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Originally Posted by mr2poweraw11
I hope someone can add to the pros and cons, no one in the mr2 forum has, but my rx7 friends have. The 85-86 rear brakes differ from 87-89, the later models i believe came with bigger rotors to reduce warping. Since my rear brakes failed, and im lazy, im looking to basically upgrade everything (brake system) while im already going to work on the car.
Here are my questions,
1.85-86 and 87-89 use the same size brake pads, so how is performance different?
I know the 87-89 discs are thicker, so more reliable? but thicker probably means heavier, which means rotating weight right? My friend also pointed out that bigger rotors means better leverage (at least in rx-7s).
2. what can i do to shorten stopping distance?
Heres a list from what i believe would help.
TIRES!
WEIGHT REDUCTION.
BIGGER CALIPERS/MORE PISTONS
BRAKE PADS
as far as drilled, slotted, brake lines, the stupid master cylinder lock thing. brake air ducts. i've seen somewhere a guy posted all sorts of hip brake upgrades, but it only shorten the stopping distance by a few feet. But everyone agrees that the feel improves, but reliability and maintance can go either way too.
Any advice? i know the early mr2's are pretty limited to aftermarket support, im hoping some of you guys will help.
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The 88/89 brake are probably all you are going to need. They are way better then the earlier version. The calipers are larger too if I remember correctly. I used to drive my 88 SC really hard with no brake fade. Unless you are putting on really wide tires, you don't really need better brakes. Spend your money on suspension/wheel/tires and a stronger clutch first.
There is so much information about modifying mr2 mk1's you could read for a week. Use google and do a search.
www.cardomain.com also has quite a few.
