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Project of the week (RX-7 turb00 2 calipers on the fridge)

Posted by fridgewagon 
fridgewagon
James Kramer
Senior Moderator
Location: Bellingham, WA
Join Date: 03/22/2007
Age: Settling Down
Posts: 23

Rally Car:
??....81 Volvo 242GLT?...??


Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 12:04AM
I read through the 4-piston brake caliper thread, but I thought that I'd make my own since I'm actually in the middle of it and it is somewhat specific to the volvo I suppose.

Here are my observations mocking it up on a junk strut to the best of my ability:
The 240 rotor is spaced inward on its "hat" if you will 3-5mm more than the 740 rotors I had lying about.
It looks like I could use a 240 rotor with the RX-7 calipers. This gives me more disposable wheel options like OEM turbo 15s and steelies with my skinny snows. (175 or 185-15s).

Here is what I'm cooking up for thursday or next tuesday:

Make two adaptors.
One for the thicker, larger 940 rotors that fit within some of the less common 15" wheels, but fits in a 15" wheel barely and maximizes rotor size.

One for use with a 240 rotor that puts things a bit more inward and on an overall somewhat smaller rotor. This would be for mostly snow use and some disposable volvo wheels *caugh* pile of "virgo" turbo wheels *caugh*.

Sound reasonable? For anyone wondering, here is a pic of it being mocked up by JVL (and maybe Kevin?) ( and John Vanlandingham and Sofa King (hehe..say that 10..never mind), respectively):
http://students.washington.edu/khawki02/brakes5.jpg
240s are such cake for a good common brake caliper!
My own pictures to follow,
-James





Edited 3 time(s). Last edit at 04/25/2007 12:27AM by fridgewagon.
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john vanlandingham
John Vanlandingham
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Location: Ford Asylum, Sleezattle, WA
Join Date: 12/20/2005
Age: Fossilized
Posts: 14,152

Rally Car:
Saab 96 V4



Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 12:20AM
fridgewagon Wrote:
-------------------------------------------------------
>
> Sound reasonable? For anyone wondering, here is a
> pic of Kevin (Sofa King (hehe)), mocking it up:


WHO????
>
> 240s are such cake for a good common brake
> caliper!
> My own pictures to follow,
> -James
>
>






John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.
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fridgewagon
James Kramer
Senior Moderator
Location: Bellingham, WA
Join Date: 03/22/2007
Age: Settling Down
Posts: 23

Rally Car:
??....81 Volvo 242GLT?...??


Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 12:25AM
Respectively edited. I know you thought that up, and for whatever reason I always say Kevin when I see stuff on his car. I remember now. Thanks for reminding me...credit where credit is due...or something.
Thoughts? Thoughts on pads?



Edited 1 time(s). Last edit at 04/25/2007 12:26AM by fridgewagon.
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john vanlandingham
John Vanlandingham
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Location: Ford Asylum, Sleezattle, WA
Join Date: 12/20/2005
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Rally Car:
Saab 96 V4



Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 12:35AM
fridgewagon Wrote:
-------------------------------------------------------
> Respectively edited. I know you thought that up,
> and for whatever reason I always say Kevin when I
> see stuff on his car. I remember now. Thanks for
> reminding me...credit where credit is due...or
> something.
> Thoughts? Thoughts on pads?

Thanks, saves me smacking Kevvie.
Look who knows what to do for pads, Kevin's still using whatever junk was in the calipers when I pulled them, could be brand X cardboard and saw dust.

Ready for sumpin off the wall, typical crazy John stuff?
OEM Toyota pads.
They seemingly subsidized the hell outa some service parts (and make up the difference with outrageous prices on less common junk) and the pickups with the nice iron versions of the Sumitomos come with really excellent pads, and you might try them.
This was straight from Rod Millen about 17-18 years ago.
>
>
>
> Edited 1 times. Last edit at Apr 25, 2007 by
> fridgewagon.






John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.
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fridgewagon
James Kramer
Senior Moderator
Location: Bellingham, WA
Join Date: 03/22/2007
Age: Settling Down
Posts: 23

Rally Car:
??....81 Volvo 242GLT?...??


Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 01:04AM
Cool stuff. Makes me wish my parents still had their beater/hauler toiletta pickup truck around just so I could poke at it. That truck was pretty banged up on every panel because we actually used it like a truck (shocking I know). I also wasn't very nice to it once in a while when driven out in the country. The pads on it wore fairly fast, but it had very good stopping power with fairly minimal fade until you really got the calipers hot. Odd thing is, I almost wanna say it had sliding calipers, but I wish I had it around to check. It was a 93 toyota pickup thing.
Any specific toyota I should ask for? The existing pads in both my sets of RX calipers are fairly oily or suspect from sitting in a bin of volvo/RX-7 oil coolers waiting to be cleaned up (no idea why I put them there).
Should be fun to make some adapters! Then to delete two of the front brake lines and re-arrange the split!
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john vanlandingham
John Vanlandingham
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Location: Ford Asylum, Sleezattle, WA
Join Date: 12/20/2005
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Rally Car:
Saab 96 V4



Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 25, 2007 01:31AM
fridgewagon Wrote:
-------------------------------------------------------
>
> Any specific toyota I should ask for?
Late 80s to whenever 4x4 with the 4 piston vented Sumitomos, with the pad that looks nearly identical to the RX7.







John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.
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cablerhodes
Cable Rhodes
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Location: Boise, ID
Join Date: 01/26/2006
Age: Possibly Wise
Posts: 43

Rally Car:
Mazda RX-7 Turbo



Re: Project of the week (RX-7 turb00 2 calipers on the fridge)
April 26, 2007 10:34PM
Centrix ceramic pads work awesome as racing pads. I have them on my Turbo II rally car, they've lasted many rallies, no fade with alot of left foot braking (ok, they faded on Magic Mountain at Rim). Try em, you can get them at a reputable import parts store, and they're 35-40 bucks a set! Frugality rocks!

Cable

edit for spelling



Cable Rhodes
Boise, Idaho
'87 Mazda RX-7 Turbo



Edited 2 time(s). Last edit at 04/26/2007 10:39PM by cablerhodes.
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