stalin05

Hey can anyone tell me if drilled or slotted rotors really help? and maybe where i can get some and for how much? i was lookin on ebay and found theyse. i have all disk:lala:

http://cgi.ebay.com/ebaymotors/ws/eB...922891631&rd=1

90firebird

i think that just replacing your rotors with drilled and slotted ones won't really help... i believe you need better pads, bigger rotors, and calipers with more clamping force...

IROCThe5.7L

Dumb question:

I have 4 wheel disc, I could use those on the back too right?




The shipping on those is expensive!

Hg

I think the rears are a different part, but I'm not positive.

Apeiron

Entirely different.

mjustdie

I have cross drilled slotted rotors up front and they made a difference. definitely stops quicker but they eat up pads faster too.

ShiftyCapone

iTrader: (7)

They are not needed for street use. They are meant to be used for racing applications where breaking occurs frequently from high speeds. They dissapate heat faster as well as evacuate any brake gas that is generated during breaking.

DMCPONT

I go the meduim here.. JUST SLOTTED.. not cross drilled.. tend to see too many drilled+slotted rotors cracked up.. especially with all the supercheap chinese rotors swaping the markets...

.. As the previous posters sorta said... <li>(1) service your calipers... (pads only do not =brakes).. <li> (2) Buy a decent grade of pad.. my preference is for semi-metallic.. not standards & not some type of super hard race pad.. no point in street cars. <li>(3) Make sure your flexible hose lines are not hardening up internally and restricting flow ie.. buy new hoses AT LEAST every ten years... <li>(4) .. if you want another easy way out.. go to Napa or Autozone etc & order some remanufactured calipers for a straight swap over. <li> (5) .. if you want replace the wheel bearings and seals and also even just the front rotors with a SLOTTED.... that should be enough for a driving street car.

Also too .. depending on your year model.. if its 82-86.. then the rear calipers are faulty from Factory unless its had the recall kit with new pistons.

89Warbird

Cross-drilling serves 3 purposes.
#1 to allow gas from the binders in the pads to escape instead of building up and reducing stopping power. REALITY - Binders now used do not create these gases any more so it' not needed.
#2 Reduce unsprung weight - simple drill a bunch of holes reduces the weight and that helps the suspension respond better.
#3 Better Heat dissipation - the holes give more surface area exposed to air to dissipate heat. Really not enough to worry about.

For street cars a total waste of money.

Slotted Rotors, See number 1 above, second it's supposed to help sweep the water off the rotors for quicker stopping in wet weather.

For street cars it's not necessary but the added cost is usually minimal and therefore worth it. But mainly they just look cool.

Norwood

iTrader: (1)

If you get the slots, they never tell you that they are directional. The leading edge of the slots should be on top to get the full benifits of cooling and gas evacuation. just in case ya didn't know.

LPE383

I currently can't think of the company that I purchased rotors from for my GF's eclipse. I ordered them for both of our cars and they sent the wrong ones for both. So I sent them back and they sent them again. The ones for the eclipse were right and mine were wrong again. I was mad so told them to suck a **** and got my money back. My gf likes hers but now it's principality and I won't buy from them even tho I want them. I'm stubborn!

Scania

I use drilled rotors on my car and so far nó problem with cracks and yes the work better than the stock one if you drive hard.
I use autospeciality drilled rotors and not the stock pads i found better ones at summitracing.

LT1guy

iTrader: (1)

I put a set of the drilled and slotted rotors from JC whitney on a third gen (front only, they sent the wrong backs), and after about two years and 20k+ miles of hard street driving (and an afternoon on a road course), they're not cracked. I was a little sceptical at first, but they have performed fine...not sure how much difference they made (rotors were underspec before), but they look cool and there have been no problems. BTW these rotors were made in Canada, and appear to be at least the same quality you get in a stock parts store rotor.

mjustdie

glad to hear that lt1guy, cuz that's where i got mine at. but i've only put about 5k on the car since i had them and was hoping they'd hold up for a while longer.