looking for grooved/slotted rotors - any tips on type etc?

**Hanabi** · 07-17-2013, 12:19 PM

I need to get a set of rotors, just got a new motor and the rotors I have need to be retired STAT.

Any suggestions?

Grooved/Slotted is a must as I drive in triple-digits most of the time.

Thanks!

**tatertot91** · 07-17-2013, 02:23 PM

A lot of members here have had great luck with rotors from R1 Concepts. Quality rotors and reasonably priced

**2002ssslp** · 07-17-2013, 03:33 PM

For low dollars I have had good luck with Brake Motive on Ebay.

**pajeff02** · 07-17-2013, 05:02 PM

+1 for R1 Concepts slotted/grooved (or whatever you call them -- no holes) rotors. I installed them on our car along with Hawk pads and braided lines. Huge improvement!

**Hanabi** · 07-18-2013, 01:20 AM

so no holes, huh?

what's the advantage to having them don't they let the brakes cool down faster? I brake pretty hard.... but I will look into R1. Do they have a website?

**35th-ANV-SS** · 07-18-2013, 02:41 AM

I just ordered the drilled/slotted rotors with Hawk HPS pads from R1 Concepts. Just Google them. They run sales all the time.

**pajeff02** · 07-18-2013, 02:49 AM

Holes in rotors will generally develop cracks over time. R1 Concepts offers two levels of slotted rotors. I opted for the premium version which has a coating on the non-friction surfaces and they have held up very well: Premium Slotted Rotors

**Firebirdjones** · 07-18-2013, 04:45 AM

Another vote for R1 Concepts. I run drilled/slotted rotors on both 4th gens for several years and had them on my 72 blazer. No issues. Matter of fact, it stopped the warped rotor issues I was having with both 4th gens.

**JayTA98** · 07-18-2013, 10:28 AM

R1concepts. have their rotors for 2 years.

**0rion** · 07-18-2013, 11:32 AM

yep.....R1 Concepts here. I've ran slotted/drilled for years and know of 6-7 other cars that run them. No one has had any complaints with them. Good rotor for the money.

**Hanabi** · 07-18-2013, 10:41 PM

Oh now THAT got my attention! Awesome no warping sign me up! lol ok so where do I go anyone have a website or ?

**Hanabi** · 07-18-2013, 10:44 PM

OK ! Premium Slotted Rotors it is. R1 Concepts. Anything else I need to know? And thanks guys for the useful info (y)

**pajeff02** · 07-19-2013, 02:58 AM

The rotors will likely have an oily coating to protect them. You'll want to hose them off good with brake cleaner before installing them. It is also recommended that you bed the new pads and rotors after installation. Accelerate to 30 mph, and then bring the car to almost a stop with firm braking, repeat this process approximately 20 times being careful not to overheat the brakes. You'll get them just warm enough that you should be able to smell them when you are done. After the 20th cycle, continue to drive the car for a while to allow the brakes to cool.

**Firebirdjones** · 07-19-2013, 06:28 AM

My only other bit of advice is to pay a little extra and get the zink coated versions. Since these cars (with the factory wheels) show alot of the brake system, it does make a nice appearance for a long time, and looks better than staring at rusty rotors through the wheels.

All of mine are zinc coated and they still look like brand new after 5-6 years.

Another little secret, the drilled/slotted rotors are 1.5 lbs lighter per rotor than the stockers. That's 6 lbs. of rotational mass removed from the car

**cammed goat** · 07-24-2013, 06:09 AM

I run brake motive. I agree with brake motive/r1. Anything is better than rusted ass rotors.

**98TransAmWs-6** · 07-24-2013, 06:30 AM

I have never had any issues with cross drilled and slotted rotors cracking. I know it can happen but it really comes down to the quality and strength of the rotor. A cheap rotor likely will crack quickly from sustained abuse whereas a more expensive one which is great quality such as using iron grade 3500 or better will not crack(or not as prone to it happening). I have gone sustained speeds of 150ish or faster and have not had any cracks with brakemotive but I plan to switch over to r1 concepts. Plus like FBJ said cross drilled and slotted rotors are lighter.

**Firebirdjones** · 07-24-2013, 07:56 AM

I'm not sure where that fear of cracked rotors comes from, but my first guess would be hard abuse with extreme heat. Next guess would be cheap material like you mentioned.

I don't autocross our cars so it was never a concern for me. Just daily drivers, but living up in the mountains does require some curvy mountain terrain occasionally. Several years now and not a single issue with my drilled/slotted rotors, on 3 different cars. I'll use them again for sure.

**98TransAmWs-6** · 07-24-2013, 07:59 AM

I road race and have not had a failure or any cracks yet.

***SMWS6TA*** · 07-24-2013, 08:12 AM

Just looked them up and damn much cheaper in price then I thought.

Premium Series Drilled & Slotted
Front: $ 195.98
Rear: $192.98

Their E line series Drilled & Slotted
Front: $ 121.98
Rear: $114.98

**Firebirdjones** · 07-24-2013, 11:43 AM

They'll bargain too and run specials off and on.

The last set I bought for our 4th gen was front and rear together, premium coated drilled and slotted, with ceramic pads included and shipped to my door for $220