How to convert 66GTV pedals?

[rogerspeed]

Quote:

Originally Posted by papajam I have to ask the question, why convert in the first place? ....

[101/105guy]

My $.02 worth:
1st series duettos have NO booster and work great. In fact, many 105 GTV, Guilia Super owners just disconnect the single booster if it fails with no ill effects.

On my '67 GTV, I installed a complete '69 pedal assy when car had 1750 eng/ trans/ brakes installed. Used single master cyl, single booster and 1750 rear pressure limit valve on rear brakes.Works great and the only non- correct item in the eng. bay is the clutch fluid jar.

[davbert]

Quote:

Originally Posted by alfa_chan Any suggestion? The firewall mounted brake is one of the reason I'm looking for a 69> GTV instead of a step nose (LSD is the other one) I've been looking through the web and found nothing about this topic. I was thinking of bolting a Tilton onto it (together with hydraulic clutch), would that be possible? Thank you very much.

[Andrew]

To me, the hanging pedals give a much more natural "swing" angle for your leg, especially on the clutch. Floor pedals kind of fight with your ankle and knee, especially if you're tall.

I think Alfa went to these pedals for a few reasons:
1. US legis required that they go to dual circuit brakes beginning 1968, and the floor pedal MC did not allow room for a single booster "upstream" from the MC, hence the dual "downstream" boosters. Moving the MC up gave room to put a single, much simple booster between the pedal and the MC, rather than between the MC and the calipers.
2. Servicing the floor MC is a pain, and it gets rusty and beat up down there. Moving it up in the engine compt made it a lot easier to deal with. It's probably a toss-up whether the floor or hanging MC gets hotter due to exhaust proximity.
3. Moving it up also made more exhaust, etc., room under the floor as Anthony mentioned.

There may also have been crashworthiness reasons for moving the pedal box out of the floor.

It's a big conversion job for a street vehicle.

Andrew Watry

[craeder]

it's a racer. there is a rollbar horizontally just above the steering column. Fron this there are 2 bars that go horizontally forward to the reinforced firewall. Those bars has brackets welded to them with holes at 1 inch spacings sot he tilton assembly can be moved forward and backward to one's preference.

[olycarguy]

I've just finished the "rough-in" on the hanging pedals on my gtjr. The previous owner had done quite the hack job.....so I wanted to straighten it out. They had converted the car to factory hanging pedals.....poorly. There were many stages between photo's to clean up the opening, but it was a very straight forward operation. I bought the pedal assy. with master cyl. for close to $500.00.........about a 1/4 of the price of tilton. I'll post more photo's if desired. The car is 67 gtjr I've restored for vintage racing. For the purists, the car was so badly beaten it was headed for the wrecking yard when I saved it. There was no way the car could converted back.....so it became a race car instead.

[alfazagato]

I have to agree with Papajam, floor mounted pedals were designed to replicate the angular movement of the ankle. With hanging the two arcs diverge. Leave well alone.

[Peter]

It felt a little awkward in the beginning, but now I think there's nothing wrong with hanging (pedals, that is )
BTW, my 67 Duetto has one brake booster, 69's have two, at least the US versions..could be the very early 66's have none, I would need to double check