Steering, Suspension, & Brakes

tips, technology, tools and techniques related to non-driveline mechanical components

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In


socorob
Robbie
La
(173 posts)

Registered:
09/17/2009 04:42PM

Main British Car:
1963 Sunbeam Alpine Series 2 Ford 2.8 V6

RX 7 turbo brakes
Posted by: socorob
Date: December 20, 2011 09:56PM

I had a lot of free time today, so I went to the brembo link and found 22mm rotors. These will fit inside the rx7 turbo II calipers. I only looked at 10-11.25 inch diameters. I was looking for what would fit in 15 inch wheels. Now some of these years and models may have only had 1 certain package that had the right rotor, so if anyone is using this, do the proper research before buying anything. I was mainly looking for a rotor to use with the rx7 caliper for a sunbeam alpine brake upgrade. Looks like an 88 Mazda B2600 truck or 85 300 ZX rotor may be the best fit for the way it mounts. Heres what I came up with, the last number is backspacing approximate in inches.
85-91 rx7 2.1
84-89 300zx 1.05
90-97 infiniti g20 1.64
88-00 maxima 1.64
87-91 camry 1.66
85-89 celica 1.66
07+ corolla 1.58
99-04 ford focus 1.34
99-05 fusion 1.34
94-98 mazda 323 1.54
91-97 mx3 1.54
88-84 nissan 240sx 1.64
200sx 1.64
91-94 celica 1.58
87-02 corolla 1.66
87-98 mazda b series .54?
83-86 nissan pickup .39 but the rotor is less than 10"
83-92 nissan 4wd pickup .87

Lots of other cars, hyundais, audi,bmw,vw,mini and volvo use the same thickness rotor, but i was trying to find ones mainstream as possible, with a lot of cars on the road still using them.



Edited 1 time(s). Last edit at 12/21/2011 12:10PM by socorob.


mgb260
Jim Nichols
Sequim,WA
(2120 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: RX 7 turbo brakes
Posted by: mgb260
Date: December 21, 2011 12:12AM

Robbie, 84-85 300zx non turbo is used by Datsun Z guys with aluminum adapter plate. Yours would be similar but smaller center hole and dual pattern.
84-85 nonturbo 300zx.jpg
spaceronrotor.jpg



Edited 1 time(s). Last edit at 12/21/2011 12:47AM by mgb260.


socorob
Robbie
La
(173 posts)

Registered:
09/17/2009 04:42PM

Main British Car:
1963 Sunbeam Alpine Series 2 Ford 2.8 V6

Re: RX 7 turbo brakes
Posted by: socorob
Date: December 21, 2011 08:18AM

Do te z guys use Mazda calipers or mainly Toyota ones? It looks like all they need is a spacer so 1 hole pattern.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6069 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: RX 7 turbo brakes
Posted by: BlownMGB-V8
Date: December 21, 2011 10:07AM

Does Brembo list 24mm rotors? I've been looking for a scalloped 24 that uses a hat. something in the 11-12" range maybe, although 22's would work.

JB


roverman
Art Gertz
Winchester, CA.
(3149 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: RX 7 turbo brakes, Why not a waste gate ?
Posted by: roverman
Date: December 21, 2011 11:54AM

Robbie, How bout a "pic" of those series II Turbo RX7 calipers ? I have pleny of the aluminum 4 pots, but don't know for sure if their Turbo. Thanks, roverman.


socorob
Robbie
La
(173 posts)

Registered:
09/17/2009 04:42PM

Main British Car:
1963 Sunbeam Alpine Series 2 Ford 2.8 V6

Re: RX 7 turbo brakes
Posted by: socorob
Date: December 21, 2011 12:23PM

Jim,
I saw some hondas and acuras use 23mm rotors, I don't know if that helps any.
[bremboaftermarket.com]
This is where I searched for the info. It makes you choose 2 fields, so I picked 22mm and then went thru 4,5,& 6 lug since the bolt pattern doesn't matter for the way I'm planning on mounting them. I'll probably get an adapter machined like the guy did on www.myturboalpine.com did who is on the sunbeam board.


mgb260
Jim Nichols
Sequim,WA
(2120 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: RX 7 turbo brakes
Posted by: mgb260
Date: December 21, 2011 02:06PM

Robbie,the Z guys luck out with same pattern. They use the Toyota calipers. I would use the spacer/adapter on the other side of the rotor with the smaller Sunbeam pattern between the rotor pattern.



Edited 1 time(s). Last edit at 12/21/2011 02:08PM by mgb260.



mgb260
Jim Nichols
Sequim,WA
(2120 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: RX 7 turbo brakes
Posted by: mgb260
Date: December 21, 2011 02:34PM

Art, there are pics of the earlier Turbo II finned calipers and newer smooth aluminum calipers on previous threads. They use the same pads and rebuild kits. If you want performance pads specify the 93-95 newer ones. Here are more pics:
439016335_tp.jpg
fcstop14.jpg
brakes!.jpg



Edited 1 time(s). Last edit at 12/21/2011 02:49PM by mgb260.


roverman
Art Gertz
Winchester, CA.
(3149 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: RX 7 turbo brakes
Posted by: roverman
Date: December 22, 2011 11:48AM

Yep, them be the one's. $7 ea at pic-a-part, 1/2 off days. To re-cap, why don't we use a $30 Wilwood, lightweight, .810" thick rotor + aluminum hat to dissipate heat ? Thanks, roverman.


socorob
Robbie
La
(173 posts)

Registered:
09/17/2009 04:42PM

Main British Car:
1963 Sunbeam Alpine Series 2 Ford 2.8 V6

Re: RX 7 turbo brakes
Posted by: socorob
Date: December 22, 2011 10:51PM

because .810 is only 20.5 mm and the mazda needs 22mm. Id go that route if i could find the right rotor, but i dont think wilwood or outtlaw makes any that size.


Bill Young
Bill Young
Kansas City, MO
(1337 posts)

Registered:
10/23/2007 09:23AM

Main British Car:
'73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep

authors avatar
Re: RX 7 turbo brakes
Posted by: Bill Young
Date: December 23, 2011 08:07AM

What about making a spacer shim to fit behind each pad? That would effectively reduce the rotor gap enough to work with the .810 rotor yet keep the pistons in the correct position in the calipers. I've been thinking about this option so that I could use different calipers on my Midget's .38" rotors. Easier than having the caliper halves machined to narrow them. Still might have to do that for wheel clearance, but that's the plan for now.


Sorry, only registered users may post in this forum.