?

Either way I plan to do a brake upgrade if I buy the TLX. Drilled/slotted rotors at minimum but possibly some sort of upgrades calipers as well

Treblig

Pads could be a contributor.

accord1999

I think it's a significant contributor, there are C&D instrumented tests of 3 and 4 series with all-season tires and they have noticeably worse braking performance as compared to those equipped with summer tires:

2012 BMW 328i Sedan Automatic Test ? Review ? Car and Driver

2014 BMW 335i xDrive Gran Turismo Test ? Review ? Car and Driver

2015 BMW 428i xDrive Test ? Review ? Car and Driver

I really wish that Acura had summer tire package though so the car magazines could do a test on it just to see if there's an improvement in braking.

sixkplus1

I've traditionally never liked factory pads. Or at least I've never owned a car built well enough from the factory with proper pads. I would purchase upgraded pads and go from there.

BellaTLX

This guy again:/ Sure haus. Whatever you say. Purely aesthetic LOLZ OMG HAHAHAHAHAHAHAHAHHAJA

musty hustla

I used to have cross drilled and slotted rotors, I didn't like the sound they made. I reminded like some softly shushing me in a library.

NBP04TL4ME

what did I miss??

csmeance

Float used to exist with old binding material outgassing when the pads got hot. Newer pads don't have any such gassing.

Slotted rotors help with the "bite" of the brakes and I recommend them for the front rotors. If you put it on the rears, you'll be going through pads on the rears faster than the fronts, although the stopping power added is great.

Cross-drilled are either a hit or a miss, they are used in applications where weight is crucial and fast cooling is needed IE racing. 98% of drivers won't need cross-drilled rotors

Get some good pads, Racing Brake makes some great pads and rotors. I've had the same set on my 3G TL for almost 130K without needing them resurfaced. I had the factory ones resurfaced 2x by 60K miles.

I put a slotted set on my MDX and it helped out a lot too!

AZuser

justnspace insulted his love for plastidip. got butt hurt.

https://acurazine.com/forums/photogr...x-tech-930970/

NBP04TL4ME

Looks like one of the Mods had enough as it looks like he was banned.

rocket_pup

Cross drilled rotors just shred OEM brake pads, and have a highly likelyhood of cracking. Slotted may be a little better, but still shaving them.

I don't think putting new discs on is of too much benefit unless you'r going to track the TLX, and then I would consider a (big) brake kit instead.

OEM brake calipers are 2 piston, right?

K3RMiTdot

got slotted for my old car useless. cant even remachine them

csmeance

Slotted rotors can be resurfaced! Most shops don't want to do it as it wears down the machine much more than regular rotors.

rocket_pup

Unless you autocross or track, cross drilled / slotted rotors are a waste of money. Same for a BBK. For everyday driving, it's best to stay with Honda OEM parts, IMO.

For the TLX, I think the safest thing to mod is the suspension/tires/wheels and interior.

A while back I tried "upgrading" the rotors and pads with Brembo solids and semi-ceramic pads... worst mistake of my life. The squeeking would never stop. I went back to OEM, and no problems at all.

csmeance

Semi-Ceramic pads are the issue! Metallic pads are terrible at keeping quiet!

Brake upgrades can be terrible or great depending on the quality of parts used. Cheap no-name, no research parts are going to deliver terrible performance.

ExcelerateRep

We sell tons of StopTech axle packs, rotors, and pads; I'd say about 95%+ of people have never had an issue with them!

Drilled and slotted rotors are mostly for ascetics, but not entirely. They allow some heat to get under the pad which means less brake fade, but brake pads really play a big part in how your brakes feel. Switching to a bite-ier pad (wether it's on a blank rotor or a drilled/slotted rotor) will always offer you a noticeable performance increase, and to really see a performance increase out of the rotor you'd need to increase size so it has a higher heat capacity.

I tend not to recommend the drilled rotors to people unless they're going on a designated track car. Track cars tend to have parts refreshed more often, (sometimes before the old parts are at the end of their life) and since drilled rotors are technically the weakest, and can be somewhat prone to grooving; it's better to change them at a shorter interval just to make sure you don't end up with a rotor in rough shape that eats through pads.

You can see all of our brake products here: Brakes - Excelerate's Honda & Acura Store - Japanese Performance Specialist

Feel free to send me a PM if you need help with something or would like a quote!