1LE conversion info??

[67 455 Bird ragtop]

I've done a search and can't seem to find a thread on converting my stock single piston calipers to the 1LE setup in my 67 'Bird. I'm running 15" Convo Pro's up front and would like to upgrade my front brakes before I get to far in my reassembly process. Any help in what all is required for this upgrade would be appreciated.

Or would I be better off just swapping out to the new Wilwood D52 calipers ???

[critter]

This might help:

http://transamcountry.com/community/...?topic=23740.0

[Randy67]

That link is for the 1LE swap on a second gen, won't work on your 67 due to your car being a rear-steer (70-up cars are front-steer). A C4 Corvette 12" brake setup would be an option that would work on your car, there are a few places with the brackets and such for doing this.

[67 455 Bird ragtop]

Thanks for the replies. The front vs rear steer issue is probably why I didn't find a thread. I'll check out the C4 12" conversion.

[critter]

Randy, good catch. I totally blew past his car being a first gen.

[67 455 Bird ragtop]

Looks like I stick with the stock single piston setup for now. Then after the car is done I'll swap out the front calipers for the new Wilwood D52s. Seems to be the easiest/cheapest way to go. Especially since I was already running the single piston calipers before I started this project. Main upgrades will be discs for the rear and a hydro boost setup. Will be curious to see how well it brakes compared to what it did MANY years ago when I last drove it.

[Skip Fix]

I just got my D52s from Frank-a really beefy caliper!5lbs 6 oz.Alot beefier than my metric Wilwoods. Now we'll let the engineers debate the improvement of two small pistons vs one large one

[Skip Fix]

FWIW the larger 94-96 Impala D61 pads fit them. Mainly the outer pad is larger than the Wilwood pads

[a67]

...for the new Wilwood D52s...

...Main upgrades will be discs for the rear and a hydro boost setup...

You will want to run some line pressure calculations before hydroboosting the D52 calipers (and equivalents). A hydroboost set up creates very high lines pressures, higher then good vacuum set ups.

Combined with the large piston area of a D52 there will be trouble.

Note that the pads with the larger surface area are D614.



Bob.

[67 455 Bird ragtop]

You will want to run some line pressure calculations before hydroboosting the D52 calipers (and equivalents). A hydroboost set up creates very high lines pressures, higher then good vacuum set ups.

Combined with the large piston area of a D52 there will be trouble.

Note that the pads with the larger surface area are D614.

Bob.

Actually it shouldn't be a problem for me. The hydroboost unit I'm using is from an Eldorado. They use the same calipers front and rear that I'm using. I also am using an Eldo combination valve. So I don't anticipate any issues. But trust me. I'll be extra careful the first few outings when the car is finished.