So I was browsing the RX-7store and came up on these replacement rotors for the FD. Just have a few quick questions:

1. Are these Brembo rotors bigger than stock FD rotors?
2. Difference between the two type of rotors?

I heard that the crossdrilled rotors tend to warp after hard agressive driving? Although they look nice and all, but IMO the slotted rotors look just as good.

Any comments?

TIA.

-Dan

BTW, I'm talking about the fronts of course.

 

I got my front brembo's and rear exact copy of the brembos for like 280 at www.irotors.com. No problems, been about 1 year.

 

And then Gotham Racing has these crossdrilled and slotted ones for $155/pair.........











ZeroBanger, which front Brembos did you get?

 

Those are same things I got on the front. IRotors sells the front for 139, then the rear for 139.=280 for 4. The front ones are actual brembo's, the rear are some other name since brembo doesnt make rear rotors for the FD, but they are identical design.

 

Do you also have upgraded SS brake lines and brake pads too? If so which ones?

-Dan

 

my brake pads are the rx7.com brake pads. Stock lines.

 

be careful with the cross drilled rotors even though they are brembos. the rotors were drilled after they had been hardened and could cause major cracking. i have seen it on a few hondas. if you go to brembo's website they have a cool video of a rotor being drilled while it is still glowing.
kris

 

if you look at the ones I have that are drilled and slotted, the slots do not extend to the end of the rotor and the holes are not drilled through.

So they are more effective than stock, but not *** fragile as the ones that have the holes all the way through.

 

David, Did you notice any performance gain from changing the rotors?

 

I have to say this was one of the most substantial things I have done for the feel of my car. My car feels amazing with them. I have to say the following are true for sure.

1) the new rotors weigh alot more than stock.
2) My stock front rotors had warped for the 2nd time
3) I got new brake pads at same time.

So my old brake pads had 80K miles on them. They were about 1/2 way worn out. That combined with the fact that my front rotors were warped its hard to compare. I do remember what my car felt like with the stock brakes/rotors prior to my rotor bieng warped and its night and day.

Rotors probably weigh 5-7 lbs more than stock. Also, my rotors were shaved down a bit so that may be part of the reason. I think mazda went nuts with lightweight rotors cause I was like...damn when I felt the difference.

 

Interesting..... that irotors.com place is having a combo deal special if you buy both the sets from them. I think I might do that with EBC Greenstuff and SS lines...... Damn bank tho....... What a freakin money pit I'm in.....


BTW, nice rims ZB.......

 

for me it was a no-brainer, mine had warped for the 2nd time in 9 months and could not be resurfaced.

they look cool more than anything Im sure.

 

How and why the hell did your rotors warp so much? I know you do a lot of drag, but that can't be the main cause right? If anything I should be watching my rotors since I do ocassional mountain runs....... Oh well......


BTW, I'm starting to not like my stock brake setup, it doesn't stop fast enough nor grab good enough ...... lol

 

I bought my car with the front rotors warped (133,000 miles), I had them resurfaced and at about 150K miles they warped again. they could not be resurfaced.

Has nothing to do with drag racing. I think it has to do with the light weight of the OEM rotors.