I used to race Fiat X 1/9s - quite well too (and THAT's not easy). I used semi-racing pads to increase the force necessary to lock-up the wheels. That increased range of "pressure" gave me the ability to get closer to lock-up without actually doing so. In race trim the Fiat was only a little heavier than the CGT will be, so I'm hoping for a similar experience.
I expect the Toyo calipers to do the same - not so much increasing the stopping force, but giving me more control when on the edge. I'll initially be using 185/65-13s if I can find them; 175/60-13s otherwise. After getting a handle on clearances and offset, I'd like to up them to 205/60s someday, so I "will" have a little more rubber on the road too.
And remember the "Coolness" factor. I also kinda like the way they look. Like I said, I'm not shooting for ultimate performance - maybe just a little bit more. (Otherwise why would I be installing triple CD150s - I like the way they look! Don't shoot me - lol)
This is a really great exchange. Love this place.
Ciao! - Jim M
--Previous Message--
: If you can lock up your front brakes
: under hard braking, going to different
: calipers will not give you more braking
: power - your tires are the limiting
: factor at that point. Both my GT6 and
: my TR4 use the same stock Girling 16P
: or SP calipers and both can lock the
: front brakes, once rebuilt so the
: pistons all move freely, fitted with
: braided stainless lines, good pads,
: clean rotors, etc.. Now, if you are
: going to fit huge, super sticky tires,
: maybe then you need more braking force.
: Once you change one component, it
: leads to another, as you pointed out -
: if you change the calipers, you may
: need to change rear wheel cylinders, or
: go to a dual master set-up with a
: balance bar, enabling you to put in
: different size master cylinders for the
: front and rear circuits . . . My advice
: would be to get the stock system up to
: max performance first and see how it
: works - with the right pads, lines and
: fluid, it's good enough enough for my
: vintage race cars, even in a one hour
: enduro.
:
: --Previous Message--
: Thanks Craig,
:
: First thing: If you or anyone reading
: this is a member of Club Triumph,
: please go to the Spit/GT6 forum thread
: "Rev Limit" and tell him to
: put an old (or new) condenser back in
: his distributor. Thanks.
:
: OK, on to the brakes.
:
: Damn. Already bought and rebuilt the
: Toyos. Went with the mod because of
: the comparison test results in VTR. Of
: course those were on a TR6 and the
: greatest improvement came after they
: added larger rear cylinders to the
: Toyos. I expect the weight bias to be
: even more nose heavy in the CGT, so
: playing with the rears after adding the
: Toyos may actually be the key to
: improved stopping (as in the TR6).
:
: However, I'm not going to race the car,
: so ultimate performance isn't the goal
: anyway (but I've at least found ceramic
: pads for them). Some of the mods I'm
: making to the car are strickly because
: I think they're cool. Yup, and I'm the
: ONLY guy here who does dumb stuff like
: that (You all "know" who
: you are - lol).
:
: I think I have 16Ps ('68 Mk1 GT6) not
: sure if there's a big difference
: between them and the PBs (or if I've
: been misinformed completely - that
: never happens! - lol)
:
: I do have an after market set of
: aluminum 13x5.5" wheels though.
: The interference possibility you raise
: could be a concern though. I'll get to
: play with the brake system this weekend
: - we'll find out about interference
: soon enough.
:
: Thanks for a great reply - I know a bit
: more about the system now.
:
: Ciao! - Jim M
:
:
:
: --Previous Message--
: Jim,
:
: If you've got 16PB's already, think and
: read hard before you do it.
:
: I fitted the Toyota four pots (really,
: they're only "2 a side"
: pots), and I'm going to refurb the
: Girlings and go back.
:
: The cons of the Toyota calipers are:
:
: They're no lighter than the Girlings.
: Actually, mine started out slightly
: heavier.
:
: No real performance pads available
: (they're pickup callipers, and the pads
: available are pickup quality).
:
: They have a wider dimension on the
: outboard side - mine didn't rub on
: stack wheels, but sure did on my
: minilites.
:
: They have a taller dimension on the
: inside diameter. The didn't rub on
: standard hubs, but they fouled on the
: canley's alloy hubs.
:
: The pros of the Girlings are:
:
:
: You can get performance pads. Lots of
: them.
:
: You can space them and fir 2.8i Capri
: rotors if you want to fillde around.
:
: They do work.
:
: I've shaved the hell out of my 4 pots,
: and trimmed the inside of the
: minilites, but they still clip under
: heavy braked turns, so it's back to
: Girlings for me.
:
: Theres a wealth of posts about this on
: Sideways Technologies and Club Triumph.
:
: C.
:
: --Previous Message--
: Hi All,
:
: I'll be fitting the Toyota four piston
: brake calipers to the
: "Franken-6" (catchy, ain't
: it?).
:
: Question: I have to assume that the
: Toyo brakes will use a bit more brake
: fluid, which will mean further pedal
: travel. Won't that cause the rear
: brakes to lock-up early and continually
: give me a differential pressure warning
: light?
:
: If anyone has the answers to these,
: please let me know of a good
: mitigation(s). (TR6 rear cylinders,
: maybe?). I'm thinking of designing a
: diagonal braking system to avoid the
: differential light problem (messy - it
: would probably make Medusa look like
: she needed a perm)
:
: Ciao Y'awl - Jim M
:
:
:
:
:
:
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