What do i need to do a complete/working 4 pot caliper conversion???
I have the front 4pot calipers right now from a s4 t2...i want to install them in a 91 coupe...what type of rotors do i need for the front to fit the 4 pots???
should i just get a set of 4 brembo rotors???(if so what kind do i need for the front and the back, i have 91 coupe rear calipers and want to install 4 pots in the front)
So beside the rotors, do i need anything like master cylinder or lines or anything???
or is the calpiers and the rotors enough???
thank you
should i just get a set of 4 brembo rotors???(if so what kind do i need for the front and the back, i have 91 coupe rear calipers and want to install 4 pots in the front)
So beside the rotors, do i need anything like master cylinder or lines or anything???
or is the calpiers and the rotors enough???
thank you
You need the TII rotors, Not sure if the 4 pot calipers will fit on an N/A 5 bolt hubs.
Also you will need the right brake lines for those calipers if you don't already have them.
As far as i know the N/A Mastercylinder will work as i used it for a whole summer with no problems at all
If you can manage to shave a few pounds off the car as well as doing this brake upgrade you will really notice a difference in stopping power, specially if you combine that with smaller diameter tires with a wider contact patch
I.E. 205/40/R16 what i'm using. Really makes your passengers put their hands forward
Also you will need the right brake lines for those calipers if you don't already have them.
As far as i know the N/A Mastercylinder will work as i used it for a whole summer with no problems at all
If you can manage to shave a few pounds off the car as well as doing this brake upgrade you will really notice a difference in stopping power, specially if you combine that with smaller diameter tires with a wider contact patch

I.E. 205/40/R16 what i'm using. Really makes your passengers put their hands forward
Originally Posted by Rotary_7
I have the front 4pot calipers right now from a s4 t2...i want to install them in a 91 coupe...what type of rotors do i need for the front to fit the 4 pots???
should i just get a set of 4 brembo rotors???(if so what kind do i need for the front and the back, i have 91 coupe rear calipers and want to install 4 pots in the front)
So beside the rotors, do i need anything like master cylinder or lines or anything???
or is the calpiers and the rotors enough???
thank you
should i just get a set of 4 brembo rotors???(if so what kind do i need for the front and the back, i have 91 coupe rear calipers and want to install 4 pots in the front)
So beside the rotors, do i need anything like master cylinder or lines or anything???
or is the calpiers and the rotors enough???
thank you
No need to change the discs, however the rear ones on the single pistons FC's have a solid rear disc vs the double pistons caliper FC's that have a vented one.
All 5 lugs FC's use the same brake pads........
As mentioned before, you need:
- Front Calipers
- Brake lines
- Hard lines (it goes in between the caliper and the brake lines) <----- you can make your own

https://www.rx7club.com/showthread.p...per+conversion
Eats, Sleeps, Dreams Rotary
iTrader: (1)
Joined: Jul 2001
Posts: 3,383
Likes: 3
From: Stinson Beach, Ca
i dont know about hardlines, but you may need the soft lines that go to the caliper because i know that for SS lines there are two diff kits. And part of those kits replaces a short piece of hardline that goes and attachs at your strut and then has a rubber hose to your caliper. you may just be best off buying some ss lines for 4 piston. cost around $80 or so
anyone know if the other hardlines just mate right up to it?
anyone know if the other hardlines just mate right up to it?
i juss ordered some 4pot brake lines off www.mazdatrix.com as well as a rebuilt kit...
BTW: how do u pay for the items you ordered ar mazdatrix....gets me all confused.....i picked C.O.D or sumthing since i cant find a place to put in my credit car number.....so does that mean they'll send it to my door and then i pay them after words or sumthing???
thanks
BTW: how do u pay for the items you ordered ar mazdatrix....gets me all confused.....i picked C.O.D or sumthing since i cant find a place to put in my credit car number.....so does that mean they'll send it to my door and then i pay them after words or sumthing???
thanks
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Eats, Sleeps, Dreams Rotary
iTrader: (1)
Joined: Jul 2001
Posts: 3,383
Likes: 3
From: Stinson Beach, Ca
yep, since you picked COD. id call em in the morning and explain and change it before they ship it.
or just leave it COD.
never dealt with m-trix so dont really know.
or just leave it COD.
never dealt with m-trix so dont really know.
Originally Posted by Rotary_7
hhmmm....what exactly is a hard line???
Originally Posted by Node
i dont know about hardlines, but you may need the soft lines that go to the caliper because i know that for SS lines there are two diff kits. And part of those kits replaces a short piece of hardline that goes and attachs at your strut and then has a rubber hose to your caliper. you may just be best off buying some ss lines for 4 piston. cost around $80 or so
anyone know if the other hardlines just mate right up to it?
anyone know if the other hardlines just mate right up to it?
You need the:
-4 pot calipers
-Brake lines for the 4 pot calipers (not the singles)
-Hard Lines from a 4 pot caliper engine, or you can make your own
To make things easier:
http://www.iluvmyrx7.com/2ndgen/manu...ing_system.pdf
Page 42 on Adobe or P-40 on the manual itself. Look CAREFULLY at item number 1 on the picure, that is the Hard Line
http://www.iluvmyrx7.com/2ndgen/manu...ing_system.pdf
Page 42 on Adobe or P-40 on the manual itself. Look CAREFULLY at item number 1 on the picure, that is the Hard Line
is it tha thing that connects the caliper to the brake line in this pic???
http://i7.ebayimg.com/03/i/03/47/66/d3_1_b.JPG
http://i7.ebayimg.com/03/i/03/47/66/d3_1_b.JPG
Originally Posted by Rotary_7
is it tha thing that connects the caliper to the brake line in this pic???
http://i7.ebayimg.com/03/i/03/47/66/d3_1_b.JPG
http://i7.ebayimg.com/03/i/03/47/66/d3_1_b.JPG
Originally Posted by Rotary_7
Can i have instructions on how to make my own Hard Line??
Thanks
Thanks
You need:
-The tubes
-End fittings
-Tube bender
Everything else is common sense.





