Question about your brake kit
 

So is it possible to use your front brake kit with S4 4 lug hubs and T2 4 pot calipers? I would like to stay 4 lug if possible and have the bigger brakes. Thanks again for the great things your doing for the FB community!!!

Sure thing!

Use a 4 lug FC hub, our kit and 4 piston calipers. Drill a 5 lug turbo rotor to 4 lug pattern.

When drilling a 5 lug to 5 lug you will pick up on one of the 5 lug holes and then drill 3 new holes on the 4 lug pattern.

For the rear you need GSL-SE axles and to drill the rotors the same way.

-billy

sweet idea for the GSL-SE!
Thanks billy for your great products for the 1st gens.

i have a continued question.

I bought the front brake kit as of 10 minutes ago.

While i have the assembly to run 5 lug in the front, can stock rx7 15" wheels work? I am aware that the 14" wheels would only work with the single piston 4 lug stuff (since it came with a 14" wheel) but i would rather have the 4 piston calipers and just deal with having a different wheel up front for now.

15" is the minimum on diameter. The backspace of the wheel will need to be 4.5".

-billy

so would a stock rx7 wheel work?

I believe you would need something else than stock FC wheels. I read somewhere that the FC 5 lug upgrade on an FB requires around +15mm offset wheels.

another question, since i am using GSLSE spindles, the assembly PDF says the 1/8" spacer is for non-se cars, so to make sure, that means i do not use the spacer when installing the kit, and just bolt the mount plate to the hub, correct?

Yes, FC wheels need a 1" spacer from what I hear.

THat part of the assembly manual is a mistake. The one that ships with the kits will have that marked out. That is only for the rear kits. A bit of copy/paste mess up.

So, you WILL use the spacers.

-billy

so i did some number crunching.

i want to use the BBS Vert wheels. Now they are supposedly a 15"x6" with a +38 offset

So that would mean "0" offset would be at a 3" backspace. The difference is then 38mm which divided by 25mm (~1 inch) i would have 1.52 inches.

So that would give me a total of about 4.52 inches of backspacing on a vert wheel

so they "should" work. yay! Now just waiting around for the kit to arrive.

Just remember that with 1" spacers, you really should use longer studs. The stock studs will likely be too short to allow the wheels to be torqued down properly. Anything less than 7 full turns on the lugnuts, is a disaster waiting to happen.

so after checking they are 6.5" wheels so i will rerun some numbers then.

15"x6.5" with a +38 offset.

so "0" offset would be about 3.25" backspace. So in total, 3.25" plus 1.52" inch would give 4.77" backspacing. That is a bit over what will easily fit, so a space will be needed, but not TOO bad of a size. Ill probably run a slightly stretched tire on it with something like a 45 sidewall. Ill see what clears from there.

hoping to get the kit installed this weekend!

Also is the PDF now updated and correct? I have SE front spindles, so does that mean i will have to use the spacers correct?

Gold spacers are always used on the front kit. No matter the spindles. Ignore that part in the front manual.
-billy