Humbly asking for advice on brakes and suspension

[Ess_Three]

Do you have any dimensions/drawings for the throttle body modification?
Regarding the brakes, from what's posted above am I right in thinking you need early TT/S3 312mm discs, the carriers from said vehicle and 6mm spacers, with the existing callipers and appropriate pads?

Yup, as long as you have 288mm front brakes to start with.

What he said! 

[spikenipple]

Sweet, I think mine has 288mm discs. It's a '94 16v. If I recall correctly all 16v models were fitted with 288mm..?

I know it's been asked many times before but will the 312mm setup fit with 15" alloys?
This is shaping up to be a nice little mod 

[thai-wronghorse]

Correct me if i'm wrong Glen but aren't 16's the smallest rim size you can go and even then not all will fit?

[Ess_Three]

Do you have any dimensions/drawings for the throttle body modification?

Just take the ramps off the TB, inside and out.
You can do it with a Dremmel, just don't touch the sealing face.
It's pretty obvious when you get the TB in your hands.

[Ess_Three]

Sweet, I think mine has 288mm discs. It's a '94 16v. If I recall correctly all 16v models were fitted with 288mm..?

I'm not certain that's true.
I think early 16vs may have been 280s. Not sure though.

If the calipers are the ATE type, and have the visible spring clip thingy on the outside face, they are 288s.

I know it's been asked many times before but will the 312mm setup fit with 15" alloys?
This is shaping up to be a nice little mod 

No. They won't.
16" minimum.

[thai-wronghorse]

Do you have any dimensions/drawings for the throttle body modification?

Just take the ramps off the TB, inside and out.
You can do it with a Dremmel, just don't touch the sealing face.
It's pretty obvious when you get the TB in your hands.

I had mine off for it's periodic scrub up this past weekend and i forgot just how rough and lipped these were. unfortunately my Dremel is out of suitable bits at the moment but i can feel a bit of fettling coming on over the next week or so.

[Ess_Three]

Correct me if i'm wrong Glen but aren't 16's the smallest rim size you can go and even then not all will fit?

They are...and multi-piece 16" wheels probably won't fit.
Anniversary wheels don't fit without work on the callipers...and they are 16"

Most 16" single piece wheels should fit...unless they are a very deep dish design...then they'll hit.

[thai-wronghorse]

Yeah i think it was 16v's after 96 that had 288mm discs along with the VR6's.

[Ess_Three]

I had mine off for it's periodic scrub up this past weekend and i forgot just how rough and lipped these were. unfortunately my Dremel is out of suitable bits at the moment but i can feel a bit of fettling coming on over the next week or so.

You can go further if you have access to a lathe with a 4-jaw chuck:

[thai-wronghorse]

Even with my standard 288mm discs there isn't really that much clearance on my 16'' BBS RX wheels. Once the 312mm's go on they'll be bloody close!