Swapping BG hubs/knuckles to a BF GTX?

[808]

I know I'm using Miata brake stuff some where... either rotors or calipers.

[Scott@USRT]

I know I'm using Miata brake stuff some where... either rotors or calipers.

You're using "Miata brake stuff somewhere" on a BG knuckle (front/rear)?

[temporary threadjack]
Btw, per recommendation from another enthusiast, the Miata (2001+ w/sport brake package) brake booster works great with the 929 master cylinder. Typically the somewhat larger Protege booster is utilized. However, I prefer the smaller booster + big MC for best modulation/pedal feel. This combo is great with the Miata calipers that we are probably discussing[/threadjack]

K, back to the hybrid this/that talk...

[808]

Correct. i didn't do the swap, the previous owner did. I need him to give me a list of all the different car parts on here one of these days.

[trailrider098]

I forget the original question but If you swap to the BG 4WD rear parts you just use the BG calipers and rotors instead of building the brackets, using miata calipers and galant rotors.

EDIT: people posting faster then i can think. Matt you prob have miata rear calipers, with a custom braket to hold them and a galant rotor... thats the miata swap for brakes. the escort/protege caliper only works up front on the BF knuckle

[Scott@USRT]

...If you swap to the BG 4WD rear parts you just use the BG calipers and rotors instead of building the brackets, using miata calipers and galant rotors.

Jeff, how do the BG brakes compare in rotor and pad size to the Galant + BF setup? Or, in other words, is the BG stock set up an up or downgrade from the full Galant arrangement?

[trailrider098]

bg and galant stuff are almost 100% match. thats why when you swap the galant rotors on the bf hubs and use a BG caliper it fits. the galant rotor is super close to a bg protege rotor, it just happens to have the same lug pattern as the bf and correct offset for the BF-> galant swap

[Scott@USRT]

Excellent, thanks for the clarification! So, it seems to me that the reasons for the BG "everything" swap is to get stronger wheel bearings, a more common 4x100 wheel bolt pattern, and also so as to have a wider range of suspension options. Is that the extent of it?

P.S. The steering knuckle/tie-rod geometry is not compromised, correct? I did the Capri knuckles before on my BF so as to get quicker steering. HATED IT.

[trailrider098]

That is correct, 4WD is 4WD, BF or BG

im surprised that when you put the capri knuckels on the tie rods didnt hit the frame

[Scott@USRT]

I'm surprised that when you put the capri knuckels on the tie rods didnt hit the frame

I recall switching to tie rods from a... Nissan 240SX? Maybe that made the difference? It's been a while. Regardless, the bump steer characteristics were "nastified", so I don't recommend it.

P.S. The BG set up eliminates the überstupid BF captive rotors, yes? I'm hoping that the rotors attach conventionally to the outside of the hubs...

[trailrider098]

Yes, BG rotors are on the outside of the hub

[808]

I feel like turning radius is tighter with the bg hubs. That could be my imagination though.

[redheddude222]

So are the 2wd front hubs different from the 4wd front hubs? (BG)

[trailrider098]

So are the 2wd front hubs different from the 4wd front hubs? (BG)

4wd knuckels have longer arms for the tie rods since the steering rack sits up higher and farther back

[redheddude222]

Hmmm. So would it hurt to use the 2wd front hubs?

[808]

The hubs themselves I believe to be the same, except for maybe spline count. The upright/knuckle is different though. The fwd knuckle would require a different tie rod, and most people don't seem to enjoy the resulting change in steering.