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

This is a discussion on looking for grooved/slotted rotors - any tips on type etc? within the General Help forums, part of the LSx Technical Help Section category; I need to get a set of rotors, just got a new motor and the rotors I have need to ...

  1. #1
    Junior Member Hanabi's Avatar
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    1999 Trans Am Ram Air WS6

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

    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!

  2. #2
    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
    2001 Camaro SS

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

  3. #3
    Former Mopar Man 2002ssslp's Avatar
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    Silver & Blue
    02 Camaro SS, 04 GTO

    For low dollars I have had good luck with Brake Motive on Ebay.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

  4. #4
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    '02 WS.6 / '07 Suburban

    +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!

  5. #5
    Junior Member Hanabi's Avatar
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    1999 Trans Am Ram Air WS6

    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?

  6. #6
    Moderator 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

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

  7. #7
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    '02 WS.6 / '07 Suburban

    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

  8. #8
    Moderator Firebirdjones's Avatar
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    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.

  9. #9
    Senior Member JayTA98's Avatar
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    Mean Black
    1998 Trans Am

    R1concepts. have their rotors for 2 years.

  10. #10
    Veteran 0rion's Avatar
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    06 duramax

    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.

  11. #11
    Junior Member Hanabi's Avatar
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    Oh now THAT got my attention! Awesome no warping sign me up! lol ok so where do I go anyone have a website or ?

  12. #12
    Junior Member Hanabi's Avatar
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    OK ! Premium Slotted Rotors it is. R1 Concepts. Anything else I need to know? And thanks guys for the useful info (y)

  13. #13
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    '02 WS.6 / '07 Suburban

    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.

  14. #14
    Moderator Firebirdjones's Avatar
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    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

  15. #15
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

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

  16. #16
    Moderator 98TransAmWs-6's Avatar
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    98 TA WS6/ 01 C5 Corvette

    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.
    1998 Trans Am WS6 - Phantom
    421 CI LQ9, Tick Performance Custom Cam, TFS 255cc LS3 heads, Kooks 2" LT headers, Kooks 3" True Duals w/ high flow cats, FTP 104 lid, Speed Density Tune, 4" silicon tube, LS6 VCT, FAST 102 Intake, NW 102 TB, Oil Catch Can, SLP Bilstein Shocks w/ Vogtland Springs, CTS-V 4-piston Calipers w/C6 Z06 rotors, Stainless Steel Brake Lines, R1 concepts premium rotors, Hawk HP+ brake pads, VFN WSQ Hood, C5-R timing chain, SLP oil pump, E85 tune, Walbro 450 fuel pump, Deatschwerkz 95# injectors, Breathless performance headlights, Frost Tune, !HVAC.
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  17. #17
    Moderator Firebirdjones's Avatar
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    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.

  18. #18
    Moderator 98TransAmWs-6's Avatar
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    Black/ Silver
    98 TA WS6/ 01 C5 Corvette

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

  19. #19
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/a little mods...

    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

  20. #20
    Moderator Firebirdjones's Avatar
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    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

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