advice on drilled and slotted rotors? PLEASE HELP!

[jlbuckalew]

hey im about to order some drilled and slotted rotors... i am having a hard time on deciding between kinetic and callahan drilled and slotted rotors... the callahan are a little more expensive but i have no problem paying the extra money if its worth it. any help and advice would be greatly appreciated... does anybody know about either of the two and if so have u heard anything about them?

[Ilya]

Just get the brake motive kit on EBay. A LOT of people have that kit and for $200 for all four corners, it's a great bargain.

[jlbuckalew]

Thanks man I just ordered them and it was the deal from brake motive just they were Callahan sport drilled and slotted rotors and pads. It was an awesome deal! 193.05. Legit!

[Larz]

I'm going to ask you lot because I've 'heard' that slotted / drilled rotors cause the pads to wear out very quickly and increase heat build up on the pads during braking at higher temps than standard rotors. Trouble is that when you 'hear' something, you never know it that person is talking out their arse.

Looking at it from my science background, I'd say drilled / slotted rotors would decrease residual heat as there would be channels through which heat is released instead of the pads being jammed against a solid surface with no release of heat build up until they disengage from the rotor. As for brake pad wear, isn't that more a result of the kind of braking you do such as high speed braking Vs city stop-n-go braking?

We all started with standard rotors so no info needed on that idea, but If those of you who actually USE the slotted drilled rotors could provide any info about these issues, I'd greatly appreciate it. I'm about half thru the front brakes and nearly new on the rears, but when the front's go ... the deal from brakemotive is so great I just might do all four corners to have new brakes all around. Have you noticed issues with heat or what could be premature wear of the pads?

[Ilya]

My brakes lasted me about 40k and that's with them getting used HARD at times. Take that for what you will. I'm on my second set of brake motives now.

[pedsemdoc]

+1 for what Ilya says--just search Brakemotive and you'll see about 99% of users on this forum are/have been quite happy with them.
If I recall correctly only 1 member said he warped them in a very short time, but I think he said he has warped a whole lot of other rotors too, plus he takes his ride to the track.

I have 40K+ miles on mine, and I definitely step on mine although it's my daily driver. Had to avoid a big plastic traffic barrel that was rolling around in the fast lane during a dark patch on the highway last night--went from 65+ mph to like 15, plus swerving to avoid hitting it and the brakes were controlled and predictable.
Man, the handling in this car for being a large sedan is pretty f*cking amazing--and on am on stock struts/suspension. I can only imagine what it's like slightly lowered on the aftermarket stuff...

Once installed you have to properly bed them in--I spent a good hour going from 55-60 to full lockup, but not completely stopping for more than a sec, about 10-15 times after I installed mine.

The OEM rotors rusted like a big dog--UGLY!!!! These things still get compliments, maybe not as nice as the Akebono BBK, but for $200, it's a no-brainer.
I've had controlled emergency stops with no squealing, whirring, or other annoying noises.

I'll definitely be getting another set when it's time.

[jlbuckalew]

Yeah the purpose of the drilled holes is to let air and heat flow come out rather than stay behind like standard rotors and brake motive sounds good but they were a little cheaper than the Callahan and the brake motive had alot of terrible reviews with 30 days. I went ahead and went with the Callahan pad and d&s sport rotors. It was with brake overstock and they had mostly all awesome reviews and was still really cheap 193 compared to like 178 for brake motive. Thanks alot for everybody's help

[jlbuckalew]

Oh and I just ordered more rims. ADR revolver staggered 19s. They are gonna be sick. Will add pics when completed prolly end of next week. 3 sets of rims. Why not? Lol

[Larz]

Thank you all for responding. And, thank you in advance to those who respond after this post. It's great to have a place like this where you can get reviews and opinions from people with first-hand experience.

[Ilya]

I don't know why Brake Motive had bad reviews. I've gotten two kits from them (and a cousin in UKRAINE has gotten another for his QX56) and we're both happy. Not to mention, at least for my two kits, their shipping times have been impressive. Only a couple of days.

[Larz]

I can't work out why there are bad reviews either and I just read some reviews from auto places and from private customers. I had a time finding bad reviews but this one is typical of the bad ones I read: - someone who used the rotors on his Corvette and they cracked after he had been racing with them - and he got a response from Brakemotive stating they clearly do NOT recommend this product for racing, but they STILL offered him a choice of replacement or refund!
On Ebay, they track feedback from customers and Brakemotive has over 102k sets sold with a feedback score of 99.8% positive. That figure is Ebay tracking from actual customers who purchased this product, not seller submitted data.
Perhaps the 'bad' reviews were from people who didn't use or install them properly?

[jlbuckalew]

You are exactly right and I totally agree. Everybody on this forum certainly says good things but also that's limited in itself also I go by the reviews not just negative but what product they are writing negative about as so the eBay sellers like this don't offer just one product so I go by what I've seen review wise on the certain product and do what I think it right. Anybody can get burned no matter if u was to buy an all brembo brake system some stuff just had defaults so for me seeing positive at the exact product about what I'm buyin no matter if its a lil more 15 bucks lol Im gonna go with it. U never know I may get burned by these people and have to go with brake motive and it could always work vice versa. Also I look at the specs in comparison with the competeing brand weight, cooling valves, the way it's plated and what specifications it has been designed by etc all of those things play a huge factor no matter what some off these jack asses say on eBay cause there are some idiots out there. People that leave negative feedback for simple things piss me off especially when ur tryin to make extra cash lol cause that's happened to me an if I could have seen this guy face to face I would have pimp slapped him lmao but take care man. Thanks again for all the advice. In the end it's what works best for u and makes u happy. Example I had alot of people try to steer me away from the injen sp1991 CAI and I love it. No problems with it whatsoever and it makes me happy. U just got to do what feels right and no listen to the next man all the time I know that's got my a** in trouble alot in the past haha. Take care

[jlbuckalew]

hey everybody i just yday put on the callahan drilled and slotted zinc plated sport rotors and pads and they turned out sick! its amazing how little details really make and set your car off... if anybody else wants to give them a try search brakeoverstock on ebay the callahans were 193.05 shipped... have a good week everybody.. oh and the rotors come with two sets of pads also

ADR revolver staggered 19s will be in this weekend... ill update after i put them on saturday if anybody is interested in the ADR design revolvers they have a hell of a deal goin on right now... 19x8.5 front and 19x9.5 rear.. let me know and ill lead u in the right direction

[merlinq2]

Drilled rotors will help gases escape- they do not cool the brakes per say- the brakes use heat to stop the car, the hotter the brakes the better the brake feel, the better the clamping power and well braking.

The holes and slots help gases escape and this allows for a better contact patch between the pad and the rotor.

Look at a high end AMG benz, not slotted but drilled- the drilled rotors last longer and can be serviced(milled/turned), slotted rotors can not be milled.

I had the brake motive kit on my car, they worked well, they did not our perform my stock brakes. I had to replace my rear rotors due to a sticking caliper. I went with a Brembo rotor kit for the rear they are in excellent shape and will be turned this summer. The pads are in great shape thanks to the strong thick brembo rotors.

One word of advice, every two or three months go out and re do the bedding in procedure. This will clean the rotors and help the pads re seat themselves. I find that new pads every six months is a key service item. Of course to each his own.

The Nissan engineers built a good braking system and the oem set up is complimentary to our heavy sedans. So Brakemotive is cost effective, it looks good and from a cost and operational value perspective, they are a great solution.

Good brakes are a result of good service intervals and re bedding (cleaning the deposits and redepositing brake pad material) is paramount to good overall service life.

Good luck-