Chris Brucciani wrote:
>
> Mark Dent Wrote:
>
> After thinking about the Toyota caliper conversion I have a few
> questions.
>
> 1. The calipers are from a 78-82 2wd pickup right?
> 2. Do I need new rotors or will stock work? 68 1600
> 3. Are they easy or hard to get?
> 4. is it an easy, bolt on job or do I need other things?
> 5 Is it more than stock calipers or cheaper or about the same $$
Are we talking roadster or Z car here?
Sounds like there is some confusion (possibly my own).
The 4 piston calipers from the Toyota trucks are the same bolt
pattern as the Z caliper. This makes it relatively straight
forward to put the 4 piston calipers on a Z. You should be
able to find a complete write-up on this in the Z archives.
The Z and Toyota bolt pattern is NOT the same as the roadster.
You CAN put the calipers on a roadster, but it is a total
retrofit. Custom made brackets, machined rotors, lines, everything.
It is considerably more expensive than stock. I believe Dean at
Fairlady sells a complete kit and there may be others around.
Then there is the whole master cylinder issue. On one of the cars
I used some calipers about the same size as the Toyota. With them
there was considerably more pedal travel than with stock. I went
to a larger bore master and it improved that, however as I remember,
considerably more pedal effort was required since a smaller master
results in higher operating pressure (an therefore clamping force).
The bigger master had less travel, but took more force once it
firmed. Master cylinder balancing act. Anyone care for dual
masters and a balance bar????
One of the guys on the list here put in a power brake booster,
this takes the system pressure up with less pedal effort,
but that is anything but a clean installation!
I have built several different brake kits for different cars (mostly
just experimenting) but never pursued it commercially due the
enormous potential legal liability.
You might ask Dean what master he reccomends. See what I mean
about liability?--- You said I needed a 3/4 master, well it didn't
work, your brake system just killed my son. I'm going to sue
you till you can't spell roadster anymore!
Jim Tyler
Topless Datsun
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