Tony,
I concur with you and that's exactly the way I understood the calipers to
be. They have the same differential piston sizes, only being different with
respects to width for rotor design. I already run this style of caliper on
my TR4 with SOLID rotors.
Kind Regards
Peter Vucinic
TR-4
-----Original Message-----
From: Tony Drews [mailto:tony@tonydrews.com]
Sent: Thursday, 26 August 2010 2:02 AM
To: Enquiries Road & Track; Peter Vucinic
Cc: fot@autox.team.net
Subject: Re: [Fot] Toyota calipers for TR's
The article indicates that the wider calipers they specify appear to
be identical to the narrower calipers except for the added width. I
assume that means that the piston diameters are very similar, but it
doesn't specifically state that. We used the narrower calipers with
a TR-6 master cylinder for a while, I'm pretty sure. They sure look
that way in the pictures - the lumps in the casting look identical to
the narrower calipers bolted to my car, one being larger in diameter
than the other.
From the article:
The Toyota calipers are 4-piston units from a 1988- April 1989 Toyota
4-Runner, 4WD, 4Cyl. They look the same as the non-vented Toyota
calipers; they're just wider to fit the vented rotors.
Calipers - Fenco C8554, C8555, Cardone 19-827, 19-826 (includes fitting
kit).
Advance Auto parts 4/2006 price: $37.48 each w/ a $25 core (4/06)
- Tony
At 05:15 AM 8/25/2010, Enquiries Road & Track wrote:
>All the wider Toyota calipers I have found that suit vented rotors, have
>bigger caliper pistons resulting in too much stroke of the TR6 master cyl..
>I have found versions with 2 x large & 2 x smaller pistons and others with
>4 large pistons. The total piston area in all of these is much bigger than
>the stock TR caliper. The early hilux/4-runner ones made for solid rotors
>have differential size pistons that are almost identical in total piston
>area to a TR caliper. I am trying to find calipers with the smaller
pistons,
>that are made for vented rotors.
>The excellent article entitled "toyota brake install" by Lee Janssen does
>not deal with this issue.
>
>Terry O'Beirne
>Australia
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